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Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Gabon  

Science Journals Connector (OSTI)

Gabon covers an area of some 270,000...2, straddling the Equator on the west coast of Africa. Partly dissected plateaux in the interior, rising to some 600–1,000 m above sea level, give way to a fairly narrow co...

C. J. Campbell

2013-01-01T23:59:59.000Z

2

Gabon, Congo, Cabinda and Zaïre  

Science Journals Connector (OSTI)

The combined coastline of Gabon, Congo, Cabinda (a separate province of...1985...). It forms the oceanic boundary of two Mesozoic and Tertiary sedimentary basins, those of Gabon and the Congo, which are separated...

P. Giresse

2010-01-01T23:59:59.000Z

3

Report on Global Environment Competitiveness of Gabon  

Science Journals Connector (OSTI)

Gabon is on the west coast of Central Africa. Gabon is bordered by Equatorial Guinea to the ... evaluation model, the environment competitiveness index of Gabon ranks at 19 in 133 countries.

Li Jianping; Li Minrong; Wang Jinnan…

2014-01-01T23:59:59.000Z

4

Workover off of Gabon  

SciTech Connect

In a 2-month workover campaign off the coast of Gabon, West Africa, Elf Gabon serviced 41 wells off 14 platforms, using coiled tubing to convey workover fluids pumped from a dynamically positioned ship. Use of the dynamically positioned vessel, in place of a barge that requires towing to the wellsite and anchorage in place by mooring lines, helped reduce workover cost per well by 37%. Most of the savings resulted from fewer days required for each well because the service ship travelled on its own power and pumped various workover fluids from its decks. A supply ship shuttled replacement materials from shore to platform during the campaign. A production increase of 6,177 b/d resulted from the workover, with a payout time of 80 days.

Obame, L.O.; Sutcliffe, J.C.

1987-04-27T23:59:59.000Z

5

Atlas de la Biodiversit Marine du Gabon Marine Biodiversity Atlas for Gabon  

E-Print Network (OSTI)

Atlas de la Biodiversité Marine du Gabon Marine Biodiversity Atlas for Gabon Version 1: Avril 2012, Matthew J Witt #12;Atlas de la Biodiversité Marine du Gabon Marine Biodiversity Atlas for Gabon 1 Introduction Bienvenue à l'atlas Darwin de la Biodiversité Marine du Gabon (version 1; avril 2012). La mission

Exeter, University of

6

Gabon-World Bank Climate Activities | Open Energy Information  

Open Energy Info (EERE)

Forestry Topics Background analysis Country Gabon Middle Africa References World Bank Project Database - Gabon 1 Active World Bank Climate Projects in Gabon Forest Carbon...

7

Gorilla diet in the Lopé Reserve, Gabon:  

Science Journals Connector (OSTI)

The results of an analysis of gorilla diet in the Lopé Reserve, Gabon are presented. Samples were assayed for nutrients...

M. Elizabeth Rogers; Fiona Maisels; Elizabeth A. Williamson; Michel Fernandez…

8

Archaeology in Gabon, 1886–1988  

Science Journals Connector (OSTI)

This is the first attempt at synthesis of archaeological research conducted in Gabon between 1982 and 1988. Middle Stone Age...

Bernard Clist

1989-01-01T23:59:59.000Z

9

Changing antibiotic susceptibility of Neisseria gonorrhoeae in Franceville, Gabon.  

Science Journals Connector (OSTI)

...Neisseria gonorrhoeae in Franceville, Gabon. M Peeters E H Frost M Collet S Ossari...Neisseria gonorrhoeae in Franceville, Gabon. | Susceptibilities to penicillin, cefotaxime...pharmacology Drug Resistance, Microbial Gabon Gonorrhea microbiology Humans Microbial...

M Peeters; E H Frost; M Collet; S Ossari; F Yvert; B Ivanoff

1987-08-01T23:59:59.000Z

10

Pauvreté, santé et genre au Gabon.  

E-Print Network (OSTI)

??Le Gabon affiche, paradoxalement à son niveau de PIB par tête élevé, des indicateurs de santépauvres. Fondée sur les données de l’enquête démographique et de… (more)

Nkale Bougha Obouna, Estelle

2011-01-01T23:59:59.000Z

11

ADAPTIVE IMAGE FUSION USING ICA BASES Nikolaos Mitianoudis and Tania Stathaki  

E-Print Network (OSTI)

fusion. The main motivation was to use bases that can fit arbitrarily on the object types we are go- ingADAPTIVE IMAGE FUSION USING ICA BASES Nikolaos Mitianoudis and Tania Stathaki Imperial College London, Exhibition Road, SW7 2AZ London, UK ABSTRACT Image fusion can be viewed as a process

Mitianoudis, Nikos

12

New Horizons for Spatial Data Quality Research Suzie Larrive, Yvan Bdard, Marc Gervais & Tania Roy  

E-Print Network (OSTI)

New Horizons for Spatial Data Quality Research Suzie Larrivée, Yvan Bédard, Marc Gervais & Tania@ulaval.ca Abstract Producing and using spatial data as well as web services has reached the level of mass formal data quality endorsments in a scenario where spatial data have become a commodity. Keywords

13

Gabon: World Oil Report 1991  

SciTech Connect

This paper reports on Gabon's largest oil field, Rabi Kounga, and a flurry of smaller reservoirs which have boosted production to 300,000 bopd. Regional geology is so complex that it generates a large discovery only once every twenty years, and operators come and go due to low discovery ratios, following market ups and downs. A hard core four remain: Elf first, Shell, British Gas, which bought Tenneco, and Amoco. Shell's Rabi Kounga discovery, which stretches from shore to shelf, boosted exploration and renewed interest for onshore licenses. The low discovery rate, however, reflects the complexity of Gabonese basins.

Not Available

1991-08-01T23:59:59.000Z

14

Architecture of turbidite sandstone bodies in a rift-lake setting, Gabon Basin, offshore Gabon  

Science Journals Connector (OSTI)

The Lower Cretaceous Lucina Formation, part of the lacustrine syn-rift fill of the Gabon Basin, contains both channelized and non-channelized...c. 200 m.

R. D. A. Smith

1995-01-01T23:59:59.000Z

15

La décentralisation au Gabon : bilan et perspectives.  

E-Print Network (OSTI)

??Alors que l'adoption de la loi n°15/96 sur la décentralisation marquait l'ambition duGabon de mettre en place un véritable processus d'autonomisation de la gestion des… (more)

Medzo Me Ntetome, Olivia

2012-01-01T23:59:59.000Z

16

Maury County, Tennessee: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Maury County, Tennessee: Energy Resources Maury County, Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.6195242°, -87.1422895° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.6195242,"lon":-87.1422895,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

17

Rabi-Kounga field, Southern Gabon  

SciTech Connect

The Rabi-Kounga field recently discovered by Shell onshore Gabon is located at 2/sup 0/S lat. in an area of central Africa covered by dense, uninhabited, primary rain forest, 140 km south of Port Gentil, the country's economic capital. The field lies mostly within the Sette Cama Block where Shell Gabon is operator on behalf of an association in which the partners are Shell, Gabon, Elf Gabon, and SNEA. As presently defined, the Rabi-Kounga field is 12 km long and 3-4 km wide, extending northward into the Dianongo Block operated by Elf Gabon for the same association. With an expectation of 1,300 million bbl(STOIP), it appears to be the largest oil accumulation discovered in Gabon. The hydrocarbons of the Rabi-Kounga accumulation are contained within the reservoir sands of the Gamba and Dentale Formations, which form part of a rift basin of Early Cretaceous age, the Dianongo basin. The cap rocks are late Aptian evaporitic deposits (Ezanga Formation). The salt deposits and their thin underlying clastics (Gamba Formation), which unconformably overlie the continental Dentale sequence, bear evidence of the first marine influence and reflect the phase of continental separation between Africa and South America. Post-salt sediments are fully marine, corresponding to a phase of sedimentary progradation. They are represented by carbonates and clastics that were deposited on a subsiding continental margin.

Boeuf, M.G.A.

1988-01-01T23:59:59.000Z

18

Fatal Chimpanzee Attack in Loango National Park, Gabon  

E-Print Network (OSTI)

Fatal Chimpanzee Attack in Loango National Park, Gabon Christophe Boesch & Josephine Head & Nikki a fatal attack on an adult male chimpanzee at a new research site in Loango National Park, Gabon. We found or habituation. Keywords chimpanzees . fatal attack . gabon . intergroup conflict Introduction Chimpanzee social

19

Cercarial emergence pattern of Schistosoma haematobium from Libreville, Gabon  

E-Print Network (OSTI)

Cercarial emergence pattern of Schistosoma haematobium from Libreville, Gabon Rodrigue Mintsa , and Gabriel Mouahid2,3,* 1 Institut de Recherche en E´cologie Tropicale (IRET), CENAREST-Gabon, BP 13354, Libreville, Gabon 2 Universite´ Perpignan Via Domitia, E´cologie et E´volution des Interactions, UMR 5244

Boyer, Edmond

20

Gabon: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gabon: Energy Resources Gabon: Energy Resources Jump to: navigation, search Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"390px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":-1,"lon":11.75,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Antimalarial Activity of a Synthetic Endoperoxide (RBx-11160/OZ277) against Plasmodium falciparum Isolates from Gabon  

Science Journals Connector (OSTI)

...against Plasmodium falciparum Isolates from Gabon Andrea Kreidenweiss These two authors contributed...Albert Schweitzer Hospital, Lambarene, Gabon 2 Department of Parasitology, University...that we tested against field isolates from Gabon. A comparison of activities of OZ277 with...

Andrea Kreidenweiss; Benjamin Mordmüller; Sanjeev Krishna; Peter G. Kremsner

2006-04-01T23:59:59.000Z

22

Foraging Profiles of Sympatric Lowland Gorillas and Chimpanzees in the Lope Reserve, Gabon [and Discussion  

Science Journals Connector (OSTI)

...Gorillas and Chimpanzees in the Lope Reserve, Gabon [and Discussion] Caroline E. G. Tutin...gorillas and chimpanzees in the Lope Reserve, Gabon. | Comparison of the diets of sympatric...de Recherches Medicales de Franceville, Gabon. | Comparative Study Journal Article...

1991-01-01T23:59:59.000Z

23

Short-Course Artesunate Treatment of Uncomplicated Plasmodium falciparum Malaria in Gabon  

Science Journals Connector (OSTI)

...Uncomplicated Plasmodium falciparum Malaria in Gabon Steffen Borrmann 1 2 Corresponding author...Albert Schweitzer Hospital, Lambarene, Gabon 2 Department of Parasitology, Institute...malaria in children aged 4 to 15 years in Gabon to address these issues. MATERIALS AND...

Steffen Borrmann; Ayola A. Adegnika; Michel A. Missinou; Ronald K. Binder; Saadou Issifou; Andreas Schindler; Pierre-Blaise Matsiegui; Jürgen F. J. Kun; Sanjeev Krishna; Bertrand Lell; Peter G. Kremsner

2003-03-01T23:59:59.000Z

24

Cross-Species Transmission of Simian Foamy Virus to Humans in Rural Gabon, Central Africa  

Science Journals Connector (OSTI)

...of Simian Foamy Virus to Humans in Rural Gabon, Central Africa Augustin Mouinga-Ondeme...Medicales de Franceville, Franceville, Gabon b Unite des Maladies Virales Emergentes...Medicales de Franceville, Franceville, Gabon c Tulane National Primate Research Center...

Augustin Mouinga-Ondémé; Mélanie Caron; Dieudonné Nkoghé; Paul Telfer; Preston Marx; Ali Saïb; Eric Leroy; Jean-Paul Gonzalez; Antoine Gessain; Mirdad Kazanji

2011-11-09T23:59:59.000Z

25

Costus loangensis from Gabon 11 Costus loangensis, an exciting new species  

E-Print Network (OSTI)

Costus loangensis from Gabon 11 Costus loangensis, an exciting new species from Gabon, Africa from Gabon, Africa. PhytoKeys 18: 11­18. doi: 10.3897/phytokeys.18.3713 Abstract A new species of spiral ginger (Costus: Costaceae) from Gabon, Africa is described. Costus loangensis H. Maas & Maas

26

Polymorphism in two merozoite surface proteins of Plasmodium falciparum isolates from Gabon  

Science Journals Connector (OSTI)

P. falciparum polymorphism is extensive in Southeast Gabon, and most of infections are composed of...

Agnès Aubouy; Florence Migot-Nabias; Philippe Deloron

2003-05-01T23:59:59.000Z

27

Forum des Jeuns du Gabon | Open Energy Information  

Open Energy Info (EERE)

des Jeuns du Gabon des Jeuns du Gabon Jump to: navigation, search Name Forum des Jeuns du Gabon Address Libreville-GABON, derrirère la Cité Damas Place Gabon Coordinates 0.390841°, 9.453644° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":0.390841,"lon":9.453644,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

28

Fatal Chimpanzee Attack in Loango National Park, Gabon  

Science Journals Connector (OSTI)

In some populations, chimpanzees engage in lethal aggression within and between social units. We report a fatal attack on an adult male chimpanzee at a new research site in Loango National Park, Gabon. We found a...

Christophe Boesch; Josephine Head; Nikki Tagg…

2007-10-01T23:59:59.000Z

29

Public relations practice in private sector companies in Gabon  

Science Journals Connector (OSTI)

This article examines the practice of public relations in private sector companies in Gabon. Face-to-face, semi-structured interviews were conducted with the public relations practitioners employed in 15 companies chosen from the register of the companies at the Trade Ministry of Gabon. The interviews explored themes such as position of communication departments and communication practitioners in an organisation use of research, communication practitioners’ relationship with top management, gender and education of practitioners, effect of globalisation on communication practice in Gabon as well as the description of typical activities of communication practitioners. The study revealed the public relations is a developing profession in Gabon and that public relations practice in the surveyed companies displays attributes common to PR in other countries as well as some distinctive qualities shaped by the context of Gabonese history, society and culture.

Anna Oksiutycz; Malory Pambault Enombo

2011-01-01T23:59:59.000Z

30

Gouvernance des ressources forestières au gabon : acteurs et enjeux.  

E-Print Network (OSTI)

??Couvert à plus de 80% de forêt tropicale, et dans le contexte du spectre de l'épuisement du pétrole, le Gabon est confronté au défi d'assurer… (more)

Mouloungui, Armel

2014-01-01T23:59:59.000Z

31

Observations onSchistosoma intercalatum in south-east gabon  

Science Journals Connector (OSTI)

Observations were made in the field and laboratory to determine the strain characteristics ofSchistosoma intercalatum in south-east Gabon. For an isolate from Franceville, data...S. intercalatum as known from sou...

D. S. Brown; C. Sarfati; V. R. Southgate; G. C. Ross…

1984-01-01T23:59:59.000Z

32

Gouvernance des ressources forestières au gabon : acteurs et enjeux.  

E-Print Network (OSTI)

??Couvert à plus de 80% de forêt tropicale, et dans le contexte du spectre de l’épuisement du pétrole, le Gabon est confronté au défi d’assurer… (more)

Mouloungui, Armel

2014-01-01T23:59:59.000Z

33

Complex tool sets for honey extraction among chimpanzees in Loango National Park, Gabon  

E-Print Network (OSTI)

Complex tool sets for honey extraction among chimpanzees in Loango National Park, Gabon Christophe. However, new observations on complex tool use by the chimpanzees of Loango National Park, Gabon, expand

34

Sub-microscopic gametocyte carriage in febrile children living in different areas of Gabon  

Science Journals Connector (OSTI)

Considering malaria prevalence declines in parts of sub-Saharan Africa, such as Gabon, identification of the human infectious reservoir is ... among febrile patients in two different areas of Gabon.

Denise Patricia Mawili-Mboumba; Rosalie Nikiéma…

2013-10-01T23:59:59.000Z

35

First serological evidence of West Nile virus in human rural populations of Gabon  

Science Journals Connector (OSTI)

To investigate West Nile virus (WNV) circulation in rural populations in Gabon, we undertook a large serological survey focusing ... findings strongly suggest that WNV is widespread in Gabon. The difference in WN...

Xavier Pourrut; Dieudonné Nkoghé; Janusz Paweska; Eric Leroy

2010-06-01T23:59:59.000Z

36

projet conjoint parrain par la Fondation Shell et Shell Gabon, des chercheurs de l'Institution  

E-Print Network (OSTI)

projet conjoint parrainé par la Fondation Shell et Shell Gabon, des chercheurs de l champ pétrolifère de Rabi dans le Complexe d'Aires Protégées de Gamba, au Gabon. Le Gabon se trouve sur divers endroits du champ pétrolifère de Rabi, dans le com- plexe de Gamba, au Gabon. L'effort d

Baker, Robert J.

37

L'ESSAIMAGE CHEZ LES HYPOTRIGONES AU GABON DYNAMIQUE DE QUELQUES POPULATIONS  

E-Print Network (OSTI)

L'ESSAIMAGE CHEZ LES HYPOTRIGONES AU GABON DYNAMIQUE DE QUELQUES POPULATIONS Das Schwärmen bei den YOUNG COLONIES The observations have been made in Gabon between 1963 and 1975. Thanks to the knowledge effectuées au Gabon entre 1963 et 1975. Grâce à la connaissance de divers paramètres caractéristiques de

Boyer, Edmond

38

DEMOCRATIE ET ORGANISATION DES PARTIS POLITIQUES AU GABON Steeve NZEGHO DIEKO1  

E-Print Network (OSTI)

1 DEMOCRATIE ET ORGANISATION DES PARTIS POLITIQUES AU GABON Steeve NZEGHO DIEKO1 Résumé : Pour comprendre la fonction de structuration de la vie politique qu'assument les partis politiques au Gabon, il sert-il au Gabon? Pour répondre à ces questions, nous avons commis une enquête d'opinions en élaborant

Boyer, Edmond

39

Phylogeography, Risk Factors and Genetic History of Hepatitis C Virus in Gabon, Central Africa  

E-Print Network (OSTI)

Phylogeography, Risk Factors and Genetic History of Hepatitis C Virus in Gabon, Central Africa Me´dicales de Franceville, Franceville, Gabon, 2 Centre Pasteur du Cameroun, Re´seau International, Gabon, 5 Institut Pasteur de Bangui, Re´seau International des Instituts Pasteur, Bangui, Central

Paris-Sud XI, Université de

40

Efficacy of intramuscular amopyroquin for treatment of Plasmodium falciparum malaria in the Gabon Republic.  

Science Journals Connector (OSTI)

...of Plasmodium falciparum malaria in the Gabon Republic. C Gaudebout E Pussard F Clavier...152 patients (children and adults) in Gabon with Plasmodium falciparum malaria. All...of Plasmodium falciparum malaria in the Gabon Republic. | The efficacy of a 12-mg...

C Gaudebout; E Pussard; F Clavier; D Gueret; J Le Bras; O Brandicourt; F Verdier

1993-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

In Vitro Activity of Mirincamycin (U24729A) against Plasmodium falciparum Isolates from Gabon  

Science Journals Connector (OSTI)

...against Plasmodium falciparum Isolates from Gabon Published ahead of print on 19 October...Albert Schweitzer Hospital, Lambarene, Gabon 3 Maldevco LTT, 1603 Evanston Ave...Plasmodium falciparum clinical isolates from Gabon. Growth was determined by HRP2 enzyme-linked...

Jana Held; Richard Westerman; Peter G. Kremsner; Benjamin Mordmüller

2009-10-19T23:59:59.000Z

42

Apistan® en plastique plein (PVC) avec 800 mg de fluvalinate, et le Gabon PF 90,  

E-Print Network (OSTI)

Apistan® en plastique plein (PVC) avec 800 mg de fluvalinate, et le Gabon PF 90, consistant en une plaque d'arr�t Gabon, recouverte d'une couche de caoutchouc thermoplastique avec 90 mg de bandes Gabon PF 90 (n = 4). Lors de l'analyse spectroscopique des coupes transversales et longitudinales

Paris-Sud XI, Université de

43

DEMANDE D'AUTORISATION DE RECHERCHE SUR LE TERRITOIRE DU GABON  

E-Print Network (OSTI)

DEMANDE D'AUTORISATION DE RECHERCHE SUR LE TERRITOIRE DU GABON "ORIGINE DES SIGNAUX DE COMMUNICATION ANIMAL: communication électrique entre des poissons mormyridés du Gabon" Dr. Carl D. Hopkins, Ph Agronomiques et Forestières B.P. 2246 Libreville/Gabon #12;Demande d'Autorisation de Recherche PARTIE 1: EQUIPE

Hopkins, Carl D.

44

Floating oil production unit slated in small field off Gabon  

SciTech Connect

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

Not Available

1991-10-14T23:59:59.000Z

45

L'IRD en Afrique centrale Cameroun -Centrafrique -Congo -Gabon -Guine quatoriale -R.D. Congo  

E-Print Network (OSTI)

L'IRD en Afrique centrale Cameroun - Centrafrique - Congo - Gabon - Guinée équatoriale - R.D. Congo scientifique 45 et technique » (PCST) l'Ird au Gabon : les activités de recherche 46 Partenariat avec le CIrMF 47 Les autres implications de l'IrD au Gabon 47 l'Ird en rdc : les activités de recherche 50 Projets

46

Analyse de la biodiversité végétale dans la Forêt des Abeilles, Gabon  

Science Journals Connector (OSTI)

A biodiversity analysis of the vegetation in the Forêt des Abeilles (Gabon) has been undertaken using the transects method...Paraberlinia bifoliolata (Caesalpinioideae) and Aucoumea klaineana (Burseraceae). Mean ...

K. Gesnot; K. Van Essche; J. Lejoly

1996-01-01T23:59:59.000Z

47

Tool-use by chimpanzees (Pan t. troglodytes) in the Lopé Reserve, Gabon  

Science Journals Connector (OSTI)

During a long-term study of chimpanzees in the Lopé Reserve, Gabon, tool-use to obtain insects or their...

Caroline E. G. Tutin; Rebecca Ham; Dorothea Wrogemann

1995-04-01T23:59:59.000Z

48

La gestion des risques industriels : l'exemple de l'île Mandji au Gabon.  

E-Print Network (OSTI)

??La démonstration de la « situation à risque » sur l’île Mandji au Gabon légitime l’existence des « risques-sites », des « risques-transports » et… (more)

Lila Miyagou, Gisèle

2013-01-01T23:59:59.000Z

49

Aperçu sur les groupements secondaires à Marantaceae, Zingiberaceae et Costaceae de la Forêt des Abeilles (Gabon)  

Science Journals Connector (OSTI)

Les groupements à Marantaceae, Zingiberaceae et Costaceae sont recensés en milieu naturel au Gabon dans la Forêt des Abeilles aux environs...

M. M. Dhetchuvi

1996-01-01T23:59:59.000Z

50

Tradeoffs between food abundance and predation danger in spatial usage of a stopover site by western sandpipers, Calidris mauri  

E-Print Network (OSTI)

Tradeoffs between food abundance and predation danger in spatial usage of a stopover site and predation danger in spatial usage of a stopover site by western sandpipers, Calidris mauri. Á/ Oikos 112. While foraging, animals should alter usage within or between sites to balance the benefits of feeding

51

A new calanoid copepod (Spinocalanidae) swarming at a cold seep site on the Gabon continental margin (Southeast Atlantic)  

E-Print Network (OSTI)

A new calanoid copepod (Spinocalanidae) swarming at a cold seep site on the Gabon continental Regab on the Gabon continental margin (Southeast Atlantic) at a depth of 3151-3155 m. After description Gabon (Atlantique sud-est). Des femelles, des mâles et des copépodites V mâles de Methanocalanus

Ivanenko, Viatcheslav N.

52

2.9 to 1.9 Ga paleoalterations ofArchean granitic basement of the Franceville basin (Gabon).  

E-Print Network (OSTI)

1 2.9 to 1.9 Ga paleoalterations ofArchean granitic basement of the Franceville basin (Gabon: Paleocirculation and Diagenesis in Archean basement, Franceville basin, Gabon3 4 Abstract The Archean granitoids in the Ki�n� area, Gabon, are overlained by the Paleoproterozoic sediments of the Franceville basin (2.1 Ga

Paris-Sud XI, Université de

53

D'une violence l'autre. Sorcellerie, blindage et lynchage au Gabon  

E-Print Network (OSTI)

1 D'une violence l'autre. Sorcellerie, blindage et lynchage au Gabon Julien Bonhomme1 Libreville cousin d'être dans la Rose-Croix, société secrète systématiquement associée à la sorcellerie au Gabon. 3

Paris-Sud XI, Université de

54

Gabon-Supporting Low Carbon Development and Climate Resilient Strategies in  

Open Energy Info (EERE)

Gabon-Supporting Low Carbon Development and Climate Resilient Strategies in Gabon-Supporting Low Carbon Development and Climate Resilient Strategies in Africa Jump to: navigation, search Name Gabon-Supporting Low Carbon Development and Climate Resilient Strategies in Africa Agency/Company /Organization France Agency of Development (AFD) Partner ADETEF Sector Climate Focus Area People and Policy Topics Low emission development planning, Policies/deployment programs Website http://www.afd.fr/home Program Start 2013 Program End 2015 Country Gabon Middle Africa References Low Emissions Development Strategies [1] This project focuses on four Sub-Saharan African countries and seeks to make different achievements in climate change national policies within each of those countries. This is a technical assistance program focusing on

55

Gabon-Enhancing Capacity for Low Emission Development Strategies (EC-LEDS)  

Open Energy Info (EERE)

Gabon-Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) Gabon-Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) Jump to: navigation, search Name Gabon-Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) Agency/Company /Organization United States Agency for International Development, United States Environmental Protection Agency, United States Department of Energy, United States Department of Agriculture, United States Department of State Sector Climate, Energy, Land Focus Area Buildings, Economic Development, Energy Efficiency, Forestry, Land Use Topics Co-benefits assessment, GHG inventory, Low emission development planning, -LEDS Country Gabon Middle Africa References EC-LEDS[1] Contents 1 Overview 2 Framework 3 Lessons Learned and Good Practices 4 Progress and Outcomes

56

Molecular surveillance of mutations in the cytochrome b gene of Plasmodium falciparum in Gabon and Ethiopia  

Science Journals Connector (OSTI)

The prevalence of cytochrome b point mutations possibly conferring atovaquone resistance in Plasmodium falciparum...isolates in atovaquone treatment-naïve patient cohorts from Lambaréné, Gabon and from South West...

Tamirat Gebru; Asrat Hailu; Peter G Kremsner; Jürgen FJ Kun…

2006-11-01T23:59:59.000Z

57

La sécurité et la défense du territoire du Gabon. Analyse géopolitique.  

E-Print Network (OSTI)

??La sécurité du territoire du Gabon s'organise autour des enjeux qui s'enracinent moins dans son statut ancien de "petit cendrillon d'Afrique centrale" que dans les… (more)

Meye Ndong, Serges

2013-01-01T23:59:59.000Z

58

Hepatitis C virus prevalence and genetic diversity among pregnant women in Gabon, central Africa  

Science Journals Connector (OSTI)

Hepatitis C virus (HCV) infection is a major global public health problem in both developed and developing countries. The prevalence and genetic diversity of HCV in pregnant women in Gabon, central Africa, is not...

Guy-Roger Ndong-Atome; Maria Makuwa; Richard Njouom…

2008-06-01T23:59:59.000Z

59

History and perspectives of medical research at the Albert Schweitzer Hospital in Lambaréné, Gabon  

Science Journals Connector (OSTI)

In 1913 Albert Schweitzer founded one of the first modern hospitals in Africa dedicated to the health of the local population. The Albert Schweitzer Hospital is located in Lambaréné, a small town in Gabon. In 198...

Michael Ramharter; Ayola A. Adegnika; Selidji T. Agnandji…

2007-11-01T23:59:59.000Z

60

Les réfugiés congolais au Gabon : modes de circulation et d'installation dans un espace frontalier.  

E-Print Network (OSTI)

??Le Gabon, pays d'immigration depuis la colonisation a appris à accueillir les réfugiés depuis 1968 avec l'arrivée des enfants biafrais du Nigeria. Il a ensuite… (more)

Wali Wali, Christian

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Assessment of LED fluorescence microscopy for the diagnosis of Plasmodium falciparum infections in Gabon  

Science Journals Connector (OSTI)

LedFM and conventional fluorescence microscopy (uvFM) were compared to LM in 210 samples from patients with history of fever in the last 24 hours admitted to the Albert Schweitzer Hospital in Lambaréné, Gabon.

Dominic Lenz; Peter G Kremsner; Bertrand Lell; Barbara Biallas…

2011-07-01T23:59:59.000Z

62

La pratique des échanges commerciaux dans la société précoloniale du Gabon : XVIe-[XIXe] siècles.  

E-Print Network (OSTI)

??Cette thèse porte sur la pratique des échanges et du commerce dans la société précoloniale du Gabon. L'enjeu est d'étudier cette pratique en privilégiant un… (more)

Mboyi Moukanda, Laure Cynthia

2013-01-01T23:59:59.000Z

63

Fragmented living: Behavioural ecology of primates in a forest fragment in the Lopé Reserve, Gabon  

Science Journals Connector (OSTI)

A 17-month study was made of the primates using a 9-ha “island” of forest, surrounded by savanna, in the northern part of the Lopé Reserve, Gabon. One group ofCercopithecus cephus (plus a young maleCercopithecus ...

Caroline E. G. Tutin

1999-01-01T23:59:59.000Z

64

Forest Resource Policy in Côte d’Ivoire, Cameroon and Gabon  

Science Journals Connector (OSTI)

The article analyses activities carried out over the past 15 years to contain deforestation and to phase in sustainable forestry in three West African countries:Côte d’Ivoire, Cameroon and Gabon. The article firs...

Jean-Pierre Kiekens; Yirdaw Eshetu

2001-01-01T23:59:59.000Z

65

La pratique des échanges commerciaux dans la société précoloniale du Gabon : XVIe-[XIXe] siècles.  

E-Print Network (OSTI)

??Cette thèse porte sur la pratique des échanges et du commerce dans la société précoloniale du Gabon. L’enjeu est d’étudier cette pratique en privilégiant un… (more)

Mboyi Moukanda, Laure Cynthia

2013-01-01T23:59:59.000Z

66

Étude sérologique de la toxoplasmose chez les femmes enceintes de Franceville, Gabon  

Science Journals Connector (OSTI)

La séroprévalence de la toxoplasmose a été étudiée, entre mai et décembre 2007, auprès de 839 femmes enceintes, venues en consultation dans deux hôpitaux de Franceville (Gabon). Le diagnostic sérologique a été fa...

B. Mpiga Mickoto; J.-P. Akue; U. Bisvigou…

2010-02-01T23:59:59.000Z

67

Use of tool sets by chimpanzees for multiple purposes in Moukalaba-Doudou National Park, Gabon  

Science Journals Connector (OSTI)

...We report our recent findings on the use of tool sets by chimpanzees in Moukalaba-Doudou National Park, Gabon. Direct observations and evidences left by chimpanzees...Meliponula...sp.), which may correspond to...

Ebang Ella Ghislain Wilfried; Juichi Yamagiwa

2014-10-01T23:59:59.000Z

68

Widespread 3D seismic survey covers mature field in Gabon  

SciTech Connect

The exploration potential of the Port Gentil region, characterized by some of the earliest petroleum discoveries in Gabon, continues to be of important interest today. Available seismic data are of an older vintage (1974--82), recorded with low common mid-point (CMP) fold. They are critically void of coverage through the transition zone. The geology is highly complex, characterized by salt structures and strong tectonic activity. An intensive joint exploration and reservoir definition campaign is crucial to full evaluation of this area. This article describes the 3D survey conducted during 1992 and early 1993 over a mature oil field in an around Port Gentil and incorporating elements of land, transition zone, and shallow marine data acquisition -- the 3D Mandji program.

Riley, D.; Fleming, M. (Western Geophysical, Houston, TX (United States)); Delvaux, J. (Elf Gabon, Port Gentil (Gabon))

1993-12-06T23:59:59.000Z

69

Geology and Petrophysics of the Ozouri Group, Central Gabon  

SciTech Connect

The Ozouri Group in Gabon is comprised of finely textured siliceous dolomitic and calcareous claystones, shales, limestones, dolomites, porcellanite and cherts. It was deposited during the Late Paleocene and Early Eocene on a transgressive continental margin. It is highly siliceous and organically rich, with affinities to the Miocene Monterey Formation of California. It is often fractured by deeper structural movement of the underlying Ezanga salt. Economic oil production from the Ozouri is dependent on the most effective combination of matrix (storage) and fracture (deliverability) porosity. The most efficient combination can be related to variations in the lithologic and petrophysical characteristics of the formation. Horizontal drilling techniques can be utilized to fully exploit production from the Ozouri Group.

Dunne, L.A.; Johnson, P.R.; DeSantis, S.B. [Amoco Exploration and Production Company, Houston, TX (United States)

1996-08-01T23:59:59.000Z

70

No Evidence for Transmission of Antibiotic-Resistant Escherichia coli Strains from Humans to Wild Western Lowland Gorillas in Lopé National Park, Gabon  

Science Journals Connector (OSTI)

...Lowland Gorillas in Lope National Park, Gabon Julio Andre Benavides a b Sylvain Godreuil...France e Zoological Society of London Gabon, Regent's Park, London, United Kingdom...mammals in Lope National Park (LNP), Gabon, and we tested whether the observed pattern...

Julio Andre Benavides; Sylvain Godreuil; Rebecca Bodenham; Sandra Ratiarison; Céline Devos; Marie-Odile Petretto; Michel Raymond; Patricia Escobar-Páramo

2012-04-06T23:59:59.000Z

71

Prevalence and Molecular Diversity of Hepatitis B Virus and Hepatitis Delta Virus in Urban and Rural Populations in Northern Gabon in Central Africa  

Science Journals Connector (OSTI)

...Urban and Rural Populations in Northern Gabon in Central Africa Published ahead of print...Retrovirologie, CIRMF, BP 769 Franceville, Gabon. Phone: 241 06 63 66 61. Fax: 241 67...Franceville (CIRMF), BP 769 Franceville, Gabon 3 Service de Cooperation et dAction Culturelle...

Maria Makuwa; Armel Mintsa-Ndong; Sandrine Souquière; Dieudonné Nkoghé; Eric M. Leroy; Mirdad Kazanji

2009-05-13T23:59:59.000Z

72

New Highly Divergent rRNA Sequence among Biodiverse Genotypes of Enterocytozoon bieneusi Strains Isolated from Humans in Gabon and Cameroon  

Science Journals Connector (OSTI)

...bieneusi Strains Isolated from Humans in Gabon and Cameroon Published ahead of print on...la Sante, B.P. 4009, Libreville, Gabon 5 Unite des Maladies Infectieuses, Fondation...Jeanne Ebori, B.P. 861, Libreville, Gabon 6 Centre de Traitement Ambulatoire, Hopital...

Jacques Breton; Emmanuelle Bart-Delabesse; Sylvestre Biligui; Alessandra Carbone; Xavier Seiller; Madeleine Okome-Nkoumou; Chantal Nzamba; Maryvonne Kombila; Isabelle Accoceberry; Marc Thellier

2007-05-30T23:59:59.000Z

73

Exposure and effects of oilfield brine discharges on western sandpipers (Calidris mauri) in Nueces Bay, Texas  

SciTech Connect

Discharge of oilfield brines into fresh and estuarine waters is a common disposal practice in Texas. Petroleum crude oil (PCO) extraction from underground stores includes the removal of a significant amount of water along with the oil. Several methods may be used to separate the oil and water fractions, including tank batteries, heat separation, and skimming ponds. Disposal of the resultant produced water (oilfield brine) may be accomplished by deep-well injection or discharge to surface waters. In Texas, an estimated 766,000 barrels of oilfield brine were discharged daily into tidal waters in 1979. The maximum concentration for oil and grease in these discharges permitted by the Texas Railroad Commission is 25 ppm. Several studies have shown that oilfield brines are toxic to a wide range of marine life, yet little is known about their effects on birds and mammals. Exposure to petroleum in oilfield wastes could evoke toxicological effects in some waterbird species. Avian responses to PCO exposure are highly variable, including cessation of growth, osmoregulatory impairment, endocrine dysfunction, hemolytic anemia, altered blood chemistry, cytochrome P450 induction, reduced reproductive success, and mortality. Oilfield brine discharges may soon be the largest and most pervasive source of contaminants entering Texas estuaries. Migratory and resident birds feeding in the vicinity of discharge sites may be ingesting food items contaminated with petroleum hydrocarbons, heavy metals and salts in sufficient quantities to evoke toxicity. The present study of wintering western sandpipers (Calidris mauri) that feed and roost near discharge sites sought to examine oilfield brine exposure and effects through quantification of contaminant burdens, morphological characteristics, and cytochrome P450-associated monooxygenase activities. 20 refs., 2 tabs.

Rattner, B.A.; Melancon, M.J. [National Biological Survey, Laurel, MD (United States); Capizzi, J.L. [Texas A& M Univ., College Station, TX (United States); King, K.A. [Fish and Wildlife Service, Phoenix, AZ (United States); LeCaptain, L.J. [Fish and Wildlife Service, Spokane, WA (United States)

1995-05-01T23:59:59.000Z

74

The ins and outs of manioc diversity in Gabon, Central Africa  

E-Print Network (OSTI)

, of similar interactions between farming practices and the biological traits of the crops in their areas-level studies of traditional manioc farming systems in Gabon, central Africa. Combining ethnobotanical their own folk ecological knowledge of the crop. The patterns of folk reasoning with respect

Paris-Sud XI, Université de

75

Co-infection with Schistosoma haematobium modulates the gene expression profile of malaria infection in schoolchildren in Gabon  

Science Journals Connector (OSTI)

We undertook a prospective study of schoolchildren aged 5-16 in an area endemic for schistosomiasis near Lambaréné in Gabon. 425 children were recruited and demographic data...P. falciparum malaria infection (thi...

Katie Ewer; Julius Muller; Marielle Haks; Marguerite Massinga Loembe…

2014-09-01T23:59:59.000Z

76

Primate Diet and Biomass in Relation to Vegetation Composition and Fruiting Phenology in a Rain Forest in Gabon  

Science Journals Connector (OSTI)

To test the hypothesis that primate populations are limited by food resources, we studied the feeding ecology of three cercopithecines and one colobine in a rain forest in central Gabon. Simultaneously, we monito...

David Brugiere; Jean-Pierre Gautier…

2002-10-01T23:59:59.000Z

77

Au-delà de l’économie géographique : les nouvelles politiques d’infrastructure de transport au Gabon.  

E-Print Network (OSTI)

??Cette thèse analyse l’origine des disparités en matière de politiques de transport et d’organisation de l’activité économique au Gabon. Depuis toujours, les infrastructures de transport… (more)

Ada Allogo, Raïssa

2011-01-01T23:59:59.000Z

78

In-situ U-Pb analyses of highly altered zircon from sediments overlying the Bangombé natural fission reactor, Gabon  

Science Journals Connector (OSTI)

In-situ isotopic analyses of Pb and U in the highly altered zircons found in the clay and black shale layers above the Bangombé natural reactor, Republic of Gabon, were analyzed using a sensitive high resolution....

Makiko Kikuchi; Hiroshi Hidaka

2009-09-01T23:59:59.000Z

79

Food dropping as a food transfer mechanism among western lowland gorillas in Moukalaba-Doudou National Park, Gabon  

Science Journals Connector (OSTI)

In this paper, I describe the food-dropping behavior of western lowland gorillas observed in Moukalaba-Doudou National Park, Gabon. I collected observational data of gorillas eating...

Yuji Iwata

2014-07-01T23:59:59.000Z

80

Effets de Capsicum frutescens L. (Solanaceae) et de Zingiber officinale (Zingiberaceae) sur la croissance de Phoma sabdariffae (Phomaceae) au Gabon  

Science Journals Connector (OSTI)

Phoma sabdariffae...est l’agent responsable de la pourriture cryptogamique humide de la roselle au Gabon. La présente étude a été réalisée pour...Phoma sabdariffae.... Ces inhibitions ont été pro...

A. N. Lepengue; A. Souza; B. Ibrahim; J. F. Yala; I. Mouaragadja…

2013-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Analyse des statistiques imparfaites. Evolution démographique des pays francophones d'Afrique centrale (Cameroun, Congo, Gabon, République centrafricaine, Tchad).  

E-Print Network (OSTI)

??L'objet de ce travail est l'application de la démarche de l'analyse démographique sur des statistiques provenant de cinq pays francophones d'Afrique centrale (Cameroun, Congo, Gabon,… (more)

Makoundou, Esaï

2008-01-01T23:59:59.000Z

82

Molecular typing of PPRV strains detected during an outbreak in sheep and goats in south-eastern Gabon in 2011  

Science Journals Connector (OSTI)

Peste des petits ruminanats (PPR) is an economically important viral disease affecting goats and sheep. Four genetically distinct lineages of peste des petits ruminants virus (PPRV) have been identified. In Gabon

Gael D Maganga; Delphine Verrier; Rodrigo M Zerbinati…

2013-03-01T23:59:59.000Z

83

Bed and bed-site reuse by western lowland gorillas (Gorilla g. gorilla) in Moukalaba-Doudou National Park, Gabon  

Science Journals Connector (OSTI)

In this paper we describe bed (nest) and bed-site reuse by western lowland gorillas (Gorilla g. gorilla...) in Moukalaba-Doudou National Park, south-eastern Gabon. During an eight-month study 44 bed...

Yuji Iwata; Chieko Ando

2007-01-01T23:59:59.000Z

84

Prevalence and genetic diversity of Oesophagostomum stephanostomum in wild lowland gorillas at Moukalaba-Doudou National Park, Gabon  

Science Journals Connector (OSTI)

Using a sedimentation method, the prevalence of the nodular worm Oesophagostomum stephanostomum...(Nematoda: Strongylida) in western lowland gorillas at Moukalaba-Doudou National Park (MDNP), Gabon, was determine...

P. Makouloutou; P. P. Mbehang Nguema; S. Fujita; Y. Takenoshita…

2014-06-01T23:59:59.000Z

85

Le Gabon et la question de la societé de l'information. Approche spatiale des réseaux et des enjeux géopolitiques des technologies de la communication.  

E-Print Network (OSTI)

??I - LE CONTEXTE PREALABLE A L'ETUDE Au niveau international et au niveau des pays dont le Gabon, les années 1990 ont vu émerger une… (more)

Makanga Bala, Martial Pépin

2010-01-01T23:59:59.000Z

86

Impact of Plasmodium falciparum infection on the frequency of moderate to severe anaemia in children below 10 years of age in Gabon  

Science Journals Connector (OSTI)

Malaria is one of the main risk factors for childhood anaemia which represents a public health problem in Gabon. The risk of severe malarial anaemia increases...

Marielle K Bouyou-Akotet; Arnaud Dzeing-Ella; Eric Kendjo; Diane Etoughe…

2009-07-01T23:59:59.000Z

87

Prevalence, genetic diversity and antiretroviral drugs resistance-associated mutations among untreated HIV-1-infected pregnant women in Gabon, central Africa  

Science Journals Connector (OSTI)

To determine the prevalence of antibodies to HIV among a high-risk population in Gabon, 1098 and 2916 samples were collected from...

Mélanie Caron; Sonia Etenna Lekana-Douki; Maria Makuwa…

2012-03-01T23:59:59.000Z

88

In vitro antiplasmodial activity and cytotoxicity of nine plants traditionally used in Gabon  

Science Journals Connector (OSTI)

Aim of the study As part of a project to identify new compounds active on malarial parasites, we tested the in vitro antiplasmodial activity of nine plants traditionally used to treat malaria symptoms in Haut-Ogooué Province, South-East Gabon. Materials and methods Dichloromethane and methanolic extracts of each plant were tested for their antiplasmodial activity on two chloroquine-resistant strains of Plasmodium falciparum (FCB and W2), based on lactate dehydrogenase activity. Cytotoxicity was assessed with the MTT test on MRC-5 human diploid embryonic lung cells. Results The methanolic extract of Staudtia gabonensis and the dichloromethane extract of Adhatoda latibracteata showed high antiplasmodial activity (IC50 Gabon had interesting antiplasmodial activity in vitro. This supports continued investigations of traditional medicines in the search for new antimalarial agents. The compounds responsible for the observed antiplasmodial effects are under investigation.

Jean Bernard Lekana-Douki; Jean Bernard Bongui; Sandrine Lydie Oyegue Liabagui; Sonya Estelle Zang Edou; Rafika Zatra; Ulrich Bisvigou; Pierre Druilhe; Jacques Lebibi; Fousseyni Samba Toure Ndouo; Maryvonne Kombila

2011-01-01T23:59:59.000Z

89

Salt deformation history and postsalt structural trends, offshore southern Gabon, West Africa  

SciTech Connect

Salt deformation in offshore southern Gabon is represented by mobilization of an Aptian salt layer in reaction to Tertiary clastic progradation. Seismic mapping of salt bodies and associated faulting has resulted in increased understanding of the types and distribution of these salt bodies, their associated faulting patterns, and some aspects of their origin. Away from the Tertiary depocenter, the growth history of salt swells or pillows can be determined by examining onlapping and draping seismic reflectors. Significant Tertiary clastic progradation into the area mobilized the salt and resulted in a series of linear, deep salt walls and asymmetric, basinward-dipping salt rollers, commonly associated with significant up-to-basin faulting dominates the southern Gabon subbasin. The expansion history of associated sediments suggests that these faults expanded episodically throughout the Tertiary, continuing to present-day bathymetric fault scarps. The bias toward up-to-basin faults, to the apparent exclusion of down-to-basin expansion faults, remains enigmatic.

Liro, L.M. [Texaco Exploration and Production Technology Dept., Houston, TX (United States); Coen, R. [British Gas, Houston, TX (United States)

1996-12-31T23:59:59.000Z

90

Structure of the Gabon Margin from integrated seismic reflection and gravity data  

Science Journals Connector (OSTI)

In the South Gabon Basin, deep multi-channel seismic reflection and gravity modeling analysis have shed light on key features of the structure of the margin. The thinned continental crust beneath the Gabon Margin appears to be composed of two distinct layers, separated by a clear, strong and more or less continuous reflector running in the 7–10 s TWT window. The lower crust is characterized by a higher density, intermediate between the lower values of the upper crust and the denser values of the mantle. The lower crust is irregularly shaped and presents lateral thickness variations along the direction of thinning and along the coast. In the offshore thinned continental domain, the lower and upper crust form a 20–25 km thick body. Crustal thicknesses point to a relatively sharp and narrow transition, along a few tens of kilometers, between the unthinned and the thinned continental crust. The high density layer identified offshore Gabon presents similar characteristics in density, geometry and spatial distribution, as the underplated magmatic bodies observed along volcanic margins, e.g. along the South Atlantic Namibia Margin or the North Atlantic Vøring Margin. Although this lower crustal body could possibly represent ultra mafic serpentinized rocks or high grade metamorphic crustal rocks, we suggest that it could be composed of mafic rocks. Magmas resulting from partial melting during rifting may underplate the crust and/or be intruded in the lower crust through a system of dykes and sills. In this view, the present-day crustal thicknesses along rifted margins, characterized by magmatic underplating and/or intrusion, are not representative of the thinning that the crust experienced during rifting. Results of this study point to relatively shallow sedimentary basins along the South Gabon Margin. The deepest offshore depocenters located under the westernmost side of the continental platform appear to be associated with the deepest syn-rift basins These basins seem to extend along 20 to 40 km in the ~ NE–SW direction with a present-day average thickness of 7.3 km. Offshore Gabon, whereas the crustal thinning appears significant, the syn-rift deposit are not thick. We suggest that the area was anomalously uplifted during the rifting phase, due to an elevated thermal lithospheric gradient. The conclusions derived from our seismic and gravity analysis are consistent with the implications such a thermal anomaly would have on the tectonic evolution of a rifted margin with 1) an underplated high density lower crustal layer, 2) shallow depth syn-rift basins associated with a relatively thin crust and subsequently 3) elevated recorded subsidence rates in the initial post-rift stages.

Stéphanie Dupré; Sierd Cloetingh; Giovanni Bertotti

2011-01-01T23:59:59.000Z

91

Illite in the Oklo natural fission reactors in Gabon: Considerations for Cs containment  

SciTech Connect

The {approximately} 2 Ga old Oklo, Okelobondo and Bangombe natural reactors in the Republic of Gabon contain solid graphitic bitumens and clay minerals, both of which have effected the containment, or partial containment, of {sup 235}U and several fission products. In laboratory experiments, sorption of {sup 134}Cs by illite, and illite coated with petroleum was measured in aqueous NaCl solutions to simulate subsurface (connate) waters in sedimentary rocks. Elevated temperatures and increasing salinity of the NaCl solutions facilitated the removal of sorbed cesium from illite.

Szabo, G.; Guczi, J. [Frederic Joliot-Curie National Research Inst. for Radiobiology and Radiohygiene, Budapest (Hungary); Nagy, B. [Univ. of Arizona, Tucson, AZ (United States); Janeczek, J. [Uniwersytet Slaski, Sosnowiec (Poland); Ewing, R.C. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Earth and Planetary Sciences

1995-12-31T23:59:59.000Z

92

Serological survey of canine leptospirosis in three countries of tropical Africa: Sudan, Gabon and Ivory Coast  

Science Journals Connector (OSTI)

Abstract A cross-sectional survey was conducted to estimate the presence of leptospiral antibodies among 475 dogs from three countries of tropical Africa: Sudan (n = 62), Gabon (n = 255) and Ivory Coast (n = 158). Sixteen reference strains belonging to seven serogroups were used as antigen in the microscopic agglutination test. Overall, considering titers ?1:40, 453 samples were positive towards one or several serovars of pathogenic leptospires. Focusing on high titers, i.e. ?1:320, the seroprevalence was 40.8%. In Gabon, the seroprevalence was higher in rural areas than in an urban environment (p < 0.001). In Ivory Coast, the seroprevalence for serogroups Icterohaemorrhagiae and Canicola was not statistically different according to the vaccinal status. Predominant serogroups varied according to the countries but Grippotyphosa and Sejroë were the most common, while Icterohaemorragiae and Canicola were dominant in Sudan. In these three countries, dogs are heavily exposed to pathogenic Leptospira and humans living in the same environment are also at risk of infection.

Cédric Roqueplo; Jean-Lou Marié; Geneviève André-Fontaine; Angeli Kodjo; Bernard Davoust

2014-01-01T23:59:59.000Z

93

Morbidity and mortality of wild animals in relation to outbreaks of Ebola haemorrhagic fever in Gabon, 1994–2003  

Science Journals Connector (OSTI)

Summary Antibody to Ebola virus was found in 14 (1.2%) of 1147 human sera collected in Gabon in 1981–1997. Six seropositive subjects were bled in the northeast in 1991, more than 3 years prior to recognition of the first known outbreak of Ebola haemorrhagic fever (EHF), whilst eight came from the southwest where the disease has not been recognised. It has been reported elsewhere that 98 carcasses of wild animals were found in systematic studies in northeastern Gabon and adjoining northwestern Republic of the Congo (RoC) during five EHF epidemics in August 2001 to June 2003, with Ebola virus infection being confirmed in 14 carcasses. During the present opportunistic observations, reports were investigated of a further 397 carcasses, mainly gorillas, chimpanzees, mandrills and bush pigs, found by rural residents in 35 incidents in Gabon and RoC during 1994–2003. Sixteen incidents had temporal and/or spatial coincidence with confirmed EHF outbreaks, and the remaining 19 appeared to represent extension of disease from such sites. There appeared to be sustained Ebola virus activity in the northeast in 1994–1999, with sequential spread from 1996 onwards, first westwards, then southerly, and then northeastwards, reaching the Gabon–RoC border in 2001. This implies that there was transmission of infection between wild mammals, but the species involved are highly susceptible and unlikely to be natural hosts of the virus.

Sally A. Lahm; Maryvonne Kombila; Robert Swanepoel; Richard F.W. Barnes

2007-01-01T23:59:59.000Z

94

Des premiers villages aux premiers européens autour de l'estuaire du Gabon : quatre millénaires d'interactions entre l'homme et son milieu.  

E-Print Network (OSTI)

??La thèse porte sur la mise au jour d'une séquence culturelle continue dans le nord-ouest du Gabon, sur le territoire de la Province de l'Estuaire.… (more)

Clist, Bernard

2005-01-01T23:59:59.000Z

95

Assessment of the effect of Schistosoma haematobium co infection on malaria parasites and immune responses in rural populations in Gabon: study protocol  

Science Journals Connector (OSTI)

This study will be conducted in two rural areas of the Moyen Ogooué province in Gabon, endemic for both Plasmodium falciparum and Schistosoma haematobium infections. Participants, 5 to 50 years old, will be enrol...

Ulysse Ateba Ngoa; Jeannot Fréjus Zinsou; Roland Fabrice Kassa Kassa…

2014-07-01T23:59:59.000Z

96

The ins and outs of manioc diversity in Gabon, Central Africa: A pluridisciplinary approach to the dynamics of genetic diversity of Manihot esculenta Crantz (Euphorbiaceae).  

E-Print Network (OSTI)

??À travers l'analyse comparative des pratiques traditionnelles de culture du manioc (Manihot esculenta Crantz) au Gabon, cette thèse explore l'origine de la diversité du manioc… (more)

Delêtre, Marc

2009-01-01T23:59:59.000Z

97

Les enjeux de la gestion du risque environnemental dans la zone de N'Toum au Gabon : cas de l'entreprise CIMGABON.  

E-Print Network (OSTI)

??La fin des années 1970 dans la commune de N'Toum au Gabon est marquée par l'implantation d'une des plus importantes entreprises du pays dont la… (more)

Bignoumba Backouyanga, Diane Marina

2013-01-01T23:59:59.000Z

98

Two new species of Monogenea of the genus Pseudodiplectanum tripathi, 1955, branchial parasites of Galeoides decadactylus, a teleostean from the coasts of Gabon  

Science Journals Connector (OSTI)

Two new monogenean species have been studied: Pseudodiplectanum megacirrus n.sp. and P. spinosum n.sp., branchial parasites of Galeoides decadactylus...(Bloch, 1795) (Teleostei, Polynemidae) from the coasts of Gabon

Claude Maillard; Jean-Claude Vala

1980-01-01T23:59:59.000Z

99

Les multinationales extractives au Gabon : le cas de la compagnie des mines d'uranium de Franceville (COMUF), 1961-2003.  

E-Print Network (OSTI)

??Au lendemain de son accession à l’indépendance le 17 août 1960, le Gabon fonde sa stratégie de développement sur l’exploitation des ressources naturelles et principalement… (more)

Ndong, Robert

2009-01-01T23:59:59.000Z

100

Lutte contre les plantes envahissantes: effet du filtrat de culture de Phoma sabdariffae Sacc. sur l’activité photosynthétique de trois plantes aquatiques au Gabon  

Science Journals Connector (OSTI)

Phoma sabdariffae Sacc. (Sphaerioidaceae) est le principal agent pathogène de la roselle (Hibiscus sabdariffa L. var. sabdariffa) au Gabon. Son action repose sur l’excrétion de...Phoma sabdariffa...

A. N. Lépengué; I. Mouaragadja; B. M’batchi; S. Ake

2013-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Stromatolites and Cyanobacterial Mats in Peritidal Evaporative Environments in the Neoproterozoic of Bas-Congo (Democratic Republic of Congo) and South Gabon  

Science Journals Connector (OSTI)

The “Schisto-Calcaire Subgroup” is a muddy predominantly subtidal shelf succession that crops in the West Congolian Belt. The approximately 300-m-thick CI (Bas-Congo) and approximately 20-m-thick SCIII (Gabon) se...

Alain R. Préat; Franck Delpomdor; Kamal Kolo…

2011-01-01T23:59:59.000Z

102

An integrated approach to evaluating the spatial distribution of the Melania Formation in southern Gabon  

SciTech Connect

Seismic is of limited use in determining the presence of the Melania Formation, which is an important source rock within the presalt section of southern Gabon, because of the problems inherent to seismic imaging beneath salt. Thus, exploration efforts were concentrated on structural modeling based on gravity and magnetic data to resolve the geometry of the presalt section. An integrated interpretation of a 94-km dip profile across the Cretaceous-Holocene passive margin sequence is presented. This interpretation used a layered model of the sedimentary section down to the last reliable horizon, derived from the seismic and well data, as constrained by the gravity modeling in order to determine the approximate depth to basement. This model was then integrated, through a series of sequential steps, into a single interpretation, which satisfied all the geological and geophysical constraints needed to explain the spatial distribution of the Melania Formation.

Bowles, E.G. (British Gas E P, Reading, Berkshire (United Kingdom)); Tedrahn, D. (British Gas E P, Houston, TX (United States)); Prieto, C.; Grow, T. (Integrated Geophysics Corp., Houston, TX (United States))

1993-09-01T23:59:59.000Z

103

Thermally insulated pipelines successfully move high-wax-content crude offshore Gabon  

SciTech Connect

Three thermally insulated pipelines have been installed at a water depth of 35 m (115 ft) in Shell Gabon's Lucina Marine field. The three lines consist of two 2-km (1.24-mile) long flowlines connecting drilling and production platforms and a 3.2 km (2 mile) long loading line connecting a production platform to a storage tanker permanently moored in the field. All three pipelines are of 10.75-in. OD with rigid polyurethane-foam insulation contained in a high-density polyethylene sleeve. The pipelines have been designed with an operating temperature of 90/degree/C. (194/degree/F.). Thermal insulation was chosen because of the Lucina crude's high wax cloud point of 55/degree/C. (131/degree/F.). Without insulation, cooling of the crude in subsea pipelines would have lead to rapid wax deposition. Details of the coating and insulation of the line and riser pipe are given. For the line pipe, a thermal-insulation system consisting of polyurethane foam (PUF) within a polyethylene (PE) sleeve pipe was chosen.

Hales, M.

1982-01-25T23:59:59.000Z

104

Frac and pack stimulation: Application and field experience from Hylia Gabon, West Africa  

SciTech Connect

This paper describes a two-step frac/gravel pack completion procedure conducted from a jack-up rig offshore Gabon in 1993 and 1994. After an in-depth, sand production study, seven wells were completed using hydraulic fracturing and cased-hole gravel packs. Because the Anguille formation spreads over a large gross interval, production screens of 50 to 100 m in length were used. Single-stage internal gravel packs (IGPs) on such large intervals were considered impossible to achieve with reasonable skin values. The frac-pack technique was an attractive way to achieve good proppant placement, considering that the formation being fractured would have a more homogeneous conductivity across the whole zone and a uniform proppant placement would be achieved in the perforations as well as in the annulus. High-efficiency frac gel using cross-linked HPG and a low damage one using HEC were compared to determine the best fluid to be used for these completions. Bottom hole pressures during treatment operations, as well as post-treatment pressure build-ups from each well, were analyzed in order to make general recommendations on this hydraulic fracture design.

Petit, G.; Leschi, P.; Dusterhoft, R.

1995-12-31T23:59:59.000Z

105

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

SciTech Connect

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

Frilet, M.; Newman, J.

1982-03-01T23:59:59.000Z

106

How to rejuvenate interest in exploring an old production area in Gabon  

SciTech Connect

The Mandji peninsula area is the oldest explored petroleum province in Gabon. The Clairette, Lopez North and South, N'Tchengue fields were discovered in the 50's in Senonian and Tertiary turbidites structured by salt domes. A total of 120 wells have led to a production of 12,5 MT (91 MMbls) oil. However, some gaps in the understanding of reservoir distribution and fluids regime appeared as production went on and could not be resolved with the available seismic data which was old (1974 to 1982) and irregular. A new 3D seismic survey was shot in 1992 (245 km2) over an area fringed with shallow water and mangrove forests, covered with savannah liable to flooding, and including several populated areas. The acquisition set-up was adjusted to every type of environment: Airgun in shallow water, explosive in uninhabited areas, and Vibroseis (TM) through the city of Port-Gentil. A carefully designed processing sequence led to consistently good quality throughout the survey, allowing a complete and detailed review of the area. In addition to building a coherent reference model, multi-disciplinary studies have already unveiled new opportunities : complex structural and stratigraphic components in the old fields together with unexpected structural closures and stratigraphic leads are revealed by the 3D interpretation. They will constitute new targets for further exploring an area at late production stage, and may help build a model for the exploration of the turbidites in the Senonian basin.

Fontaine, J.M.; Jones, M.; Ombagho, M.L. (Elf Gabon, Port-Gentil (Gabon)) (and others)

1996-01-01T23:59:59.000Z

107

How to rejuvenate interest in exploring an old production area in Gabon  

SciTech Connect

The Mandji peninsula area is the oldest explored petroleum province in Gabon. The Clairette, Lopez North and South, N`Tchengue fields were discovered in the 50`s in Senonian and Tertiary turbidites structured by salt domes. A total of 120 wells have led to a production of 12,5 MT (91 MMbls) oil. However, some gaps in the understanding of reservoir distribution and fluids regime appeared as production went on and could not be resolved with the available seismic data which was old (1974 to 1982) and irregular. A new 3D seismic survey was shot in 1992 (245 km2) over an area fringed with shallow water and mangrove forests, covered with savannah liable to flooding, and including several populated areas. The acquisition set-up was adjusted to every type of environment: Airgun in shallow water, explosive in uninhabited areas, and Vibroseis (TM) through the city of Port-Gentil. A carefully designed processing sequence led to consistently good quality throughout the survey, allowing a complete and detailed review of the area. In addition to building a coherent reference model, multi-disciplinary studies have already unveiled new opportunities : complex structural and stratigraphic components in the old fields together with unexpected structural closures and stratigraphic leads are revealed by the 3D interpretation. They will constitute new targets for further exploring an area at late production stage, and may help build a model for the exploration of the turbidites in the Senonian basin.

Fontaine, J.M.; Jones, M.; Ombagho, M.L. [Elf Gabon, Port-Gentil (Gabon)] [and others

1996-12-31T23:59:59.000Z

108

Mechanisms of lead release from uraninite in the natural fission reactors in Gabon  

SciTech Connect

Twenty-four samples of uranium ore from the natural fission reactors in Gabon were studied by detailed electron microprobe analysis and backscattered electron imaging in order to determine the behavior of radiogenic Pb and fissiongenic nuclides. Lead content in uraninite varies from 19 wt% PbO in relicts of pristine uraninite, which were found only in reactor zone 10, to less than 5 wt% in altered uraninites. Different mechanisms of Pb loss from uraninite prevailed in different reactor zones and included leaching, grain boundary diffusion, exsolution via continuous precipitation, and volume diffusion. As a result of these processes, Pb content in uraninites from all the reactor zones, except for reactor zone 10, are similar and vary around a mean value of 5.2 wt% PbO. All of these processes were thermally activated and episodic. The predominance of any single mechanism in a particular reactor zone was controlled by the accessibility of solutions to the uranium ore. The thermal event which caused Pb mobilization in the deposits resulted from regional igneous activity in the Franceville Basin more than 1100 Ma after the reactors sustained spontaneous fission reactions. Reducing conditions prevented the long distance migration of Pb, as well as of fissiongenic Mo and Ru.

Janeczek, J. [Silesian Univ., Sosnowiec (Poland)] [Silesian Univ., Sosnowiec (Poland); Ewing, R.C. [Univ. of New Mexico, Albuquerque, NM (United States)] [Univ. of New Mexico, Albuquerque, NM (United States)

1995-05-01T23:59:59.000Z

109

Screening of antioxidant activities of polysaccharides extracts from endemic plants in Gabon  

Science Journals Connector (OSTI)

Abstract The usage of plants as food, cosmetics or medicinal products is common throughout the world, particularly in the traditional medicines of Africa, Asia, and South America. Despite this long-standing use, many properties of plant constituents, including their capacity to inactivate reactive oxygen species, remain unknown today. In this context, polysaccharides were isolated from barks, leaves or stems of endemic plants of Gabon by sequential extractions of crude cell walls with oxalate and KOH. Analysis of fractions indicated that pectic extracts are mainly composed of HG and RG-I in various proportions whereas hemicellulose fractions are composed of both XXXG-type xyloglucans and (1,4)-xylans substituted by 4-O-Me GlcUA residues. Antioxidant activities of these plant extracts were evaluated by monitoring their free radical scavenging activity of 2-2-diphenyl, 1-picrylhydrazyl, iron reducing capacity and metal chelating activity. Pectin from four extracts presented antioxidant activity in the DPPH assay compared to ascorbic acid (AA). These extracts also exhibited high ferric iron reducing powers compared to AA but low ferrous ion-chelating properties compared to EDTA. These activities were concentration-dependent. In contrast, commercially available pectins, xyloglucan and arabinoxylan were found to be inactive in both assays. The free scavenging activity of these molecules disappeared after enzymatic digestion and saponification, whereas the iron reducing power partially remains after these two treatments. The fact that all pectins and hemicelluloses from the three plants reacted differently suggests that specific structural motifs are involved for generation of antioxidant activity

Line Edwige Mengome; Aline Voxeur; Jean Paul Akue; Patrice Lerouge

2014-01-01T23:59:59.000Z

110

U-Pb single zircon grain dating of Present fluvial and Cenozoic aeolian sediments from Gabon: consequences on sediment provenance, reworking, and  

E-Print Network (OSTI)

U-Pb single zircon grain dating of Present fluvial and Cenozoic aeolian sediments from Gabon: consequences on sediment provenance, reworking, and erosion processes on the equatorial West African margin margin, Denudation, Cenozoic, Sedimentary sources, Detrital sediment. Abstract. ­ U-Pb ages obtained from

Demouchy, Sylvie

111

A thirteen-year analysis of Plasmodium falciparum populations reveals high conservation of the mutant pfcrt haplotype despite the withdrawal of chloroquine from national treatment guidelines in Gabon  

Science Journals Connector (OSTI)

In Gabon, CQ use was officially discontinued in 2003...pfcrt allele 76T was repeatedly measured to be 100% [13–15]. The goal of this study is to investigate if this change was associated with a return of the wild...

Matthias Frank; Nicola Lehners; Pembe I Mayengue; Julian Gabor…

2011-10-01T23:59:59.000Z

112

Transport of terrestrial organic matter in the Ogooué deep sea turbidite system (Gabon)  

Science Journals Connector (OSTI)

In order to define the nature and distribution of the organic matter (OM) preserved in the modern Ogooué deep sea turbidite system (Gabon), bulk geochemical techniques (Rock-Eval pyrolysis, elemental and isotopic analyses) and palynofacies were applied to three piston cores collected in the Cape Lopez Canyon and lobe and on the continental slope, north of the canyon. The hemipelagic sedimentation in the study area is characterized by high accumulations of well-preserved OM (?2–3 wt. TOC %). Bulk geochemical and palynofacies analysis indicate both a marine and terrestrial origin of the OM. Contribution of the marine source is higher on the slope than in the canyon and lobe. OM accumulation in turbidites is strongly controlled by the combined influence of the Cape Lopez Canyon and littoral drift. In the canyon and lobe, turbidites show generally low TOC content (0.5 wt. %) and OM is oxidized. The origin of the OM is interpreted as both marine and terrestrial, with a higher contribution of continental source versus marine source. The low TOC contents are due to the large siliciclastic fraction transported by the littoral drift and diverted in the Cape Lopez Canyon during high energy processes (e.g. storms) which tend to dilute the OM in the turbidites. Transport by long-shore currents and/or turbiditic flows leads to oxidation of the OM. On the continental slope located north of the Cape Lopez Canyon, large amounts of OM are deposited in turbidites (up to 14 wt. %). The OM is predominantly derived from terrestrial land plants and has not been subjected to intense oxidation. These deposits are characterized by high hydrocarbon potential (up to 27 kg HC/t rock), indicating a good potential as gas-prone source rock. Because Cape Lopez Canyon captures a significant part of the sediment transported by the littoral drift, the siliciclastic sedimentary flux is reduced north of the canyon; OM is thus concentrated in the turbidites. Variation in TOC content within turbidite laminae can be explained by the burst and sweep deposition process affecting the boundary layer of the turbulent flow. This study confirms that gravity flows play a preponderant role in the accumulation and preservation of OM in deep water and that deep sea turbidite systems could be regarded as an environment where organic sedimentation occurs.

Laurie Biscara; Thierry Mulder; Philippe Martinez; François Baudin; Henri Etcheber; Jean-Marie Jouanneau; Thierry Garlan

2011-01-01T23:59:59.000Z

113

Assessment of Mangrove Carbon Stocks in Cameroon, Gabon, the Republic of Congo (RoC) and the Democratic Republic of Congo (DRC) Including their Potential for Reducing Emissions from Deforestation and Forest Degradation (REDD+)  

Science Journals Connector (OSTI)

We present results of the field assessment using a total of fifteen 0.1 ha mangrove permanent sample plots (PSPs) in four selected countries in Central Africa, including: Cameroon, Gabon, Republic of Congo and De...

Gordon N. Ajonina; James Kairo…

2014-01-01T23:59:59.000Z

114

Description of Anopheles gabonensis, a new species potentially involved in rodent malaria transmission in Gabon, Central Africa  

Science Journals Connector (OSTI)

Abstract The genus Anopheles includes mosquito vectors of human malaria and arboviruses. In sub-Saharan Africa, the anopheline fauna is rich of nearly 150 species, few of which are anthropophilic and capable of transmitting pathogens to humans. Some of the remaining species are found in forests far from human environments and are vectors of wildlife pathogens. The diversity and the biology of these species have yet to be fully described. As a contribution to furthering knowledge of sylvan Anophelinae, using morphological and molecular tools we describe a new Anopheles species collected in Gabon (Central Africa), which we have named Anopheles gabonensis n. sp. We also molecularly screened this species to detect infections by Plasmodium parasites. The results showed the species to have been infected by Plasmodium vinckei, a rodent parasite. We discuss the role of An. gabonensis n. sp. in the transmission of P. vinckei in the rainforest areas of Central Africa and its potential to transfer pathogens to humans.

Nil Rahola; Boris Makanga; Patrick Yangari; Davy Jiolle; Didier Fontenille; François Renaud; Benjamin Ollomo; Diego Ayala; Franck Prugnolle; Christophe Paupy

2014-01-01T23:59:59.000Z

115

Geochemistry of organic-rich black shales overlying the natural nuclear fission reactors of Oklo, Republic of Gabon  

SciTech Connect

The organic-rich black shales of the Franceville Series` FB Formation overlying the uranium ores, and natural nuclear fission reactors of Oklo, Gabon, are not notably metalliferous. Chromium, gold, silver, and barium are slightly enriched in average Oklo black shale (AOK) relative to black shale standard SDO-1. Geochemical variations among the black shale samples of the sedimentary sequence include enrichment in potassium, barium, chromium, and silver in the four lowermost samples, the presence of a bleached zone depleted in organic carbon lowermost in the sequence, and elevated rare earth element (REE) content in samples closest to the Oklo reactor zones. Hydrothermal activity has influenced the geochemistry of the black shale but is evidently not linked to reactor-driven processes. Chondrite-normalized REE patterns of Oklo black shale samples show slight enrichment in light REE and slight depletion in heavy REE, especially in the sample closest to the reactor zone. However, comparison of REE content with various petrographic facies in and near the Oklo reactors shows no apparent enrichment in fission product (intermediate) REE. With few exceptions, reactor facies all contain more REE than AOK. The chondrite-normalized REE pattern of AOK resembles that of greywacke-shale turbidites of Archean greenstone belts. The paucity of uranium and manganese in AOK is a curious anomaly in an area of world class uranium and manganese deposits.

Mossman, D.J. [Mount Allison Univ., Sackville, New Brunswick (Canada). Dept. of Physics, Engineering and Geoscience; Gauthier-Lafaye, F. [Centre National de la Recherche Scientifique, Strasbourg (France). Centre de Geochimie de la Surface; Nagy, B.; Rigali, M.J. [Univ. of Arizona, Tucson, AZ (United States)

1998-07-01T23:59:59.000Z

116

From detrital heritage to diagenetic transformations, the message of clay minerals contained within shales of the Palaeoproterozoic Francevillian basin (Gabon)  

Science Journals Connector (OSTI)

Abstract Unmetamorphosed and undeformed marine siliciclastics rocks of the FB, FC and FD of the Francevillian series (Gabon) were deposited in an epicontinental basin. Clay minerals found in black shale, siltstone and sandstone are dominantly illite and chlorite except in two levels of the FB formation, which contain smectite-rich randomly ordered mixed layers. Their survival in a 2.1 Ga old sedimentary series is not related to the abundance of organic matter (total organic carbon or TOC), nor redox conditions at the time of deposition as indicated by the Fe speciation (FeHR/FeT and FePy/FeHR ratios). Rather it results from an incomplete illitization reaction that reflects potassium deficiency. The K2O/Al2O3 ratio of shale, siltstone and sandstone vary along the series, and appear to conserve the signature of the original chemical composition of the rocks. K-feldspars which are present in the FC and FD formations are missing in the FB formation. Consequently, the smectite layers do not appear to be inherited from a detrital input in the basin but must be considered as representative of an intermediate stage of the illitization reaction reached during diagenesis.

Lauriss Ngombi-Pemba; Abderrazak El Albani; Alain Meunier; Olivier Grauby; François Gauthier-Lafaye

2014-01-01T23:59:59.000Z

117

Introduction of postabortion contraception, prioritizing long-acting reversible contraceptives, in the principal maternity hospital of Gabon  

Science Journals Connector (OSTI)

Abstract A prospective, descriptive, analytic study was conducted at the Centre Hospitalier de Libreville in Gabon between February and September 2013 to evaluate acceptance of long-acting reversible contraceptives (LARC) and depot-medroxyprogesterone acetate (DMPA) following abortion. Women received counseling on the combined oral pill, DMPA, copper intrauterine devices (IUDs), and implants. The association between sociodemographic and clinical characteristics, knowledge of contraceptives, and acceptance was analyzed. Of the 383 women admitted with abortion complications, 206 (53.7%) knew of no systemic contraceptives. The best-known method was the oral pill (42.0%). Only 14 women (3.6%) knew of a LARC method (IUD or implants) and only 2 (0.5%) said the injectable was their best-known method. Over 90% accepted a modern contraceptive method after abortion. Two-thirds (66.8%) chose the pill, 14.6% DMPA, and 9.3% a LARC method. Only 9.1% of the women refused to initiate use of any method.

Sosthène Mayi-Tsonga; Pamphile Assoumou Obiang; Ulysse Minkobame; Doris Ngouafo; Nathalie Ambounda; Maria Helena de Souza

2014-01-01T23:59:59.000Z

118

Nd-isotope evidence for the distal provenance of the historical (c. <3000 BP) lateritic surface cover underlying the Equatorial forest in Gabon (Western Africa)  

Science Journals Connector (OSTI)

Abstract Surficial formations in Gabon, as well as in other places of western Central Africa include a ubiquitous, homogeneous and 1–3 m-thick clayey to sandy lateritic surface cover known as the ‘Cover Horizon’. From 14C radiometric dating it has been concluded that the emplacement of this unit was correlative with a major environmental crisis which affected Central Africa c. 3000–2000 years ago. 10Be and Nd-isotopic analyses have been performed to provide new constraints on the age and origin of this layer. Six samples from two depth profiles investigated for 10Be exhibit an almost constant concentration consistent with a very recent deposition age. Nd-isotopic analyses performed on the silt to clay fraction of eleven samples from widely spaced locations over Gabon attest for mildly radiogenic signatures (?Nd = ?23 to ?17) in ten of them, and a slightly radiogenic signature (?Nd = ?9) in one sample. TDM model ages range from 1.6 to 2.6 Ga, and a perfect discrimination is observed between the Nd-isotopic signature of the Cover Horizon and that of the underlying Congo Craton. This makes an aeolian origin as the most probable for the Cover Horizon. The average ?Nd (c. ?20) is however rather unusual for aeolian sediments or aerosols. A possible source of particles is therefore tested by considering the present-day atmospheric flux over Gabon and adjacent regions. Combined atmospheric modeling and Nd-isotopes leads to the conclusion that the fine fraction of the Cover Horizon could have originated from the northern part of the Namib desert.

D. Thiéblemont; C. Guerrot; Ph. Négrel; R. Braucher; D.L. Bourlès; R. Thiéblemont

2014-01-01T23:59:59.000Z

119

Fission product retention in newly discovered organic-rich natural fission reactors at Oklo and Bangombe, Gabon  

SciTech Connect

The discovery of naturally occurring fission reactors in the rock strata of the Paleoproterozoic Francevillian Basin in the Republic of Gabon in equatorial West Africa led to several programs to define migration and/or retention of uranium and fissiogenic isotopes from/in the natural reactor zones. Although much understanding has been gained, new insight is needed regarding the chemical and physical parameters that control movement and retention of fission products over almost two billion years from/in the natural reactors. Seventeen known natural fission reactors sustained criticality for 0.1 to 1 million years in hydrothermally altered sedimentary rocks 1968 +/- 50 million years ago. These natural nuclear reactors attained criticality because of high concentrations of uranium in small pockets in uranium ores, the lack of neutron poisons, and because at the time they reached criticality, the abundance of [sup 235]U was five times greater than it is today. Water acted as a moderator, and temperature in the natural reactors was between 160 and 360[degrees]C. Both the uranium-rich pockets and the uranium ore bodies in which these pockets are located were formed when aqueous solutions moving through highly fractured zones in the Francevillian sedimentary rocks met organic-rich sediments. This resulted in the reduction of U(VI) in the dissolved uranyl ions to U(IV), causing the precipitation of pitchblende and uraninite. It has been proposed that between 2.2 and 1.9 billion years ago, the earth's atmosphere experienced a remarkable temporary rise in O[sub 2] content; this event may account for the uranium-bearing, oxidizing aqueous solutions in the Francevillian rocks.

Nagy, B.; Rigali, M.J. (Univ. of Arizona, Tucson (United States))

1993-01-01T23:59:59.000Z

120

Organic matter accumulation in a thick, lacustrine, Lower Cretaceous sedimentary sequence in Gabon: Facies and maturity variations  

SciTech Connect

A total of about forty core samples representing an almost two kilometer thick, lacustrine sedimentary sequence of Neocomian age in the south Gabon basin was analysed for its hydrocarbon generation potential, maturity and further organic matter characteristics. Organic carbon concentrations are variable and not particularly high (0.4-5%), but the organic matter is hydrogen-rich. This hydrogen-richness finds its expression in high hydrogen indices (about 600 to 700 mg hc/g TOC) which decrease with increasing maturation. According to pyrolysis experiments, hydrocarbon generation from the immature sediments is predicted to begin only at temperatures greater than 100{degrees}C and reaches a maximum only at temperatures greater than 150{degrees}C, because the organic material possesses a very high thermal stability. Such a high thermal stability was already established for lacustrine organic matter from some other deposits (e.g. Green River oil shales) and is certainly an important factor for the evaluation of hydrocarbon potentials in lacustrine basins. The maturity of the organic matter changes from immature to mature with increasing depth. Peak oil generation stage was almost reached by the deepest samples as indicated by a variety of optical and geochemical parameters. Generated petroleum should be wax-rich and rather poor in gas, except if oil to gas cracking occurs within the source rocks. With respect to molecular geochemistry, several interesting pecularities were found. As an example, variable distributions of several unknown tetracyclic terpanes (molecular formula C{sub 24}H{sub 42}) were detected in the samples of lower maturity. Two series of terpane pseudohomologues occur in the more mature samples, one of which is assumed to consist of diahopanes, the other yet remaining unknown. These compounds seem to be widely distributed in lacustrine sediments of higher maturity, thus possibly representing maturity and/or facies indicators.

Ralf, L.; Wilkes, H. [Forschungszentrum Juelich (Germany)

1995-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

U-shaped slope gully systems and sediment waves on the passive margin of Gabon (West Africa)  

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Abstract 3-D seismic reflection data has enabled the documentation of a system of remarkable modern and buried u-shaped gullies which intimately co-exist with upslope migrating sediment waves along 80 km of the Gabon continental slope. The modern gullies occur on a silty mud-dominated slope in water depths of 150–1500 m on an ~ 50 km wide slope with a gradient of 4.5° decreasing to 1.5°. The gully sets persist laterally for distances of at least 40 km and extend downslope for distances of up to 60 km. The gullies are u-shaped in cross-section, with a relief of 5–30 m, and widths of 50–400 m. Intriguingly, the gullies become narrower and shallower with distance down the slope, as well as increasing in number down slope. The majority of the gullies appear to be erosional but some appear to have resulted from simultaneous aggradation along inter-gully ridges and non-deposition along the adjacent gully floor. Hence, these gullies are interpreted to have formed mainly in response to spatially-variable deposition, rather than erosion. Upslope migrating sediment waves occur in close proximity to the gullies. Gullies cross fields of sediment waves and waves are observed to migrate up-slope locally within both the erosional and aggradational gullies. Evidence is lacking for any slumping or headward erosion in the headwall region of the gullies, which discounts formation by very local sediment gravity flows originating from shelf-edge collapse, as has been observed in other v-shaped gully systems. Based on our new data, and supported by theoretical studies on the mechanics of turbidity currents, we propose that the gullies and related sediment waves were formed by diffuse, sheet-like, mud-rich turbidity currents that presumably originated on the shelf. Instabilities in the turbidity currents generated a wave-shaped perturbation in a cross-flow direction leading to regularly spaced regions of faster and slower flow. For the non-aggradational and erosional gullies it is inferred that gully axes experienced flow velocities that mainly exceeded the settling velocity of the sediment in suspension, and thus no deposition occurred. In contrast, the aggradational gullies indicate lower flow velocities with sediment deposition both within the gully axes and on the gully flanks. Mixed mode gullies are also found which indicate that successive flows can experience variations in flow properties leading to interspersed erosional and depositional events.

Lidia Lonergan; Nur Huda Jamin; Christopher A.-L. Jackson; Howard D. Johnson

2013-01-01T23:59:59.000Z

122

Sedimentary dynamics and extensional structuring related to early Cretaceous rifting of Neocomian and Barremian deposits of the interior basin of Gabon  

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Recent field and subsurface data about the early Neocomian N’dombo series and the Neocomian to mid-Barremian Schistes series of the interior basin of Gabon further our understanding of the initial stages of early Cretaceous N40–60°E extensional rifting. The syn-rift series comprise fluvial–lacustrine claystones–sandstones, rare conglomerates, and carbonates. The syn-rift fill begins with braided-stream feldspathic sandstones. These are overlain first by fluvial–lacustrine deposits and then by predominantly lacustrine–palustrine claystones, which are potential petroleum source rocks. The claystones are eroded in part and are capped by the pre-Aptian angular unconformity marking the end of Cretaceous rifting in the interior basin. This change in syn-rift facies and depositional environments reflects a rise in base level in response to accelerated subsidence after the initial stage of rifting. The syn-rift deposits form two fining-upward sequences several 100–1000 m thick.

M. Mbina Mounguengui; J. Lang; M. Guiraud

2008-01-01T23:59:59.000Z

123

Patch-occupancy models indicate human activity as major determinant of forest elephant Loxodonta cyclotis seasonal distribution in an industrial corridor in Gabon  

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The importance of human activity and ecological features in influencing African forest elephant ranging behaviour was investigated in the Rabi–Ndogo corridor of the Gamba Complex of Protected Areas in southwest Gabon. Locations in a wide geographical area with a range of environmental variables were selected for patch-occupancy surveys using elephant dung to assess seasonal presence and absence of elephants. Patch-occupancy procedures allowed for covariate modelling evaluating hypotheses for both occupancy in relation to human activity and ecological features, and detection probability in relation to vegetation density. The best fitting models for old and fresh dung data sets indicate that (1) detection probability for elephant dung is negatively related to the relative density of the vegetation, and (2) human activity, such as presence and infrastructure, are more closely associated with elephant distribution patterns than are ecological features, such as the presence of wetlands and preferred fresh fruit. Our findings emphasize the sensitivity of elephants to human disturbance, in this case infrastructure development associated with gas and oil production. Patch-occupancy methodology offers a viable alternative to current transect protocols for monitoring programs with multiple covariates.

Ralph Buij; William J. McShea; Patrick Campbell; Michelle E. Lee; Francisco Dallmeier; Sylvain Guimondou; Loïc Mackaga; Nicaise Guisseougou; Serge Mboumba; James E. Hines; James D. Nichols; Alfonso Alonso

2007-01-01T23:59:59.000Z

124

Transition from alkaline to calc-alkaline volcanism during evolution of the Paleoproterozoic Francevillian basin of eastern Gabon (Western Central Africa)  

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Abstract We report new geochemical data for the volcanic and subvolcanic rocks associated with the evolution of the Francevillian basin of eastern Gabon during Paleoproterozoic times (c. 2.1–2 Ga). Filling of this basin has proceeded through four main sedimentary or volcano-sedimentary episodes, namely FA, FB, FC and FD. Volcanism started during the FB episode being present only in the northern part of the basin (Okondja sub-basin). This volcanism is ultramafic to trachytic in composition and displays a rather constant alkaline geochemical signature. This signature is typical of a within-plate environment, consistent with the rift-setting generally postulated for the Francevillian basin during the FB period. Following FB, the FC unit is 10–20 m-thick silicic horizon (jasper) attesting for a massive input of silica in the basin. Following FC, the FD unit is a c. 200–400 m-thick volcano-sedimentary sequence including felsic tuffs and epiclastic rocks. The geochemical signatures of these rocks are totally distinct from those of the FB alkaline lavas. High Th/Ta and La/Ta ratios attest for a calc-alkaline signature and slight fractionation between heavy rare-earth suggests melting at a rather low pressure. Such characteristics are comparable to those of felsic lavas associated with the Taupo zone of New Zealand, a modern ensialic back-arc basin. Following FD, the FE detrital unit is defined only in the Okondja region, probably associated with a late-stage collapse of the northern part of the basin. It is suggested that the alkaline to calc-alkaline volcanic transition reflects the evolution of the Francevillian basin from a diverging to a converging setting, in response to the onset of converging movements in the Eburnean Belt of Central Africa.

Denis Thiéblemont; Pascal Bouton; Alain Préat; Jean-Christian Goujou; Monique Tegyey; Francis Weber; Michel Ebang Obiang; Jean Louis Joron; Michel Treuil

2014-01-01T23:59:59.000Z

125

Gabon black population data on the ten short tandem repeat loci D3S1358, VWA, D16S539, D2S1338, D8S1179, D21S11, D18S51, D19S433, TH01 and FGA  

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...Allele frequencies for ten short tandem repeat (STR) loci D3S1358, VWA, D16S539, D2S1338, D8S1179, D21S11, D18S51, D19S433, TH01 and FGA were determined in a Black African sample population from Gabon. All loc...

M. Steinlechner; K. Schmidt; H. G. Kraft…

2002-06-01T23:59:59.000Z

126

Performances of Malaria P.f/Pan Rapid Test Device Acon® (Pf HRP2/pan aldolase) and Malaria Pf Rapid Test Device Acon® (Pf HRP2) for the diagnosis of malaria in adults and children living in Gabon, Central Africa  

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Abstract The Malaria Pf Rapid Test Device Acon® (Acon Labs) and the pan HRP2/aldolase RDT, Malaria P.f/Pan Rapid Test Device Acon® (Acon Labs), performances were evaluated for malaria species diagnosis in 592 febrile patients living in Gabon using microscopy as gold standard. Sensitivities were equal or above 96.0% for Plasmodium falciparum detection, of 62.5% for non–P. falciparum malaria species detection and higher in younger children (100%). Negative predictive values were greater than 97.0%. Acon®HRP2 had a higher specificity (96.6%) and lower false-positive (FP) rate (9.3%) compared to Acon®Pf/Pan, which had a specificity of 87.3% and a FP rate of 27.1% (P < 0.01). Overall, 32.5% of all Acon® Pf/Pan tests resulted in a “faint band” with only 2 resulted from samples with a parasitemia below 100 p/?L. The accuracy of Acon®HRP2 RDT for the diagnosis of P. falciparum infection is confirmed. However, the high FP rate observed with Acon®Pf/Pan is a limitation for its use.

Marielle Karine Bouyou Akotet; Denise Patricia Mawili-Mboumba; Blondel Madoungou; Maryvonne Kombila

2013-01-01T23:59:59.000Z

127

Natural fission reactors in the Franceville basin, Gabon: A review of the conditions and results of a {open_quotes}critical event{close_quotes} in a geologic system  

SciTech Connect

Natural nuclear fission reactors are only known in two uranium deposits in the world, the Oklo and Bangombe deposits of the Franceville basin: Gabon. Since 1982, five new reactor zones have been discovered in these deposits and studied since 1989 in a cooperative European program. New geological, mineralogical, and geochemical studies have been carried out in order to understand the behavior of the actinides and fission products which have been stored in a geological environment for more than 2.0 Ga years. The Franceville basin and the uranium deposits remained geologically stable over a long period of time. Therefore, the sites of Oklo and Bangombe are well preserved. For the reactors, two main periods of actinide and radionuclides migration have been observed: during the criticality, under P-T conditions of 300 bars and 400-500{degrees}C, respectively, and during a distention event which affected the Franceville basin 800 to 900 Ma ago and which was responsible for the intrusion of dolerite dikes close to the reactors. New isotopic analyses on uranium dioxides, clays, and phosphates allow us to determine their respective importance for the retention of fission products. The UO{sub 2} matrix appears to be efficient at retaining most actinides and fission products such as REEs, Y, and Zr but not the volatile fission products (Cd, Cs, Xe, and Kr) nor Rb, Sr, and Ba. Some fissiogenic elements such as Mo, Tc, Ru, Rh, Pd, and Te could have formed metallic and oxide inclusion in the UO{sub 2} matrix which are similar to those observed in artificial spent fuel. Clays and phosphate minerals also appear to have played a role in the retention of fissiogenic REEs and also of Pu. 82 refs., 21 figs., 12 tabs.

Gauthier-Lafaye, F. [CNRS, Strasbourg (France)] [CNRS, Strasbourg (France); Holliger, P. [CEA-Cadarache, Saint-Paul-les-Durance (France)] [CEA-Cadarache, Saint-Paul-les-Durance (France); Blanc, P.L. [Institut de Protection et de Surete Nucleaire, Fontenay-aux-Roses (France)] [Institut de Protection et de Surete Nucleaire, Fontenay-aux-Roses (France)

1996-12-01T23:59:59.000Z

128

Yolande MAURY University of Artois / Lille 3, GERiiCO  

E-Print Network (OSTI)

and information. It includes a general reflection on the process of knowledge creation and communication. 1 during the period 2006-2010, as part of the "Technological Research Team in education (ERTé)" Culture, culture is not static (to freeze practices leads to an essentialist view of

129

Aerial surveying of the world's largest leatherback turtle rookery: A more effective methodology for large-scale monitoring  

E-Print Network (OSTI)

-de-France 75005, France e PROTOMAC, BP 2104 Libreville, Gabon f IBONGA-ACPE, BP 178 Gamba, Gabon g CNDIO-Gabon, BP 10961 Libreville, Gabon h Agence Nationale des Parcs Nationaux, BP 546 Libreville, Gabon i Gabon Environnement, BP 2104 Libreville, Gabon j Aventures Sans Frontières, BP 7248, Gabon k WWF-Gabon, BP 9144

Exeter, University of

130

Identifying Sex Differences in Spatial Cognition in Laboratory Mice  

E-Print Network (OSTI)

Mouse By Tania Jean Bettis A dissertation submitted inby       Tania  Jean  Bettis   Doctor  of  Philosophy  in  object recognition task (Bettis and Jacobs 2009) and

Bettis, Tania

2011-01-01T23:59:59.000Z

131

The Francevillian (Lower Proterozoic) uranium ore deposits of Gabon  

Science Journals Connector (OSTI)

...Vienna, Inter- nat. Atomic Energy Agency, p. 513-520. FRANCEVILLIANUDEPOSITS...Vienna, Internat. Atomic Energy Agency,p. 307-332. Weber...geothermalenergyresources:Geothermic Spec. Issue2, v. 1, p...Vienna, Internat. Atomic Energy Agency, p. 375-395.

F. Gauthier-Lafaye; F. Weber

132

Variation et variétés morphosyntaxiques du français parlé au Gabon.  

E-Print Network (OSTI)

??La thèse consiste en une comparaison entre deux types de français parlé par des locuteurs gabonais ayant le français comme langue seconde (d'ailleurs unique langue… (more)

Italia, Magali

2011-01-01T23:59:59.000Z

133

Variation et variétés morphosyntaxiques du français parlé au Gabon.  

E-Print Network (OSTI)

??La thèse consiste en une comparaison entre deux types de français parlé par des locuteurs gabonais ayant le français comme langue seconde (d’ailleurs unique langue… (more)

Italia, Magali

2011-01-01T23:59:59.000Z

134

Prevalence of Plasmodium falciparum infection in pregnant women in Gabon  

Science Journals Connector (OSTI)

In areas where malaria is endemic, pregnancy is associated with increased susceptibility to malaria. It is generally agreed that this risk ends with delivery and decreases with the number of pregnancies. Our stud...

Marielle K Bouyou-Akotet; Denisa E Ionete-Collard…

2003-06-01T23:59:59.000Z

135

The petroleum systems of the Ogooue Delta, Offshore Gabon  

SciTech Connect

An analysis of the petroleum geology of the Ogooue Delta region reveals the presence of two independent petroleum systems. The first system appears to have been generated from a pre-Cenomanian restricted marine source. These oils are largely reservoired in Batanga Formation sandstones (Maastrichtian) and are deposited principally along the southern margin of the delta. The second system appears to have been generated from the Azile and Anguille Formations (Senonian). These Upper Cretaceous oils are reservoired principally within Anguille reservoirs. These accumulations appear geographically less restricted, but appear most concentrated within the northern portion of the delta. The geographic distribution of the two systems appears to be controlled by several factors including the distribution of the oil-prone source, the nature of migration network, and the level of thermal maturity. The pre-Cenomanian system appears to have a more effective mechanism for vertical migration than the Azile-Anguille sourced system. It is unclear as to why differences in the migration network should exist within a single delta complex. Although the two systems have different source rocks they both share one major controlling factor. In both cases the areal limit of the petroleum system is constrained by thermal maturation. The overburden associated with the delta complex provided for the appropriate levels of thermal maturation. Modeling results suggest that the pre-Cenomanian system began generating liquid hydrocarbons during the Oligocene. The Senonian system began generating hydrocarbons during the Miocene. Both systems are still actively generating hydro- carbons.

Katz, B.J.; Dawson, W.C. [EPTD, Texaco, Inc., Houston, TX (United States); Liro, L.M.; Robison, V.D.; Stone-Braker, J.D. [CED, Texaco, Inc., Bellaire, TX (United States)

1996-08-01T23:59:59.000Z

136

High Prevalence of the Amphibian Chytrid Pathogen in Gabon  

Science Journals Connector (OSTI)

Amphibian chytridiomycosis is an infectious disease caused by the fungus Batrachochytrium dendrobatidis (Bd) that is implicated in the worldwide decline and extinction of amphibians. Africa has been proposed as a...

Rayna C. Bell; Adriana V. Gata Garcia; Bryan L. Stuart; Kelly R. Zamudio

2011-03-01T23:59:59.000Z

137

B a l a n c e. The University of Montana is the  

E-Print Network (OSTI)

industry." - Renaud Bangadi "Kiki" Gabon, West Africa While growing up in Gabon, West Africa, Kiki dreamed

Bardsley, John

138

Gandara eta De la Quadra: Gernikako eta Bermeoko euskara XVIII. mendean1  

E-Print Network (OSTI)

) 1757 Gabon Canda del año de 1757. 2) 1762 Gabon Canta Guernicacoa. Hurte 1762. 3) 1764 Guernicaco Gabon

Boyer, Edmond

139

La microfinance au Gabon : l'accès des femmes au microcrédit dans le projet d'appui au développement du microcrédit au Gabon (PADMG).  

E-Print Network (OSTI)

??Ce mémoire de recherche est une étude descriptive dont le but est d'évaluer comment l'accès au microcrédit permet aux femmes de Tchibanga bénéficiaires du Programme… (more)

Kacou-Amondji, Hyacine

2011-01-01T23:59:59.000Z

140

Originally published as: Wevers, D., Metzger, S., Babweteera, F., Bieberbach, M., Boesch, C., Cameron, K., Couacy-  

E-Print Network (OSTI)

, Libreville, Gabon 17 Institut de Recherche en �cologie Tropicale, Libreville, Gabon 18 University of Stirling

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

ORIGINAL PAPER Signal variation and its morphological correlates  

E-Print Network (OSTI)

12 localities in Gabon, West-Central Africa from 1998 to 2009. We measured time, slope, and voltage-negative pre- potential, P0. Both factors varied clinally across Gabon. EODs are shorter in eastern Gabon and longer in western Gabon. Peak P0 is slightly larger in northern Gabon and smaller in southern Gabon. P0

142

ORIGINAL PAPER Signal variation and its morphological correlates  

E-Print Network (OSTI)

and electric organ discharge (EOD) signals from 553 specimens col- lected from 12 localities in Gabon, West factors varied clinally across Gabon. EODs are shorter in eastern Gabon and longer in western Gabon. Peak P0 is slightly larger in northern Gabon and smaller in southern Gabon. P0 in the EOD is due

Hopkins, Carl D.

143

Comprehensive study of proteasome inhibitors against Plasmodium falciparum laboratory strains and field isolates from Gabon  

Science Journals Connector (OSTI)

The emergence and spread of Plasmodium falciparum resistance to almost all available antimalarial drugs necessitates the search for new chemotherapeutic compounds. The ubiquitin/proteasome system plays a major ro...

Andrea Kreidenweiss; Peter G Kremsner; Benjamin Mordmüller

2008-09-01T23:59:59.000Z

144

New HTLV-1 and HTLV-2 infections in rural population, in North of Gabon, Central Africa  

Science Journals Connector (OSTI)

The emergence of Human retroviruses, in Central Africa, may occur in contact with non human primates, during hunting and butchering. Recent studies described several cases of human infections with Human T-cell Ly...

Augustin Mouinga Ondeme; Rodrigue Bikangui; Ulrick Bisvigou; Paul Ngari…

2013-10-01T23:59:59.000Z

145

Impact of polarization and incidence of the ASAR sensor on coastline mapping: example of Gabon  

Science Journals Connector (OSTI)

Coastline mapping is of great interest in many different applications. In this Letter, we analyse the effect of the polarization and the incidence angle of the new Advanced Synthetic Aperture Radar (ASAR) sensor on coastline detection. Results indicate ...

N. Baghdadi; R. Pedreros; N. Lenotre; T. Dewez; M. Paganini

2007-08-01T23:59:59.000Z

146

L'arrivée des premiers métallurgistes sur l'Ogooué, Gabon  

Science Journals Connector (OSTI)

Au Gabonca 2400–2300 BP, les dernières cultures néolithiques des savanes de la moyenne vallée de l'Ogooué, succombent face à une rapide expansion de populations porteuses de fer. Cet événement, identifié sur des ...

Richard Oslisly; Bernard Peyrot

1992-01-01T23:59:59.000Z

147

Retrospective analysis of antimicrobial resistance and bacterial spectrum of infection in Gabon, Central Africa  

Science Journals Connector (OSTI)

Physicians depend on reliable information on the local epidemiology of infection and antibiotic resistance rates to guide empiric treatment in critically ill patients. As these data are scarce for Central Africa,...

Abraham S Alabi; Lisa Frielinghaus; Harry Kaba; Katrin Kösters…

2013-10-01T23:59:59.000Z

148

Ardisia ebo sp. nov. (Myrsinaceae), a creeping forest subshrub of Cameroon and Gabon  

Science Journals Connector (OSTI)

Ardisia is a pantropical genus of about 400 species. The African species were segregated as Afrardisia Mez and revised by De Wit (1958) under this name. He recognised 16 species. Taton (1979) sho...

Martin Cheek; Martin Xanthos

2012-06-01T23:59:59.000Z

149

Role of organic matter in the Proterozoic Oklo natural fission reactors, Gabon, Africa  

SciTech Connect

Of the sixteen known Oklo and the Bangombe natural fission reactors (hydrothermally altered elastic sedimentary rocks that contain abundant uraninite and authigenic clay minerals), reactors 1 to 6 at Oklo contain only traces of organic matter, but the others are rich in organic substances. Reactors 7 to 9 are the subjects of this study. These organic-rich reactors may serve as time-tested analogues for anthropogenic nuclear-waste containment strategies. Organic matter helped to concentrate quantities of uranium sufficient to initiate the nuclear chain reactions. Liquid bitumen was generated from organic matter by hydrothermal reactions during nuclear criticality. The bitumen soon became a solid, consisting of polycyclic aromatic hydrocarbons and an intimate mixture of cryptocrystalline graphite, which enclosed and immobilized uraninite and the fission-generated isotopes entrapped in uraninite. This mechanism prevented major loss of uranium and fission products from the natural nuclear reactors for 1.2 b.y. 24 refs., 4 figs.

Nagy, B.; Rigali, M.J. [Univ. of Arizona, Tucson (United States)] [Univ. of Arizona, Tucson (United States); Gauthier-Lafaye, F. [Centre de Geochemie de la Surface, Strasbourg (France)] [Centre de Geochemie de la Surface, Strasbourg (France); Holliger, P. [Centre d`Etudes Nucleaires de Cadarache (France)] [Centre d`Etudes Nucleaires de Cadarache (France); Mossman, D.J. [Mount Allison Univ., Sackville, New Brunswick (Canada)] [Mount Allison Univ., Sackville, New Brunswick (Canada); Leventhal, J.S. [Geological Survey, Denver, CO (United States)] [Geological Survey, Denver, CO (United States)

1993-07-01T23:59:59.000Z

150

Socio-economic status is inversely related to bed net use in Gabon  

Science Journals Connector (OSTI)

Insecticide-treated bed nets (ITNs) range among the most effective measures of malaria prophylaxis, yet their implementation level in sub-Saharan Africa is still low. The goal of this study was to investigate the...

Julia N Goesch; Norbert G Schwarz; Marie-Luise Decker; Sunny Oyakhirome…

2008-04-01T23:59:59.000Z

151

Les cancers du sein au Gabon : aspects épidémiologique, diagnostique et thérapeutique  

Science Journals Connector (OSTI)

Le pronostic immédiat demeure grevé d’une forte létalité du fait du retard de diagnostic. Il nous paraît urgent de mettre en place une politique sanitaire d’information, d’éducation et de communication sur ce can...

S. Mayi-Tsonga; E. Belembaogo; J. -F. Meyé…

2009-02-01T23:59:59.000Z

152

Clinical and laboratory features of tuberculosis within a hospital population in Libreville, Gabon  

Science Journals Connector (OSTI)

Tuberculosis constitutes a substantial health problem in Africa [1], particularly in the face of the human immunodeficiency virus (HIV) co-pandemic and the increasing problem of drug-resistant Mycobacterium tuber...

D. U. Kombila; J.-B. Moussavou-Kombila; M. P. Grobusch; B. Lell

2013-06-01T23:59:59.000Z

153

Politique agricole en Afrique Subsaharienne : le Gabon vers la souveraineté alimentaire?.  

E-Print Network (OSTI)

??L’Afrique Subsaharienne avec une croissance démographique urbaine spectaculaire et une agriculture vivrière déficitaire n’a plus la capacité de nourrir la totalité de ses habitants :… (more)

Bekale B'Eyeghe, Fidèle

2010-01-01T23:59:59.000Z

154

Complicated malaria and other severe febrile illness in a pediatric ward in Libreville, Gabon  

Science Journals Connector (OSTI)

Although a substantial decline of Plasmodium falciparum...infection is observed in Africa following implementation of new control strategies, malaria is still considered as the major cause of febrile illness in h...

Marielle Karine Bouyou-Akotet; Denise Patricia Mawili-Mboumba…

2012-09-01T23:59:59.000Z

155

Mobility of uranium, thorium and lanthanides around the Bangombe natural nuclear reactor (Gabon)  

SciTech Connect

New mineralogical and isotopic studies were carried out on samples form the Bangombe natural nuclear reactor. This reactor is located at shallow depth in the weathering profile and has been subjected to severe supergene alteration. Textural evidence indicates partial dissolution of uraninite in the Bangombe ore related to precipitation of Fe-Ti oxyhydroxides and clay minerals (kaolinite and metahalloysite). As a consequence of the alteration of the uraninite, uranium and fissiogenic rare earth elements were released in the clayey border of the reactor, whereas radiogenic {sup 232}Th remained confined in the close vicinity of the core. A retention effect is also evidenced, under reducing conditions, in the black shales located above the reactor.

Bros, R. [CEA CEN Cadarache, Saint Paul-lez-Durance (France); Gauthier-Lafaye, F.; Larque, P.; Samual, J.; Stille, P. [CNRS, Strasbourg (France)

1995-12-31T23:59:59.000Z

156

Occurrence ofGlossina nashi Potts 1955 Diptera — Glossinidae in the Republic of Gabon  

Science Journals Connector (OSTI)

Glossina nashi..., a little known species of tsetse fly, inhabits the forests of central Africa. It has recently been detected in the Province of Haut Ogooué in the south-east of the Republic of

S. G. A. Leak; P. Jeannin

1984-01-01T23:59:59.000Z

157

Developing Information Technology at the Medical Research Unit of the Albert Schweitzer Hospital in Lambaréné, Gabon  

Science Journals Connector (OSTI)

Informationstechnik (IT) ist zu einem zentralen Bereich für Forschungseinrichtungen geworden, mit einem Aufgabenfeld welches von Netzwerkverwaltung, Datenverarbeitung bis hin zu Software Entwicklung reicht. Die I...

Paterne Lessihuin Dibacka; Yann Bounda; Davy Ondo Nguema…

2010-03-01T23:59:59.000Z

158

Infection naturelle des primates non humains par les spumavirus et transmission inter-espèces au Gabon.  

E-Print Network (OSTI)

??Les spumavirus (SV) sont des rétrovirus exogènes de la sous-famille des Spumavirinae appartenant à la famille des Retroviridae. L’infection naturelle chez les primates non humains… (more)

Mouinga Ondeme, Augustin Ghislain

2011-01-01T23:59:59.000Z

159

Incidence, pathogens and resistance patterns of nosocomial infections at a rural hospital in Gabon  

Science Journals Connector (OSTI)

Nosocomial infections pose substantial risk to patients receiving care in hospitals. In Africa, this problem is aggravated by inadequate infection control due to poor hygiene, resource and structural constraints,...

Micha Scherbaum; Katrin Kösters; Raymund Egid Mürbeth…

2014-03-01T23:59:59.000Z

160

Uranium redistribution under oxidizing conditions in Oklo natural reactor zone 2, Gabon  

SciTech Connect

This mineralogical study was completed to elucidate the relationships between uranium distribution and alteration products of the host rock of natural reactor zone clays just below the reactor core. Uraninite is preserved without any alteration in the reactor core. Uranium minerals are found to be present in the fractures in the reactor zone clays associated with iron-mineral veins, galena and Ti-bearing minerals. Uranium, for which the phases could not be identified, occurs in iron-mineral veins and the iron-mineral rim of pyrite grains in the reactor zone clays. Uranium is not associated with granular iron minerals occurring in the illite matrix of the reactor zone clays. The degree of crystallinity and uranium content of the three iron-bearing alteration products suggest that they formed under different conditions; the granular iron minerals, under alteration conditions where uranium was not mobilized while the iron-mineral veins and the iron-mineral rim of pyrite, under conditions in which uranium is mobilized after the formation of the granular iron minerals.

Isobe, H.; Ohnuki, T. [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan); Murakami, T. [Ehime Univ., Matsuyama, Ehime (Japan); Gauthier-Lafaye, F. [CNRS, Strasbourg (France). Centre de Geochemie de la Surface

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Increase in malaria prevalence and age of at risk population in different areas of Gabon  

Science Journals Connector (OSTI)

Following the deployment of new recommendations for malaria control according to the World Health Organization, an estimation of the real burden of the disease is needed to better identify populations at risk and...

Denise P Mawili-Mboumba; Marielle K Bouyou Akotet; Eric Kendjo…

2013-01-01T23:59:59.000Z

162

Plasmodium falciparum transmission intensity and infection rates in children in Gabon  

Science Journals Connector (OSTI)

Several factors can determine the outcome of a malarial infection. Studies on susceptibility or resistance to malarial infection can be confounded by differences in transmission. In the present study, the rel...

E. Sylla; B. Lell; J. Kun; P. Kremsner

2001-07-01T23:59:59.000Z

163

Florencite-(La) with fissiogenic REEs from a natural fission reactor at Bangombe, Gabon  

SciTech Connect

Florecite-(La) (La/Ce = 1.09) with fissiogenic REEs and florecite-(Ce) (La/Ce = 0.62) have been identified in illite from the clay mantle surrounding a natural, 2 Ga fission reactor at Bangombre and in sandstone beneath the reactor zone, respectively. Florencite-(Ce) is apparently unrelated to nuclear processes and occurs with monazite-(Ce), apatite, TiO{sub 2} (probably anatase), zircon, and illite. Grains of florencite-(Ce) contain inclusions of thorite, chalcopyrite, and galena. Florencite-(La) was found 5 cm from the {open_quotes}core{close_quotes} of the reactor and contains inclusions of galena and U-Ti-bearing phases. Secondary uraninite and coffinite have precipitated on some of the florencite grains. The chemical composition of florencite-(La) as determined by electron microprobe analysis is (La{sub 0.38}Ce{sub 0.35}Nd{sub 0.06}Sm{sub 0.01}-Ca{sub 0.03}Sr{sub 0.17})(Al{sub 2.98}Fe{sub 0.02}{sup 3+})(PO{sub 4})[PO{sub 3.80}(OH){sub 0.20}](OH){sub 6}. Secondary ion mass spectrometry revealed that between 27 and 30% of Nd and 67 and 71% of Sm in florencite-(La) is fissiogenic. The presence of fissiogenic REEs in {open_quotes}florencite{close_quotes} from the reactor zone in Bangombe and their preferential concentration in florencite relative to the bulk sample of clay demonstrate that aluminous phosphates may have played a more significant role in the fixation of fissiogenic REES released from uraninite after the sustained fission reactions than sorption onto clays. 30 refs., 3 figs., 2 tabs.

Janeczek, J. [Univ. of Silesia, Sosnowiec (Poland); Ewing, R.C. [Univ. of New Mexico, Albuquerque, NM (United States)

1996-09-01T23:59:59.000Z

164

A MAURI. 2014 Ricerche intorno alla misura delle forze elettromotrice. Nuovo potenzioazetro e nuovo modello di pila campione (Recherches relatives la  

E-Print Network (OSTI)

'auteur a cherché à mesurer les forces électro- motrices, en appliquant la méthode de Du Bois Reymond un peu- motrices au contact de solutions de concentration diverses à différentes tem- pératures, 2e note). - Loc

Boyer, Edmond

165

`Today,wedon'trecognisetheforestanymore, wedon't understandit.Theloggingcompaniesdestroytheforest...  

E-Print Network (OSTI)

of Congo (DRC, formerly Zaire), Congo, Cameroun, Gabon, the Central African Republic, Rwanda, BurundiBaka of southeastern Cameroun, Congo and Gabon (40,000 - 50,000); the Babongo of Gabon and Congo (2,000); the Ba

Manning, Sturt

166

NCEP Contributions to the WMO Severe Weather Forecasting Demonstration Project (SWFDP) and to the African Monsoon  

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wind convergences over Ethiopia, DCR, Gabon, Cameroon, CAR, and Congo-Brazzaville and the neighboring of Nigeria, Southern Chad, Cameroon, portion of Gabon, northern Congo-Brazzaville and DRC, Southern Sudan Gabon, Camer

167

14010651-6226-5013-257-124-6 AUTRES AFFECTATIONS  

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ArgentineArgentine Gabon Zimbawe Sri LankaSri Lanka BRÃ?SIL ColombieColombie Togo Inde SyrieSyrie Gabon Togo

168

Base 1 Base 2 Base 3 Base 4 PHILIPPINES  

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'IVOIRE GABON MALI REPUBLIQUE CENTRAFRICAINE THAILANDE CHINE JORDANIE MALAISIE PALESTINE SENEGAL SYRIE BOLIVIE HAITI GHANA INDIA MADAGASCAR NIGER CHAD CAMEROON CONGO IVORY COAST GABON MALI CENTRAL AFRICAN REPUBLIC

169

14010651-6226-5013-257-124-6 OTHER ALLOCATIONS  

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FRENCH POLYNESIA BOLIVIABOLIVIA Gabon Zimbawe Sri LankaSri Lanka ArgentinaArgentina ColombieColombia Togo IndiaIndia Gabon Togo Guadeloupe Zimbawe EGYPTEGYPT TUNISIATUNISIAMOROCCOMOROCCO SENEGALSENEGAL

170

Sandia National Laboratories: Enabling Energy Efficiency  

NLE Websites -- All DOE Office Websites (Extended Search)

ClimateEnabling Energy Efficiency Enabling Energy Efficiency videobanner Enabling Energy Efficiency Sp eakers: George Wang (EFRC Thrust Leader) and Tania Henry(Researcher) Date:...

171

Nome Tipo Localidade de prova ALISSON FRANCISCO KRUL INGRESSANTE CURITIBA -PR  

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DOS SANTOS INGRESSANTE CURITIBA - PR RENAN LUIZ DOS SANTOS INGRESSANTE CURITIBA - PR RICARDO BRANDT MEISTER INGRESSANTE CURITIBA - PR RODRIGO FELIX DE ALMEIDA INGRESSANTE CURITIBA - PR TANIA MIKA MIYAZAWA

Paraná, Universidade Federal do

172

Microsoft PowerPoint - 2013_2-22_Waste_Management_Symposium_...  

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

Asset Revitalization Initiative Goals, Task Force, and Deliverables Tania Smith, DOE-EM ARI Task Force Leader February 2013 ARI Mission The Asset Revitalization Initiative (ARI) is...

173

Record of Cycling Operation of the Natural Nuclear Reactor in the Oklo/Okelobondo Area in Gabon  

E-Print Network (OSTI)

of variability of the long-term fundamental physical constants [5,6] to storage of nuclear wastes in geological on how to retain nuclear wastes, including fission Xe and Kr, and prevent uncontrolled runaway chain

174

Record of Cycling Operation of the Natural Nuclear Reactor in the Oklo/Okelobondo Area in Gabon  

Science Journals Connector (OSTI)

Using selective laser extraction technique combined with sensitive ion-counting mass spectrometry, we have analyzed the isotopic structure of fission noble gases in U-free La-Ce-Sr-Ca aluminous hydroxy phosphate associated with the 2 billion yr old Oklo natural nuclear reactor. In addition to elevated abundances of fission-produced Zr, Ce, and Sr, we discovered high (up to 0.03??cm3???STP/g) concentrations of fission Xe and Kr, the largest ever observed in any natural material. The specific isotopic structure of xenon in this mineral defines a cycling operation for the reactor with 30-min active pulses separated by 2.5 h dormant periods. Thus, nature not only created conditions for self-sustained nuclear chain reactions, but also provided clues on how to retain nuclear wastes, including fission Xe and Kr, and prevent uncontrolled runaway chain reaction.

A. P. Meshik; C. M. Hohenberg; O. V. Pravdivtseva

2004-10-27T23:59:59.000Z

175

Prospective evaluation of artemether-lumefantrine for the treatment of non-falciparum and mixed-species malaria in Gabon  

Science Journals Connector (OSTI)

This study prospectively observed the efficacy of artemether-lumefantrine for the treatment of uncomplicated non-falciparum or mixed-species malaria in two routine district hospitals in the Central African countr...

Ghyslain Mombo-Ngoma; Christian Kleine; Arti Basra; Heike Würbel…

2012-07-01T23:59:59.000Z

176

Dynamique des savoirs et des savoir-faire dans un contexte pluriculturel. Étude comparative des activités littorales au Gabon.  

E-Print Network (OSTI)

??Les littoraux sont des espaces d'interfaces non seulement écologiques, mais aussi humaines. De tout temps peuplés ou traversés par des hommes de cultures et de… (more)

Sabinot, Catherine

2008-01-01T23:59:59.000Z

177

New STLV-3 strains and a divergent SIVmus strain identified in non-human primate bushmeat in Gabon  

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SIV and STLV were detected by antibodies to HIV and HTLV antigens, and PCRs were performed on samples with an HIV or/and HTLV-like or indeterminate profile. Fourteen percent of the samples cross-reacted with H...

Florian Liégeois; Vanina Boué; Fatima Mouacha; Christelle Butel…

2012-03-01T23:59:59.000Z

178

The effects of water radiolysis on local redox conditions in the Oklo, Gabon, natural fission reactors 10 and 16  

SciTech Connect

In an underground nuclear waste repository, the chemical behavior of some stored fission products and actinides depends on the redox conditions during their long-term evolution. In this respect, radiolysis is an important phenomenon which can significantly modify the local redox conditions. The Oklo natural fission zones are good examples where the effect of radiolysis can be deduced from a mineralogical and geochemical study. Zones 10 and 16 were studied because they are located at depth of 270 m in an area devoid of any recent water circulation and not subject to the effect of the lateritic alteration occurring elsewhere in this area. In zone 10, there is a marked evolution of the U-Pb-Fe-S mineralogy from the center to the periphery of the reactor zone. In the center, uraninite shows silicification and coffinitisation with the formation of galena and native lead; the PbO content of uraninite can be as much as 20 wt%. In the periphery of the reactor zone, some radiogenic lead is present as minimum (Pb{sub 3}O{sub 4}) and in Pb-bearing calcite. In the surrounding sandstones, hematite is widespread. In zone 16, the mineral paragenesis is generally comparable with that of zone 10 but with some differences. Galena is the only Pb-bearing mineral associated with uraninite crystals. The PbO content of uraninite is always <7 wt%. In the periphery of the alteration zone, barite partly replaces quartz. In the reactor zone, hematite is sometimes replaced by pyrite. In an area where the fission zone 10 is in contact with sandstones devoid of organic matter, H{sub 2}O-H{sub 2} {+-} CH{sub 4} inclusions were observed in healed microcracks in the detrital quartz grains. Based on microthermometric measurements, the salinity of the aqueous solution ranges from 0.2 to 18 wt% eq. NaCl. Raman analysis of the gas phase indicates that the hydrogen to oxygen ratio differs from an inclusion to the other. 41 refs., 15 figs., 3 tabs.

Savary, V.; Pagel, M. [CREGU and G.R. CNRS-CREGU, Vandoeuvre-les-Nancy (France)] [CREGU and G.R. CNRS-CREGU, Vandoeuvre-les-Nancy (France)

1997-11-01T23:59:59.000Z

179

Organic free radicals and micropores in solid graphitic carbonaceous matter at the Oklo natural fission reactors, Gabon  

SciTech Connect

The presence, concentration, and distribution of organic free radicals as well as their association with specific surface areas and microporosities help characterize the evolution and behavior of the Oklo carbonaceous matter. Such information is necessary in order to evaluate uranium mineralization, liquid bitumen solidification, and radio nuclide containment at Oklo. In the Oklo ore deposits and natural fission reactors carbonaceous matter is often referred to as solid graphitic bitumen. The carbonaceous parts of the natural reactors may contain as much as 65.9% organic C by weight in heterogeneous distribution within the clay-rich matrix. The solid carbonaceous matter immobilized small uraninite crystals and some fission products enclosed in this uraninite and thereby facilitated radio nuclide containment in the reactors. Hence, the Oklo natural fission reactors are currently the subjects of detailed studies because they may be useful analogues to support performance assessment of radio nuclide containment at anthropogenic radioactive waste repository sites. Seven carbonaceous matter rich samples from the 1968 {+-} 50 Ma old natural fission reactors and the associated Oklo uranium ore deposit were studied by electron spin resonance (ESR) spectroscopy and by measurements of specific surface areas (BET method). Humic acid, fulvic acid, and fully crystalline graphite standards were also examined by ESR spectroscopy for comparison with the Oklo solid graphitic bitumens. With one exception, the ancient Oklo bitumens have higher organic free radical concentrations than the modem humic and fulvic acid samples. The presence of carbon free radicals in the graphite standard could not be determined due to the conductivity of this material. 72 refs., 7 figs., 1 tab.

Rigali, M.J.; Nagy, B. [Univ. of Arizona, Tucson, AZ (United States)] [Univ. of Arizona, Tucson, AZ (United States)

1997-01-01T23:59:59.000Z

180

Pour une anthropologie anarchiste des techniques du corps dans la sorcellerie sportive : le Mesing chez les Fang du Gabon.  

E-Print Network (OSTI)

??Cette thèse porte sur une analyse diachronique du rapport entre l'anarchisme, les techniques du corps sorcellerie dans la pratique du Mesing et arts martiaux au… (more)

Nguema Akwe, Olivier p

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Uraninite: A 2 Ga spent nuclear fuel from the natural fission reactor at Bangombe in Gabon, West Africa  

SciTech Connect

Uraninites from the Bangombe natural fission reactor (RZB) and normal uranium-ore occur as fine veins in the sandstone host-rock as well as altered, broken, and slightly displaced grains in an illitic matrix, and in nodules and veins of solid bitumen. Inclusions of galena, (Y,Gd)-rich phosphates, a Pb-oxide and a Ti-oxide? were observed. Uraninites just below RZB were partially altered to a uranyl-sulfate. Three generations of uraninite were identified based on their PbO-contents of 8--11.06 wt%, 6 wt% (the largest population), and a younger generation with 3 wt%. Diffusional loss of Pb is indicated by the presence of a Pb-oxide at the interface to the uraninites. The behavior of the metallic fission products, incompatible with the uraninite structure, may mimic the behavior of Pb in these uraninites. The averaged impurity-content ranges from 4.29 to 6.89 wt%, and consists mainly of SiO{sub 2}, TiO{sub 2}, ZrO{sub 2}, FeO, CaO, Al{sub 2}O{sub 3} and P{sub 2}O{sub 5}. The averaged content of Y{sub 2}O{sub 3} and the Ln`s is less than 0.78 wt% and there is a scattered positive correlation with P{sub 2}O{sub 5}. The content of Y + Ln`s is generally highest in the uraninites from RZB. Uraninite hydration and the formation of uranopelite/zippeite have caused complete loss of Y and the Ln`s. The analytical results indicate that Y and the Ln`s, which are high yield fission products, may be released from uraninite during alteration in the presence of P.

Jensen, K.A. [Aarhus Univ. (Denmark). Dept. of Earth Sciences; Ewing, R.C. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Earth and Planetary Sciences; Gauthier-Lafaye, F. [Centre National de la Recherche Scientifique, Strasbourg (France). Centre de Geochemie de la Surface

1997-12-31T23:59:59.000Z

182

untitled  

Annual Energy Outlook 2012 (EIA)

- 4,736 - - - 1 96 97 Gabon ... 3,597 - - - - - - - - - Germany ... - - - 489 - - - 8 - 8 Guatemala ......

183

Introduction The IRD around the world p. 2  

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indonesia thailand laos vietnam new caledonia madagascar costa-rica togo switzerland ethiopia gabon bolivia

184

Ann. For. Sci. 64 (2007) 815824 Available online at: c INRA, EDP Sciences, 2007 www.afs-journal.org  

E-Print Network (OSTI)

wood in plantation grown okoumé (Aucoumea klaineana Pierre) from Gabon Marcel J. Medzeguea,b*, Stephane, Gabon c �cole Nationale des Eaux et Forêts, Cap Esterias, BP 3960 Libreville, Gabon d INRA, LIAMA forest species in Gabon and is used principally for making plywood, but research into the growth

Boyer, Edmond

185

AIMMP signs TTAP MOU The Association of Wood and  

E-Print Network (OSTI)

bringing forests and factories to legality verification in China, Brazil, Guyana, Gabon and the Republic

186

Communiqu de presse 20 Fvrier 2013 Comment les comportements socioculturels influencent la diversit gntique  

E-Print Network (OSTI)

reconstruire l'histoire démographique de 23 populations d'Afrique Centrale (Gabon et Cameroun) appartenant à 23 populations d'Afrique Centrale (Gabon et Cameroun) aux modes de vie contrastés : 10 populations de

187

140/Journal of Essential Oil Research Vol. 22, March/April 2010 Menut et al.  

E-Print Network (OSTI)

-Walker and R. Sillans, Les plantes utiles du Gabon. p. 614, Paul Lechevalier, Paris, France (1961). 9. D K. Schum from Gabon. Flav. Fragr. J., 19, 205­209 (2004). 16. G.A. Alitonou, F. Avlessi, D

188

N e w s F o r & A b o u t U n i v e r s i t y o f F l o r i d a  

E-Print Network (OSTI)

TO THE BENEFIT OF BOTH An hour after sunset on his last night in the west African country of Gabon, UF graduate Gabon's unique environment. An eighth-generation Floridian, Ward has always had an interest

Pilyugin, Sergei S.

189

Highly divergent Staphylococcus aureus isolates from African non-human primatesemi4_316 141..146  

E-Print Network (OSTI)

�nster, Germany. 3 Medical Research Unit, Albert Schweitzer Hospital, Lambar�n�, Gabon. 4 Institute of Tropical nictitans from Gabon and two Piliocolobus badius from C�te d'Ivoire carried two genotypically different S

190

TRAVAUX DU COMIT FRANAIS D'HISTOIRE DE LA GOLOGIE (COFRHIGO)  

E-Print Network (OSTI)

a posteriori. Mots-clés : éruption volcanique - fission atomique - isotopes du soufre - Oklo (Gabon) - XX e - nuclear fission - sulphur isotopes - Oklo (Gabon) - 20 th century. 1 KURODA, P. K. (1956). On the Nuclear

Boyer, Edmond

191

IRD/T. Jaffr IRD/M.Dukhan  

E-Print Network (OSTI)

PERUPERU FRENCH POLYNESIA FRENCH POLYNESIA BOLIVIABOLIVIA Gabon Zimbawe Sri LankaSri Lanka ArgentinaArgentina ColombieColombia Togo IndiaIndia Gabon Togo Guadeloupe Zimbawe EGYPTEGYPT TUNISIATUNISIAMOROCCOMOROCCO

192

CHIMPANZEES TEACH US MAN'S PLACE IN NATURE  

E-Print Network (OSTI)

, Democratic Republic of Congo (DRC, hereafter) and Gabon, are responsible for seventy-seven percent adequately protected. Three countries (Gabon, Equatorial Guinea, and Guinea Bissau) do not have national park

193

Renforcement des capacits en matire de formation en Gestion des ressources  

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, Cameroun, Gabon) · Principales ac?vités: 1. Relance de l'enseignement technique et 9 de 10 pays de la COMIFAC ·Burundi ·Cameroun ·Gabon ·Guinée

Laval, Université

194

Multilocus patterns of nucleotide variability and the demographic and selection history  

E-Print Network (OSTI)

between East (Kenya and Zimbabwe) and West/Central sub-Saharan (Gabon) African populations. A skew toward heterogeneity in levels of polymorphism and divergence in the Gabon sample suggest that this population

195

10.1098/rsta.2003.1198 The formation of spatial patterns in social  

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nest (Gabon, Africa). (e) A close-up view of helicoidal ramps connecting successive ° oors inside an Apicotermes lamani nest (Gabon, Africa). (f), (g) Two frames showing the characteristic pattern of a centrally

Theraulaz, Guy

196

African great apes are natural hosts of multiple related malaria species, including Plasmodium falciparum  

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, BP 769, Franceville, Gabon; e Department of Ecology and Evolutionary Biology, University Africa (Cameroon and Gabon) from both wild-living and captive animals. The studies in wild apes used

197

Anthropos, 2012, vol. 107, n2, p. 387-406. Blurring the Lines  

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Babongo Pygmies and their Neighbours (Gabon) Julien Bonhomme, Magali De Ruyter, Guy-Max Moussavou1 "We in Gabon that now bears his name, Paul Du Chaillu visited an encampment of "Obongos", or "dwarfed wild

Boyer, Edmond

198

Incomplete sexual isolation in sympatry between subspecies of the butterfly Danaus chrysippus (L.)  

E-Print Network (OSTI)

to the Camaroun­Gabon border, whence south to the Cape chrysippus is the only form. Even collections from the islands of Fernando Po (off Camaroun) and Sao~ Thome´ (west of Gabon) are also monomorphic for alcippus

199

Precipitation of uraninite in chlorite-bearing veins of the hydrothermal alteration zone (argile de pile) of the natural nuclear reactor at Bangombe, Republic of Gabon  

SciTech Connect

This paper describes the mineralogy of a phyllosilicate/uraninite/galena-bearing vein located within the hydrothermal alteration halo associated with the Bangombe reactor. Phyllosilicates within the vein include a trioctahedral Al-Mg-Fe chlorite (ripidolite), Al-rich clay (kaolinite and/or donbassite) and illite. Textural relations obtained by backscattered-electron imaging suggest that ripidolite crystallized first among the sheet silicates. Uraninite is spatially associated with ripidolite and probably precipitated at a later time. While energy-dispersive X-ray analyses suggest that the uranium phase is predominantly uraninite, coffinite or other phases may also be present.

Eberly, P.; Ewing, R. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Earth and Planetary Sciences; Janeczek, J. [Silesian Univ., Sosnowiec (Poland). Dept. of Earth Sciences

1995-12-31T23:59:59.000Z

200

Politiques éducatives et réformes curriculaires au Gabon à l’ère de la mondialisation : enjeux socioculturels et jeu des acteurs dans l’école moyenne.  

E-Print Network (OSTI)

??Cette recherche étudie les processus de médiation à l’œuvre dans l’appropriation des directives internationales dans un pays qui a été soumis à diverses influences exogènes… (more)

Bekale, Dany

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Regularization strategy for the layered inversion of airborne TEM data: application to VTEM data acquired over the basin of Franceville (Gabon)  

E-Print Network (OSTI)

Airborne transient electromagnetic (TEM) is a cost-effective method to image the distribution of electrical conductivity in the ground. We consider layered earth inversion to interpret large data sets of hundreds of kilometre. Different strategies can be used to solve this inverse problem. This consists in managing the a priori information to avoid the mathematical instability and provide the most plausible model of conductivity in depth. In order to obtain fast and realistic inversion program, we tested three kinds of regularization: two are based on standard Tikhonov procedure which consist in minimizing not only the data misfit function but a balanced optimization function with additional terms constraining the lateral and the vertical smoothness of the conductivity; another kind of regularization is based on reducing the condition number of the kernel by changing the layout of layers before minimizing the data misfit function. Finally, in order to get a more realistic distribution of conductivity, notably...

Guillemoteau, Julien; Behaegel, Mickael; 10.1111/j.1365-2478.2011.00990.x

2012-01-01T23:59:59.000Z

202

Lecture du discours romanesque féminin du Gabon : Analyse sociopragmatique des œuvres de Chantal Magalie MBAZOO-KASSA, Honorine NGOU et Sylvie NTSAME.  

E-Print Network (OSTI)

??Aborder le roman féminin sous l?angle d?un énoncé discursif nécessite raisonnablement que l?on prenne en compte, le contexte social, culturel et linguistique de production, les… (more)

Ntsame Okourou, Franckline

2012-01-01T23:59:59.000Z

203

Efficacy and safety of a new pediatric artesunate-mefloquine drug formulation for the treatment of uncomplicated falciparum malaria in Gabon  

Science Journals Connector (OSTI)

Pädiatrische Medikamentenformulierungen sind ein wichtiger Fortschritt in der Therapie von afrikanischen Kindern, die an Malaria tropica erkrankt sind. In dieser klinischen Studie wurde die Wirksamkeit, Sicher...

Marielle K. Bouyou-Akotet; Michael Ramharter…

2010-03-01T23:59:59.000Z

204

Electric Signal Variation Among Seven Blunt-Snouted Brienomyrus species (Teleostei: Mormyridae) from a Riverine Species Flock in Gabon, Central Africa  

Science Journals Connector (OSTI)

A recently discovered species flock of mormyrid fishes is marked by a striking degree of electric signal diversity among species of rather similar form. We investigated electric organ discharge (EOD) variation...

Matthew E. Arnegard; Carl D. Hopkins

2003-08-01T23:59:59.000Z

205

La traduction entre outil d'enseignement et discipline scientifique : le cas de l'espagnol au Gabon et en Guinée-Equatoriale.  

E-Print Network (OSTI)

??La présente étude a consisté à traiter de différents points relatifs à la traductologie et à la traduction. Après avoir mis en exergue les différentes… (more)

Okome Engouang, Liliane-surprise

2013-01-01T23:59:59.000Z

206

Malaria in pregnancy in rural Gabon: a cross-sectional survey on the impact of seasonality in high-risk groups  

Science Journals Connector (OSTI)

Malaria remains one of the most important infectious diseases in pregnancy in sub-Saharan Africa. Whereas seasonal malaria chemoprevention is advocated as public health intervention for children in certain areas ...

Mario J Jäckle; Christian G Blumentrath; Rella M Zoleko…

2013-11-01T23:59:59.000Z

207

Assessing Initial Reintroduction Success in Long-Lived Primates by Quantifying Survival, Reproduction, and Dispersal Parameters: Western Lowland Gorillas (Gorilla gorilla gorilla) in Congo and Gabon  

Science Journals Connector (OSTI)

Postrelease monitoring is an important aspect of reintroduction projects, one outcome of which is to allow an assessment of the initial success of the reintroduction, often measured by quantifying survival and...

Tony King; Christelle Chamberlan; Amos Courage

2012-02-01T23:59:59.000Z

208

L'église catholique au Gabon. De l'entreprise missionnaire à la mise en place d'une église locale 1844 - 1982.  

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??La naissance des Eglises locales en Afrique, disons-le, est sans conteste l’œuvre première de vaillants missionnaires parfois désintéressés. La mise en place des premières structures… (more)

Assoumou Nsi, Michel

2011-01-01T23:59:59.000Z

209

High level of inter-species transmission of simian foamy virus from non-human primates to humans in Gabon, central Africa  

Science Journals Connector (OSTI)

Each of the pathogenic human retroviruses (HIV-1/2 and HTLV-1) has a non-human primate (NHP) counterpart, and the presence of these retroviruses in humans results from interspecies transmission. The passage of an...

Augustin Mouinga-Ondémé; Mélanie Caron; Antoine Gessain; Mirdad Kazanji

2011-06-01T23:59:59.000Z

210

Etude de l’organisation et du fonctionnement des institutions sportives au Gabon : genèse et analyse prospective d'une politique publique.  

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??Les activités physiques, et les jeux traditionnels font partis de la culture universelle, et appartiennent à l’humanité. Les peuples d’Afrique ont dû abandonner les leurs… (more)

Allogho-Nze, Célestin

2011-01-01T23:59:59.000Z

211

Les représentations sociales des élèves, des enseignants du secondaire et des parents à propos de la réussite scolaire en zones urbaine et rurale au Gabon.  

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??Cette thèse avait pour objectif de dégager et de comparer les représentations sociales de la réussite scolaire des élèves, des enseignants du secondaire et des… (more)

Immongault, Christine Marthe

2014-01-01T23:59:59.000Z

212

Behavioural Processes 82 (2009) 249255 Contents lists available at ScienceDirect  

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in C57BL/6J mice Tania J. Bettis , Lucia F. Jacobs Department of Psychology, University of California in Corresponding author. E-mail address: taniabettis@gmail.com (T.J. Bettis). other rodent species (meadow vole

Jacobs, Lucia

213

Traumatic Brain Injury: The “Signature Injury” of the Iraq War  

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news/nationworld/iraq/bal- factorvii,0,2855253.storygallery?The “Signature Injury” of the Iraq War by Tania Aftandiliansremains undi- lives in Iraq; however, funding is severely

Aftandilians, Tania

2009-01-01T23:59:59.000Z

214

untitled  

U.S. Energy Information Administration (EIA) Indexed Site

- 0 0 13 - 1 1 7 16 22 Gabon ... 24 - - - - - - - - - Germany ... - 0 0 2 - 0 0 1 2 3 Guatemala ......

215

10 Annual report 2011 Annual report 2011 11  

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with the National Institute of Statistics in Mali and the National parks agency in Gabon. It was in that countr

216

Institut de recherche pour le dveloppement  

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'Ivoire..................................................................................................................................................15 Cameroun - Congo - Gabon - Guinée équatoriale - République centrafricaine - République

217

Kharisma Jaya Gemilang (KJG), an Indonesian company part-  

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The Forest Trust (TFT) Crassier - Switzerland Phone: + 41 (0) 22 367 94 40 Partner Countries GABON DECIDES

218

Yale F&ES Publication Series Report Number 8  

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, William Gombya-Ssembajjwe, Felix Njovu, Benjamin Cashore Gabon 443 Richard Eba'a Atyi South Africa 477

219

Presented by : Mbouri DIENG  

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Some places to visit Gabon History Politics Geography Fauna and Flora Culture Our Work Nework topology 18/07/2014 DIENG /OKOUMBA Summer 2012 #12;Gabon Location: Cost of central Africa Portuguese 2012 #12;Gabon Green: equatorial forest Yellow: equatorial sun and mineral resources Blue: ocean

Trajkovic, Ljiljana

220

Accepted by P. C. Rasmussen: 17 Jul. 2008; published: 15 Aug. 2008 27 ISSN 1175-5326 (print edition)  

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.mapress.com/zootaxa/ A new species of African Forest Robin from Gabon (Passeriformes: Muscicapidae: Stiphrornis) BRIAN K@si.edu Abstract We describe a new species of forest robin from the Gamba Complex in southwest Gabon. This common- cally diverse Gamba Complex of Protected Areas in Gabon, is a primary conservation priority. In 2000

Nottingham, University of

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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221

A New Malaria Agent in African Hominids Benjamin Ollomo1.  

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, Franceville, Gabon, 2 Laboratoire Ge´ne´tique et Evolution des Maladies Infectieuses, UMR 2724 CNRS-IRD, IRD, Franceville, Gabon Abstract Plasmodium falciparum is the major human malaria agent responsible for 200 to 300 chimpanzees (Pan troglodytes) kept as pets by villagers in Gabon (Africa). Analysis of its complete

222

JOURNAL OF CLINICAL MICROBIOLOGY, Aug. 2007, p. 25802589 Vol. 45, No. 8 0095-1137/07/$08.00 0 doi:10.1128/JCM.02554-06  

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from Humans in Gabon and Cameroon Jacques Breton,1,4 Emmanuelle Bart-Delabesse,2 Sylvestre Biligui,1-Mycologie, Universite´ des Sciences de la Sante´, B.P. 4009, Libreville, Gabon4 ; Unite´ des Maladies Infectieuses, Fondation Jeanne Ebori, B.P. 861, Libreville, Gabon5 ; Centre de Traitement Ambulatoire, Ho^pital Ge

Carbone, Alessandra

223

Short Communication Satellite tracking highlights difficulties in the design  

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National Park in Gabon on the equatorial West African coast. The National Park includes critical nesting, fisheries, Gabon, leatherback turtle, marine protected area, nesting. The use of marine protected areas). Leatherback turtles nesting in Gabon (Fig. 1a) form a globally important sub-population (Fretey, 1984; Formia

Exeter, University of

224

"Quaderni di Ricerca in Didattica (Mathematics)", n20 suppl 1, 2010 G.R.I.M. (Department of Mathematics, University of Palermo, Italy)  

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en Education (LARED) ENS de Libreville - Gabon E-mail: lauryl_ndong@yahoo.com Résumé. Dans cette recherche que nous avons menée au Gabon et en France, dans le cadre de notre doctorat en sciences de l'ENS de Libreville. Abstract. In this research we conducted in Gabon and France, as part of our Ph

Spagnolo, Filippo

225

Using Satellite Tracking to Optimize Protection of Long-Lived Marine Species: Olive Ridley Sea Turtle  

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, Mayumba, Gabon, 5 Wildlife Conservation Society, Global Conservation Program, New York, New York, United States of America, 6 Agence Nationale des Parcs Nationaux, Libreville, Gabon, 7 Marine Turtle Research and a proposed transboundary park between Gabon and the Republic of Congo, both created to reduce unintentional

Costa, Daniel P.

226

American Mineralogist, Volume 88, pages 15831590, 2003 0003-004X/03/00101583$05.00 1583  

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, Gabon MOSTAFA FAYEK,1,3, * SATOSHI UTSUNOMIYA,2 RODNEY C. EWING,2 LEE R. RICIPUTI,1,3 AND KELD A. JENSEN-scale porosity and post- depositional alteration of U-bearing phases. THE FRANCEVILLIAN URANIUM DEPOSITS, GABON in South Eastern Gabon (e.g., see Fig. 1 in Gauthier-Lafaye and Weber 1989; Parnell 1996). The deposits

Fayek, Mostafa

227

Biogeosciences, 9, 179191, 2012 www.biogeosciences.net/9/179/2012/  

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and spaceborne LiDAR in Lop�e National Park, Gabon: overcoming problems of high biomass and persistent cloud E. T, California, USA 3Agence Nationale des Parcs Nationaux, Libreville, Gabon 4School of Natural Sciences, Libreville, Gabon 6Earth and Biosphere Institute, School of Geography, University of Leeds, UK 7Grantham

Lefsky, Michael

228

Master1RservoirsGologiquesDynamiquedesBassins-MichelSranne Post-rift tectonics on passive margins  

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postrift ? South Gabon 38 Master1RéservoirsGéologiquesDynamiquedesBassins-MichelSéranne Parameters : Niger delta evaporites décollement : Gabon margin 40 Master1Réservoirs view Evaporites = décollement shortening extension Salt tectonics = fonction (slope & load) Gabon

Demouchy, Sylvie

229

American Journal of Primatology 68:928933 (2006) RESEARCH ARTICLE  

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, Franceville, Gabon During the period of December 2004 to January 2005, Bacillus anthracis killed three wild has had a devastating effect on the Central African great ape populations of Gabon and the Republic 1994 and 1996 throughout Minkebe Forest, which is located in northeastern Gabon close to the border

230

C. Severi & J. Bonhomme (ds.) Paroles en actes, Paris, L'Herne (Cahiers d'anthropologie sociale 5) Alerte aux voleurs de sexe !  

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dernièrement au Togo. Au Gabon, il semble que l'épisode du marché d'Akébé Plaine ne soit pas le seul. Au Lycée, Mauritanie, Gabon, Congo, RDC. La rumeur des vols de sexe (1975-2009) Concernant les vols de sexe au Gabon, j

Paris-Sud XI, Université de

231

ARTICLE IN PRESS Gulf of Guinea continental slope and Congo (Zaire) deep-sea fan  

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Gabon, Congo and Angola, presents large depocenters where sediments have been accumulating since Early is shifted northward and reaches the Congo­Gabon boundary on the shelf. Sedimentation on the slope directed long- shore drifts that build extensive sand bars along the Congo and Gabon shoreline. The low

Demouchy, Sylvie

232

pidmiologie 210 A. Grolla, A. Lucht, D. Dick et al.  

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de Centre Afrique (RCA), le Cameroun, le Tchad, le Congo, le Gabon et la Guinée-Equatoriale. Depuis'étude des récentes manifestations épidémiques et épizootiques du VEBO au Gabon et pays avoisinants, l, Gabon and Equatorial Guinea. Since 1992, ELISA antibody test along with a RT-PCR have been used

Paris-Sud XI, Université de

233

2011 Korean Government Scholarship Program Guideline for International Students  

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, Egypt, Ethiopia, Fiji, France, Gabon, Georgia, Ghana, Greece, Guatemala, Guinea, Honduras, Hungary, Iran, Bangladesh, Democratic Republic of the Congo, Egypt, Fiji, Gabon, Greece, Guatemala, Kenya, Kuwait, Malaysia-Leste, Ecuador, El Salvador, Egypt, Ethiopia, Fiji, France, Gabon, Germany, Greece, Hungary, Iran, Jamaica

Auckland, University of

234

511ZOOSYSTEMA 2004 26 (3) Publications Scientifiques du Musum national d'Histoire naturelle, Paris. www.zoosystema.com The Petrocephalus  

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, Paris. www.zoosystema.com The Petrocephalus (Pisces, Osteoglossomorpha, Mormyridae) of Gabon, Central, BP 9144, Libreville (Gabon) atoham@wwfgabon.org KEY WORDS Pisces, Mormyridae, electric fishes, EOD, Gabon, Africa, Petrocephalus sullivani n. sp., new species. Lavoué S., Hopkins C. D. & Kamdem Toham A

Hopkins, Carl D.

235

MEETING ABSTRACT Open Access High level of inter-species transmission of simian  

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non-human primates to humans in Gabon, central Africa Augustin Mouinga-Ondémé1 , Mélanie Caron1 in a free-ranging colony of mandrills (CIRMF primate center) and in mandrills living in natura in Gabon of Gabon. Lastly, we inves- tigated the possible transmission of SFVs to humans. Results Seropositivity

Paris-Sud XI, Université de

236

SHORT REPORT Open Access Acute risk for hepatitis E virus infection among  

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. Pregnant women are at particularly high risk for acute or severe hepatitis E. In Gabon, a central African or HTLV-1 in Gabon. Of 243 samples collected, 183 were positive for HIV-1 and 60 for HTLV-1; 16 women (6, with an increased viral load. Keywords: HEV prevalence, HIV-1 and HTLV-1 infections, Pregnant women, Gabon, Central

Paris-Sud XI, Université de

237

article publie en 1974 : HLADIK A. (1974) --Importance des lianes dans la production foliaire de la fort quatoriale du  

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la forêt équatoriale du Nord-Est du Gabon. C.R. Acad. Sc. Paris, 278 : 2527-2530. C. R. Acad. Se production foliaire de la foret equatoriale du Nord-Est du Gabon. Note (*) de Mme Annette llladik, presentee dense, humide et sem.: pervirente du Nord-Est du Gabon, nous a permis de mettre en evidence I

Paris-Sud XI, Université de

238

MUSUM NATIONAL D'HISTOIRE NATURELLE ED 227 Sciences de la Nature et de l'Homme  

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ACTIVIT�S LITTORALES AU GABON Sous la direction de : Monsieur le Professeur Serge BAHUCHET Composition du SAVOIR-FAIRE DANS UN CONTEXTE PLURICULTUREL �TUDE COMPARATIVE DES ACTIVIT�S LITTORALES AU GABON Sous la, frères, Mamans et Papas du Gabon, qu'ils soient gabonais, béninois, congolais, sénégalais, togolais

Paris-Sud XI, Université de

239

www.cnrs.fr COMMUNIQU DE PRESSE NATIONAL I PARIS I 4 JUILLET 2011  

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Franceville au Gabon, et en collaboration avec d'autres organismes4, a montré la présence de Plasmodium international de recherches médicales de Franceville au Gabon, IRD, Université de Montpellier, Université de la; www.cnrs.fr Le cercopithèque, Cercopithecus nictitans © Jean-Louis Albert, CIRMF, Gabon Bibliographie

240

Discriminatory power of different arthropod data sets for the biological monitoring of anthropogenic  

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Recherche en Ecologie Tropicale I.R.E.T/CENAREST, B.P. 13354, Libreville, 3 4 ^Gabon; Ecole Nationale des Eaux et Forets, B.P. 3960, Libreville, Gabon; Australian School of 5 Environmental Studies, Griffith and young secondary forests, savanna and cultivated gardens) at Gamba, Gabon. We report

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Conservation Medicine: Human Health:Ecosystem Sustainability Official  

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10.1007/s10393-010-0364-4 High Prevalence of the Amphibian Chytrid Pathogen in Gabon Rayna C. Bell of the Amphibian Chytrid Pathogen in Gabon Rayna C. Bell,1 Adriana V. Gata Garcia,1 Bryan L. Stuart,2 and Kelly R two national parks in Gabon (Monts de Cristal and Ivindo). Bd was detected in 20 of the 42 species

Zamudio, Kelly R.

242

CROISSANCE DES PLANTES EN SOUS-BOIS DE FORET DENSE HUMIDE  

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CROISSANCE DES PLANTES EN SOUS-BOIS DE FORET DENSE HUMIDE (MAKOKOU, GABON) Annette HLADIK* et Gabon. Les plantes ont ete observees sur 2 transects etablis de maniere 'comparative au sein de la mosai pouvoir observer Ie devenir a long terme des for- mes vivantes marquees: au Gabon, la station IRET

Paris-Sud XI, Université de

243

Do Megafauna influence spatial patterns of nutrient distribution?  

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and soil mineral concentrations at the Langoué Bai, Gabon. Submitted in partial fulfillment of nutrient concentration in soil and litter samples at the Langoué Bai in Gabon. I identified only limited in Gabon throughout my study. Likewise, my thanks goes to Dr Kathryn Jeffrey and Natacha Bengone from

Malhi, Yadvinder

244

Environmental Biology of Fishes 67: 321339, 2003. 2003 Kluwer Academic Publishers. Printed in the Netherlands.  

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) from a riverine species flock in Gabon, Central Africa Matthew E. Arnegard & Carl D. Hopkins Department the rivers and streams of Gabon. Introduction Numerous mate attraction signals playing a role in species in an undescribed Brienomyrus species from Gabon. A neural pathway for EOD temporal coding was subsequently

Hopkins, Carl D.

245

New Strain of Simian Immunodeficiency Virus Identified in Wild-Born Chimpanzees from Central Africa  

E-Print Network (OSTI)

´trovirologie, Centre International de Recherches Me´dicales de Franceville (CIRMF), Franceville, Gabon, 2 Centre de Primatologie, Centre International de Recherches Me´dicales de Franceville (CIRMF), BP 769, Franceville, Gabon tested 104 wild-born captive chimpanzees from Gabon and Congo. We identified two new cases of SIVcpz

Boyer, Edmond

246

UNIVERSITE MICHEL DE MONTAIGNE BORDEAUX III UFR DE GEOGRAPHIE ET AMENAGEMENT  

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'Université de Bordeaux 3 LE GABON ET LA QUESTION DE LA SOCIETE DE L'INFORMATION. APPROCHE SPATIALE DES RESEAUX Gabon Michel LESOURD, Professeur à lUniversité de Rouen Roland POURTIER, Professeur à lUniversité de semploie modestement à léchelle du Gabon, à décrypter avec une perspective comparative, les enjeux

Paris-Sud XI, Université de

247

Accepted by L. Page: 25 Jan. 2005; published: 1 Feb. 2005 1 ISSN 1175-5326 (print edition)  

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.mapress.com/zootaxa/ A new Stomatorhinus (Osteoglossomorpha: Mormyridae) from the Ivindo River, Gabon, West Central Africa River, in Gabon, West Central Africa. This species is characterized by its very small size which with visible tubes and pores. Stomatorhinus ivin- doensis is endemic to the Ivindo River basin of Gabon

Hopkins, Carl D.

248

ELSEVIER Earth and Planetary Science Letters I56 (1998) 239-252 Gravity anomalies and segmentation of the continental margin  

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in extensional regions. Like many margins, the edge effect `high' offshore Gabon. West Africa is located at the shelf break in the region of maximum sediment thickness. Gabon differs, however, from other margins along-strike of the Gabon margin and that passive margins may be highly segmented as regards their long

Watts, A. B. "Tony"

249

Tropical Timber Market Report Volume 15 Number 3, 1 15  

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Freight Index 20 Tropical Timber Price Trends 20 Top Story Clarification on Gabon log ban At a recent meeting with Gabon's Minister for Forests, executives of the country's timber industries were advised Clarification on Gabon log ban 2 Malaysia progresses with VPA 3 Plywood push in India 5 Call for lower import

250

LABORATOIRE LETTRES IDEES ET SAVOIRS (LIS) Spcialit : Langues et Littratures trangres  

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, Maître de conférences à l'université Omar Bongo (Gabon) Rapporteur : M. Steeve R. Renombo, Maître de conférences à l'Université Omar Bongo (Gabon) Directeur de Thèse : M. Papa Samba DIOP, Professeur de : M. Nicolas MBA ZUE, Maître de conférences à l'université Omar Bongo (Gabon) Rapporteur : M. Steeve R

Paris-Sud XI, Université de

251

DOCTORAT AIX-MARSEILLE UNIVERSITE dlivr par  

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décembre 2011 VARIATION ET VARIETES MORPHOSYNTAXIQUES DU FRAN�AIS PARLE AU GABON Volume 1 Directeur de variétés morphosyntaxiques du français parlé au Gabon La thèse consiste en une comparaison entre deux types'ailleurs unique langue officielle du Gabon) : des locuteurs âgés et peu ou non scolarisés et des jeunes gens entre

Boyer, Edmond

252

UNIVERSITV PAUL-VALRY --MONTPELLIER III ARTS, LETTRES, LANGUES, SCIENCES HUMAINES ET SOCIALES  

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,version1-26Sep2012 #12;Résumés Résumé en français Au Gabon, le mariage est une institution qui permet l travail de terrain réalisé au Gabon et en France nous a permis d'établir une typologie des conduites et dans une société gabonaise en plein évolution. Mots clés : Gabon, mariage, couple, représentations

Boyer, Edmond

253

En vue de l'obtention du DOCTORAT DE L'UNIVERSIT DE TOULOUSE  

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Paysage de Blois (France)Marcellin Nziengui, Directeur Général, Ecole Nationale des Eaux et Forêts (Gabon Eaux et Forets du Gabon, pour avoir accepté de participer au jury de cette thèse. Je remercie également restaurants me manqueront beaucoup. Merci également à Pierre Moukeli, Maitre Assistant CAMES1 au Gabon, pour

Paris-Sud XI, Université de

254

Ressources vivrires --A. & C.M. Hladik --Page 1 Texte publi dans l'ouvrage de 2007 : Coeur d'Afrique. Gorilles, cannibales et Pygmes  

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'Afrique. Gorilles, cannibales et Pygmées dans le Gabon de Paul Du Chaillu. (Jean-Marie Hombert & Louis Perrois Eds-ouest du Gabon, Du Chaillu a eu l'occasion d'observer quelles étaient les plantes cultivées introduites, cannibales et Pygmées dans le Gabon de Paul Du Chaillu, J.-M. Hombert & L. Perrois (dir.) (Ed.) (2007) 196

Boyer, Edmond

255

IRD Sige, 44, boulevard de dunkerque 13572 Marseille cedex 02 Coopration internationale  

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du Président de l'IRD au Gabon 3 - 4 novembre 2011 Communiqué de presse | Marseille | 2 novembre 2011 Michel Laurent, Président de l'Institut de recherche pour le développement (IRD), se rendra au Gabon du 3 compétence pour le Gabon). Lors de cette mission, le Président de l'Institut participera notamment au premier

256

Annales Fyssen, 2006, n21, p.48-60 TRANSMISSION ET TRADITION INITIATIQUES EN AFRIQUE CENTRALE  

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initiatiques du Gabon, l'article s'attache à mettre en valeur l'importance réflexive de la transmission dans la : elle se constitue à travers une histoire racontant la transmission d'une tradition. Au Gabon, cette, savoir initiatique, mémoire, sociétés lignagères, généalogie, Gabon, Afrique centrale. * * * Dans un

Paris-Sud XI, Université de

257

Nd'ordre : D.U. 1806 Universite Blaise-Pascal  

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´erieures de nombreux ´etudiants `a l'´etranger, en construi- sant des universit´es au Gabon et en mettant en´e de s'instruire et de se former. Avec les meilleurs des enfants du GABON, il parvient chaque jour `a`ere ´energique et `a tous ceux qui sont venus du GABON et de tous les coins de france pour assister `a ma

Paris-Sud XI, Université de

258

Texte publi en 2010 dans l'ouvrage : Primates. (J.J. Petter, Ed.). Nathan, Paris  

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forêt dense du Gabon, nous eûmes le privilège d'observer des comportements permettant de com- prendre l autres et non l'inverse. Les chimpanzés du Gabon Le groupe de chimpanzés que nous observions dans la forêt du Gabon était au repos dans une petite clairière, chacun étendu au sol, faisant une sieste

Paris-Sud XI, Université de

259

Universit du Littoral Cte d'Opale Ecole doctorale SESAM (E.D n73)  

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'aquaculture au Gabon : une étude de la gestion durable des ressources halieutiques et de leur écosystème dans les Conférences - HDR à l'Université Omar Bongo (Gabon) - Rapporteur Mr David Gilbert - Directeur de recherche à l soutien. - la Direction générale des pêches et de l'aquaculture du Gabon qui a mis à ma disposition les

Paris-Sud XI, Université de

260

COLE DOCTORALE SCIENCES DE L'HOMME ET DE LA SOCIET LABORATOIRE CEDETE EA 1210  

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'Orléans Discipline/ Spécialité : Géographie-Aménagement-Environnement Gouvernance des ressources forestières au Gabon'études au Gabon et de subvenir aux nombreux besoins du financement de la thèse. Entre les officiels et ceux. - Brice Didier KOUMBA MABERT (CNDIO-GABON) et Khy-Meng NAY (BRGM) pour l'aide à la réalisation des cartes

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Universit du Littoral Cte d'Opale (ULCO) Ecole doctorale Sciences conomiques, sociales, amnagement et management  

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environnemental dans la zone de N'toum au Gabon Cas de l'entreprise CIMGABON Sous la Direction de Christophe gestion du risque environnemental dans la zone de N'toum au Gabon Cas de l'entreprise CIMGABON Sous la Essangui, Pr�sident de Brainforest Gabon, ainsi qu'envers Monsieur Mb�ga No�l, ex-Directeur des ressources

Boyer, Edmond

262

1 Introduction L'information gntique dont les organismes  

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- trafricaine. Certaines des plus vastes étendues de forêt tropicale humide se trouvent au Gabon, et la région sur la caryologie des petits mammifères du Gabon. Récemment, nous avons participé à un recensement de'Institution Smithsonian et avec l'appui de la Fondation Shell et Shell Gabon. Nous avons prélevé des petits mammifères

Baker, Robert J.

263

Julien Bonhomme Annales. Histoire, Sciences Sociales Dossier Culture crite en Afrique  

E-Print Network (OSTI)

PAR DECRET Les écritures d'un prophète africain Sur les murs de Libreville, la capitale du Gabon attiré mon attention dès mon premier séjour au Gabon en 2000. Mais ce n'est qu'en 2005 que j'ai croisé le and the pragmatics of writing in Post-Colonial Gabon », in R. BAXSTROM et T. MEYERS (éd.), anthropologies, Baltimore

Paris-Sud XI, Université de

264

LA THERMORGULATION ET L'COLOGIE DE QUELQUES ESPCES D'ABEILLES SOCIALES  

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biotopes, the forest of Gabon (Makokou) and the savannah of the Ivory Coast (Lamto) thanks-d'Ivoire et de l'Institut de Primatologie et d'I! cologie équatoriale du C.N.R.S. à Makokou au Gabon. #12;now étudiée et leur nidification ou leur écologie au Gabon et en Côte-d'Ivoire. Brièvement nous avons observé

Paris-Sud XI, Université de

265

COLE DES HAUTES TUDES EN SCIENCES SOCIALES pour obtenir le grade de  

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!: Le Miroir et le Crâne Le parcours rituel de la société initiatique Bwete Misoko (Gabon) Directeur de particulièrement!: ­!au Gabon, Georges Salaun pour son hospitalité indéfectible!; les membres du Laboratoire transcription des termes vernaculaires, j'utilise l'Alphabet Scientifique du Gabon, élaboré à partir de l

Paris-Sud XI, Université de

266

UNIVERSITE PARIS-EST MARNE-LA-VALLEE FACULT DES LETTRES ET SCIENCES HUMAINES  

E-Print Network (OSTI)

DE VIE DANS LA MEDECINE MODERNE ET TRADITIONNELLE : CAS DU GABON tel-00712688,version1-27Jun2012 #12 vie dans la médecine moderne et traditionnelle au Gabon, à Dominique Folscheid. Pour avoir profondément renouvelé en impulsant en France, au Gabon et au Cameroun la réflexion éthique dans le domaine de

Paris-Sud XI, Université de

267

ETUDE SUR LES RFORMES CURRICULAIRES PAR  

E-Print Network (OSTI)

, ministère de l'éducation, Cameroun Gabon : Ansoumana Sane, coordonnateur national des blocs d international, Gabon Mali : Marguerite Altet, professeure des universités, centre de recherche en éducation de base au Cameroun, Gabon, Mali, Sénégal et enTunisie qui ont permis à la réalisation de ces études et en

Paris-Sud XI, Université de

268

Cahiers gabonais d'anthropologie n17-2006 1938 LA FEUILLE SUR LA LANGUE  

E-Print Network (OSTI)

INITIATIQUE Julien Bonhomme (Université Lyon-2) L'étude des sociétés initiatiques, au Gabon comme ailleurs initiatique originaire des Mitsogo du Gabon central mais aujourd'hui largement répandu, notamment dans la recueillies lors de séjours répétés de terrain dans plusieurs provinces du Gabon (Ngounié, Estuaire, Ogooué

Boyer, Edmond

269

Texte publi en 2010 dans l'ouvrage : Primates. (J.J. Petter, Ed.). Nathan, Paris  

E-Print Network (OSTI)

dense du Gabon, nous eûmes le privilège d'observer des comportements permettant de comprendre l autres et non l'inverse. Les chimpanzés du Gabon Le groupe de chimpanzés que nous observions dans la forêt du Gabon était au repos dans une petite clairière, chacun étendu au sol, faisant une sieste

Paris-Sud XI, Université de

270

Hindawi Publishing Corporation International Journal of Forestry Research  

E-Print Network (OSTI)

´eane, Carrefour Saoti, Quartier Haut Gu´e Gu´e, Libreville, Gabon 11TEREA, R´esidence Nkov´e, B^atterie IV, BP 831, Libreville, Gabon 12Agence Nationale des Parcs Nationaux, Pr´esidence de la R´epublique, BP 20379, Libreville, Gabon Correspondence should be addressed to Danae Maniatis, danae.maniatis@gmail.com Received 8 July

Malhi, Yadvinder

271

SMB, Macromolecular Crystallography  

NLE Websites -- All DOE Office Websites (Extended Search)

give rise to increased user demand and scientific productivity. BL 7-1 Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris...

272

Interpretacin de la Biodiversidad Margret C. Domroese  

E-Print Network (OSTI)

Connor, Myrtle Flowers, Kevin Frey, Joan Haley, Susan Jacobson, Sharon Katz, Peter Maille, Alison Ormsby, Sofia Paredes-Maury, Dana Porfirio, Thérèse Ratodiarsoa, John Shores y Michael Simsik. El trabajo de

273

Past Members | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Kate Scholberg Sally Seidel Mel Shochet Thomas Shutt Hank Sobel P. Sphicas Maury Tigner W. Trischuk R. Tschirhart H. White G. Wormser H. Yamamoto Last modified: 7112014 8:54:28...

274

Stump the Scientist Question Form | GE Global Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic East Timor Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Fiji Finland France Gabon...

275

E-Print Network 3.0 - arab jamahiriya mauritius Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Paraguay Samoa Tonga... Darussalam Cambodia Congo Cyprus Eritrea Gabon Gambia* Israel Jordan Kazakhstan Kyrgyzstan Libyan Arab... Trinidad and Tobago Uganda United Arab Emirates...

276

E-Print Network 3.0 - arab republic senegal Sample Search Results  

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Sri Lanka Swaziland... Darussalam Cambodia Congo Cyprus Eritrea Gabon Gambia* Israel Jordan Kazakhstan Kyrgyzstan ... Source: International Centre for Theoretical Physics (ICTP),...

277

E-Print Network 3.0 - arab jamahiriya morocco Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

2007 page 1 Summary: Darussalam Cambodia Congo Cyprus Eritrea Gabon Gambia* Israel Jordan Kazakhstan Kyrgyzstan Libyan Arab... Jamahiriya* Malawi Maldives Mauritius Moldova...

278

U.S. Imports from All Countries  

U.S. Energy Information Administration (EIA) Indexed Site

Egypt El Salvador Equatorial Guinea Estonia Finland France Gabon Georgia, Republic of Germany Ghana Gibralter Greece Guatemala Guinea Hong Kong Hungary India Indonesia Ireland...

279

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

E-Print Network (OSTI)

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

Irland, Lloyd C.

2010-01-01T23:59:59.000Z

280

Entreprise cre en lien avec l'IRD  

E-Print Network (OSTI)

son projet au Sud, l'entrepreneur s'est rapproché de Jean-Paul Gonzalez IRD, en affectation au Gabon

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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281

Le mariage africain, entre tradition et modernité : étude socio-anthropologique du couple et du mariage dans la culture gabonaise.  

E-Print Network (OSTI)

??Au Gabon, le mariage est une institution qui permet l'union de deux personnes et de deux familles. Sur le plan juridique, seul le mariage civil… (more)

Bounang Mfoungué, Cornelia

2012-01-01T23:59:59.000Z

282

50 Los Recursos 58 Anexos  

E-Print Network (OSTI)

Marruecos Francia 1.377 agentes Italia Mali NígerGuadalupe Estados Unidos Argentina Gabon Etiopía India

283

E-Print Network 3.0 - adolescent ncs-a supplement Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Male Mandrills (Mandrillus... -CNRS, Montpellier, France 2 UGENET, CIRMF, Franceville, Gabon The adolescent period in male mandrills extends from... the age of 10 years), and is...

284

A theoretical model for a Fang-French-English Specialized multi-volume school dictionary.  

E-Print Network (OSTI)

??The policy to preserve and implement mother tongues as medium of education in Gabon will lead to the establishing of a bilingual education system. This… (more)

Ella, Edgard Maillard

2007-01-01T23:59:59.000Z

285

theirdaroundtheworld irdinanutshell  

E-Print Network (OSTI)

territories Haiti Liban Chad TUNISIA Gabon Cambodia THAILAND 1-9 staff members 10-19 staff members 20-27 staff

286

E-Print Network 3.0 - adolescent supplement ncs-a Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Male Mandrills (Mandrillus... -CNRS, Montpellier, France 2 UGENET, CIRMF, Franceville, Gabon The adolescent period in male mandrills extends from... the age of 10 years), and is...

287

elirden2012 elirdbrevemente  

E-Print Network (OSTI)

presencia centro en el ultramar tropical Haití Líbano Chad T�NEZ Gabon Camboya TAILANDIA 1-9 agente(s) 10

288

E-Print Network 3.0 - aspects virologiques des Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Collection: Mathematics 10 L'IRD en Afrique centrale Cameroun -Centrafrique -Congo -Gabon -Guine quatoriale -R.D. Congo Summary: dveloppe l'aspect pluri- disciplinaire...

289

Protection et valorisation de trois milieux fluvio-marins du centre du golfe de Guinée (estuaires du Gabon, du río Muni et baie de la Mondah) : biodiversité et développement durable.  

E-Print Network (OSTI)

??La frange équatoriale du golfe de Guinée représente une énorme richesse faunistique, floristique et écosystémique. Contrairement à celles d'Afrique de l'Ouest et d'Asie, ces richesses… (more)

Bingono Meba, Emmanuel-Nances

2004-01-01T23:59:59.000Z

290

Le développement durable et le secteur des pêches et de l'aquaculture au Gabon : une étude de la gestion durable des ressources halieutiques et leur écosystème dans les provinces de l'Estuaire et de l'Ogooué Maritime.  

E-Print Network (OSTI)

??À l'échelle mondiale, la pêche maritime est caractérisée par une surexploitation des ressources disponibles dans les différentes pêcheries ayant des impacts très importants sur l'écosystème… (more)

Ekouala, Landry

2013-01-01T23:59:59.000Z

291

U-Pb single zircon grain dating of Present fluvial and Cenozoic aeolian sediments from Gabon: consequences on sediment provenance, reworking, and erosion processes on the equatorial West African margin  

Science Journals Connector (OSTI)

...Ngounie rivers as main tributaries. At the city of Lambarene, where the river enters...mum and the laser was operated using an energy density of 15J/cm2 at a frequency of...proportion of a younger component. These independant sets of data support the views that recent...

Michel Seranne; Olivier Bruguier; Mathieu Moussavou

292

Actions prioritaires de conservation marine Darwin Darwin Priority Marine Conservation Actions  

E-Print Network (OSTI)

fishing pressure. Key marine biodiversity includes major fishing resources and globally important marine been co-ordinating a UK government funded, Darwin Initiative project for marine biodiversity of Gabon actions needed for the conservation of marine biodiversity in Gabon under the five strategies suggested

Exeter, University of

293

Afring News 34(1) 31 Report on the 2003-2004 ringing year  

E-Print Network (OSTI)

African countries, namely Sao Tome, Equatorial Guinea, Zambia, An- gola, Seychelles and Gabon. The top Swaziland 96 21 2 48 Gabon 89 24 1 89 Afring News (2005) 34: 31-33 #12;32 2005 Table 4. Top 20 ringed

de Villiers, Marienne

294

Discriminating between village and commercial hunting of apes Hjalmar S. Kuehl a,*, Christian Nzeingui b  

E-Print Network (OSTI)

Fund for Nature, WWF Gamba, P.O. Box 1944, Libreville, Gabon a r t i c l e i n f o Article history in the mountainous Mou- kalaba Doudou National Park, Gabon, to evaluate whether potential population gradients would

295

LA CATGORISATION DES PATRIMOINES MUSICAUX DANS LES SOCITS DE TRADITION ORALE  

E-Print Network (OSTI)

Gabon). Ces travaux reposent sur une période de plus de trente ans d'enquêtes, de collectes et d), tikar (N. Fernando et F. Marandola); Gabon : teke (S. Le Bomin); Sénégal : wolof (L. Penna). halshs

Boyer, Edmond

296

Vous souhaitez tudier au Canada? Deux possibilits s'offrent vous  

E-Print Network (OSTI)

1er cycle : Baccalauréat ou Baccalauréat technique Gabon Canada Diplôme d'entrée à l'Université de Gabon. Où s'informer? Pour choisir votre filière, visitez admission.umontreal.ca. Pour poser une

Charette, André

297

Dcembre 2010 Chikungunya  

E-Print Network (OSTI)

. Grâce à des analyses sanguines effectuées lors de l'épidémie de 2007 au Gabon, des chercheurs de l Gabon, a en effet révélé la présence, au cours des quat

298

Social Compass 48 (3), 2001, 315-331 D'un syncrtisme l'autre  

E-Print Network (OSTI)

guérison divine à des sujets africains du Gabon d'aujourd'hui : le prophétisme initiatique et l luttes symboliques pour la légitimité. Le Bwiti des Fang du Gabon parce qu'il se donne comme une reprise

Boyer, Edmond

299

Hautes tudes en Biodiversit et gestion de l'environnement  

E-Print Network (OSTI)

://www.ephe.sorbonne.fr/formations/ · mention de master Biologie, santé, écologie ·** en partenariat avec le CIRMF, l'IRD, l'IRET, Parcs Gabon tropicale ECOTROP, stage au Gabon (Parc national de la Lopé) avec parité étudiants-chercheurs. Deux semaines

300

IRD/T. Jaffr IRD/M.Dukhan  

E-Print Network (OSTI)

GUYANE ArgentineArgentine Gabon Zimbawe Sri LankaSri Lanka BRÃ?SIL ColombieColombie Togo Inde SyrieSyrie Gabon Togo Ã?thiopie Guadeloupe Zimbawe L'IRD DANS LE MONDE #12;RAPPORT D'ACTIVITÃ? Ã?DITORIAL 2004, date

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

SERGE BAHUCHET Les Pygmes d'aujourd'hui  

E-Print Network (OSTI)

Belemboke (Coudrin) et documents personnels (missions de 1972 à 1985) ; - Congo: rapport de mission Orstom, nord du Gabon et nord-ouest du Congo), BaAka et BaMbènzèlè (République centrafricaine et nord du Congo), BaBongo ou Akoa (Gabon et ouest du Congo). Ces derniers groupes étaient connus sous le terme

Paris-Sud XI, Université de

302

Kode Dansk English AD Andorra ANDORRA  

E-Print Network (OSTI)

Mikronesien MICRONESIA, FEDERATED STATES OF FO Færøerne FAROE ISLANDS FR Frankrig FRANCE GA Gabon GABON GBKode Dansk English AD Andorra ANDORRA AE Forenede Arabiske Emirater UNITED ARAB EMIRATES AF BERMUDA BN Brunei Darussalam BRUNEI DARUSSALAM BO Bolivia BOLIVIA, PLURINATIONAL STATE OF BQ Bonaire, Sint

303

HQ Human Resources - Points of Contact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HQ Human Resources - Points of Contact HQ Human Resources - Points of Contact HQ Human Resources - Points of Contact Name Division Phone Room # Email Address ARPA-E Burkley, Tania Executive Resources 202-586-7657 4E-084 Tania.Burkley@hq.doe.gov Powell, NiCole HR Operations 202-287-5252 4E-084 Nicole.Powell@hq.doe.gov Adams, Shelia HR Operations (Benefits,Retirement, OWCP) 202-586-3097 GM-169 Sheila.Adams@hq.doe.gov Peggy Robinson Labor and Employee Relations 202-586-2591 8E-092 Peggy.Robinson@hq.doe.gov ARRA Burkey Tania Executive Resources 202-586-7657 4E-084 Tania.Burkley@hq.doe.gov Coates, Ina HR Operations 202-586-6618 4E-084 Ina.Coates@hq.doe.gov Hawkins, Renee HR Operations (Benefits,Retirement, OWCP) 202-586-2163 GM-169 Renee.Hawkins@hq.doe.gov BPA Matthews-Williams, Kimberly Executive Resources 202-586-9844 4E-084 Kimberly.Matthews-Williams@hq.doe.gov

304

Vulnerabilidade socioeconmica ocorrncia de eventos extremos: proposta metodolgica.  

E-Print Network (OSTI)

- UFSM Av. Roraima, nº 1000 ­ 97105-900 ­ Santa Maria ­ RS, Brasil mariele.furlan@yahoo.com.br 2 Campus Brasil/CRECTEALC Caixa Postal 5021 - 97105-970 - Santa Maria - RS, Brasil lacruz@dsr.inpe.br 3 Instituto Nacional de Pesquisas Espaciais - INPE/CRS Caixa Postal 5021 - 97105-970 - Santa Maria - RS, Brasil tania

305

Israel Journal of Chemistry Vol. 41 2001 pp. 105110 *Authortowhomcorrespondenceshouldbeaddressed.E-mail  

E-Print Network (OSTI)

combustion,2,3 it is not clear if the PAH-rich coal- derived particles identified in the sediments carriedIsrael Journal of Chemistry Vol. 41 2001 pp. 105­110 *Authortowhomcorrespondenceshouldbeaddressed Distributions on Harbor Sediments and Coals J. SEB GILLETTE,a UPAL GHOSH,b TANIA B. MAHAJAN,a RICHARD N. ZARE

Zare, Richard N.

306

More Schooling and More Effects of a Three-Year Conditional  

E-Print Network (OSTI)

in Nicaragua after 10 Years Tania Barham, Karen Macours, John A. Maluccio Social Protection and Health Division. Social Protection and Health Division. V. Series. IDB-WP-432 2013] #12; 1 Abstract CCT programs haveIDB.WegratefullyacknowledgegenerousfinancialsupportfromtheInterAmericanDevelopment Bank(IDB),InitiativeforInternationalImpactEvaluation(3ie:OW2.216),andNationalScienceFoundation (SES

Spino, Claude

307

CSIRO PUBLISHING International Journal of Wildland Fire 2008, 17, 742753 www.publish.csiro.au/journals/ijwf  

E-Print Network (OSTI)

SchoennagelA,C, Erica A. H. SmithwickB and Monica G. TurnerB ADeparment of Geography, University of Colorado. CCorresponding author. Email: Tania.Schoennagel@colorado.edu Abstract. We characterised the remarkable how these natural wildfires created patterns at multiple spatial scales (i.e. extents) and suggest

Turner, Monica G.

308

FORMATION OF CARBON-CARBON BONDS IN THE PHOTOCHEMICAL ALKYLATION OF POLYCYCLIC AROMATIC  

E-Print Network (OSTI)

HYDROCARBONS TANIA B. MAHAJAN1, JAMIE E. ELSILA1, DAVID W. DEAMER2 and RICHARD N. ZARE1 1 Department July 2002) Abstract. The reaction of polycyclic aromatic hydrocarbons (PAHs) with alkanes was examined films in contact with simulated ocean water, and in matrices simulating ISM conditions. Photoalkylation

Zare, Richard N.

309

Structure and downstream evolution of the Agulhas Current system during a quasi-synoptic survey in FebruaryMarch 2003  

E-Print Network (OSTI)

in February­March 2003 Ta^nia G. D. Casal,1 Lisa M. Beal,2 Rick Lumpkin,3 and William E. Johns2 Received 5 this latitude range. Citation: Casal, T. G. D., L. M. Beal, R. Lumpkin, and W. E. Johns (2009), Structure Undercurrent, a potentially important route for ventilation of the deep Indian Ocean [Beal and Bryden, 1997

310

Energy Efficiency and Conservation Block Grant Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TN-County-Maury TN-County-Maury Location: County Maury TN American Recovery and Reinvestment Act: Proposed Action or Project Description 1) Replace old solid waste baler, 2) energy efficiency upgrades of windows, insulation, sensors, and other conservation measures at county facilities Conditions: None Categorical Exclusion(s) Applied: B2.5, B5.1 *-For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, see Subpart D of 10 CFR10 21 This action would not: threaten a violation of applicable statutory, regulatory, or permit requirements for environment, safety, and health, including DOE and/or Executive Orders; require siting, construction, or major expansion of waste storage, disposal, recovery, or treatment facilities, but may include such categorically excluded facilities; disturb hazardous substances, pollutants, contaminants, or

311

Cahiers d'Etudes Africaines, n183, 2006, pp.493-512 Julien Bonhomme  

E-Print Network (OSTI)

, le voici donc, le grand Esprit, avec ses richesses inouïes ! »* Au Gabon, la figure de l'homme blanc de dix-sept ans, arrive pour la première fois au Gabon afin d'y rejoindre son père qui travaille dans récolter quelques fonds, il est de nouveau au Gabon au début de l'année 1856. Ses premières expéditions le

Paris-Sud XI, Université de

312

Tropical hardwood markets Genve le 8 octobre 2003  

E-Print Network (OSTI)

% 14% 12% 6% 4% 3% 3% Indonésie Brésil Malaisie Autres / Others Inde Thaïlande Equateur Gabon Myanmar in the production of tropical logs 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Gabon Côte d'Ivoire Cameroun% 17% 17% 12% 8% 5% 6% Malaisie (4.3 M m3) Gabon (2 M m3) Indonésie (2 M m3) PNG (1.5 M m3) Liberia (0

313

Adresse des auteurs en 2013 : Annette Hladik  

E-Print Network (OSTI)

végétaux de la forêt dense. Résultat des tests préliminaires effectués au Gabon. La Terre et la Vie , 31 a porté sur 382 espèces de Phanérogames de la région :\\"ord-Est du Gabon, dont les feuilles ont été laboratoire de Primato- Jogic cl d'Ecologie Equatoriale de Makokou, au Gabon (C.N.R.S.), au cours d

Boyer, Edmond

314

Supplement 21, Part 7, Parasite-Subject Catalogue, Hosts  

E-Print Network (OSTI)

Caligus malabaricus: Torres Strait off Northern Australia Caligus sp. A: Sierra Leone; Gabon Caligodes laciniatus: Florida; Caribbean Sea; off Mississippi coast; off Surinam; off northern Brazil; Cape Verde Islands; Gulf of Guinea; off Sierra Leone...

Zidar, Judith A; Shaw, Judith H.; Hanfman, Deborah T.; Kirby, Margie D.; Rayburn, Jane D.; Edwards, Shirley J.; Hood, Martha W.

1978-01-01T23:59:59.000Z

315

TABLE50.CHP:Corel VENTURA  

Gasoline and Diesel Fuel Update (EIA)

37 34 34 Gabon ... 137 0 0 0 0 0 0 (s) (s) (s) 137 Germany, FR ... 0 (s) (s) 0 (s) (s) -3 (s) (s) -3 -3 Greece...

316

TABLE21.CHP:Corel VENTURA  

Annual Energy Outlook 2012 (EIA)

296 250 0 0 0 0 0 Gabon ... 8,597 0 0 0 0 0 0 0 0 0 Germany, FR ... 0 0 0 0 0 0 0 440 0 0 Guatemala...

317

TABLE29.CHP:Corel VENTURA  

Gasoline and Diesel Fuel Update (EIA)

(s) 17 14 14 Gabon ... 277 0 0 0 0 0 0 0 0 0 277 Germany, FR ... 0 0 0 0 (s) 14 (s) (s) (s) 13 13 Greece...

318

TABLE49.CHP:Corel VENTURA  

Annual Energy Outlook 2012 (EIA)

29 23 23 Gabon ... 117 0 0 0 0 0 0 (s) 0 (s) 117 Germany, FR ... 0 (s) (s) 0 0 (s) (s) (s) (s) (s) (s) Greece...

319

TABLE24.CHP:Corel VENTURA  

Annual Energy Outlook 2012 (EIA)

69 0 0 0 0 0 0 0 Gabon ... 3,025 0 0 0 0 0 0 0 0 0 Germany, FR ... 0 0 0 0 0 0 0 440 0 0 Guatemala...

320

Hormonal control of sex differences in the electric organ discharge (EOD) of mormyrid fishes  

Science Journals Connector (OSTI)

Field studies have demonstrated that several species of mormyrid fish from Gabon, West Africa have a sex difference in the pulse-like waveform of their Electric Organ Discharge (EOD). Administration of androgen h...

Andrew H. Bass; Carl D. Hopkins

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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321

Comit de suivi du 8 fvrier 2012  

E-Print Network (OSTI)

, prestataire notifié Fonds Gabon, 1000 bandes numérisées · Numérisation films et vidéos Appel d'offre passé

322

E-Print Network 3.0 - aktivti graudi kvieu Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Data from Nuclear and Mitochondrial Summary: Nycteridae : Nycteris graudis (TK 2 1558 )-Gabon: Estuarie Province, 2 km SE Cape 12;956 Van Den Bussche et Source: Baker, Robert J. -...

323

Hanford Site Treating Record Amount of Contaminated Groundwater |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Treating Record Amount of Contaminated Groundwater Treating Record Amount of Contaminated Groundwater Hanford Site Treating Record Amount of Contaminated Groundwater July 15, 2013 - 12:00pm Addthis Media Contacts Geoff Tyree, DOE (509) 376-4171 Geoffrey.Tyree@rl.doe.gov Tania Reyes, CHPRC (509) 373-6828 Tania_Reyes@rl.gov Department of Energy goal for fiscal year 2013 met early Note: Photos and graphics are available for downloading on our website link: http://ow.ly/mO5cT RICHLAND, Wash. - U.S. Department of Energy (DOE) contractor CH2M HILL Plateau Remediation Company (CH2M HILL) has exceeded this year's goal for treating 1.4 billion gallons of contaminated groundwater at the Hanford Site in Washington state. "In the last few years, DOE built three new groundwater treatment facilities, and now we are seeing the results," said Briant Charboneau,

324

Hanford Site Treating Record Amount of Contaminated Groundwater |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hanford Site Treating Record Amount of Contaminated Groundwater Hanford Site Treating Record Amount of Contaminated Groundwater Hanford Site Treating Record Amount of Contaminated Groundwater July 15, 2013 - 12:00pm Addthis Media Contacts Geoff Tyree, DOE (509) 376-4171 Geoffrey.Tyree@rl.doe.gov Tania Reyes, CHPRC (509) 373-6828 Tania_Reyes@rl.gov Department of Energy goal for fiscal year 2013 met early Note: Photos and graphics are available for downloading on our website link: http://ow.ly/mO5cT RICHLAND, Wash. - U.S. Department of Energy (DOE) contractor CH2M HILL Plateau Remediation Company (CH2M HILL) has exceeded this year's goal for treating 1.4 billion gallons of contaminated groundwater at the Hanford Site in Washington state. "In the last few years, DOE built three new groundwater treatment facilities, and now we are seeing the results," said Briant Charboneau,

325

Synthesis of Large Dendrimers with the Dimensions of Small Viruses Jongdoo Lim,  

E-Print Network (OSTI)

Synthesis of Large Dendrimers with the Dimensions of Small Viruses Jongdoo Lim, Mauri Kostiainen of growth per synthetic cycle. Fidelity in the synthesis is supported by evidence from NMR spectroscopy of this length scale are a convergent point for both top-down and bottom-up synthesis. Existing organic building

Annunziata, Onofrio

326

FACULTY SENATE MEETING December 11, 2012  

E-Print Network (OSTI)

. The remaining programs that need to be revised will be at least through college councils yet this semester. All, Gene Gutman, Carol Johnson, Glenda Jones, Virginia Lea, Amanda Little, Kate Maury, Bob Nelson, Marlann have more independent course instruction, graduate course sections, and lower class sizes

Wu, Mingshen

327

Determining the Efficacy of Multi-Parameter Tactons in the Presence of Real-world and Simulated Audio Distractors  

Science Journals Connector (OSTI)

......Bouyer G., Maury V., Kheddar A. Feeling what you hear: auditory signals can modulate tactile tap perception. Exp. Brain Res. (2005) 162:172-180. Brewster S.A. , Brown L.M. Tactons: Structured Tactile Messages for Non-visual Information......

Huimin Qian; Ravi Kuber; Andrew Sears; Elizabeth Stanwyck

2014-11-01T23:59:59.000Z

328

Using Transcriptomics To Improve Butanol Tolerance of Synechocystis sp. Strain PCC 6803  

Science Journals Connector (OSTI)

...the transmembrane electrochemical gradient and hence of the proton-motive force. Reactive oxygen species (ROS) may accumulate...in bacteria. Arch. Biochem. Biophys. 373 :1-6. 47. Giner-Lamia, J , L Lopez-Maury, JC Reyes and FJ Florencio...

Josefine Anfelt; Björn Hallström; Jens Nielsen; Mathias Uhlén; Elton P. Hudson

2013-09-20T23:59:59.000Z

329

1Hadley Centre for Climate Prediction and Research Workshop on Advances in the Use of  

E-Print Network (OSTI)

1Hadley Centre for Climate Prediction and Research Workshop on Advances in the Use of Historical Marine Climate Data Boulder, CO, USA, Jan 29-Feb1 2002 Workshop Goals #12;2Hadley Centre for Climate Prediction and Research Matthew F. Maury about 1853 #12;3Hadley Centre for Climate Prediction and Research

330

Politique étrangère et sécurité nationale d'un petit État : analyse de l'action du Gabon pour la paix et la sécurité en Afrique Centrale, une politique extérieure au service de la construction et de la préservation de l'intérieur.  

E-Print Network (OSTI)

??L’Afrique est la région du monde, dans laquelle, existe le plus grand nombre de crises armées sanglantes. Depuis les indépendances, cette région n’a jamais véritablement… (more)

Mvé Ebang, Bruno

2014-01-01T23:59:59.000Z

331

Categorical Exclusion Determinations: American Recovery and Reinvestment  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6, 2010 6, 2010 CX-003271: Categorical Exclusion Determination Texas-City-Missouri City CX(s) Applied: A1, A9, A11, B1.32, B2.5, B5.1 Date: 07/26/2010 Location(s): Missouri City, Texas Office(s): Energy Efficiency and Renewable Energy July 26, 2010 CX-003270: Categorical Exclusion Determination Tennessee-County-Maury CX(s) Applied: B2.5, B5.1 Date: 07/26/2010 Location(s): Maury County, Tennessee Office(s): Energy Efficiency and Renewable Energy July 26, 2010 CX-003269: Categorical Exclusion Determination South Dakota-Tribe-Oglala Sioux Tribe of the Pine Ridge Reservation, South Dakota CX(s) Applied: A9, B5.1 Date: 07/26/2010 Location(s): South Dakota Office(s): Energy Efficiency and Renewable Energy July 26, 2010 CX-003266: Categorical Exclusion Determination Nevada-County-Washoe

332

EPA Environmental Impact Statements; Notice of Availability (Orlando Gasification Project Final EIS) (01/26/07)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 Federal Register 6 Federal Register / Vol. 72, No. 17 / Friday, January 26, 2007 / Notices Gallatin, Park, Meagher, Sweetgrass and Carbon Counties, MT Summary: EPA continues to express environmental concerns about potential effects to water quality, fisheries, wildlife and other resources from roads and motorized uses. EIS No. 20060529, ERP No. F-AFS- L65517-0R, Maury Mountains Allotment Management Plan, To Implement or Eliminate Livestock Grazing in Six Allotments in the Maury Mountains of the Ochoco National Forest, Prineville, OR Summary: No formal comment letter was sent to the preparing agency. Dated: January 23, 2007. Robert W. Hargrove, Director, NEPA Compliance Division, Office of Federal Activities. [FR Doc. E7-1236 Filed 1-25-07; 8:45 am] BILLING CODE 6560-50-P

333

An assessment of operations of oil-exporting countries in terms of energy consumption and carbon dioxide emissions  

Science Journals Connector (OSTI)

Energy consumption and carbon dioxide emissions from 16 oil-exporting countries are studied using Data Envelopment Analysis using indicators representing economic growth, energy consumption and emissions. The analysis for 1996 shows that Norway, Gabon and Nigeria are efficient and that Russia is inefficient. Malmquist Productivity Index analysis shows that there is progress in achieving higher values of GDP and non-fossil fuel consumption and in achieving lower values of fossil fuel consumption and carbon emissions in the year 1996 when compared with 1992 for Norway, Russia, Mexico, Algeria, Libya, Gabon and Oman.

Ramakrishnan Ramanathan

2008-01-01T23:59:59.000Z

334

New angles on South Atlantic opening  

Science Journals Connector (OSTI)

......boundaries are not isochrons. Oil industry and academic data have...South Atlantic FZs south of the Marathon and Mercurius FZs, which misfitting...basins of Gabon-geology and oil systems, in Divergent/passive...Gateway (ODP Leg 159), in The oil and gas habitats of the South......

Graeme Eagles

2007-01-01T23:59:59.000Z

335

untitled  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 0 0 19 609 628 Gabon 2,337 0 0 0 0 0 0 Germany 0 0 0 395 0 234 234 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 0 38 160...

336

untitled  

Annual Energy Outlook 2012 (EIA)

0 275 275 Finland 0 0 0 0 0 275 275 France 0 0 198 4,191 0 0 0 Gabon 8,907 0 0 0 0 0 0 Germany 0 0 0 6,260 0 0 0 Guatemala 3,885 0 0 0 0 0 0 India 0 0 0 932 0 0 0 Italy 0 0 126 484...

337

PSA Vol 1 Tables Revised Ver 2 Print.xls  

Gasoline and Diesel Fuel Update (EIA)

275 275 Finland 0 0 49 0 0 275 275 France 0 0 262 5,167 0 0 0 Gabon 13,260 0 0 0 0 0 0 Germany 0 0 0 8,816 0 0 0 Guatemala 3,885 0 0 0 0 0 0 India 0 0 0 2,201 0 0 0 Italy 0 0 126...

338

untitled  

Gasoline and Diesel Fuel Update (EIA)

275 275 Finland 0 0 0 0 0 275 275 France 0 0 262 4,775 0 0 0 Gabon 12,963 0 0 0 0 0 0 Germany 0 0 0 8,816 0 0 0 Guatemala 3,885 0 0 0 0 0 0 India 0 0 0 1,970 0 0 0 Italy 0 0 126...

339

untitled  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 9 9 Finland 0 0 0 0 0 0 0 France 0 0 1 21 0 12 12 Gabon 192 0 0 0 0 0 0 Germany 0 0 0 51 0 11 11 Guatemala 0 0 -2 0 0 0 0 Honduras 0 0 -1 0 0 -3 -3 India 0 0 0 0 0 0...

340

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 3 0 2 2 Finland 0 0 0 0 0 4 4 France 0 0 1 15 2 14 16 Gabon 127 0 0 0 0 0 0 Germany 0 0 0 40 0 12 12 Guatemala 11 0 -2 0 0 -1 -1 Honduras 0 0 -1 0 0 -3 -3 India 0 0 0 8...

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


341

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 38 584 19 609 628 Gabon 4,295 0 0 0 0 0 0 Germany 0 0 0 1,164 0 234 234 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 0 38...

342

untitled  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 0 258 0 346 346 Gabon 3,791 0 0 0 0 0 0 Germany 0 0 0 388 0 333 333 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 138 0 631...

343

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

Annual Energy Outlook 2012 (EIA)

716 501 615 612 1993-2014 Gabon 650 649 32 1993-2014 Georgia, Republic of 1995-2010 Germany 107 35 14 24 8 125 1993-2014 Ghana 1995-2012 Gibralter 2012-2012 Greece 12 28 28...

344

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 2 0 2 2 Finland 0 0 0 0 0 5 5 France 0 0 1 18 2 11 13 Gabon 133 0 0 0 0 0 0 Germany 0 0 0 38 0 11 11 Guatemala 14 0 -2 0 0 -1 -1 Honduras 0 0 -1 0 0 -3 -3 India 0 0 0 3...

345

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

Annual Energy Outlook 2012 (EIA)

Finland 12 58 99 1995-2013 France 534 493 156 1995-2013 Gabon 1,523 550 1995-2013 Germany 140 950 4 5 2 178 1995-2013 Greece 1995-2003 Guatemala 118 2005-2012 Guinea 1995-2002...

346

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 275 275 Finland 0 0 0 0 0 0 0 France 0 0 40 641 0 346 346 Gabon 5,774 0 0 0 0 0 0 Germany 0 0 0 1,530 0 333 333 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 459 0...

347

PSA Vol 1 Tables Revised Ver 2 Print.xls  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 3 0 2 2 Finland 0 0 0 0 0 4 4 France -1 0 1 16 2 13 15 Gabon 127 0 0 0 0 0 0 Germany 0 0 0 40 0 12 12 Guatemala 11 0 -2 0 0 -1 -1 Honduras 0 0 -1 0 0 -3 -3 India 0 0 0 8...

348

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 1 19 1 20 20 Gabon 139 0 0 0 0 0 0 Germany 0 0 0 38 0 8 8 Guatemala 0 0 -5 0 0 -1 -1 Honduras 0 0 -1 0 0 -3 -3 India 0 0 0 0 0 0...

349

Non-linear electrodynamics and the variation of the fine structure constant  

Science Journals Connector (OSTI)

......modification of the standard model of electroweak...109 yr ago in Oklo Uranium Mine in Gabon...also see the recent review by Garcia-Berro...communication, we plan to address each...propagates along standard null geodesics...distance computed in a standard fashion in the context......

Jean Paul Mbelek; Herman J. Mosquera Cuesta

2008-09-01T23:59:59.000Z

350

2005 The Society for the Study of Evolution. All rights reserved. Evolution, 59(2), 2005, pp. 324343  

E-Print Network (OSTI)

that are morphologically cryptic in sympatry but produce alternate types of electric organ discharge (EOD). Other species in a large group containing a clade of these morphologically cryptic EOD types produce stereotyped, species-typical EOD waveforms thought to function in mate recognition. First, for six populations from Gabon

Hopkins, Carl D.

351

1988 saw major efforts to spur foreign interest  

SciTech Connect

This article discusses how Africa's large producers are offering incentives to attract exploration. Egypt is pushing new gas development, while Nigeria announced reduced taxes to lure foreign operators. Gabon has rejuvenated its production with discovery of a large new oil field. Libya is offering liberal concession terms, though the status of U.S. firms is uncertain.

Bell, G.D. (Gustavson Associates, Inc., Boulder, CO (USA))

1989-08-01T23:59:59.000Z

352

Potential curbed by lack of funds  

SciTech Connect

The author reviews the oil market in Africa. Some of the highlights are: Nigeria restructures NNPC to make it competitive, offers new terms; Libya redraws its concession terms in hopes of attracting more operators; New onshore finds may keep Gabon from becoming a producer in decline; and South Arica has struck what may be commercial oil south of Mossel Bay.

Gustavson

1988-08-01T23:59:59.000Z

353

The nonlinear dynamics of the Oklo natural reactor  

SciTech Connect

An analysis of the Oklo natural reactor, a self-sustaining and self-regulating critical assembly that existed some 2 billion years ago in Gabon, Africa, is presented. Nonlinear continuous dif ferential and nonlinear discrete iterative formulations are established and selected parameter characterizations identified. Conceivable power oscillations are calculated and discussed. Some implications of nonlinear mappings for nuclear simulation are suggested.

Bilanovic, Z.; Harms, A.A.

1985-11-01T23:59:59.000Z

354

Upper-mantle anisotropy beneath the Cameroon Volcanic Line and Congo Craton from shear wave splitting measurements  

Science Journals Connector (OSTI)

......material from a large rising thermal anomaly beneath southern Ethiopia...Central Africa from Angola to Sudan. In the Archaean, the Gabon-Cameroon...attributed to convection driven by thermal gradients between the asthenosphere...upper-mantle LPO due to the thermal gradient at the edge of the......

Franklin W. Koch; Douglas A. Wiens; Andrew A. Nyblade; Patrick J. Shore; Rigobert Tibi; B. Ateba; C.T. Tabod; J. M. Nnange

2012-07-01T23:59:59.000Z

355

Forestry Driver Mapping Project  

E-Print Network (OSTI)

· Borneo · Congo Basin1 · Mekong Region2 · Southern Chile. The project also assesses the role of China Report 1 The Congo Basin includes the nations of Cameroon, the Central African Republic, the Democratic Republic of the Congo, Equatorial Guinea, Gabon and the Republic of the Congo. 2 The Mekong Region includes

356

Objectifs scientifiques du second programme de Coopration pour la Recherche Universitaire et Scientifique  

E-Print Network (OSTI)

, Cameroun, Cap-Vert, Centrafrique, Comores, Congo, Côte d'Ivoire, Djibouti, Erythrée, Ethiopie, Gabon, Mauritanie, Mozambique, Namibie, Niger, Nigéria, Ouganda, République démocratique du Congo, Rwanda, Sao Tomé

357

Afrique de l'Ouest et centrale  

E-Print Network (OSTI)

NIGÃ?RIA NIGER TCHAD CAMEROUN RÃ?PUBLIQUE CENTRAFRICAINE RÃ?PUBLIQUE DÃ?MOCRATIQUE DU CONGO GUINÃ?E Ã?QUATORIALE CONGO GABON BÃ?NIN GHANACÃ?TE D'IVOIRE MALI BURKINA FASO MAURITANIE GUINÃ?E GUINÃ?E-BISSAU GAMBIE SÃ?NÃ?GAL

358

Fermilab Steering Group Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Steering Group Steering Group Eugene Beier University of Pennsylvania Joel Butler Fermi National Accelerator Laboratory Sally Dawson Brookhaven National Laboratory Helen Edwards Fermi National Accelerator Laboratory Thomas Himel Stanford Linear Accelerator Center Stephen Holmes Fermi National Accelerator Laboratory Young-Kee Kim, Chair Fermi National Accelerator Laboratory/ University of Chicago Andrew Lankford University of California, Irvine David McGinnis Fermi National Accelerator Laboratory Sergei Nagaitsev Fermi National Accelerator Laboratory Tor Raubenheimer Stanford Linear Accelerator Center Vladimir Shiltsev Fermi National Accelerator Laboratory Maury Tigner Cornell University Hendrik Weerts Argonne National Laboratory Contributors Neutrino Physics Group Eugene Beier University of Pennsylvania

359

West Africa prepares for busy season. [Petroleum exploration in West Africa  

SciTech Connect

Although there has been a decrease in oil prices, activity along coastal West Africa has tended to increase, with emphasis on field development and production. Because of a world-wide surplus of petroleum, Nigeria has had to cut production by more than half and offshore operations have been affected also. Off the coast of Gabon exploration activity has increased with numerous wildcat rigs which are potentially highly productive. Overall production in Gabon has decreased slightly since 1980. The People's Republic of the Congo, on the other hand, has increased productivity due to new successful fields, while in the Angola/Cabinda area new offshore programs are forming. Production and exploration increases are also expected for Ghana, Zaire, Cameroon, and South Africa. (JBF)

Not Available

1982-06-20T23:59:59.000Z

360

Oil and gas developments in central and southern Africa in 1985  

SciTech Connect

Oil industry activity in central and southern Africa appears to have stabilized in the last few years, but some activities (such as field development and exploration acreage acquisition) are still declining. Several countries have advertised open concessions and invited bids. Only in a very few cases have the offers stimulated the interest of oil companies. An exceptional increase in exploration concession acquisition took place in the East Africa rift area. Land seismic acquisition increased mostly in Nigeria, but 1985 marine seismic activity was half the 1984 activity. Exploration drilling was higher than in 1984, but development drilling was considerably lower. Significant discoveries were made in Gabon and Angola. Production increased 8%, with the largest and most significant increase in Angola, followed by Gabon. The production share of non-OPEC versus OPEC countries remained stable at 33%. 33 figures, 6 tables.

Petracca, A.N.

1986-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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361

Microsoft PowerPoint - 2013_2-22_Waste_Management_Symposium_-_T._Smith_ARI_Creating_a_2020_DOE  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Revitalization Initiative Revitalization Initiative Goals, Task Force, and Deliverables Tania Smith, DOE-EM ARI Task Force Leader February 2013 ARI Mission The Asset Revitalization Initiative (ARI) is a U.S. Department of Energy (DOE)-wide effort to advance the beneficial reuse of its unique and diverse mix of assets, including land, facilities, infrastructure, equipment, technologies, natural resources, and a highly skilled workforce. ARI promotes a more efficient business environment to encourage collaboration between public and private resources. This will maximize benefits to achieve energy and environmental goals, as well as to stimulate and diversify regional economies. 4/4/2013 2 ARI Vision for the DOE Complex * Site operations are conducted in a sustainable manner, facilities and transit are powered by clean

362

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 85 1,383 1,468 France 0 0 262 5,567 617 5,102 5,719 Gabon 46,515 0 0 0 0 0 0 Germany 0 0 0 14,420 72 4,481 4,553 Guatemala 3,885 0 0 0 0 0 0 India 0 0 0 2,767 98 693 791...

363

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 85 1,108 1,193 France 0 0 0 792 617 5,102 5,719 Gabon 33,255 0 0 0 0 0 0 Germany 0 0 0 5,406 72 4,481 4,553 Guatemala 0 0 0 0 0 0 0 India 0 0 0 797 98 693 791 Italy 0...

364

untitled  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 275 275 Finland 0 0 0 0 0 0 0 France 0 0 40 383 0 0 0 Gabon 1,983 0 0 0 0 0 0 Germany 0 0 0 1,142 0 0 0 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 226 0 11 11...

365

untitled  

Gasoline and Diesel Fuel Update (EIA)

0 Estonia 0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 0 0 0 0 0 Gabon 0 0 0 0 0 0 0 Germany 0 0 0 0 0 0 0 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 0 0 0 0 Korea,...

366

untitled  

Annual Energy Outlook 2012 (EIA)

Estonia 0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 0 0 0 0 0 Gabon 297 0 0 0 0 0 0 Germany 0 0 0 0 0 0 0 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 0 0 0 0 Korea,...

367

PSA Vol 1 Tables Revised Ver 2 Print.xls  

Gasoline and Diesel Fuel Update (EIA)

0 0 49 0 85 1,383 1,468 France 0 0 262 5,939 617 4,848 5,465 Gabon 46,515 0 0 0 0 0 0 Germany 0 0 0 14,420 72 4,481 4,553 Guatemala 3,885 0 0 0 0 0 0 India 0 0 0 2,998 98 693 791...

368

untitled  

Gasoline and Diesel Fuel Update (EIA)

Finland 0 0 0 0 85 973 1,058 France 0 0 0 792 449 3,074 3,523 Gabon 27,137 0 0 0 0 0 0 Germany 0 0 0 3,946 0 3,006 3,006 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 98 238 336 Italy 0 0...

369

untitled  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0 85 1,248 1,333 France 0 0 198 4,983 449 3,074 3,523 Gabon 36,341 0 0 0 0 0 0 Germany 0 0 0 10,404 0 3,006 3,006 Guatemala 3,885 0 0 0 0 0 0 India 0 0 0 932 98 238 336...

370

untitled  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 38 584 0 0 0 Gabon 1,958 0 0 0 0 0 0 Germany 0 0 0 769 0 0 0 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 0 0 0 0...

371

PSA Vol 1 Tables Revised Ver 2 Print.xls  

Gasoline and Diesel Fuel Update (EIA)

0 Estonia 0 0 0 0 0 0 0 Finland 0 0 0 0 0 0 0 France 0 0 0 0 0 0 0 Gabon 0 0 0 0 0 0 0 Germany 0 0 0 0 0 0 0 Guatemala 0 0 0 0 0 0 0 India 0 0 0 0 0 0 0 Italy 0 0 0 0 0 0 0 Korea,...

372

PSA Vol 1 Tables Revised Ver 2 Print.xls  

Annual Energy Outlook 2012 (EIA)

0 0 0 0 85 1,108 1,193 France 0 0 0 772 617 4,848 5,465 Gabon 33,255 0 0 0 0 0 0 Germany 0 0 0 5,406 72 4,481 4,553 Guatemala 0 0 0 0 0 0 0 India 0 0 0 797 98 693 791 Italy 0...

373

Africa: Prosperous times  

SciTech Connect

Political instability and corruption is the rule, rather than the exception, in Africa`s main producing regions, but exploration and production prospects there are bright and attractive to foreign operators. The paper discusses exploration, drilling, resource development, and production in Nigeria, Libya, Algeria, Egypt, Angola, Congo, Gabon, and Tunisia. The other countries of Africa are briefly mentioned, i.e., Cameroon, Cote D`Ivoire, South Africa, Sudan, Namibia, Equatorial Guinea, Eritrea, Zaire, Mozambique, Ghana, Niger, and Seychelles.

NONE

1996-08-01T23:59:59.000Z

374

Might underground waste repositories blow up?  

SciTech Connect

Some writers have presented possible scenarios in which a subcritical underground deposit of plutonium or other fissile material might be changed into a critical configuration. The underground criticalities that occurred in Gabon some 1.7 billion years ago in deposits of natural uranium is cited. Other scientists assert that it is virtually impossible that such a configuration could develop in an underground repository. The author presents the pros and cons of these views. 5 refs.

Hippel, F. von [Princeton Univ., NJ (United States)

1996-03-01T23:59:59.000Z

375

Divergent/passive margin basins  

SciTech Connect

This book discusses the detailed geology of the four divergent margin basins and establishes a set of analog scenarios which can be used for future petroleum exploration. The divergent margin basins are the Campos basin of Brazil, the Gabon basin, the Niger delta, and the basins of the northwest shelf of Australia. These four petroleum basins present a wide range of stratigraphic sequences and structural styles that represent the diverse evolution of this large and important class of world petroleum basins.

Edwards, J.D. (Shell Oil Company (US)); Santogrossi, P.A. (Shell Offshore Inc. (US))

1989-01-01T23:59:59.000Z

376

Petroleum basin studies  

SciTech Connect

This book reviews the tectonic setting, basin development and history of exploration of a number of selected petroleum provinces located in a variety of settings in the Middle East, North Sea, Nigeria, the Rocky Mountains, Gabon and China. This book illustrates how ideas and models developed in one area may be applied to other regions. Regional reviews and the reassessment of petroleum provinces are presented.

Shannon, P.M. (Univ. College, Dublin (IE)); Naylor, D. (Westland Exploration Ltd., Dublin (IE))

1989-01-01T23:59:59.000Z

377

Nuclear reactors and the nuclear fuel cycle  

SciTech Connect

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

Pearlman, H

1989-11-01T23:59:59.000Z

378

Political economy of African uranium and its role in international markets. Final report. International energy studies program  

SciTech Connect

The history of uranium development in Africa is briefly summarized. Today there are 4 major uranium producing countries in Africa: Gabon, Niger, Namibia, and South Africa. These nations have the possibility of political instability. In addition, the uranium market has undergone a series of radical changes over the past decade. How these African nations have responded to this changing market, and how their roles in the international market relate to domestic political and economic factors are the topics of this report. (DMC)

Lynch, M.C.; Neff, T.L.

1982-03-01T23:59:59.000Z

379

Oil and gas developments in central and southern Africa in 1986  

SciTech Connect

Fewer wells and less footage were drilled in 1986 compared to 1985. Total drilling decreased by 23% as 217 wells were completed compared to 289 in 1985. Footage drilled during 1986 declined by 52%; about 1.3 million ft were drilled compared to about 2.7 million feet in 1985. The success rate for exploration wells of 34% during 1986 is due to considerably higher success rates in Nigeria and Gabon compared to 1985. Significant discoveries were made in Nigeria, Angola, Congo, and Gabon. Seismic acquisition was the major geophysical activity during 1986. Seismic activity (2-D and 3-D) decreased by 12% to about 230 crew-months. Total 2-D seismic kilometers recorded increased by 26% to about 82,000 km due to significant 2-D marine seismic activity in Nigeria and Angola. Surface geology, photogeology, geochemistry, gravimetry, and aeromagnetic surveys decreased compared to 1985. Total oil production in 1986 was 834 million bbl (about 2.2 million BOPD), an increase of 2%, with the most significant increased in Cameroon and Angola. The production share of OPEC countries (Nigeria and Gabon) versus non-OPEC countries increased to 72% in 1986 compared to 67% in 1985. 32 figures, 5 tables.

Hartman, J.B.

1987-10-01T23:59:59.000Z

380

Where have all the flowers gone: deforestation in the Third World  

SciTech Connect

The papers in this issue (and in its companion issue) describe tropical forest destruction and analyze implications at several levels. The contributions are representative of the major regions of the tropical moist forests (TMFs) - Amazonia, Africa, and Indo-Malaysia - and reveal a process whose ramifications will affect all parts and components of the biosphere. The authors and titles of the 13 paprs are: Norman Myers, Deforestation in the Tropics: Who Gains, Who Loses; William M. Denevan, Swiddens and Cattle Versus Forest: The Imminent Demise of the Amazon Rain Forest Reexamined; Stephen G. Bunker, Impact of Deforestation on Peasant Communities in the Medio Amazonas of Brazil; Susanna B. Hecht, Deforestation in the Amazon Basin: Magnitude, Dynamics and Soil-Resource Effects; K. Twum-Barima, Forests of Ghana - A Diminishing Asset; J. Leroy Deval (English abstract), Man and Development in the Forests of Gabon; J. Leroy Deval, L'Homme et Le Developpement de La Foret du Gabon Dans Le Passe; Faustin Legault (English Translation), Reforestation in the Republic of Gabon; Faustin Legault, Le Reboisement en Republique Gabonaise; Peter S. Ashton, Forest Conditions in the Tropics of Asia and the Far East; Gurmit Singh K.S., Destroying Malaysian Forests; Kuswata Kartawinata, Environmental Consequences of Tree Removal from the Forest in Indonesia; and Robert Goodland, Indonesia's Environmental Progress in Economic Development.

Not Available

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Geology of oil fields and future exploration potential in west African Aptian Salt basin  

SciTech Connect

The Aptian Salt basin of west Africa, extends from Equatorial Guinea southward to Angola, contains recoverable reserves estimated at nearly 4 billion BOE, and is current producing 600,000 BOPD. The basin developed as a result of tensional forces between west Africa and South America initiated at the end of the Jurassic. The prospective sedimentary sequences ranged in age from Early Cretaceous (uppermost Jurassic in places) to Holocene and is divided by the Aptian transgressive sand and salt into a pre-salt, nonmarine, syn-rift sequence and a post-salt, marine, post-rift sequence. Both the pre- and post-salt sequences contain several successful exploration plays, the most prolific of which are the Early Cretaceous nonmarine sandstone fields in tilted fault blocks of Gabon and Cabinda; Early Cretaceous carbonate buildups on the margins of basement highs in Cabinda; Early Cretaceous transgressive marine sandstone fields in anticlines draped over basement highs in Gabon; Late Cretaceous shallow marine sandstone and carbonate fields in salt-related structures in the Congo, Zaire, Cabinda, and Angola; Late Cretaceous dolomites in structural/stratigraphic traps in Angola; Late Cretaceous/early Tertiary deltaic/estuarine sandstone traps formed by salt movement in Gabon, Cabinda, and angola; and Tertiary marine turbidite fields in Cabinda and Angola. Despite the exploration success in these trends, much of the basin is under or poorly explored. The major problems for exploration are the poor quality of seismic definition beneath the salt, which makes it difficult to predict pre-salt structure and stratigraphy, and the importance of a stratigraphic element in many of the post-salt traps, also difficult to detect on seismic.

Bignell, R.D.; Edwards, A.D.

1987-05-01T23:59:59.000Z

382

The onshore northeast Brazilian rift basins: An early Neocomian aborted rift system  

SciTech Connect

Early Cretaceous rift basins of northeastern Brazil illustrate key three-dimensional geometries of intracontinental rift systems, controlled mainly by the basement structures. These basins were formed and then abandoned during the early extension associated with the north-south-propagating separation of South America and Africa. During the early Neocomian, extensional deformation jumped from the easternmost basins (group 1: Sergipe Alagoas and Gabon basins; group 2: Reconcavo, Tucano, and Jatoba basins) to the west, forming a series of northeast-trending intracratonic basins (group 3: Araripe, Rio do Peixe, Iguatu, Malhada Vermelha, Lima Campos, and Potiguar basins). The intracratonic basins of groups 2 and 3 consist of asymmetric half-grabens separated by basement highs, transfer faults, and/or accommodation zones. These basins are typically a few tens of kilometers wide and trend northeast-southwest, roughly perpendicular to the main extension direction during the early Neocomian. Preexisting upper crustal weakness zones, like the dominantly northeast-southwest-trending shear zones of the Brazilian orogeny, controlled the development of intracrustal listric normal faults. Internal transverse structures such as transfer faults (Reconcavo basin and onshore Potiguar basin) and accommodation zones (onshore Potiguar basin and Araripe basin) were also controlled by the local basement structural framework. Transverse megafaults and lithostructural associations controlled the three main rift trends. The megashear zones of Pernanbuco (Brazil)-Ngaundere (Africa) apparently behaved like a huge accommodation zone, balancing extensional deformation along the Reconcavo-Jatoba/Sergipe Alagoas-Gabon trends with simultaneous extension along the Araripe-Potiguar trend. The Sergipe Alagoas-Gabon trend and the Potiguar basin represent the site of continued evolution into a marginal open basin following early Neocomian deformation.

Matos, R. (Cornell Univ., Ithaca, NY (USA))

1990-05-01T23:59:59.000Z

383

U.S. and EU Unite to Strengthen Economic Integration and Boost Jobs, Growth  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EU Unite to Strengthen Economic Integration and Boost EU Unite to Strengthen Economic Integration and Boost Jobs, Growth and Competitiveness U.S. and EU Unite to Strengthen Economic Integration and Boost Jobs, Growth and Competitiveness November 9, 2006 - 9:25am Addthis WASHINGTON, DC - Today, the Bush Administration hosted the second informal U.S.-EU economic ministerial meeting to discuss transatlantic economic integration and shared economic challenges. Commerce Secretary Carlos M. Gutierrez and Energy Secretary Samuel W. Bodman met with European Union Commission Vice President Günter Verheugen and Finnish Minister for Trade and Industry Mauri Pekkarinen to review joint progress in the most significant areas of the transatlantic economy, including innovation, intellectual property rights (IPR), regulatory cooperation, and energy

384

Step-by-Step Instructions  

NLE Websites -- All DOE Office Websites (Extended Search)

Tennessee Tennessee based upon the simple prescriptive option of the 2012 IECC. It does not provide a guarantee for meeting the IECC. This guide is not designed to reflect the actual energy code, with amendments, if any, adopted in Tennessee and does not, therefore, provide a guarantee for meeting the state energy code. For details on the energy code adopted by Tennessee, including how it may differ from the IECC, please contact your local building code official. Additional copies of this guide are available on www.reca-codes.com. CLIMATE ZONE 4 Anderson Franklin Loudon Scott Bedford Gibson Macon Sequatchie Benton Giles Marion Sevier Bledsoe Grainger Marshall Smith Blount Greene Maury Stewart Bradley Grundy McMinn Sullivan Campbell Hamblen Meigs Sumner

385

National Action Programmes on Desertification | Open Energy Information  

Open Energy Info (EERE)

Programmes on Desertification Programmes on Desertification Jump to: navigation, search Name National Action Programmes on Desertification Agency/Company /Organization United Nations Convention to Combat Desertification Sector Land Focus Area Forestry, Agriculture Topics Co-benefits assessment, GHG inventory, Policies/deployment programs, Background analysis Resource Type Publications Website http://www.unccd.int/actionpro Country Algeria, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Cape Verde, Chad, Democratic Republic of Congo, Djibouti, Egypt, Equatorial Guinea, Eritrea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Kenya, Lesotho, Madagascar, Malawi, Mali, Mauritania, Morocco, Mozambique, Namibia, Niger, Nigeria, Senegal, South Africa, Sudan, Swaziland, Tanzania, Togo, Tunisia, Uganda, Zambia, Zimbabwe

386

Enhancing Capacity for Low Emission Development Strategies (EC-LEDS)  

Open Energy Info (EERE)

Enhancing Capacity for Low Emission Development Strategies Program Enhancing Capacity for Low Emission Development Strategies Program Agency/Company /Organization United States Agency for International Development, United States Environmental Protection Agency, United States Department of Energy, United States Department of Agriculture, United States Department of State Sector Energy, Land Topics Low emission development planning, -LEDS Program Start 2010 Program End 2014 Country Albania, Bangladesh, Cambodia, Colombia, Costa Rica, Gabon, Georgia, Guatemala, Indonesia, Jamaica, Kazakhstan, Kenya, Republic of Macedonia, Malawi, Malaysia, Mexico, Moldova, Peru, Philippines, Serbia, South Africa, Thailand, Ukraine, Vietnam, Zambia UN Region Southern Asia References Enhancing Capacity for Low Emission Development Strategies Program[1]

387

Property:Country | Open Energy Information  

Open Energy Info (EERE)

Country Country Jump to: navigation, search This is a property of type Page. Pages using the property "Country" Showing 25 pages using this property. (previous 25) (next 25) 4 4C Offshore Limited + United Kingdom + A A1 Sun, Inc. + United States + ALDACOR INC + United States + Abu Dhabi Supreme Petroleum Council + United Arab Emirates + Algeria Ministry of Energy and Mining + Algeria + Alternate Energy LLC + United States + B Bahrain National Gas and Oil Authority + Bahrain + Balloon Eólica + Brazil + Buffalo Software + United States + C CSBC Corporation + Taiwan + Community Energy Inc + United States + E EXEN Holdings LLC + United States + Ecoforest + Spain + H HOMER + Armenia + HOMER + Yugoslavia + HOMER + Gabon + HOMER + Sri Lanka + HOMER + Canada +

388

Oklo-natural fission reactor program. Progress report, October 1, 1979-December 31, 1979  

SciTech Connect

The study of lead, ruthenium, and technetium transport in nature requires the mass spectrometric analyses of large numbers of geologic samples. This quarter about 200 samples arrived from Gabon, which were collected at the Oklo mine in September. Work was performed to improve the lead and ruthenium chemical procedures and the mass spectrometric instrumentation in preparation for analyzing many of the Oklo samples and a large number of the 402 samples on hand from Key Lake, Canada. Data concerning ruthenium isotopic alterations from samples near an Oklo natural fission reactor zone indicated that ruthenium or technetium were not transported to distances greater than the 10 meters detected previously.

Norris, A.E.

1980-03-01T23:59:59.000Z

389

OPEC production: Capital limitations, environmental movements may interfere with expansion plans  

SciTech Connect

Obtaining capital is a critical element in the production expansion plans of OPEC member countries. Another issue that may impact the plans is the environmental taxes that may reduce the call on OPEC oil by 5 million b/d in 2000 and about 16 million b/d in the year 2010. This concluding part of a two-part series discusses the expansion possibilities of non-Middle East OPEC members, OPEC's capital requirements, and environmental concerns. Non-Middle East OPEC includes Algeria, Gabon, Indonesia, Libya, Nigeria, and Venezuela.

Ismail, I.A.H. (Organization of the Petroleum Exporting Countries, Vienna (Austria))

1994-05-09T23:59:59.000Z

390

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

SciTech Connect

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

Not Available

1993-08-01T23:59:59.000Z

391

Systematic program and internal inspection keys to corrosion control  

SciTech Connect

A review of corrosion problems on the 670-mile land and offshore system operated by Elf Gabon indicated that internal corrosion has been the most persistent problem. The company has operated the system since 1959. Causes include the presence of CO{sub 2} in polyphasic lines, residual oxygen and sulfate-reducing bacteria SRBP in water-injection lines, and bacterial corrosion in crude-oil lines. External corrosion has been less troublesome, caused either by atmospheric marine exposure with frequent wetting or by disbonded coatings on buried pipes.

Roche, M. (Societe Nationale Elf Aquitaine, Pau (FR))

1991-04-08T23:59:59.000Z

392

Potential causes for slope instabilities of under-consolidated marine sediments  

SciTech Connect

Offshore studies have been completed in the Gulf of Guinea, off West Africa. An area has been selected over the Gabon continental slope. A morpho-sedimentological zonation is made regarding acoustic data and geotechnical characteristics of sampled sediments. An old slide has been considered as a criteria for estimating realistic slope failure conditions. Both drained and undrained formulations tend to prove that fluid escape is the most realistic explanation for slides occurrence. Regional hazard charts also allow them to present unstable zones and build up criteria for structures implantation.

Quemeneur, P.; Tisot, J.P. [ENSG, Vandoeuvre-les-Nancy (France). Laboratoire de Geomecanique; Cochonat, P.; Bourillet, J.F.; d`Oultremont, V. [IFREMER, Plouzane (France); Colliat, J.L.; Tofani, R. [Elf Aquitaine Production, Pau (France)

1995-12-31T23:59:59.000Z

393

Coating disbondment leads causes of external pipeline corrosion  

SciTech Connect

Internal corrosion has proved the most persistent corrosion problem on the approximately 670 miles of pipelines operated since 1959 by Elf Gabon. Causes include the presence of CO{sub 2} in polyphasic lines, residual oxygen and sulfate-reducing bacteria (SRB) in water-injection lines, and bacterial corrosion in crude-oil lines. External corrosion has been less troublesome, caused either by atmospheric marine exposure with frequent wetting or by disbonded coatings on buried lines. These were the major conclusions of a review conducted by the company and presented here in two parts. This article focuses on external corrosion.

Roche, M. (Societe Nationale Elf-Aquitaine (France))

1991-04-01T23:59:59.000Z

394

New PDC bit design increased penetration rate in slim wells  

SciTech Connect

This paper describes slim hole bit design developed at the Paris School of Mines and Security DBS. The design is a compromise between several criteria such as drilling efficiency, uniform wear distribution around the bit face and low level of vibration of the bit, according to the hole diameter and the formation characteristics. Two new bits were manufactured and run successfully in a full scale drilling test bench and in field test in Gabon. The result show improvement of the drilling performances in slimhole application.

Gerbaud, L.; Sellami, H. [Paris School of Mines (France); Lamine, E.; Sagot, A.

1997-07-01T23:59:59.000Z

395

Hot spots remain the exception  

SciTech Connect

This article is a survey of the drilling activity and petroleum activity in Africa. The areas which seem to hold the highest promise for new discoveries or increased exports are Egypt's Western Desert which seems to offer the possibility of significant oil discoveries. In addition, Nigeria has dramatically increased its exploration activity which is counter to the global trend in 1986. Areas where activity is decreasing are Cameroon, South Africa. It is pointed out that the Gabon crude oil reserves may have been raised 60% by a single on-shore discovery.

Not Available

1987-08-01T23:59:59.000Z

396

Forest Carbon Partnership Facility | Open Energy Information  

Open Energy Info (EERE)

Forest Carbon Partnership Facility Forest Carbon Partnership Facility Jump to: navigation, search Logo: Forest Carbon Partnership Facility Name Forest Carbon Partnership Facility Agency/Company /Organization World Bank Sector Land Focus Area Forestry Topics Co-benefits assessment, Finance Resource Type Lessons learned/best practices, Training materials Website http://www.forestcarbonpartner Country Argentina, Bolivia, Cambodia, Cameroon, Central African Republic, Chile, Colombia, Costa Rica, Democratic Republic of Congo, El Salvador, Equatorial Guinea, Ethiopia, Gabon, Ghana, Guatemala, Guyana, Honduras, Indonesia, Kenya, Laos, Laos, Liberia, Madagascar, Mexico, Moldova, Mozambique, Nepal, Nicaragua, Panama, Papua New Guinea, Paraguay, Peru, Republic of the Congo, Suriname, Tanzania, Thailand, Uganda, Vanuatu, Vietnam

397

Geology of the Douala basin, offshore Cameroon, West Africa  

SciTech Connect

The Douala basin is predominantly an offshore basin extending from the Cameroon volcanic line in the north to the Corisco arch in the south near the Equatorial Guinea-Gabon border. The basin lies wholly within the territorial borders of Cameroon and Equatorial Guinea. The Douala basin is one of a series of divergent margin basins occurring along the southwest African coastline resulting from the rifting of Africa from South America. Continental rifting in the Doula basin was initiated at least by Aptian-Albian time and possibly as early as Jurassic. The rift stage persisted until Albian time when the onset of drifting occurred. The sedimentary section in the basin has a maximum thickness of 8-10 km, based on exploration drilling and gravity and magnetics modeling. The synrift section consists of Aptian-Albian sands and shales, deposited primarily as submarine fans, fan-deltas, and turbidite deposits. These are overlain by salt, thought to be equivalent to the Ezagna salt of Aptian age in the Gabon basin to the south. The synrift section is separated from the overlying postrift shale sequence of Late Cretaceous and Tertiary age by a major late Albian unconformity. The Douala basin has been explored for hydrocarbons intermittently over the last 25 years. Results show a distinct tendency for gas-proneness. The largest field recorded to date is the Sanaga Sud gas field, discovered in 1979, offshore, near the coastal city of Kribi.

Pauken, R.J.; Thompson, J.M.; Schumann, J.R. (Mobil New Exploration Ventures Co., Dallas, TX (United States)); Cooke, J.C. (Mobil Exploration and Production Services Inc., Dallas, TX (United States))

1991-03-01T23:59:59.000Z

398

Protolanguage and the “God particle”  

Science Journals Connector (OSTI)

Most scholars investigating the evolution of language subscribe to the hypothesis that protolanguage occurred as an intermediate stage between the speechless state of our remote ancestors and modern language. But some scholars – Noam Chomsky and fellow biolinguists, Bernd Heine and Tania Kuteva, and others – have expressed serious doubts about the existence of protolanguage. The present article investigates the cause of this disagreement and what it reveals about the nature of influential modern work on language evolution. It does this by analysing the case made by Derek Bickerton for the existence of protolanguage, as well as Noam Chomsky's case against the existence of protolanguage. Both cases are shown to be weak, resting on a range of implicit and/or contentious assumptions. Invoking a conceptual distinction illustrated by physicists’ hunt for the “God particle”, the article argues that the case for the existence of protolanguage has not been strengthened by recent work attributing specific properties to protolanguage. To conclude, the article discusses the conceptual means needed for shoring up the assumption that evidence for the existence of protolanguage can be derived from so-called living linguistic fossils.

Rudolf Botha

2012-01-01T23:59:59.000Z

399

Countries - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

Countries Countries Glossary › FAQS › Overview Data Reports Analysis Briefs Countries Algeria Angola Argentina Australia Azerbaijan Brazil Canada China Colombia Congo (Brazzaville) Ecuador Egypt Gabon India Indonesia Iran Iraq Japan Kazakhstan Korea, South Kuwait Libya Malaysia Mexico Nigeria Norway Oman Qatar Russia Saudi Arabia Singapore South Africa Sudan and South Sudan Syria Thailand Turkey United Arab Emirates United Kingdom Venezuela Yemen Regional Caribbean Caspian Sea East China Sea Eastern Mediterranean Middle East & North Africa South China Sea Special Topics Emerging East Africa Energy OPEC Revenues Fact Sheet World Oil Transit Chokepoints World Regions Oil Production Oil Consumption Proved Reserves Click country for more information | Zoom Out | Zoom to: Zoom to Country: Afghanistan Albania Algeria American Samoa Angola

400

Countries - U.S. Energy Information Administration (EIA) - U.S. Energy  

Gasoline and Diesel Fuel Update (EIA)

Countries Countries Glossary › FAQS › Overview Data Reports Analysis Briefs Countries Algeria Angola Argentina Australia Azerbaijan Brazil Canada China Colombia Congo (Brazzaville) Ecuador Egypt Gabon India Indonesia Iran Iraq Japan Kazakhstan Korea, South Kuwait Libya Malaysia Mexico Nigeria Norway Oman Qatar Russia Saudi Arabia Singapore South Africa Sudan and South Sudan Syria Thailand Turkey United Arab Emirates United Kingdom Venezuela Yemen Regional Caribbean Caspian Sea East China Sea Eastern Mediterranean Middle East & North Africa South China Sea Special Topics Emerging East Africa Energy OPEC Revenues Fact Sheet World Oil Transit Chokepoints ERROR: Invalid Country Code The link you followed is incorrect. The administrator of this site has been notified via email. Thank you for your patience. Choose your country from the menu below; or, return to Country Profiles

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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401

USAID West Africa Climate Program | Open Energy Information  

Open Energy Info (EERE)

West Africa Climate Program West Africa Climate Program Jump to: navigation, search Name USAID West Africa Climate Program Agency/Company /Organization U.S. Agency for International Development Sector Energy, Land Focus Area Energy Efficiency, Renewable Energy, Forestry, Agriculture Topics Background analysis Website http://www.usaid.gov/our_work/ Country Ghana, Togo, Benin, Senegal, Niger, Nigeria, Mali, Liberia, Gambia, Ivory Coast, Burkina Faso, Sierra Leone, Mauritania, Guinea, Guinea-Bissau, Cameroon, Gabon, Equatorial Guinea, Chad, Sao Tome and Principe, Cape Verde Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Western Africa, Middle Africa, Middle Africa, Middle Africa, Middle Africa, Middle Africa, Western Africa

402

NREL: International Activities - Bilateral Partnerships  

NLE Websites -- All DOE Office Websites (Extended Search)

Bilateral Partnerships Bilateral Partnerships NREL partners with more than 50 countries around the world to advance development and use of renewable energy and energy efficiency technologies: Angola Argentina Australia Bangladesh Brazil Canada Chile China Colombia Costa Rica Gabon Haiti India Indonesia Japan Kazakhstan Kenya Korea Mexico North America Philippines Saudi Arabia U.S. Pacific Territories United Arab Emirates Vietnam Asia Bangladesh Under sponsorship from the U.S. Agency for International Development (USAID), NREL provides technical support for mapping the wind resource in the Bay of Bengal littoral zone in order to provide sufficiently accurate information for national-level strategic energy planning. China NREL manages renewable energy cooperation with China under the U.S.-China

403

Total Crude Oil and Products Imports from All Countries  

Gasoline and Diesel Fuel Update (EIA)

Country: All Countries Persian Gulf OPEC Algeria Angola Ecuador Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Albania Argentina Aruba Australia Austria Azerbaijan Bahamas Bahrain Barbados Belarus Belgium Belize Benin Bolivia Brazil Brunei Bulgaria Burma Cameroon Canada Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Cook Islands Costa Rica Croatia Cyprus Czech Republic Denmark Dominican Republic Egypt El Salvador Equatorial Guinea Estonia Finland France Gabon Georgia, Republic of Germany Ghana Gibralter Greece Guatemala Guinea Hong Kong Hungary India Indonesia Ireland Israel Italy Ivory Coast Jamaica Japan Kazakhstan Korea, South Kyrgyzstan Latvia Liberia Lithuania Malaysia Malta Mauritania Mexico Midway Islands Morocco Namibia Netherlands Netherlands Antilles New Zealand Nicaragua Niue Norway Oman Pakistan Panama Papua New Guinea Peru Philippines Poland Portugal Puerto Rico Romania Russia Senegal Singapore Slovakia South Africa Spain Spratly Islands Swaziland Sweden Switzerland Syria Taiwan Thailand Togo Trinidad and Tobago Tunisia Turkey Turkmenistan Ukraine United Kingdom Uruguay Uzbekistan Vietnam Virgin Islands (U.S.) Yemen

404

NDP-30/R6 (Table 2)  

NLE Websites -- All DOE Office Websites (Extended Search)

Comprises the sum of Africa, North America, South America, Asia, Europe, Comprises the sum of Africa, North America, South America, Asia, Europe, Oceania, the former U.S.S.R., and the Antarctic Fisheries. 2 Includes Christmas Island. 3 Identifies bunkers delivered by tankers to vessels on the Antarctic fishing grounds; fuels delivered to Antarctic research stations are not included. 4 Refers to former Burma. 5 Refers to the former Democratic Kampuchea. 6 Excludes Taiwan province. 7 Includes Taiwan Province. 8 Prior to 1 January 1993, refers to the former Czechoslovakia composed of the Czech Republic and Slovakia. 9 Code used for population data only. Energy statistics for France and Monaco are combined (251). 10 From 1950 to 1958, data includes the Central African Republic, Chad, Congo, and Gabon. 11 From 1950 to 1954, data includes Cambodia, Laos, and Vietnam.

405

Countries - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA) Indexed Site

Countries Countries Glossary › FAQS › Overview Data Reports Analysis Briefs Countries Algeria Angola Argentina Australia Azerbaijan Brazil Canada China Colombia Congo (Brazzaville) Ecuador Egypt Gabon India Indonesia Iran Iraq Japan Kazakhstan Korea, South Kuwait Libya Malaysia Mexico Nigeria Norway Oman Qatar Russia Saudi Arabia Singapore South Africa Sudan and South Sudan Syria Thailand Turkey United Arab Emirates United Kingdom Venezuela Yemen Regional Caribbean Caspian Sea East China Sea Eastern Mediterranean Middle East & North Africa South China Sea Special Topics Emerging East Africa Energy OPEC Revenues Fact Sheet World Oil Transit Chokepoints World Regions Oil Production Oil Consumption Proved Reserves Click country for more information | Zoom Out | Zoom to: Zoom to Country: Afghanistan Albania Algeria American Samoa Angola

406

Advancing Methods for Determining the Source of HEU Used in Terrorist Nuclear Weapon  

E-Print Network (OSTI)

31 TABLE VI. Variations in measured 234 U/ 238 U atom ratios from mines throughout the world. 7,14 Sample No. Country of Origin Milling Facility 234 U/ 238 U Atom Ratio Statistical Uncertainty 1 Finland Askola 5.444E-05 8.0E-08 2... Finland Paukkajanvaara 5.126E-05 7.6E-07 3 Australia Ranger Mine 5.455E-05 4.4E-07 4 Australia Dam Operations 5.341E-05 6.2E-07 5 Canada Cogema Resources 5.385E-05 6.0E-07 6 Canada CAMECO Key Lake Op. 5.397E-05 3.4E-07 7 Gabon Comuf Mounana 5.434E-05...

LaFleur, Adrienne; Charlton, William

2007-09-17T23:59:59.000Z

407

Oklo: natural fission reactor program. Progress report, July 1-September 30, 1979  

SciTech Connect

Nearly 200 samples were collected at the Oklo mine in Gabon this quarter for shipment to the United States to continue studies of lead, ruthenium, and technetium migration around natural fission reactors. The first analyses of samples collected near a rich uranium ore body in Canada show the presence of radiogenic lead in pyrite and sandstone materials. Analyses of additional samples are underway to permit the interpretation of the data in terms of transport paths. A technique was developed this quarter to eliminate the interference of organic materials during the mass spectrometric analyses of ruthenium in Oklo samples with high asphaltic contents. A proposal was drafted for a study of naturally occurring radionuclide migration at rich uranium ore bodies in Australia to be performed jointly by the US Department of Energy and the Australian Atomic Energy Commission.

Norris, A.E.

1980-01-01T23:59:59.000Z

408

Remote system for subsea wells tested  

SciTech Connect

At its experimental submarine station in the Grondin field offshore the West African state of Gabon, Societe Nationale Elf-Aquitaine has run a series of inspection, repair, and maintenance tests on two producing wells using a robot controlled from the surface. Designed for water depths beyond the range of divers, the TIM robot has a pair of manipulator arms and a rotating telescopic crane installed on a 14 by 7.6 ft carriage. Five television cameras fitted at various spots on the robot allow surface operators to direct TIM in such tasks as (1) installing a jumper pipe between a Christmas tree and the manifold, (2) connecting a jumper electric cable and hydraulic hose, (3) locally operating a safety valve, and (4) removing a guide line. During 104 hr of seabed experience, TIM outperformed divers, particularly in jobs requiring great strength.

Vielvoye, R.

1981-05-04T23:59:59.000Z

409

Skid-mounted rotating thermal separator efficiently recovers NGL from associated gas  

SciTech Connect

A significant portion of the LPG fraction of the associated gas from a small field can be economically recovered even in remote locations. An example is the Breme field, for which Elf Gabon is the operator. Situated 50 miles from Port Gentil, the field is located on a narrow strip of land between the sea and a lagoon, with access only by plane or boat. A prefabricated, skid-mounted, turnkey plant is now efficiently recovering gas condensate from the field flare. At the full rated 14 MMscfd gas flow (55 psia), the recovered LPG can add as much as 650 b/d to the 12,000 b/d crude oil production rate, 6 vol %. The plant includes a compact plate heat exchanger and a rotating thermal separator (RTS) that requires little maintenance, minimal control, and no outside energy.

Marchal, P.; Malek, S.; Viltard, J.C.

1984-12-03T23:59:59.000Z

410

Micropaleontology and biostratigraphy of the coastal basins of West Africa  

SciTech Connect

This book is intended to meet the need for a single volume on descriptive micropaleontology of West African microfauna assemblage which is different from that of the Boreal, Mediterranean, Pacific and Atlantic regions. The contents include: Preface. Introduction. Systematics: West African foraminifera species: Systematic classification and description. Glossary for the foraminifera. Selected references for the foraminifera. The ostracoda: Systematic classification and description. Glossary for the ostracoda. Selected references for the ostracoda. Stratigraphic Sequences of the West African Coastal Basins: General review. Angola-Cuanza basin. Congo. Gabon. Cameroun-Douala basin. Nigeria. Togo-Benin basin. Ghana. Ivory Coast. Senegal. Appendix: Brief classification of foraminifera. Paleo-ecology of the foraminifera. Testing of samples. Collection of samples. Preparation of samples. Preparation of thin sections. Storage of microfossils. Methods of examination. Index.

Kogbe, C.A.; Mehes, K.

1986-01-01T23:59:59.000Z

411

DOE and aid stand-alone photovoltaic activities: a status report  

SciTech Connect

The NASA Lewis Research Center (LeRC) is managing stand-alone photovoltaic (PV) system activities sponsored by the U.S. Department of Energy (DOE) and the U.S. Agency for International Development (AID). The DOE project includes village PV power demonstration projects in Gabon (four sites) and the Marshall Islands, PV-powered medical refrigerators in six countries, PV system microprocessor control development activities and PV-hybrid system assessments. The AID project includes a large village system in Tunisia, a water pumping/grain grinding project in Upper Volta, five medical clinics in four countries, PV-powered medical refrigerator field tests in eighteen countries and one PV-powered remote earth station application. This paper reviews these PV activities and summarizes significant findings to date.

Bifano, W.J.; Ratajczak, A.F.

1983-06-01T23:59:59.000Z

412

Status of DOE and AID stand-alone photovoltaic system field tests  

SciTech Connect

The NASA Lewis Research Center (LeRC) is managing stand-alone photovoltaic (PV) system projects sponsored by the U.S. Department of Energy (DOE) and the U.S. Agency for International Development (AID). The DOE project includes village PV power demonstration projects in Gabon (four sites) and the Marshall Islands, and PV-powered vaccine refrigerator systems in six countries. The AID project includes a large village power system, a farmhouse system and two water pumping-irrigation systems in Tunisia, a water pumping/grain grinding system in Upper Volta, five medical clinic systems in four countries, PV-powered vaccine refrigerator systems in 18 countries and a PVpowered remote earth station in Indonesia. This paper reviews these PV projects and summarizes significant findings to date.

Bifano, W.J.; DeLombard, R.; Ratajczak, A.F.; Scudder, L.R.

1984-05-01T23:59:59.000Z

413

DOE and AID stand-alone photovoltaic activities. Status report  

SciTech Connect

The NASA Lewis Research Center (LeRC) is managing stand-alone photovoltaic (PV) system activities sponsored by the US Department of Energy (DOE) and the US Agency for International Development (AID). The DOE project includes village PV power demonstration projects in Gabon (four sites) and the Marshall Islands, PV-powered medical refrigerators in six countries, PV system microprocessor control development activities and PV-hybrid system assessments. The AID project includes a large village systen in Tunisia, a water pumping/grain grinding project in Upper Volta, five medical clinics in four countries, PV-powered medical refrigerator field tests in eighteen countries and one PV-powered remote earth station application. This paper reviews these PV activities and summarizes significant findings to date.

Bifano, W.J.; Ratacajczak, A.F.

1983-01-01T23:59:59.000Z

414

Nuclear waste criticality analysis. Final report, 1 July 1995--30 June 1996  

SciTech Connect

The natural reactors that occurred in Gabon, Africa over 2 billion years ago present an interesting analog to the underground repositories proposed around the world for the long-term storage of high-level spent nuclear fuel. Many articles have been written concerning the low migration rates of actinides and fission products from the Oklo reactor sites, but Oklo also presents researchers with an opportunity to discover the conditions that led to nuclear criticality in uranium oxides with low enrichments. A computer model was developed to predict the conditions that were necessary to lead to criticality in the Oklo reactors. Critical core dimensions and infinite multiplication factors are presented as a function of time, the porosity of the host rock, and the water and uranium content of the sandstone deposits at Oklo.

Culbreth, W.G.

1996-07-03T23:59:59.000Z

415

Central Africa: Global climate change and development. Overview. Technical report  

SciTech Connect

The preliminary study focuses on the six countries of central Africa which contain the largest remaining contiguous block of closed forests in sub-Saharan Africa: Cameroon, Central African Republic, the Congo, Equatorial Guinea, Gabon, and Zaire. The carbon in the vegetation and soils in these moist tropical forests and surrounding seasonal woodlands constitute the greatest potential source of future carbon dioxide (CO2) emissions from sub-Saharan Africa. This study also considers the importance of savanna burning, although in less depth since the small savanna area in central Africa precludes this activity from being a large regional source of emissions. Analysis of biogeophysical and socioeconomic issues relevant to global climate change, and research containing both space-based and ground-based components, were undertaken.

Not Available

1993-01-01T23:59:59.000Z

416

Central African Regional Program for the Environment (CARPE) | Open Energy  

Open Energy Info (EERE)

the Environment (CARPE) the Environment (CARPE) Jump to: navigation, search Name Central African Regional Program for the Environment (CARPE) Agency/Company /Organization U.S. Agency for International Development, United States Forest Service, University of Maryland Sector Land Focus Area Forestry Topics Implementation, Policies/deployment programs, Background analysis Resource Type Dataset, Maps, Software/modeling tools Website http://carpe.umd.edu/ Country Gabon, Rwanda, Burundi, Sao Tome and Principe, Central African Republic, Democratic Republic of Congo, Republic of the Congo, Equatorial Guinea, Cameroon Middle Africa, Eastern Africa, Eastern Africa, Middle Africa, Middle Africa, Middle Africa, Middle Africa, Middle Africa, Middle Africa References Central African Regional Program for the Environment (CARPE)[1]

417

United States - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

‹ Countries ‹ Countries United States Glossary › FAQS › Overview / Data Analysis Briefs Countries Algeria Angola Argentina Australia Azerbaijan Brazil Canada China Colombia Congo (Brazzaville) Ecuador Egypt Gabon India Indonesia Iran Iraq Japan Kazakhstan Korea, South Kuwait Libya Malaysia Mexico Nigeria Norway Oman Qatar Russia Saudi Arabia Singapore South Africa Sudan and South Sudan Syria Thailand Turkey United Arab Emirates United Kingdom Venezuela Yemen Regional Caribbean Caspian Sea East China Sea Eastern Mediterranean Middle East & North Africa South China Sea Special Topics Emerging East Africa Energy OPEC Revenues Fact Sheet World Oil Transit Chokepoints Overview data for United States + EXPAND ALL Petroleum (Thousand Barrels per Day) Previous Year Latest Year History United States North America

418

Nationally Appropriate Mitigation Actions | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Nationally Appropriate Mitigation Actions Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Nationally Appropriate Mitigation Actions Agency/Company /Organization: United Nations Framework Convention on Climate Change Sector: Energy, Land Focus Area: Energy Efficiency Topics: GHG inventory, Low emission development planning Resource Type: Publications, Lessons learned/best practices, Case studies/examples Website: unfccc.int/home/items/5265.php Country: Afghanistan, Antigua and Barbuda, Armenia, Benin, Bhutan, Botswana, Brazil, Cameroon, Central African Republic, China, Democratic Republic of Congo, Costa Rica, Ivory Coast, Ethiopia, Eritrea, Gabon, Georgia (country), Ghana, India, Indonesia, Israel, Jordan, Madagascar, Maldives, Marshall Islands, Mauritania, Mexico, Mongolia, Morocco, Papua New Guinea, Peru, South Korea, Moldova, San Marino, Sierra Leone, Singapore, South Africa, Republic of Macedonia, Togo, Tunisia

419

The habitat of petroleum in the Brazilian marginal and west African basins: A biological marker investigation  

SciTech Connect

A geochemical and biological marker investigation of a variety of oils from offshore Brazil and west Africa, ranging in age from Lower Cretaceous to Tertiary, has been done, with the following aims: (1) assessing the depositional environment of source rocks, (2) correlating the reservoired oils, (3) comparing the Brazilian oils with their west African counterparts. The approach was based in stable isotope data; bulk, elemental, and hydrous pyrolysis results; and molecular studies involving quantitative geological marker investigations of alkanes using GC-MS and GC-MS-MS. The results reveal similarities between groups of oils from each side of the Atlantic and suggest an origin from source rocks deposited in five types of depositional environment: lacustrine fresh water, lacustrine saline water, marine evaporitic/carbonate, restricted marine anoxic, and marine deltaic. In west Africa, the Upper Cretaceous marine anoxic succession (Cenomanian-Santonian) appears to be a major oil producer, but in Brazil it is generally immature. The Brazilian offshore oils have arisen mainly from the pre-salt sequence, whereas the African oils show a balance between origins from the pre-salt and marine sequences. The integration of the geochemical and geological data indicate that new frontiers of hydrocarbon exploration in the west African basins must consider the Tertiary reservoirs in the offshore area of Niger Delta, the reservoirs of the rift sequences in the shallow-water areas of south Gabon, Congo, and Cuanza basins, and the reservoirs from the drift sequences (post-salt) in the deep-water areas of Gabon, Congo Cabinda, and Cuanza basins.

Mello, M.R.; Soldan, A.L. (Petrobras/Cenpes/Divex, Rio de Janeiro (Brazil)); Maxwell, J.R. (Univ. of Bristol (England)); Figueira, J. (Petrobras/Braspetro, Rio de Janeiro (Brazil))

1990-05-01T23:59:59.000Z

420

Hydrocarbon and non-hydrocarbon gas in salt environments, a contribution to gas genesis understanding  

SciTech Connect

The analysis of organic inclusions is a contribution to the understanding of the thermal and biochemical history of the evaporite basins by the in-situ observation of organic evolution products which are preserved by entrapment in salt. Recent applications of microanalytical techniques (FT-infrared, Raman, FT-Raman, UV-fluorescence) have confirmed and elucidated the nature of the organic phases trapped in inclusions. Three geological environments were studied corresponding to different levels of organic maturation: (1) the Bresse salt deposit (France) where the presence of solid organic matter, immature oil, carbon dioxide, and ammonium is detected, is characteristic of the early diagenesis of the massive salt series deposited at the Eocene-Oligocene period in the West European continental rift, (2) the Gabon margin where oil, methane, carbon dioxide and ammonium correspond to catagenetic products trapped in a salt diapir of the Cretaceous salt series of the Ogooue delta, and (3) the Lena-Tungusska oil-bearing region of Siberian platform where graphite, carbonaceous material, sulphur, carbon dioxide, methane, nitrogen, and oils correspond to the evolution of the evaporite-brine-organic matter system under influence of basalt intrusions. The organic history of salt rocks can be followed from Bresse to Siberian examples. Proteins and carbohydrates are rapidly destroyed during early diagenesis (Bresse-France): ammonium and carbon dioxide are produced by deamination and decarboxylation respectively, the complex organic molecular association is simplified and geopolymers (kerogen precursors) are produced. With increasing maturity (Gabon), kerogen is transformed in aliphatic compounds which are progressively cracked to produce short alkane chains and finally methane. Residual carbon dioxide is also produced. In Siberia, the organic matter evolution is linked to the d/h ratio, where d is the distance to the dolerite sill and h the thickness of the sill.

Pironon, J. [BP, Vandoeuvre-les-Nancy (France); Grishina, S. [United Institute of geology, Novosibirsk (Russian Federation)

1995-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Tectonic significance of Synrift sediment packages across the Congo continental margin  

SciTech Connect

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

McGinnis, J.P.; Karner, G.D.; Driscoll, N.W. (Lamont-Doherty Geological Observatory, Palisades, NY (United States)); Brumbaugh, W.D. (Conoco, Worldwide Exploration Services, Houston, TX (United States)); Cameron, N. (Conoco Ltd., London (United Kingdom))

1993-09-01T23:59:59.000Z

422

prstab.dvi  

NLE Websites -- All DOE Office Websites (Extended Search)

M. M. Gabriela Catanesi, 12 Swapan Chattopadhyay, 11 Weiren Chou, 2 David B. Cline, 15 Linda R. Coney, 14 Janet M. Conrad, 14 John N. Corlett, 16 Lucien Cremaldi, 13 Mary Anne Cummings, 17 Christine Darve, 2 Fritz DeJongh, 2 Alexandr Drozhdin, 2 Paul Drumm, 18 V. Daniel Elvira, 2 Deborah Errede, 19 Adrian Fabich, 3 William M. Fawley, 16 Richard C. Fernow, 8 Massimo Ferrario, 12 David A. Finley, 2 Nathaniel J. Fisch, 20 Yasuo Fukui, 15 Miguel A. Furman, 16 Tony A. Gabriel, 21 Raphael Galea, 14 Juan C. Gallardo, 8 Roland Garoby, 3 Alper A. Garren, 15 Stephen H. Geer, 2 Simone Gilardoni, 3 Andreas J. Van Ginneken, 2 Ilya F. Ginzburg, 22 Romulus Godang, 13 Maury Goodman, 23 Michael R. Gosz, 1 Michael A. Green, 16 Peter Gruber, 3 John F. Gunion, 24 Ramesh Gupta, 8 John R Haines, 21 Klaus Hanke, 3 Gail G. Hanson, 25 Tao Han, 4 Michael Haney, 19 Don Hartill, 26 Robert E. Hartline, 27 Helmut D. Haseroth, 3 Ahmed Hassanein,

423

prstab.dvi  

NLE Websites -- All DOE Office Websites (Extended Search)

18 18 V. Daniel Elvira, 2 Deborah Errede, 19 Adrian Fabich, 3 William M. Fawley, 16 Richard C. Fernow, 8 Massimo Ferrario, 12 David A. Finley, 2 Nathaniel J. Fisch, 20 Yasuo Fukui, 15 Miguel A. Furman, 16 Tony A. Gabriel, 21 Raphael Galea, 14 Juan C. Gallardo, 8 Roland Garoby, 3 Alper A. Garren, 15 Stephen H. Geer, 2 Simone Gilardoni, 3 Andreas J. Van Ginneken, 2 Ilya F. Ginzburg, 22 Romulus Godang, 13 Maury Goodman, 23 Michael R. Gosz, 1 Michael A. Green, 16 Peter Gruber, 3 John F. Gunion, 24 Ramesh Gupta, 8 John R Haines, 21 Klaus Hanke, 3 Gail G. Hanson, 25 Tao Han, 4 Michael Haney, 19 Don Hartill, 26 Robert E. Hartline, 27 Helmut D. Haseroth, 3 Ahmed Hassanein, 23 Kara Hoffman, 28 Norbert Holtkamp, 21 E. Barbara Holzer, 3 Colin Johnson, 3 Rolland P. Johnson, 27 Carol Johnstone, 2 Klaus Jungmann, 29 Stephen A. Kahn, 8 Daniel M. Kaplan, 1 Eberhard K. Keil, 2 Eun-San Kim, 30 Kwang-Je Kim, 28 Bruce J. King, 31 Harold

424

prstab.dvi  

NLE Websites -- All DOE Office Websites (Extended Search)

Swapan Swapan Chattopadhyay, 11 Weiren Chou, 2 David B. Cline, 15 Linda R. Coney, 14 Janet M. Conrad, 14 John N. Corlett, 16 Lucien Cremaldi, 13 Mary Anne Cummings, 17 Christine Darve, 2 Fritz DeJongh, 2 Alexandr Drozhdin, 2 Paul Drumm, 6 V. Daniel Elvira, 2 Deborah Errede, 18 Adrian Fabich, 3 William M. Fawley, 16 Richard C. Fernow, 8 Massimo Ferrario, 12 David A. Finley, 2 Nathaniel J. Fisch, 19 Yasuo Fukui, 15 Miguel A. Furman, 16 Tony A. Gabriel, 20 Raphael Galea, 14 Juan C. Gallardo, 8 Roland Garoby, 3 Alper A. Garren, 15 Stephen H. Geer, 2 Simone Gilardoni, 3 Andreas J. Van Ginneken, 2 Ilya F. Ginzburg, 21 Romulus Godang, 13 Maury Goodman, 22 Michael R. Gosz, 1 Michael A. Green, 16 Peter Gruber, 3 John F. Gunion, 23 Ramesh Gupta, 8 John R Haines, 20 Klaus Hanke, 3 Gail G. Hanson, 24 Tao Han, 4 Michael Haney, 18 Don Hartill, 25 Robert E. Hartline, 26 Helmut D. Haseroth, 3 Ahmed Hassanein, 22 Kara Hoffman, 27

425

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

U.S. Energy Information Administration (EIA) Indexed Site

for Selected Crude Streams for Selected Crude Streams (Dollars per Barrel) Period: Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Crude Stream Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History Angolan Cabinda 1983-2010 Canadian Bow River 1996-2010 Canadian Light Sour Blend W 90.81 W W W W 2010-2013 Canadian Lloydminster 70.87 79.48 80.36 W 92.04 W 1983-2013 Ecuadorian Oriente 1983-2008 Gabon Rabi-Kouanga 1996-2008 Iraqi Basrah Light 100.31 W W 97.05 101.32 W 2009-2013 Mexican Mayan 98.74 98.36 96.26 99.63 99.74 99.31 1983-2013 Mexican Olmeca 1996-2010 Nigerian Forcados Blend 1996-2008 Nigerian Qua Iboe W W W 2009-2013 Venezuelan Furrial 1996-2008 Venezuelan Leona 1996-2010

426

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

Gasoline and Diesel Fuel Update (EIA)

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History Angolan Cabinda 64.60 W 1978-2008 Canadian Bow River 52.38 81.82 1978-2008 Canadian Light Sour Blend 74.59 93.75 83.54 2010-2012 Canadian Lloydminster 48.54 79.33 50.11 64.41 78.41 77.01 1978-2012 Ecuadorian Oriente W 74.74 1978-2008 Gabon Rabi-Kouanga 71.27 89.56 1978-2008 Iraqi Basrah Light 62.98 74.36 104.51 103.17 2009-2012 Mexican Mayan 59.96 82.99 55.07 70.36 98.27 99.81 1978-2012 Mexican Olmeca 72.12 99.40 1978-2008 Nigerian Forcados Blend 93.72 110.57 1978-2008 Nigerian Qua Iboe 65.60 82.66 115.82 115.85 2009-2012 Venezuelan Furrial - - 1978-2008 Venezuelan Leona W W 1978-2008 Venezuelan Merey

427

Landed Costs of Imported Crude for Selected Crude Streams  

U.S. Energy Information Administration (EIA) Indexed Site

for Selected Crude Streams for Selected Crude Streams (Dollars per Barrel) Period: Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Crude Stream Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History Algerian Saharan Blend W W W W 2009-2013 Angolan Cabinda 1983-2010 Brazilian Marlim W W W W W 2009-2013 Canadian Bow River 75.11 81.32 80.69 90.70 94.40 88.54 1996-2013 Canadian Light Sour Blend 86.95 92.97 91.76 94.96 103.23 102.09 2009-2013 Canadian Lloydminster 73.88 80.34 84.17 87.50 94.64 91.89 1983-2013 Ecuadorian Napo W W W 104.38 103.06 101.56 2009-2013 Ecuadorian Oriente 104.18 104.42 101.61 106.94 107.51 105.09 1983-2013 Gabon Rabi-Kouanga 1996-2008

428

Landed Costs of Imported Crude for Selected Crude Streams  

Gasoline and Diesel Fuel Update (EIA)

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History Algerian Saharan Blend 65.95 81.78 115.82 114.02 2009-2012 Angolan Cabinda 69.17 W 1978-2008 Brazilian Marlim 58.94 76.63 107.13 114.32 2009-2012 Canadian Bow River 52.36 84.29 55.71 68.92 82.02 77.19 1978-2012 Canadian Light Sour Blend 59.12 76.56 96.52 87.82 2009-2012 Canadian Lloydminster 50.94 82.50 53.44 68.13 82.24 81.33 1978-2012 Ecuadorian Napo 48.74 72.97 97.91 101.53 2009-2012 Ecuadorian Oriente 64.57 87.25 56.97 75.48 101.74 105.50 1978-2012 Gabon Rabi-Kouanga 72.93 95.46 1978-2008 Iraqi Basrah Light 64.38 77.96 106.67 106.93 2009-2012 Mexican Mayan 60.93 84.29 56.03 70.87 98.81 100.29 1978-2012 Mexican Olmeca 72.77 101.14 1978-2008

429

Slim hole drilling proven in remote exploration project  

SciTech Connect

This paper reports on a helicopter-supported slim hole exploration project in a remote tropical forest which cost 15% less than a conventional drilling operation. The potential savings after improvements in rig equipment, bits, and drilling and coring methods may approach 30%. Because of the small size of the slim hole equipment, the impact on the rain forest was small. The areas cleared for locations and access during the operation were 75% less than that required for similar operations with conventional road-transported rigs. During the second half of 1991, Total Exploration Gabon, a subsidiary of Total Exploration Production, conducted a slim hole drilling project in the Gabonese tropical rain forest in a joint venture with Chevron Corp., Exxon Corp., and Austria's OMV AG. During this helicopter-supported operation, two wells were drilled: one to 2,747 m (9,010 ft) ending with a 3 in. hole and one to 418 m (1,371 ft) ending with a 5-7/8 in. hole. Continuous coring operations recovered 1,868 m (6,127 ft), or 59% of the total length drilled.

Dachary, J. (Total Exploration Production, Libreville (GA)); Vighetto, R. (Total Exploration Production, Paris (FR))

1992-06-22T23:59:59.000Z

430

The role of pe, pH, and carbonate on the solubility of UO{sub 2} and uraninite under nominally reducing conditions  

SciTech Connect

Experimental data obtained from uranium dioxide solubility studies as a function of pH and under nominally reducing conditions in a 0.008 mol/dm{sup 3} perchlorate medium and in a 1 mol/dm{sup 3} chloride solution are presented. The solubility of extensively characterized uraninite samples from Cigar Lake (Canada), Jachymov (Czech Republic), and Oklo (Gabon) was determined in a solution matching the composition of a groundwater associated with granitic terrain. The redox potential of the test solution was monitored throughout the experimental period. The results obtained were modeled using aqueous formation constants compiled by the NEA, using stability constants corrected to appropriate ionic strengths. A lower value of the solubility product of the uranium dioxide phase defined as fuel in the SKB uranium database provides reasonable solubilities for a wide span of experimental results at near to neutral pH. Differences in solubility between natural and synthetic samples are attributed to the presence of carbonate in the experiments performed with uraninites, while differences in solubility observed among the natural samples can be correlated to radiation effects at atomic scale.

Casas, I.; Pablo, J. de; Gimenez, J.; Torrero, M.E. [Polytechnic Univ. of Catalunya, Barcelona (Spain). Dept. of Chemical Engineering] [Polytechnic Univ. of Catalunya, Barcelona (Spain). Dept. of Chemical Engineering; Bruno, J.; Cera, E. [QuantiSci SL, Cerdanyola (Spain)] [QuantiSci SL, Cerdanyola (Spain); Finch, R.J.; Ewing, R.C. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Earth and Planetary Sciences] [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Earth and Planetary Sciences

1998-07-01T23:59:59.000Z

431

Migration and retention of elements at the Oklo natural reactor  

SciTech Connect

The Oklo natural reactor, Gabon, permits study of fission-produced elemental behavior in a natural geologic environment. The uranium ore that sustained fission reactions formed about 2 billion years before present (BYBP), and the reactor was operative for about 5 x 10/sup 5/ yrs between about 1.95 to 2 BYBP. The many tons of fission products can, for the most part, be studied for their abundance and distribution today. Since reactor shutdown, many fissiogenic elements have not migrated from host pitchblende, and several others have migrated only a few tens of meters from the reactor ore. Only Xe and Kr have apparently been largely removed from the reactor zones. An element by element assessment of the Oklo rocks' ability to retain the fission products, and actinides and radiogenic Pb and Bi as well, leads to the conclusion that no widespread migration of the elements occurred. This suggests that rocks with more favorable geologic characteristics are indeed well suited for consideration for the storage of radioactive waste.

Brookins, D.G.

1982-01-01T23:59:59.000Z

432

What is industry's deepwater capability  

SciTech Connect

Industry now has drilled many wells in water depths of from 2000 to 5000 ft offshore countries like Canada, Surinam, Australia, UK, Spain, Ivory Coast, Nigeria, Gabon, Brazil, Mauritania, Indonesia, Morocco and Ireland. The US has the world's best technology and the world's best experience and most of the world's proven deepwater drilling equipment and contractors are in the US. However, the US has not released for exploration its deepwater areas. The OCS out to 600+ ft is being exlored in a routine manner by mobile, bottom-supported and floating drilling equipment. The continental slope (600 to 5000 ft.) is being explored by the special deepwater floating drilling units. The continental rise (5000 to 13,000 ft.) is industry's next objective for exploration. The technology and experience used in exploration drilling is applied to producing oil/gas in deepwater. Production is handled by a floating platform resembling a semi drilling rig with a production riser substituting for the drilling riser. Industry takes small, steady steps to develop its techniques for drilling and producing. (DP)

Hammett, D.

1980-11-01T23:59:59.000Z

433

Geochemical aspects of radioactive waste disposal  

SciTech Connect

The book addresses various topics related to the geochemistry of waste disposal: natural radioactivity, kinds of radioactive waste, details of possible disposal sites, low-level waste, uranium mill tailing, natural analogs, waste forms, and engineered barriers. Emphasis throughout is on the importance of natural analogs, the behavior of elements resembling those to be put in a waste repository as they occur in natural situations where the temperature, pressure, and movement of ground water are similar to those expected near a repository. The author is convinced that conclusions drawn from the study of analog elements are directly applicable to predictions about radionuclide behavior, and that the observed near-immobility of most of these elements in comparable geologic environments is good evidence that radioactive waste can be disposed of underground with negligible effects on the biosphere. Much of his own research has been in this area, and the best parts of the book are the descriptions of his work on trace elements in the salt minerals at the Waste Isolation Pilot Plant in southeastern New Mexico, on the movement of radionuclides and their daughter elements from the famous Precambrian reactor at Oklahoma in Gabon, and on the distribution of analog elements in rocks near the contacts of igneous intrusions.

Brookins, D.G.

1984-01-01T23:59:59.000Z

434

Two-billion-year-old nuclear reactors: Nature goes fission  

SciTech Connect

Once it was thought that the isotopic composition of natural uranium was invariant. It was thus surprising in 1972 when French scientists observed small but significant deficiencies of the minor isotope {sup 235}U in uranium ore. Subsequent investigations traced the isotopically anomalous material to the Oklo mine in the African Republic of Gabon. In the mine, cubic-dekametre-sized pods of rock were found to contain extraordinary concentrations of uranium, as much as 65%, with as little as half the normal isotopic abundance of {sup 235}U. In these rocks, neodymium was found to be deficient in the premordial isotope {sup 142}Nd and enriched in the fission-produced isotopes {sup 143-150}Nd. The presence of fission products was unambiguous evidence that the {sup 235}U deficiencies were the result of sustained nuclear fission. Within the heart of the natural reactors, the fission densities were on the order of 10{sup 20} fissions/cm{sup 3}, producing hundreds of megajoules of energy and tens of microwatts of power per gram of rock. Nature had forestalled man`s great discovery of energy production by nuclear fission.

Curtis, D.B. [Los Alamos National Lab., NM (US)

1992-12-31T23:59:59.000Z

435

Occurrence of naturally enriched {sup 235}U: Implications for plutonium behavior in natural environments  

SciTech Connect

It is generally accepted that uranium and most of the fission products, with the exception of the alkalis, alkaline earths and rare gases, remained in the irradiated uranium oxides during the nuclear reactions that took place 2.0 Ga ago in the Oklo uranium deposit (Gabon). New isotope investigations show that clay minerals from argillaceous rocks neighboring the natural fission reactor 10 at Oklo have depleted {sup 235}U with {sup 235}U/{sup 238}U ratios ranging between 0.00560 and the common natural value of 0.00725. One sample, however, is enriched in {sup 235}U with a {sup 235}U/{sup 238}U ratio of 0.007682. Leach experiments of this sample with dilute 1N HCl revealed that the {sup 235}U enrichment is actually restricted to the insoluble residue ({sup 235}U/{sup 238}U = 0.010511), whereas the leachate remains depleted in {sup 235}U. This unique discovery of very enriched uranium, together with samarium, neodymium, rubidium, and strontium isotopic analyses, indicate that a small amount of plutonium could have been more mobile than uranium in the reactor 10, and it is suggested that plutonium was incorporated in the crystallographic structure of clay minerals such as the chlorites. 28 refs., 3 figs., 1 tab.

Bros, R.; Gauthier-Lafaye, F.; Stille, P. [CNRS, Strasbourg (FR)] [CNRS, Strasbourg (FR); Turpin, L. [CNRS, Gif-sur-Yvette (FR)] [CNRS, Gif-sur-Yvette (FR); Holliger, Ph. [Centre d`Etudes Nucleaires, Grenoble (FR)] [Centre d`Etudes Nucleaires, Grenoble (FR)

1993-03-01T23:59:59.000Z

436

The economic impact of strategic risk on petroleum ventures: Examples from West Africa  

SciTech Connect

Strategic risks attend any and all business ventures. They arise from the nature of the particular business being pursued and the environment in which that business is being conducted. In the petroleum industry, considerable attention is devoted to quantifying technical risks, i.e., the risk of finding and producing hydrocarbons. However, strategic risks often impact economic viability more than technical asks. Accordingly, strategic risk analysis is critical to, realistically evaluating petroleum ventures in today`s turbulent business environment. While difficult to assess and quantify, strategic risks must be accorded equal status with technical risks. Competitor activity, contract terms, environmental sensitivity, political stability and market forces are typical strategic risks. A strategic risk system correlates a company`s capabilities with the quality of possible ventures. Internal strengths and weaknesses are thus matched against external opportunities and threats. This is known in the business literature as a SWOT analysis. The degree of strategic risk is then proportional to the mismatch between the SWOT elements. Such a mismatch was not recognized during exploration of the West Africa Aptian Salt Basins play in the 1980s. Angola, Congo and Gabon all contain examples where failure to consider strategic risk ultimately resulted in {open_quotes}Gambler`s Ruin{close_quotes}.

Ethetton, L.K.; Brumbaugh, W.D.

1995-12-31T23:59:59.000Z

437

Hydrocarbon accumulation on rifted Continental Margin - examples of oil migration pathways, west African salt basins  

SciTech Connect

Examination of the oil fields in the Gabon, Lower Congo, and Cuanza basins allows modeling of oil migration and a more accurate ranking of prospects using geologic risk factors. Oil accumulations in these basins are in strata deposited during Cretaceous rift and drift phases, thus providing a diversity of geologic settings to examine. Oil accumulations in rift deposits are located on large faulted anticlines or in truncated units atop horst features. Many of these oil fields were sourced from adjacent organic shales along short direct migration paths. In Areas where source rock is more remote to fields or to prospective structures, faulting and continuity of reservoir rock are important to the migration of hydrocarbons. Because Aptian salts separate rift-related deposits from those of the drift stage, salt evacuation and faulting of the salt residuum are necessary for oil migration from the pre-salt sequences into the post-salt section. Oil migration within post-salt strata is complicated by the presence of salt walls and faulted carbonate platforms. Hydrocarbon shows in wells drilled throughout this area provide critical data for evaluating hydrocarbon migration pathways. Such evaluation in combination with modeling and mapping of the organic-rich units, maturation, reservoir facies, structural configurations, and seals in existing fields allows assessment of different plays. Based on this information, new play types and prospective structures can be ranked with respect to geologic risk.

Blackwelder, B.W.

1989-03-01T23:59:59.000Z

438

Rabi multi-sector reservoir simulation model  

SciTech Connect

To ensure optimum ultimate recovery of the 46 meter thick oil rim of the Rabi Field in Gabon, a full field simulation model was required. Due to it`s size and complexity, with local cusping, coning and geological circumstances dominating individual well behavior, a single full field model would be too large for existing hardware. A method was developed to simulate the full field with 5 separate sector models, whilst allowing the development in one sector model to have an effect on the boundary conditions of another sector. In this manner, the 13 x 4.5 km field could be simulated with a horizontal well spacing down to 175 meter. This paper focuses on the method used to attach single 3-phase tank cells to a sector simulation grid in order to represent non-simulated parts of the field. It also describes the history matching methodology and how to run a multisector model in forecasting mode. This method can be used for any reservoir, where size and complexity require large reservoir simulation models that normally could not be modeled within the constraints of available computer facilities. Detailed studies can be conducted on specific parts of a field, whilst allowing for dynamic flow and pressure effects caused by the rest of the field.

Bruijnzeels, C.; O`Halloran, C.

1995-12-31T23:59:59.000Z

439

Source rock, maturity data indicate potential off Namibia  

SciTech Connect

Namibia`s territorial waters occupy a large portion of West Africa`s continental shelf. The area to the 1,000 m isobath is comparable in size to the combined offshore areas of Gabon, Congo, Zaire, and Angola. Around half as much again lies in 1,000--2,500 m of water. The whole unlicensed part of this area will be open for bidding when the Third Licensing Round starts Oct. 1, 1998. Offshore Namibia is underexplored by drilling with only seven exploration wells drilled. Shell`s Kudu field represents a considerable gas resource with reserves of around 3 tcf and is presently the only commercial discovery.Namibia`s offshore area holds enormous exploration potential. Good quality sandstone reservoirs are likely to be distributed widely, and a number of prospective structural and stratigraphic traps have been identified. The recognition of Cretaceous marine oil-prone source rocks combined with the results of new thermal history reconstruction and maturity modeling studies are particularly significant in assessment of the oil potential. The paper discusses resource development and structures, oil source potential, maturity, and hydrocarbon generation.

Bray, R.; Lawrence, S. [Exploration Consultants Ltd., Henley-on-Thames (United Kingdom); Swart, R. [National Petroleum Corp. of Namibia Pty. Ltd., Windhoek (Namibia)

1998-08-10T23:59:59.000Z

440

Petroleum developments in central and southern Africa in 1979  

SciTech Connect

This review presents developments in petroleum exploration and production during 1979 in 44 countries of central and southern Africa. Petroleum production from 7 countries increased 16.6% to a new record 1,006,846,691 bbl (2.758 million b/d). Nigeria increased production 21% to 845 million, Congo 11.5% to 19 million, and Cameroon 17.6% to 12.5 million bbl. Gabon continued to show a decline in production, off 7.6% at 70.5 million bbl. Surface exploration work decreased 17.5% to 174.9 party-months, though figures on Nigeria are incomplete. Exploration drilling yielded 43 oil and 10 gas wells out of 111 drilled, a 47.7% success rate. Cameroon had 21 and Congo 8 new-field discovery and appraisal wells, up from 11 and 1 respectively in 1978. Development wells numbered 137 of which 86% were successful completions; 45 rigs were operating at year end.

Rachwal, C.A.; Destefano, E.R.

1980-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Eustatic control of gravity tectonics: Concept, mechanism and limits  

SciTech Connect

Gravity tectonics over a ductile decollement characterizes deformation of the Albian to Recent section in the West African margin, from Gabon to Angola. Largely studied during the past 20 years as a prolific petroleum play, it is now well known that three mains factors will control gravity driven deformation: the ductile layer, the slope as a response to the crustal activity and the overlying sedimentary loading. For the West African passive margin, the slope effect at the first glance can be considered as constant and gravity driven deformation as a result of salt layer distribution (in time and space) and sedimentary loading. If previous papers have already shown that the type and distribution of the deposits control the development of the classical structural domains : updip extensional to downdip contractional, this study will focused on the factor which control the sedimentary loading. Based on several natural examples combining seismic stratigraphy, sequential stratigraphy and structural studies and also analogical modelling, it is demonstrated that: (1) as sediment distribution and then sedimentary loading is controlled by relative sea level changes, thus sea level changes can be directly related to gravity driven deformation : large sea level fall will provide an important increase of clastics supply which will enhanced gravity gliding. On the contrary, relative sea level high will stop the deformation because of the decreasing amount of detritics and their homogeneous distribution. (2) the salt downdip withdrawal during extension will enhance the eustatic effect. (3) episodic crustal activity, materialized by westward tilting of the margin will interfere on this mechanism.

Raillard, S.; Allix, P.; Guerin, G.; Lecanu, H. [Elf Aquitaine Production, Pau (France)] [and others

1996-12-31T23:59:59.000Z

442

International energy outlook. Volume 1. Mideast, Far East, and Africa  

SciTech Connect

The developing nations of the Mideast, Far East, and Africa face a bleaker - and more-complicated - energy picture than that of the West. Rapid industrial and agricultural expansion in the region severely drains already-inadequate energy systems. Energy-importing countries find they must diversify and develop indigenous resources, but often lack the technical known-how to do so. Volume 1 is a compilation of official US government intelligence reports examining the way 22 countries in the Mideast, Far East, and Africa are responding to the energy problems. The countries covered are: Algeria, Australia, Burma, China, Egypt, Gabon, India, Indonesia, Ivory Coast, Japan, Korea, Kuwait, Lebanon, Morocco, Mozambique, Pakistan, Saudi Arabia, South Africa, Sudan, Taiwan, Tunisia and Turkey. The range and detail of country reports vary, due to availability of reports. Although the book details current energy situations, its main emphasis is on the future, including estimates of future production and consumption, and descriptions of energy development plans. Some of the countries in this region are fortunate to have petrochemical resources, while electric energy expansion is crucial to national development in all. Coal will be filling the gap left by diminishing oil supplies. 61 tables.

Jablonski, D.M. (ed.)

1982-01-01T23:59:59.000Z

443

Optimising the reward of appraisal drilling  

SciTech Connect

Management of the uncertainties associated with the development of a hydrocarbon resource is essential to minimize economic risk. In many instances these uncertainties can only be reduced by appraisal drilling. This presentation illustrates the efforts being made to manage uncertainty by determining its impact on overall project profitability. The Value of Information (VOI) approach is described. VOI aims at quantifying the benefits of appraisal by determining its economic reward in terms of its contribution to a development plan which is economically robust over the uncertainty range. Appraisal drilling costs can be reduced by combining appraisal and development objectives in one well. The growing use of horizontal drilling technology has resulted in novel approaches to appraisal. As examples, in the Osprey and Brent Fields (UK North Sea) wells were designed to satisfy both appraisal and development objectives. In Osprey, a well was drilled from a central production platform to provide water injection support in a satellite structure while at the same time appraising the saddle area between the two structures. In Brent, horizontal wells are used to appraise and develop the so called slump blocks, characterized by being highly faulted and compartmentalized. Another increasingly common application of horizontal wells is for the flank appraisal of hydrocarbon bearing structure. Examples from the Rabi Field (Gabon) and Batan Field (Nigeria) show how appraisal was achieved by extending the reach of horizontal development wells from the central core of the structures.

Gdula, J.

1996-12-31T23:59:59.000Z

444

Gravity-driven structures and rift basin evolution: Rio Muni Basin, offshore equatorial West Africa  

SciTech Connect

Offshore Equatorial Guinea, west Africa, gravity-driven nappes, more than 1 km thick and 15 km from head to toe, provide key evidence in reconstructing the late synrift: evolution of this part of the South Atlantic margin basin system. Furthermore, Aptian-Cenomanian carbonate and clastic rocks in the nappes` allochthonous hanging walls are attracting interest as a new exploration play in west Africa. The nappes exhibit a range of geometries that suggest they share many of the same deformation processes as thin-skin thrust and linked extensional fault systems. Not only are these structures significant in their own right, representing a rare example of gravity tectonics in the virtual absence of major halokinesis, but their presence may record an other-wise undetectable process active during the transition from a rift basin to a passive continental margin. A review of Equatorial Guinea in its pre-Atlantic configuration, alongside neighboring basins in Brazil (the Sergipe-Alagoas basin) and Gabon, suggests that gravity gliding was sustained by a relatively steep, westward paleoslope promoted by east-ward offset of the locus of thermal uplift from the rift basin (i.e., a simple shear model of basin formation). In contrast to gravity-driven structures in most postrift settings, the Equatorial Guinea nappes developed at the close of the Aptian-Albian synrift episode in response to a growing bathymetric deep caused by rapid subsidence outpacing restricted sedimentation.

Turner, J.P. [Univ. of Birmingham (United Kingdom)

1995-08-01T23:59:59.000Z

445

An environmental mapping methodology adapted to the needs of petroleum operators  

SciTech Connect

Environmental mapping programs were carried out in three countries of intensive petroleum activity, located in the Gulf of Guinea: Gabon, Nigeria and Congo. The aim was to produce maps of environmental sensitive variables (thematic maps), which are used by the petroleum operating companies for improving the management of the environment. The maps are particularly useful for oil spill response organization or environmental assistance in the development of infrastructures. Whilst carrying out these applications, a mapping methodology adapted to the petroleum industry was developed and tested. In the first section, this methodology is described and illustrated by the above mentioned applications. The specific locations are selected according to their ecological, socioeconomic or petroleum special interest. Remote sensing data are used as an initial source of information. Two types of thematic maps are produced the first one dedicated to the ecological components, and the second one to the infrastructures and the environmental sensitivity, assessed from the ecological and socio-economical components. These maps can be integrated into atlases with accompanying text, and in order to make them more operational, all the mapping data collected are integrated into a Geographical Information System (GIS). In the second section, we present the innovative aspects of these R&D works, which concern mainly the adaptation of remote sensing for the environmental expertise and the use of GIS for full data integration and easy updating.

Veyradier, L.; Coquelet, D.; Dutrieux, E.

1996-12-31T23:59:59.000Z

446

Geology, hydrocarbon potential of Rio Muni area, Equatorial Guinea  

SciTech Connect

The Republic of Equatorial Guinea, located in the oil producing province of West Africa, consists of three islands and an enclave in continental Africa with a total surface area of about 28,000 sq km. The islands are in the Gulf of Guinea. The largest, Bioko, lies off Nigeria and Cameroon. The continental enclave, Rio Muni, is bounded to the north by Cameroon and to the east and south by Gabon. The coastal basin of Rio Muni, which is the subject of this article, contributes the major portion of areas offered in the current exploration licensing round. Some 5,275 km of seismic data have been recorded the past 10 years covering most of the offshore and onshore areas of Rio Muni. The quality of seismic data is generally good. Data from all size wells drilled in the area and an aeromagnetic survey of the whole onshore and offshore are also available. The paper describes the West African setting, exploration history, basin development, presalt play, postsalt Aptian play, Albian play, clastic play, Senonian/Paleogene play, and the current licensing round.

Ross, D.; Hempstead, N. (EMS Ltd., Oxted (United Kingdom))

1993-08-30T23:59:59.000Z

447

Changing structure of the world refining industry: implications for the United States and other major consuming regions  

SciTech Connect

There are five chapters in this publication. Chapter I on refining industry in transition covers refining history highlights, and OPEC's downstream operations. Chapter II on demand for oil and oil products discusses supply and demand for OPEC oil, demand for oil products, historical growth trends, future growth trends and the case of East Asia - emergence of a fuel oil glut. Chapter III on the US and other traditional refining centers begins with an introduction on the structure of refining and continues on to cover the refining industry in OECD countries, USA, Western Europe, Japan, Singapore and Caribbean and closes with some conclusions. Chapter IV is on refining expansions in OPEC and the third World Nations. The following are covered: (1) nations of the Gulf (Saudi Arabia, Kuwait, Iran, Iraq, Bahrain, Qatar, Oman, United Arab Emirates); (2) OPEC members beyond the Gulf (Indonesia, Africa, Libya, Algeria, Nigeria and Gabon, South America, Venezuela); (3) other major exporters (China, Egypt, Malaysia, Mexico); (4) non-OPEC developing countries - trends in the refining sector. The chapter ends with a short summary on capacity prospects and comparative economics. The final chapter has conclusions and recommendations on: price interactions between crude and products; product exports - impact on OPEC's internal; prices and market influence; importers and exporters - decisions; and course of action of the United States. 18 figures, 40 tables.

Not Available

1985-02-01T23:59:59.000Z

448

Radiation-Induced Decomposition of U(VI) Phase to Nanocrystals of UO2  

SciTech Connect

U{sup 6+}-phases are common alteration products, under oxidizing conditions, of uraninite and the UO{sub 2} in spent nuclear fuel. These U{sup 6+}-phases are subjected to a radiation field caused by the {alpha}-decay of U, or in the case of spent nuclear fuel, incorporated actinides, such as {sup 239}Pu and {sup 237}Np. In order to evaluate the effects of {alpha}-decay events on the stability of the U{sup 6+}-phases, we report, for the first time, the results of ion beam irradiations (1.0 MeV Kr{sup 2+}) of U{sup 6+}-phases. The heavy-particle irradiations are used to simulate the ballistic interactions of the recoil-nucleus of an {alpha}-decay event with the surrounding structure. The Kr{sup 2+}-irradiation decomposed the U{sup 6+}-phases to UO{sub 2} nanocrystals at doses as low as 0.006 displacements per atom (dpa). U{sup 6+}-phases accumulate substantial radiation doses ({approx}1.0 displacement per atom) within 100,000 years if the concentration of incorporated {sup 239}Pu is as high as 1 wt%. Similar nanocrystals of UO{sub 2} were observed in samples from the natural fission reactors at Oklo, Gabon. Multiple cycles of radiation-induced decomposition to UO{sub 2} followed by alteration to U{sup 6+}-phases provide a mechanism for the remobilization of incorporated radionuclides.

S. Utsunomiya; R.C. Ewing; L. Wang

2005-06-13T23:59:59.000Z

449

Optimising the reward of appraisal drilling  

SciTech Connect

Management of the uncertainties associated with the development of a hydrocarbon resource is essential to minimize economic risk. In many instances these uncertainties can only be reduced by appraisal drilling. This presentation illustrates the efforts being made to manage uncertainty by determining its impact on overall project profitability. The Value of Information (VOI) approach is described. VOI aims at quantifying the benefits of appraisal by determining its economic reward in terms of its contribution to a development plan which is economically robust over the uncertainty range. Appraisal drilling costs can be reduced by combining appraisal and development objectives in one well. The growing use of horizontal drilling technology has resulted in novel approaches to appraisal. As examples, in the Osprey and Brent Fields (UK North Sea) wells were designed to satisfy both appraisal and development objectives. In Osprey, a well was drilled from a central production platform to provide water injection support in a satellite structure while at the same time appraising the saddle area between the two structures. In Brent, horizontal wells are used to appraise and develop the so called slump blocks, characterized by being highly faulted and compartmentalized. Another increasingly common application of horizontal wells is for the flank appraisal of hydrocarbon bearing structure. Examples from the Rabi Field (Gabon) and Batan Field (Nigeria) show how appraisal was achieved by extending the reach of horizontal development wells from the central core of the structures.

Gdula, J.

1996-01-01T23:59:59.000Z

450

Eustatic control of gravity tectonics: Concept, mechanism and limits  

SciTech Connect

Gravity tectonics over a ductile decollement characterizes deformation of the Albian to Recent section in the West African margin, from Gabon to Angola. Largely studied during the past 20 years as a prolific petroleum play, it is now well known that three mains factors will control gravity driven deformation: the ductile layer, the slope as a response to the crustal activity and the overlying sedimentary loading. For the West African passive margin, the slope effect at the first glance can be considered as constant and gravity driven deformation as a result of salt layer distribution (in time and space) and sedimentary loading. If previous papers have already shown that the type and distribution of the deposits control the development of the classical structural domains : updip extensional to downdip contractional, this study will focused on the factor which control the sedimentary loading. Based on several natural examples combining seismic stratigraphy, sequential stratigraphy and structural studies and also analogical modelling, it is demonstrated that: (1) as sediment distribution and then sedimentary loading is controlled by relative sea level changes, thus sea level changes can be directly related to gravity driven deformation : large sea level fall will provide an important increase of clastics supply which will enhanced gravity gliding. On the contrary, relative sea level high will stop the deformation because of the decreasing amount of detritics and their homogeneous distribution. (2) the salt downdip withdrawal during extension will enhance the eustatic effect. (3) episodic crustal activity, materialized by westward tilting of the margin will interfere on this mechanism.

Raillard, S.; Allix, P.; Guerin, G.; Lecanu, H. (Elf Aquitaine Production, Pau (France)) (and others)

1996-01-01T23:59:59.000Z

451

Namibia, practically unexplored, may have land, offshore potential  

SciTech Connect

Namibia became an independent nation in March 1990. Lying in southwestern Africa, it has an onshore area of 823,144 sq km with a coastline some 1,400 km long (Figs. 1,2). The offshore area, out to the 1,000 m isobath, is 340,000 sq km. This is equal to the combined offshore areas of Gabon, Congo, Zaire, and Angola. The hydrocarbon potential of this vast region is virtually unexplored because of political uncertainties that affected the country in the years until independence. Now, however, the country has a democratically elected government, political stability, and a positive and realistic attitude towards foreign investment. The authors describe the recently enacted petroleum legislation, taxation system, and hydrocarbon potential of Namibia. A licensing round (both offshore and onshore) has just been announced and will close Nov. 1, 1991. The new onshore and offshore blocks are shown. Through the activities of Namcor, the national petroleum corporation, and Intera ECL, Namibia is emerging as one of the few remaining countries of the world where truly giant fields could be found.

Light, M.P.R. (Intera ECL Petroleum Technologies, Henley-on-Thames (GB)); Shimutwikeni, N. (National Petroleum Corp. of Namibia, Windhoek, Namibia (ZA))

1991-04-08T23:59:59.000Z

452

Oil and gas developments in central and southern Africa in 1982  

SciTech Connect

Exploratory activity in central and southern Africa continued to be strong during 1982. Seismic operations decreased, but there was a marked increase in the amount of aeromagnetic control obtained. Oil production continued the drop which began in 1981 due to the world oversupply. There were few new concessions taken by the international oil companies. Several small projects required the acquisition of relatively small amounts of land. A notable exception was in Gabon where Tenneco and Amoco have gained strong land positions. The east African countries are preparing for increased land acquisition. Seismic activity declined from 365 party-months in 1981 to 296 party-months in 1982. The amount of control obtained, however, increased substantially to 127,518 km. The acquisition of 3-D control increased by about 50% during the year as this technique was being used more commonly to delineate structures prior to development drilling. Forty-eight new-field wildcats resulted in discoveries, compared with 44 the previous year. There were 281 development wells. In all, 464 wells were drilled to account for 3.6 million ft of hole. Oil production was 662,871,768 bbl, a decrease of 5.8% from 1981. Cumulative production has now exceeded 11 billion bbl.

McGrew, H.J.

1983-10-01T23:59:59.000Z

453

French oil companies in Africa  

SciTech Connect

Petroleum interest in Africa is fairly recent: the first exploration in 1947, Hassi Messaoud (Algeria) in 1957, and more serious interest on the part of French companies in the early 1960s. Two major French companies active in Africa are Elf Aquitaine and CIE Francaise des Petroles (CFP). Elf Aquitaine intends to maintain its effort in Gabon with 9 exploratory wells in 1980 and investments of 50 billion francs, and intends to lessen the production decline in the Congo, particularly after the discovery of the Emeraude offshore field. The difficulties here are the shallow depth forcing high angle directional drilling, high viscosity oil, and a very complex reservoir. Investments in the Congo include 45 billion francs including a terminal and an electric plant. CFP is active mainly in Tunisia, Sudan, and Egypt. In Tunisia, 6 fields are of interest, with investments in the order of 110 million francs. More recently, the effort in Egypt has seen further exploration and production from a well, with the investment of 80 million francs in 1980, probably doubling in 1981.

Rosa, S.D.

1981-10-01T23:59:59.000Z

454

From pre-salt sources to post-salt traps: A specific petroleum system in Congo coastal basin  

SciTech Connect

The Bas Congo basin extends from Gabon to Angola and is a prolific oil province where both pre-salt and post salt sources and reservoirs have been found. In the northern part of the basin referred to as the Congo coastal basin, the proven petroleum system is more specific: mature source rocks are found only in pre-salt series whereas by contrast 99 % proven hydrocarbon reserves am located in post-salt traps. Such a system is controlled by the following factors: Source rocks are mostly organic rich shales deposited in a restricted environment developed in a rift prior to the Atlantic Ocean opening; Migration from pre-salt sources to post-salt traps is finalized by local discontinuities of the regional salt layer acting otherwise as a tight seal; Post-salt reservoirs are either carbonates or sands desposited in the evolutive shelf margin developped during Upper Cretaceous; Geometric traps are linked to salt tectonics (mostly turtle-shaped structures); Regional shaly seals are related to transgressive shales best developped during high rise sea level time interval. Stratigraphically, the age of hydrocarbon fields trends are younger and younger from West to East: lower Albian in Nkossa, Upper Albian and lower Cenomanian in Likouala, Yanga, Sendji, Upper Cenomanian in Tchibouela, Turonian in Tchendo, Turanian and Senonian in Emeraude.

Vernet, R.

1995-08-01T23:59:59.000Z

455

East Coast (PADD 1) Imports from All Countries  

U.S. Energy Information Administration (EIA) Indexed Site

Import Area: East Coast (PADD 1) Midwest (PADD 2) Gulf Coast (PADD 3) Rocky Mountain (PADD 4) West Coast (PADD 5) Period/Unit: Monthly-Thousand Barrels Monthly-Thousand Barrels per Day Annual-Thousand Barrels Annual-Thousand Barrels per Day Import Area: East Coast (PADD 1) Midwest (PADD 2) Gulf Coast (PADD 3) Rocky Mountain (PADD 4) West Coast (PADD 5) Period/Unit: Monthly-Thousand Barrels Monthly-Thousand Barrels per Day Annual-Thousand Barrels Annual-Thousand Barrels per Day Country: All Countries Persian Gulf OPEC Algeria Angola Ecuador Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Argentina Aruba Australia Austria Azerbaijan Bahamas Bahrain Barbados Belarus Belgium Brazil Brunei Bulgaria Cameroon Canada Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Costa Rica Croatia Cyprus Denmark Dominican Republic Egypt El Salvador Equatorial Guinea Estonia Finland France Gabon Georgia, Republic of Germany Ghana Gibralter Greece Guatemala Guinea Hong Kong Hungary India Indonesia Ireland Israel Italy Ivory Coast Jamaica Japan Kazakhstan Korea, South Kyrgyzstan Latvia Liberia Lithuania Malaysia Malta Mauritania Mexico Morocco Namibia Netherlands Netherlands Antilles Niue Norway Oman Pakistan Panama Peru Philippines Poland Portugal Puerto Rico Romania Russia Senegal Singapore South Africa Spain Swaziland Sweden Switzerland Syria Taiwan Thailand Togo Trinidad and Tobago Tunisia Turkey Turkmenistan Ukraine United Kingdom Uruguay Vietnam Virgin Islands (U.S.) Yemen

456

Fermilab Steering Group Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Acknowledgement Acknowledgement The Fermilab Steering Group is grateful to many members of the particle physics and accelerator community for their expert advice and contributions to the preparation of this report: Robert Abrams, Nikolai Andreev, Charles Ankenbrandt, Giorgio Apollinari, Jeff Appel, Rick Baartman, Jonathan Bagger, Wander Baldini, Barry Barish, Gerald Blazey, Dixon Bogert, Ed Bonnema, James Brau, Steven Brice, Stanley Brodsky, Daniel Broemmelsiek, Alan Bross, Charles Brown, Douglas Bryman, William Bugg, Alexey Burov, Phillip Burrows, Maksim Bychkov, Robert Cahn, Marcela Carena, Jean-Paul Carneiro, Harry Carter, Robert Carey, Brian Chase, David Christian, Michael Church, Willie Clark, Janet Conrad, John Corlett, Mary Anne Cummings, Dan Dale, Chris Damerell, Paul Debevec, André de Gouvea, Fritz DeJongh, Marcel Demarteau, Paul Derwent, Milind Diwan, Harold Lee Dodds, Gerald Dugan, Craig Dukes, Estia Eichten, Eckhard Elsen, Louis Emery, Peter Fisher, George Flanagan, Tony Favale, Gary Feldman, Buck Field, David Finley, Bonnie Fleming, Brian Foster, Emil Frlez, Kenneth Ganezer, Consolato Gattuso, Stephen Geer, Norman Gelfand, Terry Goldman, Keith Gollwitzer, Maury Goodman, Paul Grannis, Daniel Green, Terry Grimm, Alan Hahn, Reidar Hahn, Michael Harrison, Ayman Hawari, David Hertzog, Robert Hirosky, David Hitlin, Richard Holmes, Maxine Hronek, Patrick Hurh, Jim Hylen, Gerald Jackson, Andreas Jansson, David Johnson, Jeffrey Johnson, Rol Johnson, John Johnstone, Chang Kee Jung, Steven Kahn, Peter Kammel, Yuri Kamyshkov, David Kawall, Kara Keeter, Christina Keller, Robert Kephart, Harold Kirk, David Kirkby, Arkadiy Klebaner, Sergey Korenev, Ioanis Kourbanis, Andreas Kronfeld, Krishna Kumar, James Lackey, Kenneth Lande, Valeri Lebedev, Kevin Lesko, Tony Leveling, Mats Lindroos, Laurence Littenberg, Vladimir Lobashev, Kevin Lynch, William Marciano, Daniel Marlow, John Marriner, Michael Martens, Dongming Mei, Mark Messier, Peter Meyers, Phillip Miller, Shekhar Mishra, Hugh Montgomery, Kevin Munday, Homer Neal, David Neuffer, Andrew Norman, Kenneth Olsen, Peter Ostroumov, Satoshi Ozaki, Robert Palmer, Vaia Papadimitriou, Stephen Parke, Kent Paschke, Ralph Pasquinelli, Todd Pedlar, Stephen Peggs, Susan Pfiffner, Henryk Piekarz, Thomas Phillips, Dinko Pocanic, Milorad Popovic, James Popp, Eric Prebys, Chris Quigg, Regina Rameika, Ronald Ray, Lee Roberts, Tom Roberts, Natalie Roe, Jerome Rosen, Marc Ross, Howard Rubin, Randy Ruchti, Richard Sah, Niki Saoulidou, Kate Scholberg, Alan Schwartz, Yannis Semertzidis, Abraham Seiden, Melvyn Shochet, Marilyn Smith, Henry Sobel, Paul Souder, Giulio Stancari, Michelle Stancari, Raymond Stefanski, James Stone, Sheldon Stone, Michael Syphers, Alex Tarasiewicz, Eddie Tatar, Rex Tayloe, Alvin Tollestrup, Yagmur Torun, Todd Treado, Michael Turner, Fred Ullrich, John Urbin, Alexander Valishev, Leonid Vorobiev, Nick Walker, Robert Webber, Bernard Wehring, Steven Werkema, Christopher White, Herman White, James Whitmore, David Wildman, Kent Alan Williams, William Willis, Phil Winkle, William Snow, Stanley Wojcicki, Hitoshi Yamamoto, Peter Yamin, Katsuya Yonehara, Cary Yoshikawa, Albert Young, Michael Zeller, Michael Zisman, Alexander Zlobin, and Robert Zwaska

457

Total All Countries Exports of Crude Oil and Petroleum Products by  

U.S. Energy Information Administration (EIA) Indexed Site

Destination: Total All Countries Afghanistan Albania Algeria Andora Angola Anguilla Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahama Islands Bahrain Barbados Belarus Belgium Belize Benin Bolivia Bosnia and Herzegovina Brazil Brunei Bulgaria Burma Bermuda Cambodia Cameroon Canada Cayman Islands Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Costa Rica Croatia Cyprus Czech Republic Denmark Djbouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Fiji Finland France French Guiana French Pacific Islands Gabon Georgia, Republic of Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guinea Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Israel Italy Ivory Coast Jamaica Japan Jordon Kazakhstan Kenya Korea, South Korea, North Kyrgyzstan Kutubu Kuwait Latvia Lebanon Liberia Libya Lithuania Macau S.A.R. Macedonia Madagascar Malaysia Maldives Mali Malta Marshall Islands Mauritania Mauritius Mexico Micronesia, Federated States of Midway Islands Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Namibia Nepal Netherlands Netherlands/Antilles New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norway Oman Pakistan Panama Papau New Guinea Paracel Islands Paraguay Peru Philippines Poland Portugal Puerto Rico Qatar Romania Russia St. Kitts and Nevis St. Lucia St. Pierre and Miquelon St. Vincent and the Grenadines Samoa San Marino Saudi Arabia Senegal Serbia and Montenegro Seychelles Sierra Leone Singapore Slovakia Slovenia Soloman Islands South Africa Spain Spratly Islands Sri Lanka Sudan Suriname Swaziland Sweden Switzerland Syria Taiwan Tanzania Thailand Tonga Togo Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Uganda Ukraine United Arab Emirates United Kingdom Uruguay Uzbekistan Vanuatu Venezuela Vietnam Virgin Islands (British) Virgin Islands (U.S.) Yemen Yugoslavia Zambia Period-Unit: Monthly-Thousand Barrels Monthly-Thousand Barrels per Day Annual-Thousand Barrels Annual-Thousand Barrels per Day

458

Perception vs. reality in deep-water exploration  

SciTech Connect

The common perception in exploration is that deep-water sands are predominantly a product of low- and high-density turbidity currents, and that submarine-fan models with channel/levee and lobe elements are the norm. The reality, however, is that deep-water systems are extremely complex and variable in terms of depositional processes and sand-body geometries. For example, the Bourna Sequence, composed of T{sub a}, T{sub b}, T{sub c}, T{sub d}, and T{sub e} divisions, is believed to be the product of a turbidity current. However, recent core and outcrop studies show that the complete and partial Bouma sequences also can be explained by processes other than turbidity currents, such as sandy debris flows (i.e., {open_quotes}T{sub a}{close_quotes}) and bottom-current reworking (i.e., {open_quotes}T{sub b}, T{sub c} and T{sub d}{close_quotes}). Massive sands are interpreted routinely as high-density turbidites, but the reality is that the term {open_quotes}high-density turbidity current{close_quotes} commonly refers to sandy debris flow in terms of flow theology and sediment-support mechanism. Deep-water sequences in the North Sea, Norwegian Sea, Offshore Gabon, Offshore Nigeria, Gulf of Mexico, and the Ouachita Mountains are generally considered to be turbidite-rich submarine fans. However, the reality is that these sequences are composed predominantly of sandy slumps and debris flows, not turbidites. Fan models are attractive to explorationists because of their predictable sheet-like geometries; however, these simplistic conceptual models are obsolete because they defy reality. Although the turbidite paradigm is alive and well for now in the minds of many sedimentologists and sequence stratigraphers, the turbidites themselves that form the foundation for fan models are becoming an endangered facies!

Shanmugam, G. [Mobil Exploration & Producing Technical Center, Dallas, TX (United States)

1996-12-31T23:59:59.000Z

459

Perception vs. reality in deep-water exploration  

SciTech Connect

The common perception in exploration is that deep-water sands are predominantly a product of low- and high-density turbidity currents, and that submarine-fan models with channel/levee and lobe elements are the norm. The reality, however, is that deep-water systems are extremely complex and variable in terms of depositional processes and sand-body geometries. For example, the Bourna Sequence, composed of T[sub a], T[sub b], T[sub c], T[sub d], and T[sub e] divisions, is believed to be the product of a turbidity current. However, recent core and outcrop studies show that the complete and partial Bouma sequences also can be explained by processes other than turbidity currents, such as sandy debris flows (i.e., [open quotes]T[sub a][close quotes]) and bottom-current reworking (i.e., [open quotes]T[sub b], T[sub c] and T[sub d][close quotes]). Massive sands are interpreted routinely as high-density turbidites, but the reality is that the term [open quotes]high-density turbidity current[close quotes] commonly refers to sandy debris flow in terms of flow theology and sediment-support mechanism. Deep-water sequences in the North Sea, Norwegian Sea, Offshore Gabon, Offshore Nigeria, Gulf of Mexico, and the Ouachita Mountains are generally considered to be turbidite-rich submarine fans. However, the reality is that these sequences are composed predominantly of sandy slumps and debris flows, not turbidites. Fan models are attractive to explorationists because of their predictable sheet-like geometries; however, these simplistic conceptual models are obsolete because they defy reality. Although the turbidite paradigm is alive and well for now in the minds of many sedimentologists and sequence stratigraphers, the turbidites themselves that form the foundation for fan models are becoming an endangered facies

Shanmugam, G. (Mobil Exploration Producing Technical Center, Dallas, TX (United States))

1996-01-01T23:59:59.000Z

460

Evolution and hydrocarbon prospectivity of the Douala Basin, Cameroon  

SciTech Connect

The Douala Basin is a stable Atlantic-type, predominantly offshore basin and forms the northern terminal of a series of divergent passive margin basins located on the Southwest coast of Africa that resulted from the rifting of Africa from South America. An integration of new studies including detailed well, biostratigraphic, sedimentological, geochemical and seismic data has confirmed that the tectonostratigraphic evolution in the basin can be broadly divided into three developmental phases: the Syn-rift, Transitional and Drift phases. This basis has been explored intermittently for hydrocarbon for the past 40 years with two important gas fields discovered and no commercial oil found as yet. This early gas discovery and a corresponding lack of any significant oil discovery, led early operators to term this basin as essentially a gas province. However, recent geochemical analyses of various oil-seeps and oil samples from various localities in the basin, using state-of-the-art techniques have demonstrated that this basin is a potential oil prone basin. The results show that two models of oil sourcing are possible: a Lower Cretaceous lacustrine saline source, similar to the presalt basins of Gabon or a marine Upper Cretaceous to lower Tertiary source, similar to the neighbouring Rio del Rey/Niger Delta Complex. Additionally, seismic reflection data also demonstrate a variety of reservoir horizons, including submarine fans, channel-like features and buried paleohighs, all interbedded within regionally extensive, uniformity bounded mudstone units. Hence, it is now quite evident that within this basin, there exist a vast potential for a wide variety of stratigraphic, structural and combined traps. These features, which are considered to have significantly enhanced the prospectivity of this basin, will be discussed in this paper.

Batupe, M.; Tampu, S.; Aboma, R.S. [National Hydrocarbons Corporation, Yaounde (Cameroon)

1995-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "gabon mauri tania" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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461

African oil: past, present, and future  

SciTech Connect

Nearly 50% of Africa's total area is comprised of sedimentary basins. These basins number more than 80 and contain an estimated proven hydrocarbon reserve of 89 billion bbl (oil equivalent), about 8% of the world's resources. Of these reserves, 68% occur in North Africa, 22% in Nigeria, and 7% in the Aptian Salt basin, which encompasses the coastal parts of Cameroon, Gabon, Congo, Zaire, and Angola. The first discovery of hydrocarbons in Africa was in Egypt in 1886, and the most recent discoveries are in the Gulf of Guinea and the interior rift basins of central Africa. Africa's basins can be classified into six types. However, each type has modifiers and most basins have evolved through a polycyclic history from one type to another. Giant hydrocarbons accumulations are related to marine source strata and large, non-giant pools to nonmarine source strata. All sizes of fields occur in areas with marine source rocks, but giant fields very rarely occur in areas where nonmarine source rocks are thought to predominate. Estimates of future potential reserves for each basin have been established by conventional basin assessment, play assessment, and volumetric yield methods, where data were sufficient. Giant accumulations will be found in the future in Tunisia and Egypt, in east Africa (if a deeper Karroo-play is pursued), and in the interior sag basins of central Africa, which are remote and unexplored. Some chance of finding one or two giant fields exists in Algeria and Libya, and Aptian Salt basin, the Gulf of Guinea, and the interior rift basins of central Africa, but generally only large accumulations will be found.

Clifford, A.

1984-09-01T23:59:59.000Z

462

Fission product studies in the symmetric mass region  

SciTech Connect

Fission yields can be determined by radiochemical or mass spectrometric techniques. Mass spectrometry can provide more accurate data, particularly in the symmetric mass region where the probability of fission is low and uncertainties in isometric ratios occur. Fine structure in the mass distribution can usually only be determined by mass spectrometry. Many of the elements in the valley of symmetry have high ionization potentials and are therefore difficult to measure by solid source mass spectrometry. Analytical techniques have been developed to provide the sensitivity required to measure the small sample sizes available in fission product studies. Cumulative fission yields for ruthenium, palladium, cadmium, tin, and tellurium have been measured by mass spectrometry for the thermal and epicadmium fission of {sup 233}U and for thermal and epicadmium fission of {sup 239}Pu. These fission yields, which span the mass range 101 {le} A {le} 130, can be combined to give a mass yield curve for {sup 235}U in the valley region, which is symmetrical about A = 116.8 and exhibits fine structure in the mass 113 to 114 region. Fine structure in {sup 233}U is also present at mass 111. Mass spectrometric determinations of the fission yields of uranium ore at the Oklo mine site in Gabon enable the nuclear parameters of this natural reactor to be evaluated. This in turn enables the amounts of fission products produced in the reactor zone and the surrounding rocks enables an assessment to be made of the efficiency of this geological repository for containing radioactive waste. The elemental abundances can be determined by isotope dilution mass spectrometry. Unfortunately, the paucity of good fission yield data available for {sup 238}U by fast neutrons is a severe constraint in this evaluation.

De Laeter, J.R.; Rosman, K.J.R.; Loss, R.D. [Curtin Univ. of Technology, Perth (AU)

1993-05-01T23:59:59.000Z

463

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

U.S. Energy Information Administration (EIA) Indexed Site

Country: Total All Countries Persian Gulf OPEC Algeria Angola Ecuador Iran Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Afghanistan Albania Andora Anguilla Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bolivia Bosnia and Herzegovina Brazil Brunei Bulgaria Burma Cambodia Cameroon Canada Cayman Islands Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Cook Islands Costa Rica Croatia Cyprus Czech Republic Denmark Djbouti Dominica Dominican Republic Egypt El Salvador Equatorial Guinea Ethiopia Eritrea Estonia Fiji Finland France French Pacific Islands French Guiana Gabon Georgia, Republic of Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guinea Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Ireland Israel Italy Ivory Coast Jamaica Japan Jordan Kazakhstan Kenya Korea, South Kutubu Kyrgyzstan Latvia Lebanon Liberia Lithuania Macau S.A.R. Macedonia Madagascar Malaysia Maldives Mali Malta Marshall Islands Mauritania Mauritius Mexico Micronesia, Federated States of Midway Islands Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Namibia Nepal Netherlands Netherlands Antilles New Caledonia New Zealand Nicaragua Niger Niue Norway Oman Pakistan Panama Papau New Guinea Paracel Islands Paraguay Peru Philippines Poland Portugal Puerto Rico Romania Russia St. Kitts and Nevis St. Lucia St. Pierre and Miquelon St. Vincent and the Grenadines Samoa San Marino Senegal Serbia and Montenegro Sierra Leone Singapore Slovakia Slovenia South Africa Spain Spratly Islands Sri Lanka Suriname Swaziland Sweden Switzerland Syria Taiwan Tanzania Thailand Togo Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Uganda Ukraine United Kingdom Uruguay Uzbekistan Vanuatu Vietnam Virgin Islands (British) Virgin Islands (U.S.) Yemen Yugoslavia Other Non OPEC Period-Unit: Monthly-Thousand Barrels per Day Annual-Thousand Barrels per Day

464

Newsletter Signup Form  

NLE Websites -- All DOE Office Websites (Extended Search)

EETD NEWSLETTER - MANAGE SUBSCRIPTIONS EETD NEWSLETTER - MANAGE SUBSCRIPTIONS (red fields are required) Manage subscriptions: Subscribe Unsubscribe Name E-Mail Affiliation Address Address (line 2) City State/Province Zip/Postal Code Country (please select a country) none Afghanistan Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegowina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d'Ivoire Croatia (Hrvatska) Cuba Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic East Timor Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France France, Metropolitan French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Heard and Mc Donald Islands Holy See (Vatican City State) Honduras Hong Kong Hungary Iceland India Indonesia Iran (Islamic Republic of) Iraq Ireland Israel Italy Jamaica Japan Jordan Kazakhstan Kenya Kiribati Korea, Democratic People's Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People's Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macau Macedonia, The Former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia, Federated States of Moldova, Republic of Monaco Mongolia Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands Netherlands Antilles New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Northern Mariana Islands Norway Oman Pakistan Palau Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Reunion Romania Russian Federation Rwanda Saint Kitts and Nevis Saint LUCIA Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Seychelles Sierra Leone Singapore Slovakia (Slovak Republic) Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands Spain Sri Lanka St. Helena St. Pierre and Miquelon Sudan Suriname Svalbard and Jan Mayen Islands Swaziland Sweden Switzerland Syrian Arab Republic Taiwan, Province of China Tajikistan Tanzania, United Republic of Thailand Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States United States Minor Outlying Islands Uruguay Uzbekistan Vanuatu Venezuela Viet Nam Virgin Islands (British) Virgin Islands (U.S.) Wallis and Futuna Islands Western Sahara Yemen Yugoslavia Zambia Zimbabwe

465

Initial Evaluation of Processing Methods for an Epsilon Metal Waste Form  

SciTech Connect

During irradiation of nuclear fuel in a reactor, the five metals, Mo, Pd, Rh, Ru, and Tc, migrate to the fuel grain boundaries and form small metal particles of an alloy known as epsilon metal ({var_epsilon}-metal). When the fuel is dissolved in a reprocessing plant, these metal particles remain behind with a residue - the undissolved solids (UDS). Some of these same metals that comprise this alloy that have not formed the alloy are dissolved into the aqueous stream. These metals limit the waste loading for a borosilicate glass that is being developed for the reprocessing wastes. Epsilon metal is being developed as a waste form for the noble metals from a number of waste streams in the aqueous reprocessing of used nuclear fuel (UNF) - (1) the {var_epsilon}-metal from the UDS, (2) soluble Tc (ion-exchanged), and (3) soluble noble metals (TRUEX raffinate). Separate immobilization of these metals has benefits other than allowing an increase in the glass waste loading. These materials are quite resistant to dissolution (corrosion) as evidenced by the fact that they survive the chemically aggressive conditions in the fuel dissolver. Remnants of {var_epsilon}-metal particles have survived in the geologically natural reactors found in Gabon, Africa, indicating that they have sufficient durability to survive for {approx} 2.5 billion years in a reducing geologic environment. Additionally, the {var_epsilon}-metal can be made without additives and incorporate sufficient foreign material (oxides) that are also present in the UDS. Although {var_epsilon}-metal is found in fuel and Gabon as small particles ({approx}10 {micro}m in diameter) and has survived intact, an ideal waste form is one in which the surface area is minimized. Therefore, the main effort in developing {var_epsilon}-metal as a waste form is to develop a process to consolidate the particles into a monolith. Individually, these metals have high melting points (2617 C for Mo to 1552 C for Pd) and the alloy is expected to have a high melting point as well, perhaps exceeding 1500 C. The purpose of the work reported here is to find a potential commercial process with which {var_epsilon}-metal plus other components of UDS can be consolidated into a solid with minimum surface area and high strength Here, we report the results from the preliminary evaluation of spark-plasma sintering (SPS), hot-isostatic pressing (HIP), and microwave sintering (MS). Since bulk {var_epsilon}-metal is not available and companies could not handle radioactive materials, we prepared mixtures of the five individual metal powders (Mo, Ru, Rh, Pd, and Re) and baddeleyite (ZrO{sub 2}) to send the vendors of SPS, HIP, and MS. The processed samples were then evaluated at the Pacific Northwest National Laboratory (PNNL) for bulk density and phase assemblage with X-ray diffraction (XRD) and phase composition with scanning electron microscopy (SEM). Physical strength was evaluated qualitatively. Results of these scoping tests showed that fully dense cermet (ceramic-metal composite) materials with up to 35 mass% of ZrO{sub 2} were produced with SPS and HIP. Bulk density of the SPS samples ranged from 87 to 98% of theoretical density, while HIP samples ranged from 96 to 100% of theoretical density. Microwave sintered samples containing ZrO{sub 2} had low densities of 55 to 60% of theoretical density. Structurally, the cermet samples showed that the individual metals alloyed in to {var_epsilon}-phase - hexagonal-close-packed (HCP) alloy (4-95 mass %), the {alpha}-phase - face-centered-cubic (FCC) alloy structure (3-86 mass %), while ZrO{sub 2} remained in the monoclinic structure of baddeleyite. Elementally, the samples appeared to have nearly uniform composition, but with some areas rich in Mo and Re, the two components with the highest melting points. The homogeneity in distribution of the elements in the alloy is significantly improved in the presence of ZrO{sub 2}. However, ZrO{sub 2} does not appear to react with the alloy, nor was Zr found in the alloy.

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

2012-06-11T23:59:59.000Z