Sample records for african american black

  1. of October 2002 African Americans

    E-Print Network [OSTI]

    Kammen, Daniel M.

    the impact of air pollution from coal-fired power plants upon the African American community. The Black

  2. Professor, Communication Studies and African American Studies

    E-Print Network [OSTI]

    Miami, University of

    Professor, Communication Studies and African American Studies Director of African American of Communication and Theatre Arts and Director of the African American Studies Program at the University of Puget Book Chapter Award from the African American Communication and Culture Division and the Black Caucus

  3. Precedents in African American architecture

    E-Print Network [OSTI]

    Sass, Lawrence

    1994-01-01T23:59:59.000Z

    As a sub-sets of American culture, African Americans have not been able to offer culturally specific architectural elements to the design process because the history of African American form and space has not been recognized ...

  4. Heart Healthy Home Cooking African American Style

    E-Print Network [OSTI]

    Bandettini, Peter A.

    Heart Healthy Home Cooking African American Style With Every Heartbeat Is Life #12;#12;Heart Recipe Substitutions for Heart Healthy Cooking at the heart of African American family life and special celebrations. This recipe book brings together many

  5. african black coucals: Topics by E-print Network

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

    Bernard, Rachel Deborah 2012-01-01 22 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  6. The African-American house as a vehicle of discovery for an African-American architecture

    E-Print Network [OSTI]

    Clarke, Charles E. (Charles Edward)

    1996-01-01T23:59:59.000Z

    The purpose of this research is three-fold: (1) This thesis seeks to uncover evidence of a distinctly African-American architectural form. The primary building type observed will be the house, or the housing of African-Americans ...

  7. african american family: Topics by E-print Network

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

    Williams II, Ronald Cartell 2011-01-01 17 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  8. african american health: Topics by E-print Network

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

    skin Pichon, Latrice Crystal 2008-01-01 15 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  9. african american children: Topics by E-print Network

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

    Williams II, Ronald Cartell 2011-01-01 15 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  10. african american adults: Topics by E-print Network

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

    Williams II, Ronald Cartell 2011-01-01 10 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  11. african american families: Topics by E-print Network

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

    Williams II, Ronald Cartell 2011-01-01 17 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  12. Alone in the profession of arms: America's first three African American West Point graduates

    E-Print Network [OSTI]

    James, Jeremy Wayne

    2009-05-15T23:59:59.000Z

    effectively as military commanders. In the late nineteenth century three exceptional African American men successfully challenged this notion. Henry Flipper, John Alexander and Charles Young became the first three black graduates of the U.S. Military Academy...

  13. Home Front as Warfront: African American World War I Drama

    E-Print Network [OSTI]

    Egging, Anna Katherine

    2010-08-31T23:59:59.000Z

    This dissertation recovers little-known African American World War I plays that blur the boundary between the home front and warfront. I argue that with this focus, the plays wage their own war for African American citizenship ...

  14. A Qualitative Description of African American Women's Breastfeeding Experiences

    E-Print Network [OSTI]

    Spencer, Becky

    2012-08-31T23:59:59.000Z

    The low rates of breastfeeding among African American women in the U.S. is a poorly understood, persistent disparity that contributes to higher incidences of morbidity and mortality for African Americans across the lifespan. ...

  15. Voices of Four African American Female Clergy and Their Perceptions of Gender, Equity, and Leadership Styles in the African American Urban Church

    E-Print Network [OSTI]

    Ogletree, Evelyn 1954-

    2012-11-30T23:59:59.000Z

    (Ecklund, 2006). Gradual improvements have occurred in recent years, but discrimination, based on gender, is still present in mass across Black Protestant denominations in the United States (Gallagher, 2004). These instances of oppression have reduced... is that discrimination directed at this group comes from African American men rather than from White men and women. These are the same type of men who themselves have suffered from incidences of discrimination. While nearly half of Black pastors approve of women...

  16. A. To promote African American faculty, staff and student success. B. To expand and share knowledge of African American contributions to society.

    E-Print Network [OSTI]

    Su, Xiao

    of History and African American Studies, SJSU Barack Obama, President United States of America The African Records of Urgent Inventions of African American in the USA. Speaker: Dr. Steven Millner, Professor

  17. african american girls: Topics by E-print Network

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

    underperformed relative to boys in science, technology, engineering, and mathematics. Brown, Christia Spears; Leaper, Campbell 2010-01-01 171 Rodney K Odom African American...

  18. The Puzzle of Hypertension in African-Americans56 Scientific American February 1999 The Puzzle of

    E-Print Network [OSTI]

    Fraden, Seth

    The Puzzle of Hypertension in African-Americans56 Scientific American February 1999 The Puzzle of Hypertension in African-Americans by Richard S. Cooper, Charles N. Rotimi and Ryk Ward N early all Americans undergo a steady rise in blood pressure with age. Almost 25 percent cross the line into hypertension

  19. Explorative study of African Americans and internet dating

    E-Print Network [OSTI]

    Spates, Kamesha Sondranek

    2005-02-17T23:59:59.000Z

    EXPLORATIVE STUDY OF AFRICAN AMERICANS AND INTERNET DATING A Thesis by KAMESHA SONDRANEK SPATES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2004 Major Subject: Sociology EXPLORATIVE STUDY OF AFRICAN AMERICANS AND INTERNET DATING A Thesis by KAMESHA SONDRANEK SPATES...

  20. african american adolescents: Topics by E-print Network

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

    Orders. 12;On the Move to Better Heart Health for African Americans Delicious Section 1 Knowledge Is Power: Know Your Risk for Heart Disease 4 Section 2 Act in Time to Heart...

  1. african american donors: Topics by E-print Network

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

    AFST 515: African GEOG 323: Urban Geography HIST 437: Soldiers Fought: War and American Society HIST 525: Space, Place Papautsky, Ian 198 Donor Relations 2.0: Using Web 2.0 to...

  2. Residential insecticide exposure during pregnancy among African American and

    E-Print Network [OSTI]

    Residential insecticide exposure during pregnancy among African American and Dominican mothers and newborns from NYC R Whyatt, V Rauh, H Andrews, D Barr, D Camann, F Perera #12;Residential Pesticide Use 85 for Children's Environmental Health #12;Regulatory action to phase out residential use of chlorpyrifos

  3. Commemorating Black History: Contributions of African Americans...

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

    The site was used to produce plutonium for the bomb that brought an end to World War II. During that era, people from all over the country came to Hanford, ultimately...

  4. Race Matters: Disparities in African-American Children with Attention Deficit Hyperactivity Disorder

    E-Print Network [OSTI]

    Omiecinski, Curtis

    . As defined by the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders) inattention, (2) impulsivity, and (3) hyperactivity, the American Psychiatric Association (APA) believed145 145 Race Matters: Disparities in African-American Children with Attention Deficit Hyperactivity

  5. Bourdieuian Analysis on African Americans’ Under-representation at Parks and Outdoor Recreation

    E-Print Network [OSTI]

    Lee, KangJae

    2013-07-18T23:59:59.000Z

    focuses on African Americans? non-visitation to Cedar Hill State Park (CHSP) located in Cedar Hill, Texas. Although the park is located near predominantly African American communities, the majority of CHSP visitors are White Americans (Esri, 2010... unemployment rate (16%) among any 8 other racial groups in 2010 (U.S. Bureau of Labor Statistics, 2011). Thus, marginality hypothesis posited that African Americans? marginal social position limits their access to recreational resources...

  6. BLACK HISTORY MONTH

    Broader source: Energy.gov [DOE]

    Black History Month is an annual celebration of achievements by black Americans and a time for recognizing the central role of African Americans in U.S. history. The event grew out of “Negro History Week,” created by historian Carter G. Woodson and other prominent African Americans. Other countries around the world, including Canada and the United Kingdom, also devote a month to celebrating black history.

  7. ACCEPTABLE HUMANITIES (HU) COURSES * African American Studies

    E-Print Network [OSTI]

    AR 251 Ancient Maya Civilization Art History Any 100-, 200- or 300-level CAS AH course Cinema Studies CAS CI 101 History of Global Cinema 1: Origins through 1950s CAS CI 102 History of Global Cinema 2 in American Literature CAS EN 128 Representing Boston CAS EN 130 Literature and Science CAS EN 141 Literary

  8. Reducing Stereotype Threat in Academically At-Risk African-Americans Students: A Self-

    E-Print Network [OSTI]

    Simmons, Crystal Marie

    2011-01-01T23:59:59.000Z

    the effects of stereotype threat on African American collegeThe role of stereotype threat. Psychological Science, 12,and  White:  Stereotype  threat and the  race  gap  on  

  9. E-Print Network 3.0 - african american infants Sample Search...

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

    Environmental Sciences and Ecology ; Biology and Medicine 65 LEADERSHIP FORUM "Health Care Reform -Leadership in a Time of Chaos" Summary: . As the first African-American...

  10. THE CRISIS OF ECONOMIC INSECURITY FOR AFRICAN-AMERICAN AND LATINO SENIORS

    E-Print Network [OSTI]

    Snider, Barry B.

    THE CRISIS OF ECONOMIC INSECURITY FOR AFRICAN-AMERICAN AND LATINO SENIORS Tatjana Meschede Laura combined with rising costs of basic expenses has resulted in a dramatic rise in senior economic insecurity insecurity. More than half (52 percent) of African-American and 56 percent of Latino seniors are economically

  11. Urban African-American Single Mothers Using Resiliency And Racial Socialization To Influence Academic Success In Their Young Sons

    E-Print Network [OSTI]

    Henderson-Hubbard, Lisa Doris

    2012-02-14T23:59:59.000Z

    ?????????????????????.. 63 India?s Story?????????????????????. 65 Patricia?s Story...???????????????????... 68 Shaun?s Story???????????????????....... 70...,809,000 African-American children were being raised by African-American single mothers due to absent husbands, the mother being widowed, divorced or simply having never married (U.S. Census, 2000). In 2000, there were 3,814,000 African- American female headed...

  12. Infected Lives: A Heideggerian Phenomenological Study of Young African American Human Immunodeficiency Virus-Positive Women

    E-Print Network [OSTI]

    Peltzer, Jill Nicole

    2012-05-31T23:59:59.000Z

    Human Immunodeficiency Virus (HIV) infection continues to be a significant health concern for African American women, as they comprise 64% of HIV-positive women in the US. The purpose of this Heideggerian phenomenological ...

  13. Facing Racism at 30,000 Feet: African American Pilots, Flight Attendants, and Emotional Labor

    E-Print Network [OSTI]

    Evans, Louwanda

    2012-07-16T23:59:59.000Z

    In this qualitative study, I examine the experiences of African American pilots and flight attendants with emotional labor. Integral to existing theories of emotional labor is the incorporation of voices of color and their contemporary movement...

  14. School racial composition and academic performance of african american students in an urban school district

    E-Print Network [OSTI]

    Osagie, Andree O.

    2009-05-15T23:59:59.000Z

    The purpose of this study was to investigate the differences in the academic performance of economically disadvantaged African-American students attending schools with distinct racial composition in selected inner-city Texas high schools based...

  15. High School Dropout: Perceptions and Voices of African American and Hispanic Students

    E-Print Network [OSTI]

    Baker, Wanda

    2011-08-08T23:59:59.000Z

    The purpose of this study was to investigate the perceptions of African American and Hispanic students who dropped out of school while exploring their schooling experiences and the factors they believe contributed to their decision to drop out...

  16. The Leadership Perspectives of African American Males after Participation in a Leadership Development Program

    E-Print Network [OSTI]

    Preston, Tammie M

    2014-10-14T23:59:59.000Z

    This study investigated the perceptions of African American undergraduate males who attend a predominately White institution in the southwest as they concern leadership after participation in a leadership development program and the influence...

  17. Case Study of Rural High School Math Teachers of African American Students

    E-Print Network [OSTI]

    Jones, Marcus Gee

    2014-05-03T23:59:59.000Z

    The purpose of this qualitative study was to understand the reflective qualities of high school math teachers of African American students in a rural setting. The case study approach was chosen to capture the voices and instructional practices...

  18. The Puzzle of Discipline: An Examination of African American Disproportionality in School Discipline and Student Performance

    E-Print Network [OSTI]

    Butler, Bettie Ray

    2012-07-16T23:59:59.000Z

    The intent of this study was to systematically investigate the relationship between African American disproportionality in school discipline which is the overrepresentation of students for exclusionary discipline practices (i.e., out-of-school...

  19. African American Federal Executive Association, Inc. 9th Annual Training Workshop

    Broader source: Energy.gov [DOE]

    The African American Federal Executive Association, Inc. (AAFEA) will hold its 9th Annual Training Workshop (TW) September 16-17, 2013 in Washington, DC.  The theme of this year’s TW is “LEADING...

  20. Welfare and Conversion: The Catholic Church in African American Communities in the South, 1884-1939

    E-Print Network [OSTI]

    Collopy, William

    2012-02-14T23:59:59.000Z

    : An Investigation of Catholic Activity in Behalf of the Negroes in the United States and a Survey of the Present Condition of the Colored Missions. Gillard dedicated his work, which countless students of the African American apostolate have referenced over...; Associated Archives of St. Mary?s Seminary and University; Archives of the Society of the Divine Word; Archives of the Sisters of the Holy Family; Reginald F. Lewis Museum of Maryland African American History and Culture; Archives of the Congregation...

  1. African American Student Athletes at Predominately White Institutions and Motivational Factors That Influence Graduate and Professional Degrees 

    E-Print Network [OSTI]

    Rutledge, Michael E

    2015-01-22T23:59:59.000Z

    This study highlights African American male student athletes at PWI’s, and their motivational factors that influenced persistence into graduate school. The following research questions guided this study: (a) How do African ...

  2. Radical Cosmopolitanism: W. E. B. Du Bois, Germany, and African American Pragmatist Visions for Twenty-First Century Europe

    E-Print Network [OSTI]

    Lenz, Günter H.

    2012-01-01T23:59:59.000Z

    W. E. B. Du Bois, Germany, and African American PragmatistAmericans, Africa, and Germany in the Modern  World.   Ed.  W.E.B.  Du Bois in Nazi Germany, 1936. ” Amerikastudien/

  3. "When you want to give up, you want to give in": Mentoring perceptions of African American women doctoral students at a predominately White institution

    E-Print Network [OSTI]

    Fowler, Rhonda Michelle

    2013-08-08T23:59:59.000Z

    Mentoring in graduate education is considered an important and essential part of graduate education. The journey to the doctorate for African American students, especially for African American women, comes with many hurdles and obstacles. Mentorship...

  4. Factor influencing the recruitment and retention of undergradutes as reported by African-American graduates of Texas A&M University between May 1998 and December 2003 

    E-Print Network [OSTI]

    Harnsberry, John Gabriel

    2005-11-01T23:59:59.000Z

    The purpose of this study was to examine the influential effects various factors had on the recruitment and the retention of African American undergraduates at Texas A&M University, as perceived by those African Americans ...

  5. african americans living: Topics by E-print Network

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

    of human African trypanosomiasis (HAT Schnaufer, Achim 375 Developing solutions for sustainable living-the Urban Living Laboratory: The world's largest 'living laboratory'...

  6. Introduction to Exporting American Dreams: Thurgood Marshall's African Journey

    E-Print Network [OSTI]

    Dudziak, Mary L.

    2009-01-01T23:59:59.000Z

    reprinted in Thurgood Marshall: His Speeches, Writings,1995). Very little is written on Marshall’s work on AfricanJuan Williams brie?y covers Marshall’s trips to Africa in

  7. Middle Class and Middle School: Does Opportunity Knock for African American Students?

    E-Print Network [OSTI]

    Mooney, Patricia 1960-

    2012-12-10T23:59:59.000Z

    the shortcomings in NCLB (2001), President Barack Obama signed The American Recovery and Reinvestment Act (ARRA) into law. Race to the Top (RTTT) was established by the AARA as a competitive grant program to encourage and reward States to participate...MIDDLE CLASS AND MIDDLE SCHOOL: DOES OPPORTUNITY KNOCK FOR AFRICAN AMERICAN STUDENTS? A Record of Study by Patricia Ann Mooney Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  8. A REVOLUTION WITHIN A REVOLUTION: AFRICAN AMERICAN AND WOMEN BEAT POETS

    E-Print Network [OSTI]

    Abernethy, Olivia

    2008-08-19T23:59:59.000Z

    The objective of this research was to shed light on African Americans and Women poets influenced by the Beat Generation. I chose LeRoi Jones/Amiri Baraka, Diane di Prima and Bob Kaufman. I researched each poet's background, poetics, published...

  9. african american students: Topics by E-print Network

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

    Place Papautsky, Ian 239 Snow snakes and science agency: empowering American Indian students through a culturally-based science, technology, engineering, and mathematics...

  10. Commemorating Black History: Contributions of African Americans to the

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave the White Flag"DepartmentToward Targets ofDOEComing On

  11. Understanding the experiences of African American outdoor enthusiasts

    E-Print Network [OSTI]

    Cavin, Drew Alan

    2009-05-15T23:59:59.000Z

    and fear, being the “only one, ” discrimination and “reverse curiosity,” assumption of novice status, and balancing identity between being Black, and “acting White.” In the fourth study I analyze this same study group, but explore their experiences of being...

  12. African-American food and social relations in Bryan, Texa: a culinary ethnography at the community cafe

    E-Print Network [OSTI]

    Markowitz, Bradford Alan

    2000-01-01T23:59:59.000Z

    The aim of this thesis is to demonstrate how food mediates social relations at two African-American cafes in Bryan, Texas. To accomplish this goal, this thesis utilizes ethnographic data collected from the methodological perspective of the food...

  13. INTERACTIVE READING EXPERIENCES OF AFRICAN AMERICAN FATHERS AND SOCIAL FATHERS AND THEIR 4-AND 5-YEAR-OLD CHILDREN

    E-Print Network [OSTI]

    JACKSON, CLARISSA RENEE'

    2012-08-31T23:59:59.000Z

    The purpose of this mixed-methods study was to investigate the patterns of book choice and interaction during book reading sessions of six African American fathers and social fathers and their 4- to 5-year-old children. ...

  14. The effects of neighborhood environments on the level of physical activity among older african american women in Texas 

    E-Print Network [OSTI]

    Shin, Woo Hwa

    2009-05-15T23:59:59.000Z

    The older African American women living Texas fall into one of the most inactive population segments. Recently, the importance of socio-ecological models on human health behavior and more complex associations between ...

  15. The Relationship Between Teachers' Preparation and Perceived Level of Technology Use in Mathematics With Middle School African American Males

    E-Print Network [OSTI]

    Mason, Sherrie Dee

    2012-10-19T23:59:59.000Z

    that the level of teachers' preparedness had an influence on the use and implementation of technology use in the classroom. Teachers' preparedness in the use of instructional technology was related to their African American male students' mathematical achievement...

  16. Racial Narratives, Group Identity, and African-American Political Behavior

    E-Print Network [OSTI]

    Delehanty, William

    2010-05-13T23:59:59.000Z

    ” is dependent upon human agreement and the understandings human agents bring to questions of what it means to know something about social, political and economic life. Knowledge is not decipherable without some reference point in human social relations.... The fifth chapter continues the historical analysis by looking at racial relations from 1965 to the present day. Of particular importance here will be the black power and Black Nationalist movements of the 1970s, and the conservative reaction against...

  17. Recruitment and retention initiatives for African American and Hispanic teachers in selected school districts in Texas

    E-Print Network [OSTI]

    Perry, Anita Jane

    2005-08-29T23:59:59.000Z

    RECRUITMENT AND RETENTION INITIATIVES FOR AFRICAN AMERICAN AND HISPANIC TEACHERS IN SELECTED SCHOOL DISTRICTS IN TEXAS A Dissertation by ANITA JANE PERRY Submitted to the Office of Graduate Studies of Texas A&M University... IN SELECTED SCHOOL DISTRICTS IN TEXAS A Dissertation by ANITA JANE PERRY Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved as to style and content by...

  18. Perceptions of Five Middle School Science Teachers: A Suburban Success Story on the Texas Assessment of Knowledge and Skills Achievement for Eighth Grade African American Students

    E-Print Network [OSTI]

    Henry, Cheryl Turner

    2012-07-16T23:59:59.000Z

    The purpose of this qualitative study was to examine a problem of practice present in an actual school district. The study examined the achievement gap that existed between African American and European American students in eighth grade science...

  19. American Suppliers: The Role of Americans in the Perpetuation and Maintenance of the Postwar Black Market in Germany

    E-Print Network [OSTI]

    Fasulo, Micheal

    2012-02-14T23:59:59.000Z

    Americans are curiously absent from the literature as forces in the black market prevailing in Germany after World War II. Aside from Rundell's study of failed currency control policy during the Second World War and the subsequent occupations...

  20. Reading the (In)visible Race: African-American Subject Representation and Formation in American Literature

    E-Print Network [OSTI]

    Hollingsworth, Lauren Colleen

    2010-01-01T23:59:59.000Z

    A. Baker Jr. , Manthia Diawara and Ruth H. Lindeborg.in Dominance. ” Baker, Diawara, and Lindeborg 16-61. Harper,A. Baker Jr. , Manthia Diawara, nd Ruth H. Lindeborg, Black

  1. Era Bell Thompson: Observations of an American Daughter on the American South and the African Congo

    E-Print Network [OSTI]

    Zacharias, Karenbeth Garvin

    2012-12-31T23:59:59.000Z

    This dissertation asks how author and journalist Era Bell Thompson understood and constructed her racial identity against the historical context of the connections between the American South and the Congo. Thompson's unique childhood on the Great...

  2. Squamous cell carcinomas in Afro-Caribbean women. (comment about the article: "Squamous cell carcinomas in African American women" by

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Squamous cell carcinomas in Afro-Caribbean women. (comment about the article: "Squamous cell in Afro-Caribbean patients. We recently8 performed a 11-year retrospective study with the aim black Caribbean10 of African European descent). Incident cases of SCC from the study period were

  3. Examining the world of subcultural existence: a descriptive analysis of African American management experiences and values 

    E-Print Network [OSTI]

    Stephens, Chandra D.

    2007-04-25T23:59:59.000Z

    .S., University of Houston, Clear Lake Chair of Advisory Committee: Dr. Kenneth E. Paprock A s t o d a y ? s g l o b a l b u s i n e s s es acknowledge the criticality of being competitive in international markets, this new awakening also compels... i l a r l y f r a m e d a r o u n d s o m e v a l u e s e x a m i n e d i n P e p p a s ? r e s e a r c h , t h e p u r p o s e o f t h i s study was to explore the African American subcultural experiences in practice...

  4. To enter and lead: renegotiating meanings of leadership and examining leadership theory of social power from the perspectives of African American women leaders in predominantly white organizations

    E-Print Network [OSTI]

    Byrd, Marilyn Yvonne

    2009-05-15T23:59:59.000Z

    This qualitative, phenomenological study examined the leadership experiences of 10 African American women (AAW)--current or former leaders in predominantly white organizations--to gain an understanding of how well, or not, AAW?s leadership...

  5. american black bears: Topics by E-print Network

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

    to the geometric volume). Recent progress in this new direction for black hole thermodynamics is reviewed. Dolan, Brian P 2014-01-01 139 Analytical and experimental...

  6. A Link To The Future: A Pilot Study Look at How Historically Black Colleges and Universities With Journalism and Mass Communications Units Use The Internet in Recruiting

    E-Print Network [OSTI]

    Crawford II, Jerry L.

    2012-04-01T23:59:59.000Z

    Historically Black Colleges and Universities (HBCUs) have had the ability to recruit African-American students since the 1860s by stressing a sense of inclusion and family through their mission statements and community ...

  7. african children receiving: Topics by E-print Network

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

    of labour, Milicevic, Zorana 2010-01-01 66 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  8. african bioethics initiative: Topics by E-print Network

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

    Engineering Saldin, Dilano 56 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  9. The Forgotten Children: African American Children and Child Welfare Reform in St. Louis, 1890-1930

    E-Print Network [OSTI]

    Thirlkel, Thomas E.

    2010-05-07T23:59:59.000Z

    Abstract Forgotten Children examines the influence of racial ideology on the trajectory of child welfare reform in late nineteenth century and early twentieth century St. Louis. The modern American child welfare system emerged in this time period...

  10. Black California Dreamin': The Crises of California's African-American Communities

    E-Print Network [OSTI]

    Woods, Clyde

    2012-01-01T23:59:59.000Z

    Fillmore and Bayview-Hunters Point, the former standing asconcentrated in Bayview/Hunters Point, declined from 96,000is home to the former Hunters Point shipyard where the Point

  11. A case study of the voices of African American teachers in two Texas communities before and after desegregation, 1954 to 1975

    E-Print Network [OSTI]

    Standish, Hilary A.

    2009-05-15T23:59:59.000Z

    Dissertation by HILARY A. STANDISH Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Patricia J. Larke Committee Members... and After Desegregation, 1954 to 1975. (December 2006) Hilary A. Standish, B.A., Mount Holyoke College; M.A., Texas A&M University Chair of Advisory Committee: Dr. Patricia J. Larke This qualitative study explored the experiences of African American...

  12. african universities recommendations: Topics by E-print Network

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

    PART-TIME FACULTY Academic Rate Year-Sem. Rate Course Title per Other Goldberg, Bennett 4 Department of African and African American Studies, Harvard University William...

  13. adult south american: Topics by E-print Network

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

    while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 23 Molecular...

  14. Education no longer deferred: the possibilities of educating urban african american males in a single gender school.

    E-Print Network [OSTI]

    James, Marlon C.

    2009-05-15T23:59:59.000Z

    The purpose of this study is to investigate the emerging school culture of Excel Academy for Boys [Pseudonym] located in the Southwestern region of the United States, and how it contributes to the social and academic development of urban African...

  15. American Suppliers: The Role of Americans in the Perpetuation and Maintenance of the Postwar Black Market in Germany 

    E-Print Network [OSTI]

    Fasulo, Micheal

    2012-02-14T23:59:59.000Z

    soldier bought or sold there. Then, like bit players in a movie, Americans recede from view, and Germans and displaced persons resume their places in the lead. This thesis has two objectives. Through support from the archival record, first...

  16. Black History Month

    Broader source: Energy.gov [DOE]

    During National African American History Month, we pay tribute to the contributions of past generations and reaffirm our commitment to keeping the American dream alive for the next generation.  In...

  17. Tyrosinase-positive oculocutaneous albinism in Southern African blacks: P gene-associated haplotypes suggest a major mutation in the 5{prime} region of the gene

    SciTech Connect (OSTI)

    Ramsay, M.; Stevens, G.; Beukering, J. van [Univ. of the Witwatersrand, Johannesburg (South Africa)] [and others

    1994-09-01T23:59:59.000Z

    Tyrosinase-positive oculocutaneous albinism (ty-pos OCA) occurs with a prevalence of 1 in 3900 among Southern African (SA) blacks. The major contributors to morbidity and mortality are skin cancer and decreased visual acuity. Two distinct phenotypes occur, namely individuals with ephelides (darkly pigmented patches) and those without. There is complete concordance with regard to ephelus status among siblings. The disorder is linked to markers on chromosome 15q11.2-q12, and no obligatory cross-overs were observed with polymophic markers at the human homolog, P, of the mouse pink eyed dilute gene, p. Contrary to what has been shown for Caucasoid ty-pos OCA, this condition shows locus homogeneity among SA blacks. The P gene is an excellent candidate for ty-pos OCA and mutations in this gene will confirm its role in causing the common form of albinism in SA. Numerous P gene mutations have been described in other populations. In an attempt to detect mutations, the P gene cDNA was used to search for structural rearrangements or polymorphisms. Six polymorphisms (plR10/Scal, 912/Xbal, 912/HincII, 912/TaqI, 1412/TaqI [two systems] and 1412/HindIII) were detected with subclones of the P cDNA and haplotypes were determined in each family. None were clearly associated with an albinism-related rearrangement. However, strong linkage disequilibrium was observed with alleles at loci toward the 5{prime} region of the gene ({triangle}=0.65, 0.57 and 0.80 for the three polymorphisms detected with the 912 subclone), suggesting a major ty-pos OCA mutation in this region. Haplotype analysis provides evidence for a major mutation associated with the same haplotype in individuals with ephelides (8/12 OCA chromosomes) and those without ephelides (24:30). The presence of other ty-pos OCA associated haplotypes indicates several other less common mutations.

  18. Communicaton and diversity: the adjustment and socialization of African American students at Texas A&M University

    E-Print Network [OSTI]

    Mouton, Walelia Chevalier

    1994-01-01T23:59:59.000Z

    interchangeably to mean U. S. born students of African decent. For purposes of this study, I use the term "ExCEL" to mean both the 2-day fresh- man orientation and I CARE sessions held through the fall and spring semesters of the same school year.... For the school year 1993-1994 the program administrators refer to ExCEL as both components. TABLE OF CONTENTS Page ABSTRACT. ACKNOWLEDGEMENT S 1V TABLE OF CONTENTS V1 LIST OF TABLES. CHAPTER vu1 I INTRODUCTION AND REVIEW OF LITERATURE...

  19. Red and Black: A Divided Seminole Nation: U.S. vs. Davis

    E-Print Network [OSTI]

    McCray Pearson, Joyce A.

    2005-01-01T23:59:59.000Z

    The Seminole Nation comprises persons of both Native American and African-American descent. The African-American constituency of the nation has battled in the courts to have its benefits under Federal law recognized. The ...

  20. american cutaneous leishmaniasis: Topics by E-print Network

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

    a newspaper while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 240 An...

  1. american apiaries implications: Topics by E-print Network

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

    a newspaper while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 209 An...

  2. american phonixin fauna: Topics by E-print Network

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

    a newspaper while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 First Page...

  3. american cancer ulaac: Topics by E-print Network

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

    a newspaper while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 215 An...

  4. Black and white: a portrayal of gender roles in American women's periodicals during the Eisenhour years

    E-Print Network [OSTI]

    McGaugh, Emily Cozette

    1996-01-01T23:59:59.000Z

    (1883) GOOD 3~0, 690 3, 442, 784 3, 602+33 4, 367, 766 HOUSEKEEPING (1885) 4, 437, 978 4, 673, 416 REDBOOK 1, 980, 153 2, 048, 407 2, 288, 170 2, 689, 510 2, 808, 729 2, 994, 059 (1903) READER'S DIGEST N/A 10, 000, 000 11, 024, 410 12, 184, 516 12.... Civil Rights, Transition. SUMMARY AND CONCLUSIONS. S ummary. Conclusions. BIBLIOGRAPHY. VITA . . Page tv v 1 2 3 7 13 15 19 20 23 26 26 26 32 37 LIST OF TABLES TABLES 1 Black Periodicals Circulation. 2 White Periodicals...

  5. Nonblack patients with sickle cell disease have African. beta. sup s gene cluster haplotypes

    SciTech Connect (OSTI)

    Rogers, Z.R.; Powars, D.R.; Williams, W.D. (Univ. of Southern California School of Medicine, Los Angeles (USA)); Kinney, T.R. (Duke Univ., Durham, NC (USA)); Schroeder, W.A. (California Institute of Technology, Pasadena (USA))

    1989-05-26T23:59:59.000Z

    Of 18 nonblack patients with sickle cell disease, 14 had sickle cell anemia, 2 had hemoglobin SC disease, and 2 had hemoglobin S-{beta}{sup o}-thalassemia. The {beta}{sup s} gene cluster haplotypes that were determined in 7 patients were of African origin and were identified as Central African Republic, Central African Republic minor II, Benin, and Senegal. The haplotype Central African Republic minor II was present on the {beta}{sup o}-thalassemia chromosome in 2 patients. None of 10 patients whose {alpha}-gene status was determined had {alpha}-thalassemia-2. These data strongly support the concept that the {beta}{sup s} gene on chromosome 11 of these individuals is of African origin and that the {alpha}-gene locus on chromosome 16 is of white or native American origin. The clinical severity of the disease in these nonblack patients is appropriate to their haplotype without {alpha}-thalassemia-2 and is comparable with that of black patients. All persons with congenital hemolytic anemia should be examined for the presence of sickle cell disease regardless of physical appearance or ethnic background.

  6. american monsoon system: Topics by E-print Network

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

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 157 American Institute of Aeronautics and Astronautics...

  7. Blood Sugar and Brothers' Voices: An Exploratory Study Of The Self-Care Management Experiences of African-American Men Living With Type 2 Diabetes

    E-Print Network [OSTI]

    Sherman, Ledric D

    2013-07-23T23:59:59.000Z

    - dependent diabetes, is the most common form of diabetes (ADA, 2011). xi TABLE OF CONTENTS Page ABSTRACT .............................................................................................................. ii...-Americans, Native Hawaiians, and other Pacific Islanders (ADA, 2011). Epidemiology of Type 2 Diabetes According the 2010 Center for Disease Control and Prevention estimated figures, 25.8 million people in the United States aged 20 years and older are affected...

  8. "EntirelyBlackVerse from Him Would

    E-Print Network [OSTI]

    Goldberg, Bennett

    and latest book, Majorsand Minors (1896). Fortunately for the African American poet, Herne was well sent the poet a letter: "While at Toledo a copy of your poems wasleft at my hotel by a Mr

  9. The Historically Black Colleges and Universities/Minority Institutions Environmental Technology and Waste Management Consortium annual report, 1990--1991

    SciTech Connect (OSTI)

    NONE

    1991-12-31T23:59:59.000Z

    The HBCU/MI Environmental Technology and Waste Management Consortium was established in January 1990, through a Memorandum of Understanding (MOU) among the member institutions. This group of research-oriented Historically Black Colleges and Universities and Minority Institutions (HBCU/MI) agreed to work together to initiate research, technology development and education programs to address the nation`s critical environmental problems. As a group the HBCU/MI Consortium is uniquely positioned to reach women and the minority populations of African Americans, Hispanics and American Indians. As part of their initial work, they developed the Research, Education, and Technology Transfer (RETT) Plan to actualize the Consortium`s guiding principles. In addition to developing a comprehensive research agenda, four major programs were begun to meet these goals. This report summarizes the 1990--1991 progress.

  10. American Black Bear: Ursus americanus

    E-Print Network [OSTI]

    Gray, Matthew

    & Delisting (Bowker and Jacobson 1995) one each in the Tensas and Atchafalaya River Basins; 2. Establishment and interconnecting corridors that support each of the two viable subpopulations used as justification for delisting

  11. Adversarial Diplomacy and African American Politics

    E-Print Network [OSTI]

    Williams II, Ronald Cartell

    2011-01-01T23:59:59.000Z

    work. See, for example, Andrew Norman, Robert Mugabe and theMissouri Press, 1985. Norman, Andrew. Robert Mugabe and the

  12. Malignant melanoma in African-Americans

    E-Print Network [OSTI]

    Kabigting, Filamer D; Nelson, Fern P; Kauffman, C Lisa; Popoveniuc, Geanina; Dasanu, Constantin A; Alexandrescu, Doru T

    2009-01-01T23:59:59.000Z

    KIT in distinct subtypes of melanoma. J Clin Oncol. 2006;24:in cutaneous malignant melanoma. J Cutan Pathol. 1998;25:GT, Wong JH. Cutaneous melanoma in a multiethnic population:

  13. Adversarial Diplomacy and African American Politics

    E-Print Network [OSTI]

    Williams II, Ronald Cartell

    2011-01-01T23:59:59.000Z

    2002); An Unbroken Agony: Haiti from Revolution to theRandall. An Unbroken Agony: Haiti from Revolution to theworks, An Unbroken Agony: Haiti from Revolution to the

  14. Adversarial Diplomacy and African American Politics

    E-Print Network [OSTI]

    Williams II, Ronald Cartell

    2011-01-01T23:59:59.000Z

    during the administration of Jimmy Carter compared to that154. Louis Martin, interview, 10 December 1980, Jimmy CarterPapers, Jimmy Carter Presidential Library, Atlanta, GA,

  15. american house dust: Topics by E-print Network

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

    markets hit by United States housing crash 19 Columbia, Canada. Currently about 80% of pellet production from North America is exported to Europe. Recent 2 The African-American...

  16. american consumers nhanes: Topics by E-print Network

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

    11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 American Wine Consumer CiteSeer Summary: Marketing strategies addressing underserved African...

  17. Cultural Heritage in African Films

    E-Print Network [OSTI]

    Bouteba, P.M.

    1989-01-01T23:59:59.000Z

    the African film "Wend Kuuni," Diawara describes the majorstructure and meanings. Diawara states, "Kabore's strategy

  18. Clinical characteristics of African Americans vs Caucasian Americans

    E-Print Network [OSTI]

    Reich, David

    case-control series found that AA patients with motor symptoms at disease onset have greater disability for requiring a cane to ambulate than CA patients (p 0.001). There was a trend suggesting that AAs were also over time than CA patients.15 In addition to motor disability, AAs may experience more optic nerve

  19. Final Report: African Power/Energy and Environmental Development Plan, July 1, 1994 - August 21, 1999

    SciTech Connect (OSTI)

    Butler, John M.

    1999-08-21T23:59:59.000Z

    In 1994 AEF signed a Cooperative Agreement with DOE to address a program called the African Power /Energy and Environmental Development Plan. The Program initially addressed five area: (1) Historical Black Colleges and Universities Energy/Environmental Program; (2) The Department of Energy and United States Private Industry Africa Program; (3) The Annual United States Energy Study Tour; (4) South African Training Program, and (5) South African Environmental Program. The programs were implemented in conjunction with DOE, institutions, agencies and the private sector support in the USA and within African nations. AEF has worked with government and technical representatives from 13 African nations and expanded the program to address sponsorship of South African students in Historical Black Colleges and Universities, supporting DOE trade missions through participation and planning, and giving presentations in the U.S., and Africa regarding business opportunities in the African energy sector. The programs implemented have also opened doors for the US private sector to seek business opportunities in Africa and for African nations to gain exposure to US products and services.

  20. Black Holes

    E-Print Network [OSTI]

    P. K. Townsend

    1997-07-04T23:59:59.000Z

    Lecture notes for a 'Part III' course 'Black Holes' given in DAMTP, Cambridge. The course covers some of the developments in Black Hole physics of the 1960s and 1970s.

  1. Black History Month 2014 Calendar of Events Questions? Email cgrogan@uic.edu

    E-Print Network [OSTI]

    Dai, Yang

    represents the memory of African-American culture and how the Great Migration transformed Blues and Jazz highlight an excruciatingly funny and squirm-inducing evocation of the fault line between race and property

  2. Black/brown cooperation and conflict in the education policymaking process

    E-Print Network [OSTI]

    Rocha, Rene Rolando

    2006-10-30T23:59:59.000Z

    AFRICAN-AMERICANS, LATINOS, AND SECOND- GENERATION DISCRIMINATION?????????...... Racial Context????????????????. Racial/Ethnic Social Status???????????.. Representative Bureaucracy??????????? Modeling Second Generation Discrimination????. Findings... Model of the Substantive Representation of Latinos on Local School Boards?????????????.. 87 5.1 Second-Generation Discrimination among Minority Students?? 105 5.2 Determinants of Second-Generation Discrimination among African...

  3. An Introduction to the Letters of Isaiah Moteka: the correspondence of a twentieth-century South African Zionist minister

    E-Print Network [OSTI]

    Cabrita, Joel

    2014-04-09T23:59:59.000Z

    worldwide black diaspora (Campbell 1998, Vinson 2012). Moteka’s letters, by contrast, reveal an epistolary network marked by its racial inclusivity, connecting both whites and blacks. It is true that letters are frequently linked to the emergence... human race could be understood literally (Kidd 2006: 128). In 1901, Dowie asserted: ‘White man, black man, yellow man, red man, brown man, we all have the same father.’1 And in the context of the period’s debate about the role of African...

  4. South African Hake Sales Increase

    E-Print Network [OSTI]

    South African Hake Sales Increase The Capeto\\\\ n Traw ler Com pan) Inin and J ohn~on. i e\\port1l1g

  5. Stories of the Unheard: A Case Study of Five Mexican American Dropouts Labeled as Demonstrating Learning Disabilities

    E-Print Network [OSTI]

    Villafranca, Darlene 1975-

    2012-11-27T23:59:59.000Z

    APPENDIX F..................................................................................................... 224 APPENDIX G .................................................................................................... 226 APPENDIX H... schools (Appendix H). For instance, the dropout rates for Texas 7th-12th graders in 2010-2011 were as follows: Whites, 16.2%; African American, 20.7%; Mexican American, 60.3%; American Indian, 0.6%; Asian, 1.1%; Pacific Islanders,.1%; Economically...

  6. The Black Male Youth Academy: Understanding the impact of a critical literacy intervention program on underserved youth

    E-Print Network [OSTI]

    Scorza, D'Artagnan

    2013-01-01T23:59:59.000Z

    of your participation in the Black Male Youth Academy? 5.recommend the Black Male Youth Academy to your peers? PleaseJournal of the American Academy of Child & Adolescent

  7. RESEARCH ARTICLE Open Access The imprint of the Slave Trade in an African

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    RESEARCH ARTICLE Open Access The imprint of the Slave Trade in an African American population: Retracing the genetic histories of the descendant populations of the Slave Trade (16th -19th centuries in the current day Surinam. They represent an original ethnic group with a highly blended culture. Uniparental

  8. African Rue Biology and Management

    E-Print Network [OSTI]

    Hart, Charles R.

    2002-10-17T23:59:59.000Z

    African rue is a toxic and highly invasive plant found in western parts of Texas. This publication describes the plant and explains the symptoms it can cause in livestock that ingest it. There are suggestions for controlling African rue on rangeland...

  9. African oil plays

    SciTech Connect (OSTI)

    Clifford, A.J. (BHP Petroleum, Melbourne, Victoria (Australia))

    1989-09-01T23:59:59.000Z

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

  10. A southern black community comes of age: black San Antonio in the Great Depression, 1930-1941

    E-Print Network [OSTI]

    Jackson, Charles Christopher

    1989-01-01T23:59:59.000Z

    A&M University Press, 1984) compares the Depression This thesis follows the format of the Journal of 9 t ~Ht experiences of black, white, and Mexican American women of San Antonio. Judy Kaaz Doyle's "Maury Maverick and Racial Politics in San...A SOUTHERN BLACK COMMUNITY COMES OF AGE: BLACK SAN ANTONIO IN THE GREAT DEPRESSION, 1930-1941 A Thesis by CHARLES CHRISTOPHER JACKSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  11. The Historically Black Colleges and Universities/Minority Institutions Environmental Technology Consortium annual report 1994--1995

    SciTech Connect (OSTI)

    NONE

    1998-07-01T23:59:59.000Z

    The HBCU/MI ET Consortium was established in January 1990, through a Memorandum of Understanding (MOU) among its member institutions. This group of research oriented Historically Black Colleges and Universities and Minority Institutions (HBCU/MIs) agreed to work together to initiate or revise education programs, develop research partnerships with public and private sector organizations, and promote technology development to address the nation`s critical environmental contamination problems. The Consortium`s Research, Education and Technology Transfer (RETT) Plan became the working agenda. The Consortium is a resource for collaboration among the member institutions and with federal an state agencies, national and federal laboratories, industries, (including small businesses), majority universities, and two and four-year technical colleges. As a group of 17 institutions geographically located in the southern US, the Consortium is well positioned to reach a diverse group of women and minority populations of African Americans, Hispanics and American Indians. This Report provides a status update on activities and achievements in environmental curriculum development, outreach at the K--12 level, undergraduate and graduate education, research and development, and technology transfer.

  12. african black caribbean: Topics by E-print Network

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

    SUPERVISION IN LATIN AMERICA AND THE CARIBBEAN CiteSeer Summary: This paper analyzes the pros and cons of both the integrated and the specialized approaches to financial...

  13. West African crude production diversifies

    SciTech Connect (OSTI)

    Aalund, L.

    1983-06-01T23:59:59.000Z

    Nigeria, with its seven crude-oil export streams, dominated West African production and accounted for over 70% of the depressed 1.8 million b/d output from the region last year. However, during the 1970s a flurry of new producing fields, primarily off the African coast, diversified production among a number of countries and touched off a wave of oil activity. The Journal takes a close look at the quality of West African oil in this installment of assays on world export crudes. This issue covers, in alphabetical order, Bonny Light (Nigeria) to Espoir (Ivory Coast). A following issue will wrap up West Africa by presenting assays on crudes from Forcados Blend (Nigeria) to Zaire Crude (Zaire).

  14. 1 American Studies AMERICAN STUDIES

    E-Print Network [OSTI]

    Vertes, Akos

    1 American Studies AMERICAN STUDIES An innovative department with 15 core faculty and 12 affiliated of culture, ideas and religious beliefs; the development and transformation of public cultures and spaces. Topics include the civil rights movement, the student movement, the Vietnam War, and the counterculture

  15. african american undergraduate: Topics by E-print Network

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

    Science and Engineering Mathematics Websites Summary: Undergraduate Computational Science and Engineering Education in the USA Peter Turner www - Computational Physics @...

  16. The Voices of Five African American Children of Incarcerated Parents

    E-Print Network [OSTI]

    Larke, Altricia

    2014-05-08T23:59:59.000Z

    representations of self and others” (Fortuna, Roisman, Haydon, Groh & Holland, 2011). In essence, children have a need for secure relationships with adult caregivers and without which normal social and emotional development may not occur (Sagar, 2011... (Sagar, 2011). Currently, attachment theory also emphasizes the importance of these relationships throughout the life span (Fortuna et. al, 2011). “This alliance contributes to an individual’s feelings of security and continuity in relationships (p...

  17. Predictors of Psychological Health among Rural-Residing African Americans

    E-Print Network [OSTI]

    Cook, Helene

    2012-10-19T23:59:59.000Z

    in the West had higher rates of alcohol abuse and suicide, rural residents who lived in the Northeast had higher rates of total tooth loss. Rural health care continues to face numerous challenges in the areas of access, diversity, and a constantly growing... strong after controlling for age, education, marital status, physician’s health rating, dieting for medical reasons, use of psychiatric medicines, cigarette smoking, and use of alcohol, marijuana, and cocaine. They did not provide specific data...

  18. African American Fathers’ Perceptions of Childhood Overweight: An Exploratory Study

    E-Print Network [OSTI]

    Byrd, Vanessa

    2012-02-14T23:59:59.000Z

    health status or differences in body/bone structure, and that parents with overweight children are financially disadvantaged, irresponsible and overworked. Fathers also indicated that colloquial terms (e.g., chunky, husky, big-boned, thick) were commonly...

  19. Addressing the lack of Baseball Consumption amongst African Americans

    E-Print Network [OSTI]

    Brown, Brandon Leigh

    2013-08-06T23:59:59.000Z

    for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Gregg Bennett Committee Members, George B. Cunningham John N. Singer James Petrick Head of Department, Richard B. Kreider August 2013 Major Subject: Kinesiology Copyright 2013 ii... to use this opportunity to thank those persons who not only made this process possible, but who made this chapter of my life worthwhile. First and foremost, I would like to thank my committee chair, Dr. Gregg Bennett for being nothing short of a father...

  20. Prevalence and correlates of sun protection behaviors among African Americans

    E-Print Network [OSTI]

    Pichon, Latrice Crystal

    2008-01-01T23:59:59.000Z

    K.D. , Elder, J.P. (2007). Sun sensitivity in five USC. A. , Velicer, W. F. , Sun, X. , Fava, J. L. , et al. (H. K. , & Nadel, M. (1997). Sun protection behaviors of the

  1. Engaging African Americans in STEM Education | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 Russian NuclearandJunetrackEllen|July 14, 2014July 7,July 22, 2015June

  2. Engaging African Americans in STEM Education | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,OfficeEnd of Year 2010 SNFEnergySession0-02 - DecemberEnforcing

  3. A Proclamation: President Obama on National African American History Month,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015ofDepartmentDepartment of Energy ThisThis guide isJanuaryA

  4. National African American History Month, 2013: A Presidential Proclamation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1,(EAC)TABLEChallenges|Advanced AuthoringIt'sNanoparticle U.S.The|

  5. RHIC | Black Holes?

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

    Black Holes at RHIC? Further discussion by Physicist Dmitri Kharzeev on why RHIC cannot produce a real gravitational black hole Black holes are among the most mysterious objects in...

  6. black-bean-salad

    E-Print Network [OSTI]

    Date: Mon, 22 Nov 93 13:06:59 PST From: Jane Colman BLACK BEAN SALAD 3 cups dried black beans, soaked and cooked 3-4 ears ...

  7. BLACK FRANCOPHONE LITERATURE VIDEOS Page 1 of 3 Last Updated 07/09/02

    E-Print Network [OSTI]

    Baskaran, Mark

    min.) BFL/5 - REPUBLIC OF CHAD (B/W) (English) (20 min.) BFL/6 - AFRICA: HISTORICAL HERITAGE of early Afric also emphasizes the rich cultural heritage of Afro-americans (color) (English) (9 min.) BFL - AFRICAN CONTINENT: AN INTRODUCTION This geographical, historical and cultural overview of the wo second

  8. african cichlid fishes: Topics by E-print Network

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

    Page Topic Index 1 Somatostatin Regulates Aggressive Behavior in an African Cichlid Fish Biology and Medicine Websites Summary: be- havioral states. In the African cichlid fish...

  9. The lost revolution : capitalism, democracy and black citizenship in early twentieth-century America's biggest race conflicts

    E-Print Network [OSTI]

    Butler, Katonio A. (Katonio Arthella)

    2007-01-01T23:59:59.000Z

    This new racial conflict over the future of blacks' social, political and economic self determination became an inescapable "trial by fire" for American democracy. Throughout the United States, W.E.B. Du Bois' "New Negroes," ...

  10. A Molecular Phylogeny of Black-Tyrants (Tyrannidae: Knipolegus) Reveals Strong Geographic Patterns and Homoplasy in Plumage and Display Behavior

    E-Print Network [OSTI]

    Hosner, Peter A.; Moyle, Robert G.

    2012-01-01T23:59:59.000Z

    We present the first molecular phylogenetic hypothesis for Knipolegus (black-tyrants), a widespread genus of South American tyrant-flycatchers, based on nuclear and mitochondrial DNA sequences. Bayesian and maximum-likelihood ...

  11. vol. 167, no. 6 the american naturalist june 2006 Sensory Drive in Cichlid Speciation

    E-Print Network [OSTI]

    vol. 167, no. 6 the american naturalist june 2006 Sensory Drive in Cichlid Speciation Martine E of selection in speciation is a central yet poorly understood problem in evolutionary biology. The rapid radiations of extremely colorful cichlid fish in African lakes have fueled the hypothesis that sexual

  12. Black Pine Engineering

    Broader source: Energy.gov [DOE]

    Black Pine Engineering is commercializing a disruptive technology in the turbomachinery industry. Using a patented woven composite construction, Black Pine Engineering can make turbomachines (turbines, compressors) that are cheaper and lighter than competing technologies. Using this technology, Black Pine Engineering will sell turbo-compressors which solve the problem of wasted steam in geothermal power plants.

  13. Black Bean Burrito Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    under running water to remove sodium. 2. Heat beans, corn and salsa together. 3. Spread 1/8 salsaBlack Bean Burrito Ingredients: 15 ounces black beans, canned, drained and rinsed 10 ounces corn cheddar cheese, low-fat, shredded 8 whole wheat flour tortillas Directions 1. Drain and rinse black beans

  14. The Insistence Upon Community in the Contemporary Afro-American Novel

    E-Print Network [OSTI]

    Schultz, Elizabeth A.

    1979-01-01T23:59:59.000Z

    ELIZABETH A. SCHULTZ The Insistence Upon Community in the Contemporary Afro-American Novel BIGGER THOMAS WAITS DEFIANTLY AND ALONE for death at the conclusion of Richard Wright's Native Son (1940). The narrator of Ralph Ellison's Invisible Man...). Elizabeth A. Schultz is associate professor of English at the University of Kansas and associate ditor of American Studies. In addition to articles on black American literature and music, Professor Schultz has published several poems, short stories...

  15. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    Eroticized Asian in Gay Male Porn,” in Q&A: Queer in AsianEroticized Asian in Gay Male Porn. ” In Q&A: Queer in AsianEroticized Asian in Gay Male Porn,” in Q&A: Queer in Asian

  16. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    Cinema. Edited by Manthia Diawara. New York: Routledge,Cinema. Edited by Manthia Diawara. New York: Routledge,citizenship addresses what Manthia Diawara calls “resisting

  17. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    2001. For a discussion of fandom and leisure using classin soccer or Australian fandom in rugby. See Alan Bairner,

  18. American racism and African diplomats: race and American Cold War policy in West Africa

    E-Print Network [OSTI]

    Oriabure, Stephannie Ebhota

    2001-01-01T23:59:59.000Z

    West Africa. . . 32 4 United Nations Voting on Selected East-West Issues. . . 33 CHAPTER I INTRODUCTION The biggest single burden that we carry on our backs in our foreign relations in the 1960s is the problem of racial discrimination here at home... of neocolonialism. ' Andrew J. Potter, Comrades at Odds: The United States and India, 1947-1964 (Ithaca, 2000L 154. ' Paul Gordon Lauren, Power and Prejudice: The Pohtics and Diplomacy of Racial Discrimination (Boulder, 1988) . Calvin B. Holder was one...

  19. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    Hughes directed and wrote this box-office hit, featuring girl-next-door Molly Ringwald as Samantha Baker.

  20. english 31AC african-amercan studies 17AC history 7B public health 130AC sociology 3AC education 30AC ethnic studies 135AC geography 150AC history 127AC information 142AC psychology 125AC anthropology 2AC american

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    · anthropology 2AC · american studies 10AC · gender and womens studies 50AC · music 26AC · spanish 135AC 50AC · music 26AC · spanish 135AC · sociology 190AC · public policy 117AC · peace and conflict studies 10AC · gender and womens studies 50AC · music 26AC · spanish 135AC · sociology 190AC · public

  1. Dynamics of black holes

    E-Print Network [OSTI]

    Sean A. Hayward

    2009-02-28T23:59:59.000Z

    This is a review of current theory of black-hole dynamics, concentrating on the framework in terms of trapping horizons. Summaries are given of the history, the classical theory of black holes, the defining ideas of dynamical black holes, the basic laws, conservation laws for energy and angular momentum, other physical quantities and the limit of local equilibrium. Some new material concerns how processes such as black-hole evaporation and coalescence might be described by a single trapping horizon which manifests temporally as separate horizons.

  2. Communication Factors Affecting African Policymakers' Decisions about Agricultural Biotechnology 

    E-Print Network [OSTI]

    Begashaw, Belay Ejigu

    2010-10-12T23:59:59.000Z

    The purpose of this study was to develop a model for impacting decisions on agricultural biotechnology practices in food production among African policymakers. The research focused on three African countries, namely, South ...

  3. Rotating Hairy Black Holes

    E-Print Network [OSTI]

    B. Kleihaus; J. Kunz

    2000-12-20T23:59:59.000Z

    We construct stationary black holes in SU(2) Einstein-Yang-Mills theory, which carry angular momentum and electric charge. Possessing non-trivial non-abelian magnetic fields outside their regular event horizon, they represent non-perturbative rotating hairy black holes.

  4. margrets-black-beans

    E-Print Network [OSTI]

    COM (Robert L. Simmons) Black Beans (Margret Simmons) 2 lbs. dry black beans soaked 8 hrs/overnight 1 qt. veggie stock soaking water plus enough ... 10 garlic cloves finely chopped 1/2 cup cooking sherry 1 tsp. allspice (ground) 1 lemon ...

  5. American Academy of Sleep Medicine American Academy of Sleep Medicine

    E-Print Network [OSTI]

    Goldman, Steven A.

    © American Academy of Sleep Medicine American Academy of Sleep Medicine The following product has been developed by the American Academy of Sleep Medicine Copyright © 2003 American Academy of Sleep: (708) 492-0943 Visit Us at www.aasmnet.org #12;© American Academy of Sleep Medicine American Academy

  6. Global biofuel drive raises risk of eviction for African farmers

    E-Print Network [OSTI]

    Global biofuel drive raises risk of eviction for African farmers African farmers risk being forced from their lands by investors or government projects as global demand for biofuels encourages changes at risk if African farmland is turned over to growing crops for biofuel. With growing pressure to find

  7. Roadmap: Pan-African Studies Pan-African Studies Bachelor of Arts [AS-BA-PAS-PAS

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Pan-African Studies ­ Pan-African Studies ­ Bachelor of Arts [AS-BA-PAS-PAS] College: 22-Apr-13/LNHD This roadmap is a recommended semester-by-semester plan of study for this major Non-PAS Elective 3 General Elective (upper division) 9 #12;Roadmap: Pan-African Studies ­ Pan

  8. GAUDINO INITIATIVE: DANGEROUS COURSES AFR 320(S) Dangerous Bodies: Black Womanhood, Sexuality and Popular Culture (Same as AMST 320 and WGSS 402)

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    269 GAUDINO INITIATIVE: DANGEROUS COURSES AFR 320(S) Dangerous Bodies: Black Womanhood, Sexuality. This course is part of the Gaudino Danger Initiative. Format: seminar. Requirements: evaluation will be based: Graphic Novels & Dangerous Histories of the African Diaspora (Same as AMST 323, ARTH 223, COMP 322

  9. On Noncommutative Black Holes Thermodynamics

    E-Print Network [OSTI]

    Faizal, Mir; Ulhoa, S C

    2015-01-01T23:59:59.000Z

    In this paper, we will analyze noncommutative deformation of the Schwarzschild black holes and Kerr black holes. We will perform our analysis by relating the commutative and the noncommutative metrics using an Moyal product. We will also analyze the thermodynamics of these noncommutative black hole solutions. We will explicitly derive expression for the corrected entropy and temperature of these black hole solutions.

  10. Alessandra Di Maio Black Italia

    E-Print Network [OSTI]

    Qian, Ning

    , historical and fictional characters of African descent have been an integral part of Italian culture at large past as an essential, and often problematic, component of their national identity. Yet historical heritage? A number of artists from the African diaspora, coming from different backgrounds, have recently

  11. Charging Black Saturn?

    E-Print Network [OSTI]

    Brenda Chng; Robert Mann; Eugen Radu; Cristian Stelea

    2008-10-28T23:59:59.000Z

    We construct new charged static solutions of the Einstein-Maxwell field equations in five dimensions via a solution generation technique utilizing the symmetries of the reduced Lagrangian. By applying our method on the multi-Reissner-Nordstrom solution in four dimensions, we generate the multi-Reissner-Nordstrom solution in five dimensions. We focus on the five-dimensional solution describing a pair of charged black objects with general masses and electric charges. This solution includes the double Reissner-Nordstrom solution as well as the charged version of the five-dimensional static black Saturn. However, all the black Saturn configurations that we could find present either a conical singularity or a naked singularity. We also obtain a non-extremal configuration of charged black strings that reduces in the extremal limit to a Majumdar-Papapetrou like solution in five dimensions.

  12. Do Black Holes Exist?

    E-Print Network [OSTI]

    J. W. Moffat

    1993-02-22T23:59:59.000Z

    The problem of information loss in black hole formation and the associated violations of basic laws of physics, such as conservation of energy, causality and unitarity, are avoided in the nonsymmetric gravitational theory, if the NGT charge of a black hole and its mass satisfy an inequality that does not violate any known experimental data and allows the existence of white dwarfs and neutron stars.

  13. Helical superconducting black holes

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2012-05-17T23:59:59.000Z

    We construct novel static, asymptotically $AdS_5$ black hole solutions with Bianchi VII$_0$ symmetry that are holographically dual to superconducting phases in four spacetime dimensions with a helical p-wave order. We calculate the precise temperature dependence of the pitch of the helical order. At zero temperature the black holes have vanishing entropy and approach domain wall solutions that reveal homogenous, non-isotropic dual ground states with emergent scaling symmetry.

  14. Black hole accretion discs

    E-Print Network [OSTI]

    Lasota, Jean-Pierre

    2015-01-01T23:59:59.000Z

    This is an introduction to models of accretion discs around black holes. After a presentation of the non-relativistic equations describing the structure and evolution of geometrically thin accretion discs we discuss their steady-state solutions and compare them to observation. Next we describe in detail the thermal-viscous disc instability model and its application to dwarf novae for which it was designed and its X-ray irradiated-disc version which explains the soft X--ray transients, i.e. outbursting black-hole low-mass X-ray binaries. We then turn to the role of advection in accretion flow onto black holes illustrating its action and importance with a toy model describing both ADAFs and slim discs. We conclude with a presentation of the general-relativistic formalism describing accretion discs in the Kerr space-time.

  15. american raptor american: Topics by E-print Network

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

    K 1998-01-01 163 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  16. AMERICAN ANTHROPOLOGIST Public Anthropology

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    AMERICAN ANTHROPOLOGIST Public Anthropology 2012 Public Anthropology Year in Review: Actually, Rick a torrent of criticism from anthropologists, including an online response by #12;Year in Review: Public

  17. Native American Heritage Month

    Broader source: Energy.gov [DOE]

    This month, we celebrate the rich heritage and myriad contributions of American Indians and Alaska Natives, and we rededicate ourselves to supporting tribal sovereignty, tribal self-determination,...

  18. Black Bean Orange Salad Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    beans in a colander under running water to remove sodium. Allow to drain. 2. Cut the ends offBlack Bean Orange Salad Ingredients: 15 ounces black beans, canned, drained and rinsed 1/4 red

  19. Gasification of black liquor

    SciTech Connect (OSTI)

    Kohl, A.L.

    1987-07-28T23:59:59.000Z

    A process is described for treating a concentrated aqueous black liquor carbonaceous material and alkali metal sulfur compounds to form a combustible gas and a sulfide-rich melt comprising: (a) providing a gasifier vessel maintained at a pressure of from about 1 to 50 atmospheres and containing a relatively shallow molten salt pool at its bottom within a sump equipped with an overflow discharge; (b) introducing into the top of the drying zone the concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds; (c) evaporating water from the concentrated aqueous black liquor in the drying zone by direct contact of the aqueous black liquor with the hot gas rising from the gasification zone to produce dried black liquor solids; (d) introducing a first portion of an oxygen-containing gas into the gas space in the gasification zone located below the drying zone immediately above the molten salt pool to partially oxidize and gasify a fraction of the carbonaceous material in the dried black liquor solids falling through the zone to form a hot combustible gas; (e) introducing a second portion of the oxygen-containing gas beneath the surface of the molten salt pool in an amount sufficient to cause gasification of essentially all carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool; (f) withdrawing the cooled combustible gas having a higher heating value of at least about 90 Btu/scf (dry basis) from an upper portion of the drying zone; and (g) withdrawing from the overflow discharge in the molten salt reduction zone a melt in which the sulfur content is predominantly in the form of alkali metal sulfide.

  20. Thermodynamical instability of black holes

    E-Print Network [OSTI]

    V. V. Kiselev

    2012-08-07T23:59:59.000Z

    In contrast to Hawking radiation of black hole with a given spacetime structure, we consider a competitive transition due to a heat transfer from a hotter inner horizon to a colder outer horizon of Kerr black hole, that results in a stable thermodynamical state of extremal black hole. In this process, by supposing an emission of gravitational quanta, we calculate the mass of extremal black hole in the final state of transition.

  1. Towards noncommutative quantum black holes

    SciTech Connect (OSTI)

    Lopez-Dominguez, J. C.; Obregon, O.; Sabido, M.; Ramirez, C. [Instituto de Fisica de la Universidad de Guanajuato, P.O. Box E-143, 37150 Leon Gto. (Mexico); Facultad de Ciencias Fisico Matematicas, Universidad Autonoma de Puebla, P.O. Box 1364, 72000 Puebla (Mexico)

    2006-10-15T23:59:59.000Z

    In this paper we study noncommutative black holes. We use a diffeomorphism between the Schwarzschild black hole and the Kantowski-Sachs cosmological model, which is generalized to noncommutative minisuperspace. Through the use of the Feynman-Hibbs procedure we are able to study the thermodynamics of the black hole, in particular, we calculate the Hawking's temperature and entropy for the noncommutative Schwarzschild black hole.

  2. african trypanosomiasis evaluation: Topics by E-print Network

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

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  3. african animal trypanosomiasis: Topics by E-print Network

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

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  4. african trypanosomiasis patients: Topics by E-print Network

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

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  5. african trypanosomiasis designed: Topics by E-print Network

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

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  6. african trypanosomiasis sleeping: Topics by E-print Network

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

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  7. Central African Republic-National Adaptation Plan Global Support...

    Open Energy Info (EERE)

    manual, Publications, Workshop Website http:undp-alm.orgprojectsn Program Start 2013 Country Central African Republic Middle Africa References National Adaptation Plan...

  8. Modelling the South African fresh fruit export supply chain

    E-Print Network [OSTI]

    van Vuuren, Jan H.

    Modelling the South African fresh fruit export supply chain Frank Gerald Ortmann Thesis presented, cooling and transportation. The capacities of packhouses, cold stores and terminals are found

  9. Using Digital Technology to Access And Store African Art

    E-Print Network [OSTI]

    Blake, Edwin

    Using Digital Technology to Access And Store African Art Gary Marsden, Katherine Malan & Edwin Blake Collaborative Visual Computing Group, Department of Computer Science, University of Cape Town +27

  10. Dolphins and African apes: comparisons of sympatric socio-ecology

    E-Print Network [OSTI]

    Bearzi, Maddalena; Stanford, Craig B.

    2007-01-01T23:59:59.000Z

    Review of sympatric ecology among dolphins and African apesA. 1998. Gorilla ecology and behaviour. EvolutionaryVolume 2: be- haviour, Ecology, and Conservation.Tokyo:

  11. african national collection: Topics by E-print Network

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

    Pendaz, Sadie 2010-01-01 2 ELTRINGHAM AFRICAN COLLECTION BALFOUR & NEWTON LIBRARIES Environmental Sciences and Ecology Websites Summary: ; Elephants, economics and ivory. London,...

  12. african developing countries: Topics by E-print Network

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

    L. 2013-01-01 377 Wildlife Monitoring and Conservation in a West African Protected Area University of California eScholarship Repository Summary: acoustic survey of the...

  13. african environmental samples: Topics by E-print Network

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

    Chem for Health Sciences CH Goldberg, Bennett 2 Sustainability Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio-cultural, and Artistic Perspective Renewable...

  14. african freshwater phreatoicidean: Topics by E-print Network

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

    Casilla 567, Valdivia, Chile, 8 South African Institute for Aquatic mediterranean-climate regions: California (USA), central Chile, south-western Australia, the Iberian...

  15. african lacertid lizards: Topics by E-print Network

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

    24 25 Next Page Last Page Topic Index 1 Evolutionary consequences of Cenozoic climate change on African lacertid lizards (Squamata: Lacertidae) University of California...

  16. Middle class African American mothers' perceptions of White teachers' interactions with their African American children in predominately White suburban junior high schools

    E-Print Network [OSTI]

    Williams, Twyla Jeanette

    2009-05-15T23:59:59.000Z

    to maintain a role of advocacy, (f) the need to maintain a role of visibility, and (g) the need to maintain a role of proactive parenting....

  17. Selecting renal replacement therapies: what do African American and non-African American patients and their families think others should know? A mixed methods study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    making about renal replacement therapies. Qual Health ResOpen Access Selecting renal replacement therapies: what doneed to inform renal replacement therapy (RRT) decisions.

  18. The Historically Black Colleges and Universities/Minority Institutions Environmental Technology Consortium annual report, 1991--1992

    SciTech Connect (OSTI)

    NONE

    1992-12-31T23:59:59.000Z

    The member institutions of the Consortium continue to play a significant role in increasing the number of African Americans who enter the environmental professions through the implementation of the Consortium`s RETT Plan for Research, Education, and Technology Transfer. The four major program areas identified in the RETT Plan are as follows: (1) minority outreach and precollege education; (2) undergraduate education and postsecondary training; (3) graduate and postgraduate education and research; and (4) technology transfer.

  19. Combustion of black liquor

    SciTech Connect (OSTI)

    Mullen, W.T.

    1989-08-15T23:59:59.000Z

    This patent describes an improvement in the combustion of black liquor in an existing Tomlison recovery boiler unit in which black liquor is sprayed into a furnace in which it is successively dried, pyrolyzed and converted to a bed of solid carbonaceous residue, using a primary air stream and a secondary air stream and the residue is subsequently converted to a smelt. The improvement comprises: the addition of between an effective amount up to 5% oxygen by volume to the primary air stream directed at the bed of solid carbonaceous residue, the amount of oxygen added being sufficient to increase the adiabatic flame temperature, the combustion rate of the solid carbonaceous material, the rate of pyrolysis, the temperature in the lower portion of the furnace, the the drying rate of black liquor droplets, and to decrease the temperature of the gases entering the heat transfer surfaces in the upper portion of the furnace and the rate of deposit formation on the surfaces and wherein the amount of black liquor combusted is increased as compared with the amount combusted in the same furnace operated without the addition of oxygen to the primary air.

  20. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, Arthur L. (Woodland Hills, CA)

    1987-07-28T23:59:59.000Z

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediatley above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone.

  1. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, A.L.

    1987-07-28T23:59:59.000Z

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediately above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone. 2 figs.

  2. Quantum black hole inflation

    E-Print Network [OSTI]

    M. B. Altaie

    2001-05-07T23:59:59.000Z

    In this paper we follow a new approach for particle creation by a localized strong gravitational field. The approach is based on a definition of the physical vacuum drawn from Heisenberg uncertainty principle. Using the fact that the gravitational field red-shifts the frequency modes of the vacuum, a condition on the minimum stregth of the gravitational field required to achieve real particle creation is derived. Application of this requirement on a Schwartzchid black hole resulted in deducing an upper limit on the region, outside the event horizon, where real particles can be created. Using this regional upper limit, and considering particle creation by black holes as a consequence of the Casimir effect, with the assumption that the created quanta are to be added to the initial energy, we deduce a natural power law for the development of the event horizon, and consequently a logarithmic law for the area spectrum of an inflating black hole. Application of the results on a cosmological model shows that if we start with a Planck-dimensional black hole, then through the process of particle creation we end up with a universe having the presently estimated critical density. Such a universe will be in a state of eternal inflation.

  3. Black Holes at Accelerators

    E-Print Network [OSTI]

    Bryan Webber

    2006-04-06T23:59:59.000Z

    In theories with large extra dimensions and TeV-scale gravity, black holes are copiously produced in particle collisions at energies well above the Planck scale. I briefly review some recent work on the phenomenology of this process, with emphasis on theoretical uncertainties and possible strategies for measuring the number of extra dimensions.

  4. Mid-American Review of Sociology, Volume 6, Number 2 (WINTER, 1981): Back Matter

    E-Print Network [OSTI]

    1981-01-01T23:59:59.000Z

    , Charles Vert. A New Look at Black Families. 2nd ed. Bayside, N.V.: General Hall, 1981. SUBSCRIPTION ORDER FORM . Editor-In-Chief Mid-American Review of Sociology University of Kansas Sociology Department Lawrence, Kansas 66045 TO WHOM IT MAY CONCERN...

  5. Smithsonian American Art Museum INVENTORIES OF AMERICAN PAINTING AND SCULPTURE

    E-Print Network [OSTI]

    Mathis, Wayne N.

    Smithsonian American Art Museum INVENTORIES OF AMERICAN PAINTING AND SCULPTURE GUIDELINES FOR REPORTING WORKS The INVENTORIES OF AMERICAN PAINTING AND SCULPTURE were created by the Smithsonian American collections around the country. The database for the Inventories references over 360,000 works from two

  6. BLACK HOLE AURORA POWERED BY A ROTATING BLACK HOLE

    SciTech Connect (OSTI)

    Takahashi, Masaaki [Department of Physics and Astronomy, Aichi University of Education, Kariya, Aichi 448-8542 (Japan); Takahashi, Rohta, E-mail: takahasi@phyas.aichi-edu.ac.j [Cosmic Radiation Laboratory, Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)

    2010-05-15T23:59:59.000Z

    We present a model for high-energy emission sources generated by a standing magnetohydrodynamical (MHD) shock in a black hole magnetosphere. The black hole magnetosphere would be constructed around a black hole with an accretion disk, where a global magnetic field could be originated by currents in the accretion disk and its corona. Such a black hole magnetosphere may be considered as a model for the central engine of active galactic nuclei, some compact X-ray sources, and gamma-ray bursts. The energy sources of the emission from the magnetosphere are the gravitational and electromagnetic energies of magnetized accreting matters and the rotational energy of a rotating black hole. When the MHD shock generates in MHD accretion flows onto the black hole, the plasma's kinetic energy and the black hole's rotational energy can convert to radiative energy. In this Letter, we demonstrate the huge energy output at the shock front by showing negative energy postshock accreting MHD flows for a rapidly rotating black hole. This means that the extracted energy from the black hole can convert to the radiative energy at the MHD shock front. When an axisymmetric shock front is formed, we expect a ring-shaped region with very hot plasma near the black hole; this would look like an 'aurora'. The high-energy radiation generated from there would carry to us the information for the curved spacetime due to the strong gravity.

  7. Responses of African economies to the international economic shocks: an

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    rate shocks and five to World price of oil shocks. Furthermore, we investigate the viability trade shocks in African economies modeled by the relationship between the fluctuations in the prices of the African economies after an international income, monetary or price shocks tend to be in general more

  8. Department of Industrial Engineering Spring 2011 African Climate Exchange II

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Industrial Engineering Spring 2011 African Climate Exchange II Overview Mr. Sisay Shimelis, the sponsor and contact at African Climate Exchange approached the Industrial for packaging of the product, to reduce automation and increase job availability. Approach All required demands

  9. Pan African Technologies | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompanyPCN Technology Jump2011) | OpenPalmyra, NewAfrican

  10. Shape of black holes

    E-Print Network [OSTI]

    Clement, María E Gabach

    2015-01-01T23:59:59.000Z

    It is well known that celestial bodies tend to be spherical due to gravity and that rotation produces deviations from this sphericity. We discuss what is known and expected about the shape of black holes' horizons from their formation to their final, stationary state. We present some recent results showing that black hole rotation indeed manifests in the widening of their central regions, limits their global shapes and enforces their whole geometry to be close to the extreme Kerr horizon geometry at almost maximal rotation speed. The results depend only on the horizon area and angular momentum. In particular they are entirely independent of the surrounding geometry of the spacetime and of the presence of matter satisfying the strong energy condition. We also discuss the the relation of this result with the Hoop conjecture.

  11. Dehumanization of the Black American Female: An American/Hawaiian Experience

    E-Print Network [OSTI]

    Hairston, Kimetta R.

    2008-01-01T23:59:59.000Z

    Education at the Penn State University – Harrisburg Campus.State University, Harrisburg Abstract The dehumanization of

  12. Black Pine Circle Project

    ScienceCinema (OSTI)

    Mytko, Christine

    2014-09-15T23:59:59.000Z

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  13. Black Pine Circle Project

    SciTech Connect (OSTI)

    Mytko, Christine

    2014-03-31T23:59:59.000Z

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  14. Moore honored with American Statistical Association award

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

    American Statistical Association Award Moore honored with American Statistical Association award Lisa Moore is the recipient of the 2013 Don Owen Award presented by the American...

  15. Black holes in massive gravity

    E-Print Network [OSTI]

    Babichev, Eugeny

    2015-01-01T23:59:59.000Z

    We review the black hole solutions of the ghost-free massive gravity theory and its bimetric extension and outline the main results on the stability of these solutions against small perturbations. Massive (bi)-gravity accommodates exact black hole solutions, analogous to those of General Relativity. In addition to these solutions, hairy black holes -- solutions with no correspondent in General Relativity -- have been found numerically, whose existence is a natural consequence of the absence of the Birkhoff's theorem in these theories. The existence of extra propagating degrees of freedom, makes the stability properties of these black holes richer and more complex than those of General Relativity. In particular, the bi-Schwarzschild black hole exhibits an unstable spherically symmetric mode, while the bi-Kerr geometry is also generically unstable, both against the spherical mode and against superradiant instabilities. If astrophysical black holes are described by these solutions, the superradiant instability o...

  16. Black Hole's 1/N Hair

    E-Print Network [OSTI]

    Gia Dvali; Cesar Gomez

    2012-03-29T23:59:59.000Z

    According to the standard view classically black holes carry no hair, whereas quantum hair is at best exponentially weak. We show that suppression of hair is an artifact of the semi-classical treatment and that in the quantum picture hair appears as an inverse mass-square effect. Such hair is predicted in the microscopic quantum description in which a black hole represents a self-sustained leaky Bose-condensate of N soft gravitons. In this picture the Hawking radiation is the quantum depletion of the condensate. Within this picture we show that quantum black hole physics is fully compatible with continuous global symmetries and that global hair appears with the strength B/N, where B is the global charge swallowed by the black hole. For large charge this hair has dramatic effect on black hole dynamics. Our findings can have interesting astrophysical consequences, such as existence of black holes with large detectable baryonic and leptonic numbers.

  17. The great American garage

    E-Print Network [OSTI]

    Miller, B. Alex (Brian Alex), 1977-

    2004-01-01T23:59:59.000Z

    How does one explore the suburban home? Go in through the garage, of course. Sales, bands, suicides, and business startups: The suburban garage is the most culturally flexible space in the entire American domestic environment. ...

  18. Asian American women entrepreneurs

    E-Print Network [OSTI]

    Suh, Clara J

    2014-01-01T23:59:59.000Z

    There are an estimated 620,300 firms owned by Asian American women nationwide, and they contribute $105 billion to the U.S. economy. They are also active in Greater Boston's innovation and entrepreneurship communities. ...

  19. The Economic Partnership Agreements Between the European Union and the African-Caribbean-

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    The Economic Partnership Agreements Between the European Union and the African-Caribbean- Pacific ............................................................................................................................ 33 #12;4 LIST OF ACRONYMS ACP African, Caribbean and Pacific [countries] AEC African Economic negotiating Economic Partnership Agreements (EPAs) with countries in the African, Caribbean and Pacific (ACP

  20. Black Africans in Barcelona, Spain: An Exploration of Integration into Catalan Society

    E-Print Network [OSTI]

    Osuji, Chinyere

    2006-01-01T23:59:59.000Z

    les minoreis elniques. Lerida, Spain: Universitat de L1eida.6 200 1-2004. Catalunya, Spain: Grinver. SA. Gozalvez Perez,Picanya (Valencia), Spain: Generalitat Valenciana. Makom •

  1. Voices of four African American and European American female principals and their leadership styles in a recognized urban school district

    E-Print Network [OSTI]

    Turner, Clara Thompson

    2004-11-15T23:59:59.000Z

    ............................................................................................................... 62 Case Study #1: Brandi Miller?s Story................................................................... 64 School #2............................................................................................................... 72 Case Study #2...

  2. Covering the Chicano Movement: Examining Chicano Activism Through Chicano, American, African American, and Spanish-Language Periodicals, 1965-1973

    E-Print Network [OSTI]

    Rodriguez, Elvia

    2013-01-01T23:59:59.000Z

    Colorado) El Grito del Norte (Espanola, New Mexico) ElOur Press! ,” El Grito del Norte, July 5, 1970. subscriptionWritings From El Grito Del Norte. Edited by Lorena Oropeza

  3. Freedom's Journal and El Clamor Publico: African American and Mexican American Cultural Fronts in Nineteenth-Century Newsprint

    E-Print Network [OSTI]

    Nunez, Arturo Romero

    2010-01-01T23:59:59.000Z

    Repository and Colonial Journal. Vol XII. Virginia: Americanin Virginia 1660- 1710. ” Journal of Social History 7.1 (M. “John B. Russwurm. ” The Journal of Negro History 13.4 (

  4. Observational Evidence for Black Holes

    E-Print Network [OSTI]

    Ramesh Narayan; Jeffrey E. McClintock

    2014-07-20T23:59:59.000Z

    Astronomers have discovered two populations of black holes: (i) stellar-mass black holes with masses in the range 5 to 30 solar masses, millions of which are present in each galaxy in the universe, and (ii) supermassive black holes with masses in the range 10^6 to 10^{10} solar masses, one each in the nucleus of every galaxy. There is strong circumstantial evidence that all these objects are true black holes with event horizons. The measured masses of supermassive black hole are strongly correlated with properties of their host galaxies, suggesting that these black holes, although extremely small in size, have a strong influence on the formation and evolution of entire galaxies. Spin parameters have recently been measured for a handful of black holes. Based on the data, there is an indication that the kinetic power of at least one class of relativistic jet ejected from accreting black holes may be correlated with black hole spin. If verified, it would suggest that these jets are powered by a generalized Penrose process mediated by magnetic fields.

  5. Dermoscopy of black-spot poison ivy

    E-Print Network [OSTI]

    Rader, Ryan K; Mu, Ruipu; Shi, Honglan; Stoecker, William V; Hinton, Kristen A

    2012-01-01T23:59:59.000Z

    CT, Bean AS. Black-spot poison ivy: A rare phenomenon. J AmJG, Lucky AW. Black spot poison ivy: A report of 5 cases andis unique for black-spot poison ivy. The UFLC-MS/MS urushiol

  6. Why Blue-Collar Blacks Help Less

    E-Print Network [OSTI]

    Smith, Sandra Susan; Young, Kara Alexis

    2013-01-01T23:59:59.000Z

    Exclude Black Men from Blue-Collar Jobs. Berkeley, CA:How Black and Latino Blue Collar Workers Make Decisionsof Sample Respondents Blue-Collar Latinos Blue-Collar Black

  7. Black Stars and Gamma Ray Bursts

    E-Print Network [OSTI]

    Tanmay Vachaspati

    2007-06-08T23:59:59.000Z

    Stars that are collapsing toward forming a black hole but are frozen near the Schwarzschild horizon are termed ``black stars''. Collisions of black stars, in contrast to black hole collisions, may be sources of gamma ray bursts, whose basic parameters are estimated quite simply and are found to be consistent with observed gamma ray bursts. Black star gamma ray bursts should be preceded by gravitational wave emission similar to that from the coalescence of black holes.

  8. Idaho_BlackCanyon

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School footballHydrogenIT | NationalMentoringWind Power -Mtn. Black

  9. http://cjp.sagepub.com/ Criminal Justice Policy Review

    E-Print Network [OSTI]

    Foroosh, Hassan

    justice, no discrimination thesis, discrimination thesis, Blacks/African Americans 1Penn State Harrisburg, Penn State Harrisburg, School of Public Affairs, 777 W. Harrisburg Pike, Middletown, PA 17057, USA

  10. Tectonic setting and origin of the Black Warrior basin

    SciTech Connect (OSTI)

    Thomas, W.A.; Whiting, B.M. (Univ. of Kentucky, Lexington, KY (United States). Dept. of Geological Sciences)

    1994-03-01T23:59:59.000Z

    The Black Warrior basin has a triangular outline that is framed by the Ouachita thrust belt on the southwest, the Appalachian thrust belt on the southeast, and the North American craton on the north. The stratigraphy of the Black Warrior basin includes two distinct parts: a Cambrian-Mississippian passive-margin carbonate-shelf succession, and a Mississippian-Pennsylvanian clastic succession, the lower (Mississippian) part of which grades northeastward into a carbonate-shelf facies. The provenance and dispersal system of the Mississippian-Pennsylvanian clastic deposits have been interpreted in four different ways, each of which has significantly different implications for origin of the basin: (1) Ouachita orogenic source and northeastward prograding; (2) Alabama Appalachian orogenic source and northwestward prograding; (3) Georgia-tennessee Appalachian orogenic source and westward prograding; and (4) cratonic source and southward prograding. Subsidence history determined from calculations of decompacted thickness indicates that (1) the Black Warrior basin is an orogenic foreland basin related primarily to the Ouachita thrust load on the southwest; (2) later emplacement of the Alabama Appalachian thrust belt modified the southeastern side of the Ouachita-related Black Warrior foreland basin; and (3) a separate foreland basin, representing the southern end of the Appalachian foreland basin, formed in response to the Georgia-Tennessee Appalachian thrust load. The previously used criteria do not necessarily support a unique interpretation, but synthesizing these data with subsidence history leads to the conclusion that the Black Warrior basin is a tectonically driven, orogenic foreland basin dominated by Ouachita thrusting and modified by Appalachian thrusting.

  11. Kraft black liquor combustion: Advancement in fundamental understanding

    SciTech Connect (OSTI)

    Clay, D.T.

    1987-10-01T23:59:59.000Z

    Self-generated fuel streams plus purchased fossil fuel and power supply the pulp and paper industry with its energy requirements. The total industry energy use for 1986 was approximately 2.3 Quad (2300 trillion Btus). Self-generated and residue fuels accounted for 57% of the energy requirements. Spent pulping liquors provide the single largest self-generated energy source, approximately one Quad (900 trillion Btus). The pulp and paper industry also leads the nation in cogeneration performance. In 1986 eighty-nine percent (89%) of the 46 billion KWHs generated were produced by cogeneration. Spent pulping liquors supply the single largest fuel source (35%) to these cogeneration facilities. Spent pulping liquors consist of solubilized wood organics, spent inorganic chemicals, and water. Since kraft pulp dominates the North American market, 74%, kraft black liquor is the dominant spent pulping liquor. Effective recovery of high level energy and chemicals from black liquor contributes heavily toward dominance of kraft pulping. The kraft chemical recovery cycle centers around the recovery boiler. Kraft recovery boilers have been commercially available for over 50 years. The potential still exists, however, for significant improvements in energy recovery and black liquor throughput. Potential energy benefits from black liquor combustion research amount to 30 trillion Btus. Energy recovery increases often are an additional benefit from modifications made to increase black liquor throughput. Capacity increases of at least 5% are often achievable. Increased energy productivity of the kraft chemical recovery boiler will come by incorporation of improved fundamental knowledge into the technology used for boiler upgrades and new boiler construction. 5 refs., 9 figs.

  12. Optical black holes and solitons

    E-Print Network [OSTI]

    Shawn Westmoreland

    2010-12-21T23:59:59.000Z

    We exhibit a static, cylindrically symmetric, exact solution to the Euler-Heisenberg field equations (EHFE) and prove that its effective geometry contains (optical) black holes. It is conjectured that there are also soliton solutions to the EHFE which contain black hole geometries.

  13. Black Holes of Negative Mass

    E-Print Network [OSTI]

    R. B. Mann

    1997-05-06T23:59:59.000Z

    I demonstrate that, under certain circumstances, regions of negative energy density can undergo gravitational collapse into a black hole. The resultant exterior black hole spacetimes necessarily have negative mass and non-trivial topology. A full theory of quantum gravity, in which topology-changing processes take place, could give rise to such spacetimes.

  14. Black Beans and Rice Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Black Beans and Rice Ingredients: 1 teaspoon vegetable oil 1 medium onion, chopped 2 bay leaves 4 cloves garlic, minced 2 (15 oz.) cans black beans, drained and rinsed 1 tbsp. cilantro 15 ounces low-fat, shredded Directions 1. Rinse beans with water in colander to remove sodium. 2. Sauté onions, garlic

  15. Black Bean Stuffed Peppers Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    except cheese. 4. Fill each pepper half with bean mixture and place in pan. 5. Pour 1/4 cup waterBlack Bean Stuffed Peppers Ingredients: Non stick cooking spray 3 green peppers 15 ounces black beans, canned, drained and rinsed to remove sodium 8 ounces corn, canned 1 cup brown rice, cooked 1

  16. THE REGISTRAR WITTENBERG UNIVERSITY

    E-Print Network [OSTI]

    Bogaerts, Steven

    Blacks in Contemporary American Cinema 3 CINE XXX 3 NONE AAS 3530 Survey of Black Independent Cinema 3.S. Constitutional Law: Pre-Civil Rights Movements 3 POLI XXX 3 NONE Review needed - Consult the Political Science - Consult the Political Science Department AAS 3800 African American Education 3 EDUC XXX 3 NONE Review

  17. Southern Black women's orientations toward interracial relations: a study of a small nonmetropolitan-urban East Texas town, 1970-1977

    E-Print Network [OSTI]

    Stanley, William David

    1982-01-01T23:59:59.000Z

    the pleasure of being associated with. DEDICATION. vi LIST OF TABLES. LIST OF FIGURES. xiii LIST OF DIRTY'%. ~ I. INTRCDUCTION. Statement of the Problem. The Study Setting. Study Cb jectives. Approach of the Study. 1 2 3 5 ~ II. BLACKOUTS... role in all phases of mainstream America? 5 Almost evezyarm concerned ~ledges that Black Americans on the whole have made considvumble gains during the last ~ and are ~ a bright future. Many Black families, urban and rural Eiistorically, relations...

  18. african region summary: Topics by E-print Network

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

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 12 Regional Summary Gulf of Mexico Region Management...

  19. african monsoon onset: Topics by E-print Network

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

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 13 Local versus regional-scale characteristics of monsoon...

  20. african monsoon multidisciplinary: Topics by E-print Network

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

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 12 Coupled LandAtmosphere Intraseasonal Variability of the...

  1. african virus adapting: Topics by E-print Network

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

    African hosts. Fungal Biology 118: 168-179. www 382 Cowpox Virus in CiteSeer Summary: depression and lethargy, anorexia, and recumbency until death. A short time later, another...

  2. african boomslang dispholidus: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  3. african lungfish protopterus: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  4. african dormouse graphiurus: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  5. african viviparid clinid: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  6. african multimammate rat: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  7. african breadfruit treculia: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  8. african chironomid polypedilum: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  9. african glossina fuscipes: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  10. african strain mai1: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  11. african great lakes: Topics by E-print Network

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

    7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 FISH COMMUNITIES IN THE EAST AFRICAN GREAT LAKES PEUPLEMENTS ICHTHYOLOGIQUES CiteSeer...

  12. Thermal and mechanical development of the East African Rift System

    E-Print Network [OSTI]

    Ebinger, Cynthia Joan

    1988-01-01T23:59:59.000Z

    The deep basins, uplifted flanks, and volcanoes of the Western and Kenya rift systems have developed along the western and eastern margins of the 1300 km-wide East African plateau. Structural patterns deduced from field, ...

  13. Mentoring African Research in Mathematics (MARM) Call for prospective mentors

    E-Print Network [OSTI]

    Dixon, Peter

    Mentoring African Research in Mathematics (MARM) Call for prospective mentors The London and its teaching in universities in Africa. Four mentoring partnerships are to be awarded, each world, professional mentoring and opportunities for periodic research travel will contribute

  14. Water availability, piospheres and evolution in African ruminants 

    E-Print Network [OSTI]

    Derry, Julian F; Dougill, Andy

    2006-07-21T23:59:59.000Z

    Water dependency has consequences for the behaviour of African large herbivores from day-to-day and season-to-season. Independently, there have been comparisons made between the water-dependencies of these species and the consequent impact...

  15. african foods part: Topics by E-print Network

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

    - Part III - U.S. Backlash Posted in May 24th, 2008 by Climate Patrol in Biofuel, Food Crisis, Sustainability In the last few 8 Elemo et al. Chemical evaluation of African palm...

  16. african horse sickness: Topics by E-print Network

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

    vectors may carry the virus into AHS-free regions. Some authors speculate that global warming could increase the risk for spread of arthropod-borne diseases such as African horse...

  17. asymptomatic african migrants: Topics by E-print Network

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

    or vectors may carry the virus into AHS-free regions. Some authors speculate that global warming could increase the risk for spread of arthropod-borne diseases such as African...

  18. african horse sickness virus: Topics by E-print Network

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

    vectors may carry the virus into AHS-free regions. Some authors speculate that global warming could increase the risk for spread of arthropod-borne diseases such as African horse...

  19. Andrew Case "American Environmental History"

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Andrew Case History "American Environmental History" Spring 2008 Advisor: William Cronon Classics, Richard. "It's Your Misfortune and None of My Own": A New History of the American West. (Norman

  20. Latin American and Caribbean Studies

    E-Print Network [OSTI]

    Saldin, Dilano

    Latin American and Caribbean Studies Certificate About Us UWM graduates in the 21st century American and Caribbean Studies Certificate Program (LACS) will be especially well-prepared for careers academic focus in Latin American and Caribbean languages, histories, and cultures. However, the LACS

  1. Successful African American students in two-way immersion programs: parent and student perceptions 

    E-Print Network [OSTI]

    Boone, Sonia Kay

    2009-05-15T23:59:59.000Z

    participation 2.) The evolution of the modern two-way immersion language program via its development through bilingual education, and 3.) The development of Canadian twoway immersion language programs, and how political, economic, and cultural factors have...

  2. african-american adolescent girls: Topics by E-print Network

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

    underperformed relative to boys in science, technology, engineering, and mathematics. Brown, Christia Spears; Leaper, Campbell 2010-01-01 157 JGIM BRIEF REPORTS Community and...

  3. African American Women in Appalachia: Personal Expressions of Race, Place and Gender

    E-Print Network [OSTI]

    Barbour-Payne, Yunina Carol

    2014-06-04T23:59:59.000Z

    Kentucky, Tennessee and West Virginia. They also represent the first and second generation members of the Affrilachian Poets. Both the women 8 themselves (bodies and experiences) and their works offer points of departure for conversations regarding... of “Quantum physics, Appalachian culture, gender equality and mountaintop removal” (CrystalGood.net). Born and raised in the region of Appalachia, she is a native of West Virginia and an activist of issues facing Appalachians of all kinds. She credits...

  4. african-american women participating: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  5. Colorectal Cancer Screening and Young African-American Men: Male Role Norms, Knowledge, Attitudes, and Perceptions

    E-Print Network [OSTI]

    Rogers, Charles Ray

    2013-12-05T23:59:59.000Z

    of these leaders fought numerous battles in the background to get me to this point. For this, I am forever grateful and hope that my success will not only serve as a small token of my appreciation for each of you, but will also attract other bright students... in the United States, CRC screening (CRCS) uptake is relatively low, especially among groups that lack health insurance or a usual source of care (Breen et al., 2001). In addition to the lack of access to screening and limited or no health insurance, other...

  6. Art in Special Collections: Latino and African American Fine Art and Photography Collections in Academic Institutions

    E-Print Network [OSTI]

    Hankins, Rebecca; Juarez, Miguel

    2010-05-15T23:59:59.000Z

    . enhannulled. nullontent. anullailable. nullia. broadband. is. nullreatinnull. a. senullondnullnulleneration.dinullide.null nullnull .In.nullnullnullnull.the.null.S..Connullress.appronull priated. nullnull.null. billion. to. establish. the. nullroadband.... nullenullhnolonully. nullpportunities.nullronullranull.(nullnullnullnullnull.that.pronullides.anullards.to.elinullible. entities.to.denullelop.and.enullpand.broadband.sernullinulles.to.unsernulled. and.undersernulled.areas.and.inullpronulle.anullnulless.to.broadband...

  7. Moving Forward: A Weight Lossg g Intervention of African-American

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    . Poor diet, lack of regular physical activity and obesity contribute to breast cancer progressionobesity-binding protein (IGFBP-3) ­ Contributes to chronic inflammation #12;Diet, Physical Activity and B t CBreast Cancer of insulin-like growth factors (IGF-1) and insulin-like growth factor binding protein (IGFBP 3)factor

  8. Examining the world of subcultural existence: a descriptive analysis of African American management experiences and values

    E-Print Network [OSTI]

    Stephens, Chandra D.

    2007-04-25T23:59:59.000Z

    r e a l w a y s t h e r e f o r Mom and us k i d s . I ? l l n e v e r f o r g e t t h e k i n d n e s s a n d s i g n i f i c a n c e o f e a c h o f y o u i n m y l i f e . vi ACKNOWLEDGEMENTS This journey could... and development of people. A h u g e t h a n k s t o m y t r a v e l i n g c o h o r t s , B e r t J e n n i n g s a n d J o h n n y O ? C o n n o r . We kept each other inspired during those long drives through the pastures and country vii...

  9. Visibly Invisible: Uncovering Identity for African American Women at an Academically Selective University

    E-Print Network [OSTI]

    Crear, Shelah Flowers

    2013-07-31T23:59:59.000Z

    None of this would have been worth it without your love, support, patience and steadfast belief in me. We did it. To Rebellion Seeker, Brenda, and Reagan You gave me a wonderful gift?your voice. Thank you for being so open and honest... Reagan.................................................................................... 107 Their Shared Experiences............................................................................... 120 Summary of Findings...

  10. african-american crack abusers: Topics by E-print Network

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

    criminal justice system rather than to treatment for legal problems caused by substance abuse (Lowe and Alston 1973), higher rates of drug-related homicide deaths (Harper and...

  11. Religion and womanism in the lives of Central Texas African American Baptist women

    E-Print Network [OSTI]

    Turner, Deidra Rochelle

    2009-05-15T23:59:59.000Z

    that continuously encouraged me. To my husband, Darron, thank you for being a rock and a sounding board. To my parents, James and Queen, thank you for instilling in me a strong belief system and for being role models of faith. To Karen Atchison, thank you... foods (Leviticus 11) or cook on Sunday (Exodus 35). Because the husband is the head of the household, the pastor did not allow his wife to work, and my mother soon followed suit (Colossians 3). I was often brought before the congregation to verbally...

  12. African American citizen soldiers in Galveston and San Antonio, Texas, 1880-1906

    E-Print Network [OSTI]

    Blair, John Patrick

    2009-05-15T23:59:59.000Z

    and San Antonio; yet, their service has rarely obtained scholarly attention. Often discounted by historians as mere social clubs or deemed too few and insignificant to warrant study, these men sought not only to demonstrate their citizenship...

  13. African American Women in Appalachia: Personal Expressions of Race, Place and Gender 

    E-Print Network [OSTI]

    Barbour-Payne, Yunina Carol

    2014-06-04T23:59:59.000Z

    their experiences to Appalachian regional and cultural history. On another level, survival 3 means withstanding the emotionally traumatic experience of community dispossession, land/environment degradation, and physical abuse of women’s bodies... of people in communities that bear a disproportionate impact of environmental hazards” (Cole and Foster 11). The persona in “BOOM BOOM,” describes strip mining and the experiences of women in West Virginia. The poem reflects upon interactions between...

  14. Climate Change, Justice and Adaptation1 among African American Communities in the2

    E-Print Network [OSTI]

    Douglas, Ellen M.

    are representative of small, resource poor communities that29 are particularly prone to increased flooding, storms to increased53 flooding due to both sea level rise and projected increases in precipitation and river flows as as a result of sea level rise due to climate change,58 continued land subsidence, and probable increases

  15. Four African American Male Principals and Their Leadership in Urban Elementary Schools

    E-Print Network [OSTI]

    Moultry, Edrick George

    2014-04-29T23:59:59.000Z

    , and concrete (Gilligan, 1982; Mayeroff, 1965, 1971; Noddings, 1984, 2002; Tronto, 1993). It is a part of a belief system that motivates and acts as a compass that guides our 18 way (Pang, 2005). A caring centered approach to multicultural education... is built on the significance of establishing trusting relationships and understanding the sociocultural context of learning. Essentially, it is a relationship-centered and culture-centered framework in education (Pang, 2005). The connection between...

  16. Exploring Risk and Protective Factors Among African American Males in Alternative and General Education Settings

    E-Print Network [OSTI]

    Crossley, Tia Billy

    2012-02-14T23:59:59.000Z

    education and discipline needs. As such, they pose a challenge for many educators (Foley & Pang, 2006; Tsang, 2004). For the purpose of this paper, an alternative school setting refers to any public nontraditional school setting that services students who...

  17. Black optic display

    DOE Patents [OSTI]

    Veligdan, James T. (Manorville, NY)

    1997-01-01T23:59:59.000Z

    An optical display includes a plurality of stacked optical waveguides having first and second opposite ends collectively defining an image input face and an image screen, respectively, with the screen being oblique to the input face. Each of the waveguides includes a transparent core bound by a cladding layer having a lower index of refraction for effecting internal reflection of image light transmitted into the input face to project an image on the screen, with each of the cladding layers including a cladding cap integrally joined thereto at the waveguide second ends. Each of the cores is beveled at the waveguide second end so that the cladding cap is viewable through the transparent core. Each of the cladding caps is black for absorbing external ambient light incident upon the screen for improving contrast of the image projected internally on the screen.

  18. Strings, higher curvature corrections, and black holes

    E-Print Network [OSTI]

    Thomas Mohaupt

    2005-12-05T23:59:59.000Z

    We review old and recent results on subleading contributions to black hole entropy in string theory.

  19. Journal Titles American Orthoptic

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    Search Journal Titles American Orthoptic Journal Arctic Anthropology Contemporary Literature Ecological Restoration Journal of Human Resources Land Economics Land Management Pkg Landscape Journal Luso-Brazilian Review Monatshefte Native Plants Journal SubStance Article Copies/Permissions Journal Ebooks Library

  20. Thermodynamics of regular black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Yong-Wan Kim; Young-Jai Park

    2008-09-21T23:59:59.000Z

    We investigate thermodynamics for a magnetically charged regular black hole (MCRBH), which comes from the action of general relativity and nonlinear electromagnetics, comparing with the Reissner-Norstr\\"om (RN) black hole in both four and two dimensions after dimensional reduction. We find that there is no thermodynamic difference between the regular and RN black holes for a fixed charge $Q$ in both dimensions. This means that the condition for either singularity or regularity at the origin of coordinate does not affect the thermodynamics of black hole. Furthermore, we describe the near-horizon AdS$_2$ thermodynamics of the MCRBH with the connection of the Jackiw-Teitelboim theory. We also identify the near-horizon entropy as the statistical entropy by using the AdS$_2$/CFT$_1$ correspondence.

  1. Black Hole Interior Mass Formula

    E-Print Network [OSTI]

    Parthapratim Pradhan

    2014-05-06T23:59:59.000Z

    We argue by explicit computations that, although the area product, horizon radii product, entropy product and \\emph {irreducible mass product} of the event horizon and Cauchy horizon are universal, the \\emph{surface gravity product}, \\emph{surface temperature product} and \\emph{Komar energy product} of the said horizons do not seem to be universal for Kerr-Newman (KN) black hole space-time. We show the black hole mass formula on the \\emph{Cauchy horizon} following the seminal work by Smarr\\cite{smarr} for the outer horizon. We also prescribed the \\emph{four} laws of black hole mechanics for the \\emph{inner horizon}. New definition of the extremal limit of a black hole is discussed.

  2. Freeways and Free Speech, Rail Cars and Rancheras: Geographic and Linguistic Mobility in Contemporary Mexican and Mexican-American Cultural Production

    E-Print Network [OSTI]

    Postma, Regan Lee

    2011-08-31T23:59:59.000Z

    . Denise Segura and Patricia Zavella in Women and Migration in the US-Mexico Borderlands highlight the presence of structural violence in migratory experiences. These include gender inequality, racism, and economic policies that create unequal access... language functions as violence in hate speech, torture, and military policies that make declaring homosexual orientation a punishable act. Utilizing African-American author Toni Morrison’s stories and anecdotes in which language is considered as a living...

  3. South African National Biodiversity Institute and University of Cape Town (South Africa) Postdoctoral Fellow (1position)

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    South African National Biodiversity Institute and University of Cape Town (South Africa from designated groups in terms of South Africa's employment equity targets will have preference) Postdoctoral Fellow (1position) (Two year Contract) The South African National Biodiversity Institute

  4. Fishing in Black Holes

    E-Print Network [OSTI]

    A. Brotas

    2006-09-01T23:59:59.000Z

    The coordinate system $(\\bar{x},\\bar{t})$ defined by $r = 2m + K\\bar{x}- c K \\bar{t}$ and $t=\\bar{x}/cK - 1 /cK \\int_{r_a}^r (1- 2m/r + K^2)^{1/2} (1 - 2m/r)^{-1}dr$ allow us to write the Schwarzschild metric in the form: \\[ds^2=c^2 d\\bar{t}^2 + (W^2/K^2 - 2W/K) d\\bar{x}^2 + 2c (1 + W/K) d\\bar{x}d\\bar{t} - r^2 (d\\theta^2 + cos^2\\theta d\\phi^2)\\] with $W=(1 - 2m/r + K^2)^{1/2}$, in which the coefficients' pathologies are moved to $r_K = 2m/(1+K^2)$. This new coordinate system is used to study the entrance into a black hole of a rigid line (a line in which the shock waves propagate with velocity c).

  5. 86 BYU 20072008 Undergraduate Catalog American Heritage

    E-Print Network [OSTI]

    Hart, Gus

    86 BYU 2007­2008 Undergraduate Catalog American Heritage American Heritage 100. American Heritage, and patterns of historical development. American Studies American Studies Office 4095 JFSB Kerry Soper; literary criticism; historical research; and social, political, and economic analysis. The program provides

  6. Kraft black liquor delivery systems

    SciTech Connect (OSTI)

    Adams, T.N.; Empie, H.L.; Obuskovic, N.; Spielbauer, T.M.

    1990-02-01T23:59:59.000Z

    Improvement of spray nozzles for black liquor injection into kraft recovery furnaces is expected to result from obtaining a controlled, well-defined droplet size distribution. Work this year has centered on defining the capabilities of commercial black liquor nozzles currently in use. Considerations of the observed mechanism of droplet formation suggest a major revision is needed in the theory of how droplets form from these nozzles. High resolution, high sensitivity video has been shown to be superior to flash x-ray as a technique for measuring the droplet size distribution as well as the formation history. An environmentally sound spray facility capable of spraying black liquor at temperatures up to normal firing conditions is being constructed before data acquisition continues. Preliminary correlations have been developed between liquor properties, nozzle design, and droplet size. Three aspects of nozzle design have been investigated: droplet size distribution, fluid sheet thickness, and flow and pressure drop characteristics. The standard deviation about the median droplet size for black liquor is nearly the same as the for a wide variety of other fluids and nozzle types. Preliminary correlation for fluid sheet thickness on the plate of a splashplate nozzle show the strong similarities of black liquor to other fluids. The flow and pressure drop characteristic of black liquor nozzle, follow a simple two-term relationship similar to other flow devices. This means that in routine mill operation of black liquor nozzles only the fluid acceleration in the nozzle is important, viscous losses are quiet small. 21 refs., 53 figs., 10 tabs.

  7. Cost comparison of selected US and South African coal mines

    SciTech Connect (OSTI)

    Not Available

    1990-04-01T23:59:59.000Z

    The report on the South African coal industry is the fourth in a series of studies on coal exporting countries requested by the House Appropriations Committee. The committee requested that the basic differences in mining costs for U.S. and foreign mines be identified, especially those costs incurred in complying with health, safety, and environmental regulations. Basic costs in extracting raw coal are analyzed for two mining methods -- underground conventional mining and open-pit operations. In the report there is also a limited analysis of the relative market competitiveness of selected South African and U.S. steam coal mines in electric utility markets in Japan, Western Europe, and the U.S. Gulf Coast area. The South African Government prohibits the exports of hard metallurgical coal.

  8. PRELIMINARY INVESTIGATION ON THE DISTRIBUTION OF AFRICANIZED HONEY BEES IN ARGENTINA

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PRELIMINARY INVESTIGATION ON THE DISTRIBUTION OF AFRICANIZED HONEY BEES IN ARGENTINA A. DIETZ, R The preliminary results of a survey for Africanized honey bees conducted in 17 provinces of Argentina from January. The subsequent spread of Africanized bees into Argentina has not been clearly established. KEMPFF MERCADO (1973

  9. New American Home 2009 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2008-12-01T23:59:59.000Z

    This brochure details the New American Home 2009, which demonstrates the use of innovative building materials, cutting-edge design, and the latest construction techniques.

  10. Leonard Wood and the American Empire 

    E-Print Network [OSTI]

    Pruitt, James Herman

    2012-07-16T23:59:59.000Z

    During the ten years following the Spanish American War (1898 to 1908), Major General Leonard Wood served as the primary agent of American imperialism. Wood was not only a proconsul of the new American Empire; he was a ...

  11. International black tea market integration and price discovery 

    E-Print Network [OSTI]

    Dharmasena, Kalu Arachchillage Senarath Dhananjaya Bandara

    2004-09-30T23:59:59.000Z

    In this thesis we study three basic issues related to international black tea markets: Are black tea markets integrated? Where is the price of black tea discovered? Are there leaders and followers in black tea markets? We use two statistical...

  12. Black hole mimickers: Regular versus singular behavior

    SciTech Connect (OSTI)

    Lemos, Jose P. S.; Zaslavskii, Oleg B. [Centro Multidisciplinar de Astrofisica, CENTRA, Departamento de Fisica, Instituto Superior Tecnico-IST, Universidade Tecnica de Lisboa-UTL, Avenida Rovisco Pais 1, 1049-001 Lisboa (Portugal); Astronomical Institute of Kharkov, V. N. Karazin National University, 35 Sumskaya Street, Kharkov, 61022 (Ukraine)

    2008-07-15T23:59:59.000Z

    Black hole mimickers are possible alternatives to black holes; they would look observationally almost like black holes but would have no horizon. The properties in the near-horizon region where gravity is strong can be quite different for both types of objects, but at infinity it could be difficult to discern black holes from their mimickers. To disentangle this possible confusion, we examine the near-horizon properties, and their connection with far away asymptotic properties, of some candidates to black mimickers. We study spherically symmetric uncharged or charged but nonextremal objects, as well as spherically symmetric charged extremal objects. Within the uncharged or charged but nonextremal black hole mimickers, we study nonextremal {epsilon}-wormholes on the threshold of the formation of an event horizon, of which a subclass are called black foils, and gravastars. Within the charged extremal black hole mimickers we study extremal {epsilon}-wormholes on the threshold of the formation of an event horizon, quasi-black holes, and wormholes on the basis of quasi-black holes from Bonnor stars. We elucidate whether or not the objects belonging to these two classes remain regular in the near-horizon limit. The requirement of full regularity, i.e., finite curvature and absence of naked behavior, up to an arbitrary neighborhood of the gravitational radius of the object enables one to rule out potential mimickers in most of the cases. A list ranking the best black hole mimickers up to the worst, both nonextremal and extremal, is as follows: wormholes on the basis of extremal black holes or on the basis of quasi-black holes, quasi-black holes, wormholes on the basis of nonextremal black holes (black foils), and gravastars. Since in observational astrophysics it is difficult to find extremal configurations (the best mimickers in the ranking), whereas nonextremal configurations are really bad mimickers, the task of distinguishing black holes from their mimickers seems to be less difficult than one could think of it.

  13. Brown oculocutaneous albinism is allelic to tyrosinase-positive oculocutaneous albinism in southern African Negroids

    SciTech Connect (OSTI)

    Manga, P.; Ramsay, M.; Kromberg, J.; Jenkins, T. [Univ. of the Witwatersrand, Johannesburg (South Africa)

    1994-09-01T23:59:59.000Z

    Brown oculocutaneous albinism (BOCA) is an autosomal recessive disorder involving a decrease in pigment of the skin, hair and eyes as well as decreased visual acuity. Evidence from two families who have co-existent BOCA and tyrosinase-positive oculocutaneous albinism (ty-pos OCA), suggests that the two conditions are allelic. Ty-pos OCA has been mapped to chromosome 15q11-q12 and the gene has been confirmed to be the human homologue (P) of the mouse pink-eyed dilute gene (p). Seven markers known to be linked to the P gene, D15S11, D15S10, MS14, GABA3, GABA5, IR10 and pCMW-1, were used to construct haplotypes in 5 families with BOCA. The haplotype data was subjected to linkage analysis and a maximum lod score of 2.85 ({theta} 0.0) was obtained. It has been reported previously that BOCA, in an Afro-American, was due to the lack of tyrosinase-protein 1 (Trp-1) in melanocytes. Trp-1 has been excluded as the disease-causing locus in the southern African families by linkage analysis with D9S43. A lod score of -2.02 was obtained at {theta} = 0.02.

  14. The State of California and Southern African Racism

    E-Print Network [OSTI]

    Harrington, John

    1972-01-01T23:59:59.000Z

    Corp. Cities Service Gas Co. Tenneco Corp. American CyanamidTedd McKune Investments Tenneco Chemicals Inc. (SuperiorTelephone and Telegraph Tenneco Oil Co. Texaco, Inc.

  15. african green revolution: Topics by E-print Network

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

    The revolution, rooted Takada, Shoji 3 42 SCIENTIFIC AMERICAN May 2008 Africa needs a green revolution. Food yields on the Renewable Energy Websites Summary: OPINION 42...

  16. Call for Papers and Panels Unleashing the Black Erotic

    E-Print Network [OSTI]

    Kunkle, Tom

    and the Hypersexuality of Black Women Alternative Modes of Black Love and Family The Politics and Economics of Porn

  17. Heat Engine of black holes

    E-Print Network [OSTI]

    Sadeghi, J

    2015-01-01T23:59:59.000Z

    As we know, the cosmological constant in different theories of gravity acts as a thermodynamics variable. The cosmological constant exists in different actions of gravity and also appears in the solution of such theories. These lead to use the black hole as a heat engines. Also, there are two values for the cosmological constant as positive and negative values. The case of negative cosmological constant supplies a natural realization of these engines in terms of the field theory description of the fluids to which they are holographically dual. In this paper, we are going to define heat engines for two different black holes as Dyonic BH and Kerr BH. And also, we calculate maximum efficiency for two black holes.

  18. Heat Engine of black holes

    E-Print Network [OSTI]

    J. Sadeghi; Kh. Jafarzade

    2015-04-29T23:59:59.000Z

    As we know, the cosmological constant in different theories of gravity acts as a thermodynamics variable. The cosmological constant exists in different actions of gravity and also appears in the solution of such theories. These lead to use the black hole as a heat engines. Also, there are two values for the cosmological constant as positive and negative values. The case of negative cosmological constant supplies a natural realization of these engines in terms of the field theory description of the fluids to which they are holographically dual. In this paper, we are going to define heat engines for two different black holes as Dyonic BH and Kerr BH. And also, we calculate maximum efficiency for two black holes.

  19. Energy on black hole spacetimes

    E-Print Network [OSTI]

    Alejandro Corichi

    2012-07-18T23:59:59.000Z

    We consider the issue of defining energy for test particles on a background black hole spacetime. We revisit the different notions of energy as defined by different observers. The existence of a time-like isometry allows for the notion of a total conserved energy to be well defined, and subsequently the notion of a gravitational potential energy is also meaningful. We then consider the situation in which the test particle is adsorbed by the black hole, and analyze the energetics in detail. In particular, we show that the notion of horizon energy es defined by the isolated horizons formalism provides a satisfactory notion of energy compatible with the particle's conserved energy. As another example, we comment a recent proposal to define energy of the black hole as seen by an observer at rest. This account is intended to be pedagogical and is aimed at the level of and as a complement to the standard textbooks on the subject.

  20. Weatherization Formula Grants - American Recovery and Reinvestment...

    Energy Savers [EERE]

    Weatherization Formula Grants - American Recovery and Reinvestment Act (ARRA) Weatherization Formula Grants - American Recovery and Reinvestment Act (ARRA) U.S. Department of...

  1. American Wind Energy Association Offshore WINDPOWER Conference...

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

    American Wind Energy Association Offshore WINDPOWER Conference & Exhibition American Wind Energy Association Offshore WINDPOWER Conference & Exhibition October 7, 2014 9:00AM EDT...

  2. Energy Innovation: Green Button Initiative Empowering Americans...

    Energy Savers [EERE]

    Energy Innovation: Green Button Initiative Empowering Americans to Save Energy and Money Energy Innovation: Green Button Initiative Empowering Americans to Save Energy and Money...

  3. Black Literary Suite: Kansas Authors Edition

    E-Print Network [OSTI]

    Wiggins, Meredith Joan

    2015-03-04T23:59:59.000Z

    authors were born or lived in the Sunflower State, and their work often reflects their time in Kansas. This Black Literary Suite exhibit highlights four important black writers—Langston Hughes, Gwendolyn Brooks, Frank Marshall Davis, and Kevin Young...

  4. Introduction to Black Hole Evaporation

    E-Print Network [OSTI]

    Pierre-Henry Lambert

    2014-01-16T23:59:59.000Z

    These lecture notes are an elementary and pedagogical introduction to the black hole evaporation, based on a lecture given by the author at the Ninth Modave Summer School in Mathematical Physics and are intended for PhD students. First, quantum field theory in curved spacetime is studied and tools needed for the remaining of the course are introduced. Then, quantum field theory in Rindler spacetime in 1+1 dimensions and in the spacetime of a spherically collapsing star are considered, leading to Unruh and Hawking effects, respectively. Finally, some consequences such as thermodynamics of black holes and information loss paradox are discussed.

  5. Hawking Emission and Black Hole Thermodynamics

    E-Print Network [OSTI]

    Don N. Page

    2006-12-18T23:59:59.000Z

    A brief review of Hawking radiation and black hole thermodynamics is given, based largely upon hep-th/0409024.

  6. The American Recovery

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssuesEnergy Solar Decathlon2001 Power PlantAPRIL 1, 2011TheAmerican

  7. American Physical Society awards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta Fe MetroWeinbergAmerican Physical Society

  8. American Venture Acceleration Fund

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta Fe MetroWeinbergAmericanSix regional

  9. American Physical Society Fellows

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWPAlumni Alumni PARC/I-CARES CERTIFICATE INofNuclear SocietyAmerican

  10. AMERICAN STATISTICAL ASSOCIATION

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4Residential17.Keeping PaceAMERICAN

  11. Understanding African Poverty: Beyond the Washington Consensus to the

    E-Print Network [OSTI]

    23 2 Understanding African Poverty: Beyond the Washington Consensus to the Millennium Development Poverty he era of structural adjustment, which can be dated approximately to the last two decades-based development lending of structural adjustment, it remains mired in poverty and debt. What went wrong

  12. african snake fish: Topics by E-print Network

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

    african snake fish First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 SPORT-FISHING USE AND VALUE: LOWER...

  13. african cichlid fish: Topics by E-print Network

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

    african cichlid fish First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Somatostatin Regulates Aggressive...

  14. Mentoring African Research in Mathematics (MARM) Application Form

    E-Print Network [OSTI]

    Dixon, Peter

    Mentoring African Research in Mathematics (MARM) Application Form Application Procedure Please give made, and any other relevant experience. 5. Which of the five types of mentoring activity (see notes applications for grants to support mathematics and its teaching in universities in Africa. Four mentoring

  15. Detection of upper mantle flow associated with the African Superplume

    E-Print Network [OSTI]

    Conrad, Clint

    with warm, less dense material, the African seismic anomaly has been ascribed to a long-lived thermal upwelling from the lower mantle. Such a large-scale upwelling should also affect the regional horizontal flow field in the upper mantle. To test this model, we compare seismic anisotropy inferred from shear-wave

  16. Contributed Paper Combating the Illegal Trade in African Elephant Ivory

    E-Print Network [OSTI]

    Wasser, Samuel

    product origin because the information they can provide typically begins only at the point of shipment detected by forensic information, which typically begins only at the shipping source. Keywords: African elephant, DNA, assignment tests, ivory trade, poaching, wildlife trafficking Combate del Comercio Ilegal de

  17. african computer scientists: Topics by E-print Network

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

    african computer scientists First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Quantum Computing Computer...

  18. Signatures of black holes at the LHC

    E-Print Network [OSTI]

    Marco Cavaglia; Romulus Godang; Lucien M. Cremaldi; Donald J. Summers

    2007-07-02T23:59:59.000Z

    Signatures of black hole events at CERN's Large Hadron Collider are discussed. Event simulations are carried out with the Fortran Monte Carlo generator CATFISH. Inelasticity effects, exact field emissivities, color and charge conservation, corrections to semiclassical black hole evaporation, gravitational energy loss at formation and possibility of a black hole remnant are included in the analysis.

  19. Black Shales Adina Paytan, Stanford University, USA

    E-Print Network [OSTI]

    Paytan, Adina

    Tales of Black Shales Adina Paytan, Stanford University, USA Several times during the middle of the Cretaceous period, between 125 and 80 million years ago, organic-carbon-rich black shales were deposited over large areas of the ocean floor. These black shales provide valuable information about past climates

  20. 6, 34193463, 2006 Black carbon or

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 6, 3419­3463, 2006 Black carbon or brown carbon M. O. Andreae and A. Gelencs´er Title Page Chemistry and Physics Discussions Black carbon or brown carbon? The nature of light-absorbing carbonaceous;ACPD 6, 3419­3463, 2006 Black carbon or brown carbon M. O. Andreae and A. Gelencs´er Title Page

  1. Absorption cross section in Lifshitz black hole

    E-Print Network [OSTI]

    Taeyoon Moon; Yun Soo Myung

    2012-10-05T23:59:59.000Z

    We derive the absorption cross section of a minimally coupled scalar in the Lifshitz black hole obtained from the new massive gravity. The absorption cross section reduces to the horizon area in the low energy and massless limit of s-wave mode propagation, indicating that the Lifshitz black hole also satisfies the universality of low energy absorption cross section for black holes.

  2. UCSB 2004 BLACK HISTORY MONTH CALENDAR Before Brown, Beyond Boundaries

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    : Gwendolyn Hampton, ghampton@sbahfs.org African Heritage Historical Displays ENTIRE MONTH OF FEBRUARY, DAILY:00 PM - 5:00 PM CABRILLO PAVILION ARTS CENTER Santa Barbara African Heritage Film Series More Info 10:00 PM - 4:00 PM, KARPELES MANUSCRIPT LIBRARY Santa Barbara African Heritage Film Series More Info

  3. Einstein, Black Holes Gravitational Waves

    E-Print Network [OSTI]

    Cook, Greg

    1 #12;Einstein, Black Holes and Gravitational Waves Gregory B. Cook Wake Forest University 2 #12;Einstein's Miraculous Year: 1905 · Einstein, A. "¨Uber einen die Erzeugung und Verwandlung des Lichtes Concerning the Production and Transformation of Light. · Einstein, A. "¨Uber die von der molekularkinetischen

  4. From Pinholes to Black Holes

    SciTech Connect (OSTI)

    Fenimore, Edward E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-10-06T23:59:59.000Z

    Pinhole photography has made major contributions to astrophysics through the use of “coded apertures”. Coded apertures were instrumental in locating gamma-ray bursts and proving that they originate in faraway galaxies, some from the birth of black holes from the first stars that formed just after the big bang.

  5. Black Hole Radiation and Volume Statistical Entropy

    E-Print Network [OSTI]

    Mario Rabinowitz

    2005-06-29T23:59:59.000Z

    The simplest possible equation for Hawking radiation, and other black hole radiated power is derived in terms of black hole density. Black hole density also leads to the simplest possible model of a gas of elementary constituents confined inside a gravitational bottle of Schwarzchild radius at tremendous pressure, which yields identically the same functional dependence as the traditional black hole entropy. Variations of Sbh can be obtained which depend on the occupancy of phase space cells. A relation is derived between the constituent momenta and the black hole radius which is similar to the Compton wavelength relation.

  6. First Floor Smithsonian American Art Museum

    E-Print Network [OSTI]

    Mathis, Wayne N.

    First Floor Smithsonian American Art Museum American Experience Folk Art Special ExhibitionsMillan Education Center Folk Art One Life Archives of American Art Gallery Recent AcquisitionsMuseum Store Museum Museum Graphic Arts American Art through 1940 America's Presidents The Struggle for Justice

  7. Black Hole Evaporation as a Nonequilibrium Process

    E-Print Network [OSTI]

    Hiromi Saida

    2008-11-11T23:59:59.000Z

    When a black hole evaporates, there arises a net energy flow from the black hole into its outside environment due to the Hawking radiation and the energy accretion onto black hole. Exactly speaking, due to the net energy flow, the black hole evaporation is a nonequilibrium process. To study details of evaporation process, nonequilibrium effects of the net energy flow should be taken into account. In this article we simplify the situation so that the Hawking radiation consists of non-self-interacting massless matter fields and also the energy accretion onto the black hole consists of the same fields. Then we find that the nonequilibrium nature of black hole evaporation is described by a nonequilibrium state of that field, and we formulate nonequilibrium thermodynamics of non-self-interacting massless fields. By applying it to black hole evaporation, followings are shown: (1) Nonequilibrium effects of the energy flow tends to accelerate the black hole evaporation, and, consequently, a specific nonequilibrium phenomenon of semi-classical black hole evaporation is suggested. Furthermore a suggestion about the end state of quantum size black hole evaporation is proposed in the context of information loss paradox. (2) Negative heat capacity of black hole is the physical essence of the generalized second law of black hole thermodynamics, and self-entropy production inside the matter around black hole is not necessary to ensure the generalized second law. Furthermore a lower bound for total entropy at the end of black hole evaporation is given. A relation of the lower bound with the so-called covariant entropy bound conjecture is interesting but left as an open issue.

  8. BSW process of the slowly evaporating charged black hole

    E-Print Network [OSTI]

    Liancheng Wang; Feng He; Xiangyun Fu

    2015-02-09T23:59:59.000Z

    In this paper, we study the BSW process of the slowly evaporating charged black hole. It can be found that the BSW process will also arise near black hole horizon when the evaporation of charged black hole is very slow. But now the background black hole does not have to be an extremal black hole, and it will be approximately an extremal black hole unless it is nearly a huge stationary black hole.

  9. North American SynchroPhasor Initiative (NASPI) Technical Report...

    Energy Savers [EERE]

    the North American SynchroPhasor Initiative, a collaboration between the North American electric industry (utilities, grid operators, vendors and consultants), the North American...

  10. Society of American Indian Government Employees Annual National Training Program

    Broader source: Energy.gov [DOE]

    Event includes plenary session, American Indian law classes, Native American youth workshops, cultural presentations, and a veterans program. Sponsored by the Society of American Indian Government...

  11. american subtropical area: Topics by E-print Network

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

    English American Studies Sussex, University of 30 Grant Title: AMERICAN ASSOCIATION OF UNIVERSITY WOMEN (AAUW) -AMERICAN FELLOWSHIPS Funding Opportunity Number: NA Engineering...

  12. american statistical association: Topics by E-print Network

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

    23 Grant Title: AMERICAN ASSOCIATION OF UNIVERSITY WOMEN (AAUW) -AMERICAN FELLOWSHIPS Funding Opportunity Number: NA Engineering Websites Summary: Grant Title: AMERICAN...

  13. Charged spinning black holes as particle accelerators

    SciTech Connect (OSTI)

    Wei Shaowen; Liu Yuxiao; Guo Heng; Fu Chune [Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000 (China)

    2010-11-15T23:59:59.000Z

    It has recently been pointed out that the spinning Kerr black hole with maximal spin could act as a particle collider with arbitrarily high center-of-mass energy. In this paper, we will extend the result to the charged spinning black hole, the Kerr-Newman black hole. The center-of-mass energy of collision for two uncharged particles falling freely from rest at infinity depends not only on the spin a but also on the charge Q of the black hole. We find that an unlimited center-of-mass energy can be approached with the conditions: (1) the collision takes place at the horizon of an extremal black hole; (2) one of the colliding particles has critical angular momentum; (3) the spin a of the extremal black hole satisfies (1/{radical}(3)){<=}(a/M){<=}1, where M is the mass of the Kerr-Newman black hole. The third condition implies that to obtain an arbitrarily high energy, the extremal Kerr-Newman black hole must have a large value of spin, which is a significant difference between the Kerr and Kerr-Newman black holes. Furthermore, we also show that, for a near-extremal black hole, there always exists a finite upper bound for center-of-mass energy, which decreases with the increase of the charge Q.

  14. Geothermal energy for American Samoa

    SciTech Connect (OSTI)

    Not Available

    1980-03-01T23:59:59.000Z

    The geothermal commercialization potential in American Samoa was investigated. With geothermal energy harnessed in American Samoa, a myriad of possibilities would arise. Existing residential and business consumers would benefit from reduced electricity costs. The tuna canneries, demanding about 76% of the island's process heat requirements, may be able to use process heat from a geothermal source. Potential new industries include health spas, aquaculture, wood products, large domestic and transhipment refrigerated warehouses, electric cars, ocean nodule processing, and a hydrogen economy. There are no territorial statutory laws of American Samoa claiming or reserving any special rights (including mineral rights) to the territorial government, or other interests adverse to a land owner, for subsurface content of real property. Technically, an investigation has revealed that American Samoa does possess a geological environment conducive to geothermal energy development. Further studies and test holes are warranted.

  15. energy company opens American branch

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    in clean-energy investment and delivering unique projects and innovative products and servicesenergy company opens American branch in West Sacramento Substainible energy for sustainable energy supply. Ecostream markets such things as solar roof panel installations and other long

  16. Biomass energy use in developing countries: An African perspective

    SciTech Connect (OSTI)

    Karekezi, S.; Ewagata, E. [AFREPREN and FWD, Nairobi (Kenya)

    1994-09-01T23:59:59.000Z

    Biomass forms the bulk of the energy supply of the developing world with the largest share consumed in the household sector as either fuelwood or charcoal for cooking, lighting and space heating. However there are a number of constraints facing the use of biomass if it is to be sustainable. Stephen Karekezi and Esther Ewagata of the African Energy Policy Research Network (AFREPREN) outline these constraints and discuss the modernisation of the traditional technologies now underway.

  17. The Orisha Changó and Other African Deities in Cuban Drama

    E-Print Network [OSTI]

    Lima, Robert

    1990-04-01T23:59:59.000Z

    the adversities suffered by the Africans through their diaspora and the oppressiveness of those who enslaved them, particularly in regard to their religious practices, their culture persevered. Today, many of the creative works of the Caribbean basin and Brazil... and the Congo River basin (Ibo, Efik, Mahi, Fon [Dahomey], Bantu, Bambara, Foula, Wolof, among others). The prevalence of one such motif, the Orishas, in modern Cuban literature is seen in works by such noted writers as the playwrights Carlos Felipe...

  18. Quantum Geometry and Black Holes

    E-Print Network [OSTI]

    G., J Fernando Barbero

    2015-01-01T23:59:59.000Z

    We present an overall picture of the advances in the description of black hole physics from the perspective of loop quantum gravity. After an introduction that discusses the main conceptual issues we present some details about the classical and quantum geometry of isolated horizons and their quantum geometry and then use this scheme to give a natural definition of the entropy of black holes. The entropy computations can be neatly expressed in the form of combinatorial problems solvable with the help of methods based on number theory and the use of generating functions. The recovery of the Bekenstein-Hawking law and corrections to it is explained in some detail. After this, due attention is paid to the discussion of semiclassical issues. An important point in this respect is the proper interpretation of the horizon area as the energy that should appear in the statistical-mechanical treatment of the black hole model presented here. The chapter ends with a comparison between the microscopic and semiclassical app...

  19. Black holes are almost optimal quantum cloners

    E-Print Network [OSTI]

    C. Adami; G. Ver Steeg

    2015-04-15T23:59:59.000Z

    If black holes were able to clone quantum states, a number of paradoxes in black hole physics would disappear. However, the linearity of quantum mechanics forbids exact cloning of quantum states. Here we show that black holes indeed clone incoming quantum states with a fidelity that depends on the black hole's absorption coefficient, without violating the no-cloning theorem because the clones are only approximate. Perfectly reflecting black holes are optimal universal "quantum cloning machines" and operate on the principle of stimulated emission, exactly as their quantum optical counterparts. In the limit of perfect absorption, the fidelity of clones is equal to what can be obtained via quantum state estimation methods. But for any absorption probability less than one, the cloning fidelity is nearly optimal as long as $\\omega/T\\geq10$, a common parameter for modest-sized black holes.

  20. Combustion properties of Kraft Black Liquors

    SciTech Connect (OSTI)

    Frederick, W.J. Jr.; Hupa, M. (Aabo Akademi, Turku (Finland))

    1993-04-01T23:59:59.000Z

    In a previous study of the phenomena involved in the combustion of black liquor droplets a numerical model was developed. The model required certain black liquor specific combustion information which was then not currently available, and additional data were needed for evaluating the model. The overall objectives of the project reported here was to provide experimental data on key aspects of black liquor combustion, to interpret the data, and to put it into a form which would be useful for computational models for recovery boilers. The specific topics to be investigated were the volatiles and char carbon yields from pyrolysis of single black liquor droplets; a criterion for the onset of devolatilization and the accompanying rapid swelling; and the surface temperature of black liquor droplets during pyrolysis, combustion, and gasification. Additional information on the swelling characteristics of black liquor droplets was also obtained as part of the experiments conducted.

  1. african high-level regional: Topics by E-print Network

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

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 6 FREEDOM TO INNOVATE BIOTECHNOLOGY IN AFRICAS...

  2. Remarks on Renormalization of Black Hole Entropy

    E-Print Network [OSTI]

    Sang Pyo Kim; Sung Ku Kim; Kwang-Sup Soh; Jae Hyung Yee

    1996-07-07T23:59:59.000Z

    We elaborate the renormalization process of entropy of a nonextremal and an extremal Reissner-Nordstr\\"{o}m black hole by using the Pauli-Villars regularization method, in which the regulator fields obey either the Bose-Einstein or Fermi-Dirac distribution depending on their spin-statistics. The black hole entropy involves only two renormalization constants. We also discuss the entropy and temperature of the extremal black hole.

  3. Probing the Constituent Structure of Black Holes

    E-Print Network [OSTI]

    Lukas Gruending; Stefan Hofmann; Sophia Müller; Tehseen Rug

    2014-12-12T23:59:59.000Z

    We calculate the cross section for scattering processes between graviton emitters on the near side of a Schwarzschild surface and absorbers on its far side, that is black hole constituents. We show that these scatterings allow to directly extract structural observables such as the momentum distribution of black hole constituents. For this we employ a quantum bound state description originally developed in quantum chromodynamics and recently applied to general relativity that allows to consider black holes in a relativistic Hartree like framework.

  4. Black hole initial data without elliptic equations

    E-Print Network [OSTI]

    István Rácz; Jeffrey Winicour

    2015-02-24T23:59:59.000Z

    We explore whether a new method to solve the constraints of Einstein's equations, which does not involve elliptic equations, can be applied to provide initial data for black holes. We show that this method can be successfully applied to a nonlinear perturbation of a Schwarzschild black hole by establishing the well-posedness of the resulting constraint problem. We discuss its possible generalization to the boosted, spinning multiple black hole problem.

  5. Absorption cross section of RN black hole

    E-Print Network [OSTI]

    Sini R.; V. C. Kuriakose

    2007-08-23T23:59:59.000Z

    The behavior of a charged scalar field in the RN black hole space time is studied using WKB approximation. In the present work it is assumed that matter waves can get reflected from the event horizon. Using this effect, the Hawking temperature and the absorption cross section for RN black hole placed in a charged scalar field are calculated. The absorption cross section $\\sigma _{abs}$ is found to be inversely proportional to square of the Hawking temperature of the black hole.

  6. Black holes with massive graviton hair

    E-Print Network [OSTI]

    Richard Brito; Vitor Cardoso; Paolo Pani

    2013-09-03T23:59:59.000Z

    No-hair theorems exclude the existence of nontrivial scalar and massive vector hair outside four-dimensional, static, asymptotically flat black-hole spacetimes. We show, by explicitly building nonlinear solutions, that black holes can support massive graviton hair in theories of massive gravity. These hairy solutions are, most likely, the generic end state of the recently discovered monopole instability of Schwarzschild black holes in massive graviton theories.

  7. International House Collection / William Black (collector)

    E-Print Network [OSTI]

    Handy, Todd C.

    International House Collection / William Black (collector) Revised by Erwin Wodarczak (2010 (collector). ­ 1950-1953. 45 p. of textual records. Biographical Sketch Born in London, England, William

  8. Thermoelectric DC conductivities from black hole horizons

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2014-10-14T23:59:59.000Z

    An analytic expression for the DC electrical conductivity in terms of black hole horizon data was recently obtained for a class of holographic black holes exhibiting momentum dissipation. We generalise this result to obtain analogous expressions for the DC thermoelectric and thermal conductivities. We illustrate our results using some holographic Q-lattice black holes as well as for some black holes with linear massless axions, in both $D=4$ and $D=5$ bulk spacetime dimensions, which include both spatially isotropic and anisotropic examples. We show that some recently constructed ground states of holographic Q-lattices, which can be either electrically insulating or metallic, are all thermal insulators.

  9. Black Hills Power- Commercial Energy Efficiency Programs

    Broader source: Energy.gov [DOE]

    Black Hills Power provides rebates for its commercial customers who install energy efficient heat pumps, motors, variable frequency drives, lighting, and water heaters. Custom rebates for approved...

  10. Black Holes: from Speculations to Observations

    E-Print Network [OSTI]

    Thomas W. Baumgarte

    2006-04-13T23:59:59.000Z

    This paper provides a brief review of the history of our understanding and knowledge of black holes. Starting with early speculations on ``dark stars'' I discuss the Schwarzschild "black hole" solution to Einstein's field equations and the development of its interpretation from "physically meaningless" to describing the perhaps most exotic and yet "most perfect" macroscopic object in the universe. I describe different astrophysical black hole populations and discuss some of their observational evidence. Finally I close by speculating about future observations of black holes with the new generation of gravitational wave detectors.

  11. Black Hills Power- Residential Customer Rebate Program

    Broader source: Energy.gov [DOE]

    Black Hills Power offers cash rebates to residential customers who purchase and install energy efficient equipment in their homes. Incentives exist for water heaters, demand control units, air...

  12. Strings, black holes, and quantum information

    SciTech Connect (OSTI)

    Kallosh, Renata; Linde, Andrei [Department of Physics, Stanford University, Stanford, California 94305 (United States)

    2006-05-15T23:59:59.000Z

    We find multiple relations between extremal black holes in string theory and 2- and 3-qubit systems in quantum information theory. We show that the entropy of the axion-dilaton extremal black hole is related to the concurrence of a 2-qubit state, whereas the entropy of the STU black holes, Bogomol'nyi-Prasad-Sommerfield (BPS) as well as non-BPS, is related to the 3-tangle of a 3-qubit state. We relate the 3-qubit states with the string theory states with some number of D-branes. We identify a set of large black holes with the maximally entangled Greenberger, Horne, Zeilinger (GHZ) class of states and small black holes with separable, bipartite, and W states. We sort out the relation between 3-qubit states, twistors, octonions, and black holes. We give a simple expression for the entropy and the area of stretched horizon of small black holes in terms of a norm and 2-tangles of a 3-qubit system. Finally, we show that the most general expression for the black hole and black ring entropy in N=8 supergravity/M theory, which is given by the famous quartic Cartan E{sub 7(7)} invariant, can be reduced to Cayley's hyperdeterminant describing the 3-tangle of a 3-qubit state.

  13. Black Liquor Research Program symposium: proceedings

    SciTech Connect (OSTI)

    Emerson, D.B.; Whitworth, B.A.

    1985-03-01T23:59:59.000Z

    In the paper pulp industry's recovery boilers, black liquor is sprayed in through nozzle guns near the top of the furnace. This report includes eight papers. (DLC)

  14. Lower Dimensional Black Holes: Inside and Out

    E-Print Network [OSTI]

    R. B. Mann

    1995-01-27T23:59:59.000Z

    I survey the physics of black holes in two and three spacetime dimensions, with special attention given to an understanding of their exterior and interior properties.

  15. Superconducting Hair on Charged Black String Background

    E-Print Network [OSTI]

    Lukasz Nakonieczny; Marek Rogatko

    2012-01-25T23:59:59.000Z

    Behaviour of Dirac fermions in the background of a charged black string penetrated by an Abelian Higgs vortex is elaborated. One finds the evidence that the system under consideration can support fermion fields acting like a superconducting cosmic string in the sence that a nontrivial Dirac fermion field can be carried by the system in question. The case of nonextremal and extremal black string vortex systems were considered. The influence of electric and Higgs charge, the winding number and the fermion mass on the fermion localization near the black string event horizon was studied. It turned out that the extreme charged black string expelled fermion fields more violently comparing to the nonextremal one.

  16. Approximate initial data for binary black holes

    E-Print Network [OSTI]

    Kenneth A. Dennison; Thomas W. Baumgarte; Harald P. Pfeiffer

    2006-08-26T23:59:59.000Z

    We construct approximate analytical solutions to the constraint equations of general relativity for binary black holes of arbitrary mass ratio in quasicircular orbit. We adopt the puncture method to solve the constraint equations in the transverse-traceless decomposition and consider perturbations of Schwarzschild black holes caused by boosts and the presence of a binary companion. A superposition of these two perturbations then yields approximate, but fully analytic binary black hole initial data that are accurate to first order in the inverse of the binary separation and the square of the black holes' momenta.

  17. A new spin on black hole hair

    E-Print Network [OSTI]

    Herdeiro, Carlos A R

    2014-01-01T23:59:59.000Z

    We show that scalar hair can be added to rotating, vacuum black holes of general relativity. These hairy black holes (HBHs) clarify a lingering question concerning gravitational solitons: if a black hole can be added at the centre of a boson star, as it typically can for other solitons. We argue that it can, but only if it is spinning. The existence of such HBHs is related to the Kerr superradiant instability triggered by a massive scalar field. This connection leads to the following conjecture: a (hairless) black hole which is afflicted by the superradiant instability of a given field must allow hairy generalizations with that field.

  18. Brandeis University Massachusetts

    E-Print Network [OSTI]

    Fraden, Seth

    for Nyanga schools Key Dilemmas x What is my connection to Black South Africans as a Black American outsider Northern Ireland Grenada South Africa The International Center for Ethics, Justice & Public Life #12 to do integrated course work and field work related to coexistence and issues of ethics and social

  19. Race and Male Employment in the Wake of the Great Recession

    E-Print Network [OSTI]

    Saldin, Dilano

    Race and Male Employment in the Wake of the Great Recession: Black Male Employment Rates by this Center), nearly half of working-age black males were not employed in many inner city neighborhoods.1 another devastating blow to inner city economies and the employment prospects of African American males

  20. National Society of Black EngineersNational Society of Black Engineers Columbia University Chapter

    E-Print Network [OSTI]

    Hone, James

    National Society of Black EngineersNational Society of Black Engineers Columbia University Chapter #12;Columbia University Greetings NSBE Family and Friends! My name is Ken Yearwood, the 2008-2009 Columbia University NSBE (National Society of Black Engineers) Chapter President. On behalf of the Columbia

  1. Rotating embedded black holes: Entropy and Hawking's radiation

    E-Print Network [OSTI]

    Ng Ibohal

    2004-12-27T23:59:59.000Z

    In this paper we derive a class of rotating embedded black holes. Then we study Hawking's radiation effects on these embedded black holes. The surface gravity, entropy and angular velocity are given for each of these black holes.

  2. Stability of Biomass-derived Black Carbon in Soils . | EMSL

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

    Stability of Biomass-derived Black Carbon in Soils . Stability of Biomass-derived Black Carbon in Soils . Abstract: Black carbon (BC) may play an important role in the global C...

  3. Competition and Reliability in North American Electricity Markets...

    Energy Savers [EERE]

    Electricity Markets Technical Workshop Competition and Reliability in North American Electricity Markets Technical Workshop Competition and Reliability in North American...

  4. american students utilizing: Topics by E-print Network

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

    PARTNERS American Institute of Chemical Engineers Alpha Omega Epsilon International Engineering & Technical Science Sorority American Society of Heating, Refrigerating and...

  5. Moral pressure : American democracy and Chinese human rights

    E-Print Network [OSTI]

    Chan, Stephanie Tze-Hua

    2011-01-01T23:59:59.000Z

    of the Sino-American agreement on nuclear cooperation, andof the Sino-American agreement on nuclear cooperation, and

  6. Fuel Cell Manufacturing: American Energy and Manufacturing Competitive...

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

    Fuel Cell Manufacturing: American Energy and Manufacturing Competitiveness Summit Fuel Cell Manufacturing: American Energy and Manufacturing Competitiveness Summit Presentation on...

  7. American Statistical Association Names Fellows for 2010 ALEXANDRIA VA (PRWEB) MAY 20, 2010 The American Statistical Association (ASA), the

    E-Print Network [OSTI]

    Ponce, V. Miguel

    American Statistical Association Names Fellows for 2010 ALEXANDRIA VA (PRWEB) MAY 20, 2010 ­ The American Statistical Association (ASA), the nation's preeminent professional statistical society, today the American Statistical Association The American Statistical Association (ASA), a scientific and educational

  8. Causticizing for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    Scott Sinquefeld; James Cantrell; Xiaoyan Zeng; Alan Ball; Jeff Empie

    2009-01-07T23:59:59.000Z

    The cost-benefit outlook of black liquor gasification (BLG) could be greatly improved if the smelt causticization step could be achieved in situ during the gasification step. Or, at a minimum, the increase in causticizing load associated with BLG could be mitigated. A number of chemistries have been proven successful during black liquor combustion. In this project, three in situ causticizing processes (titanate, manganate, and borate) were evaluated under conditions suitable for high temperature entrained flow BLG, and low temperature steam reforming of black liquor. The evaluation included both thermodynamic modeling and lab experimentation. Titanate and manganate were tested for complete direct causticizing (to thus eliminate the lime cycle), and borates were evaluated for partial causticizing (to mitigate the load increase associated with BLG). Criteria included high carbonate conversion, corresponding hydroxide recovery upon hydrolysis, non process element (NPE) removal, and economics. Of the six cases (three chemistries at two BLG conditions), only two were found to be industrially viable: titanates for complete causticizing during high temperature BLG, and borates for partial causticizing during high temperature BLG. These two cases were evaluated for integration into a gasification-based recovery island. The Larsen [28] BLG cost-benefit study was used as a reference case for economic forecasting (i.e. a 1500 tpd pulp mill using BLG and upgrading the lime cycle). By comparison, using the titanate direct causticizing process yielded a net present value (NPV) of $25M over the NPV of BLG with conventional lime cycle. Using the existing lime cycle plus borate autocausticizing for extra capacity yielded a NPV of $16M.

  9. Black Holes at the LHC: Progress since 2002

    SciTech Connect (OSTI)

    Park, Seong Chan [FRDP, Department of Physics and Astronomy, Seoul National University, Seoul (Korea, Republic of)

    2008-11-23T23:59:59.000Z

    We review the recent noticeable progresses in black hole physics focusing on the up-coming super-collider, the LHC. We discuss the classical formation of black holes by particle collision, the greybody factors for higher dimensional rotating black holes, the deep implications of black hole physics to the 'energy-distance' relation, the security issues of the LHC associated with black hole formation and the newly developed Monte-Carlo generators for black hole events.

  10. Cardiovascular disease, diabetes and established risk factors among populations of sub-Saharan African descent in Europe: a literature review

    E-Print Network [OSTI]

    Agyemang, Charles; Addo, Juliet; Bhopal, Raj; de-Graft Aikins, Ama; Stronks, Karien

    2009-08-11T23:59:59.000Z

    . Dutch African-Suriname men and women are less physically active than the White-Dutch whereas British African women are more physically active than women in the general population. Literature on psychosocial stress shows inconsistent results. Conclusion...

  11. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Jun Wei

    2005-03-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. This report covers Task 1.3, Simulative corrosion of candidate materials developed by refractory producers and in the laboratory based on the results of Task 1.1 and Task 1.2. Refractories provided by in-kind sponsors were tested by cup testing, density/porosity determinations, chemical analysis and microscopy. The best performing materials in the cup testing were fused cast materials. However, 2 castables appear to outperforming any of the previously tested materials and may perform better than the fused cast materials in operation. The basis of the high performance of these materials is the low open porosity and permeability to black liquor smelt.

  12. Information Technology: American National Standard for

    E-Print Network [OSTI]

    Information Technology: American National Standard for Information Systems-- Data Format Publication 500-245 Information Technology: American National Standard for Information Systems-- Data Format for the Interchange of Fingerprint, Facial, & Scar Mark & Tattoo (SMT) Information Sponsored by Information Technology

  13. American Range: Order (2014-CE-23006)

    Broader source: Energy.gov [DOE]

    DOE ordered American Range Corporation to pay a $8,000 civil penalty after finding American Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

  14. American Statistical Association National Science Foundation

    E-Print Network [OSTI]

    Bermúdez, José Luis

    American Statistical Association National Science Foundation U.S. Census Bureau ASA American Statistical Association 732 North Washington Street Alexandria, VA 22314-1943 U.S. government and analysis, statistical methodology and computing, information and behavioral science, and geography

  15. American Valve: Order (2010-CW-1411)

    Broader source: Energy.gov [DOE]

    DOE ordered American Valve, Inc. to pay a $5,000 civil penalty after finding American Valve had failed to certify that certain showerhead models comply with the applicable water conservation standards.

  16. Information Technology: American National Standard for Information

    E-Print Network [OSTI]

    Information Technology: American National Standard for Information Systems-- Data Format-271 Information Technology: American National Standard for Information Systems-- Data Format for the Interchange Sponsored by Information Access Division Information Technology Laboratory National Institute of Standards

  17. Information Technology: American National Standard for Information

    E-Print Network [OSTI]

    Information Technology: American National Standard for Information Systems-- Data Format 500-275 Information Technology: American National Standard for Information Systems-- Data Format Coleman, and Patrice Yuh, Editors Sponsored by Information Access Division Information Technology

  18. Dissertations Recently Completed on Latin American Theatre

    E-Print Network [OSTI]

    1980-04-01T23:59:59.000Z

    4 LATIN AMERICAN THEATRE REVIEW Dissertations Recently Completed on Latin American Theatre Ascarrunz-Gilman, Graciela. "El sentido religioso del teatro de Carlos Solór- zano." (California, Davis) Bixler, Jacqueline Eyring. "Theory and Technique...

  19. Austin E. Quigley Black Box Theater Proposal Form

    E-Print Network [OSTI]

    Hone, James

    -1- Austin E. Quigley Black Box Theater Proposal Form Sponsoring Organization indicate that you have read the Austin E. Quigley Black Box Theatre Policy and Procedure Guidelines

  20. Savannah River National Laboratory Meets with Historically Black...

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

    Savannah River National Laboratory Meets with Historically Black Colleges and Universities Savannah River National Laboratory Meets with Historically Black Colleges and...

  1. Home to Hargeisa: Migritude, Pan-Africanism, and the Politics of Movement from Banjo to Black Mamba Boy

    E-Print Network [OSTI]

    Foster, Christopher Ian

    2015-01-01T23:59:59.000Z

    a speech in 1880 titled “Ethiopia Stretching out Her HandsAfrica and its invasion of Ethiopia in 1935. Jama’s motheris now Djibouti, while Ethiopia (Abyssinia) conquered the

  2. Can Superconducting Cosmic Strings Piercing Seed Black Holes Generate Supermassive Black Holes in the Early Universe?

    E-Print Network [OSTI]

    Lake, Matthew J

    2015-01-01T23:59:59.000Z

    The discovery of a large number of supermassive black holes at redshifts $z> 6$, when the Universe was only nine hundred million years old, has raised the fundamental question of how such massive compact objects could form in a (cosmologically) short time interval. Each of the proposed standard scenarios for black hole formation, involving rapid accretion of seed black holes, or black hole mergers, faces severe theoretical difficulties in explaining the short time formation of supermassive objects. In the present Letter, we propose an alternative scenario for the formation of supermassive black holes in the early Universe in which energy transfer from superconducting cosmic strings, piercing small seed black holes, is the main physical process leading to rapid mass increase. The increase in mass of a primordial seed black hole pierced by two antipodal strings is estimated and it is shown that this increases linearly in time. Due to the high energy transfer rate from the cosmic strings, we find that supermassi...

  3. Topological Black Holes in Quantum Gravity

    E-Print Network [OSTI]

    J. Kowalski-Glikman; D. Nowak-Szczepaniak

    2000-07-31T23:59:59.000Z

    We derive the black hole solutions with horizons of non-trivial topology and investigate their properties in the framework of an approach to quantum gravity being an extension of Bohm's formulation of quantum mechanics. The solutions we found tend asymptotically (for large $r$) to topological black holes. We also analyze the thermodynamics of these space-times.

  4. Cooking with Black-Eyed Peas

    E-Print Network [OSTI]

    Anding, Jenna

    2008-12-09T23:59:59.000Z

    the most protein from the peas, serve them with grain foods such as corn, rice or wheat. A serving size is ? cup. Uses Use black-eyed peas as a tasty side dish or include it in casseroles, soups, and salads. Black-eyed peas are often packaged in 1- or 2...

  5. Primordial black holes and asteroid danger

    E-Print Network [OSTI]

    Alexander Shatskiy

    2008-02-21T23:59:59.000Z

    Probability for a primordial black hole to invade the Kuiper belt was calculated. We showed that primordial black holes of certain masses can significantly change asteroids' orbits. These events may result in disasters, local for our solar system and global for the Earth (like the Tunguska meteorite). We also estimated how often such events occur.

  6. The Kansas Black Bass Tournament Monitoring Program

    E-Print Network [OSTI]

    The Kansas Black Bass (Micropterus spp.) Tournament Monitoring Program was begun by the Kansas Fish and Game program of the Kansas Fish and Game Commission avoids both of these prob- lems. The Kansas Black Bass annually to each of the bass clubs in Kansas before the bulk of fishing begins, and clubs are asked

  7. Dynamics of Primordial Black Hole Formation

    E-Print Network [OSTI]

    J. C. Niemeyer; K. Jedamzik

    1999-01-21T23:59:59.000Z

    We present a numerical investigation of the gravitational collapse of horizon-size density fluctuations to primordial black holes (PBHs) during the radiation-dominated phase of the Early Universe. The collapse dynamics of three different families of initial perturbation shapes, imposed at the time of horizon crossing, is computed. The perturbation threshold for black hole formation, needed for estimations of the cosmological PBH mass function, is found to be $\\delta_{\\rm c} \\approx 0.7$ rather than the generally employed $\\delta_{\\rm c} \\approx 1/3$, if $\\delta$ is defined as $\\Delta M/\\mh$, the relative excess mass within the initial horizon volume. In order to study the accretion onto the newly formed black holes, we use a numerical scheme that allows us to follow the evolution for long times after formation of the event horizon. In general, small black holes (compared to the horizon mass at the onset of the collapse) give rise to a fluid bounce that effectively shuts off accretion onto the black hole, while large ones do not. In both cases, the growth of the black hole mass owing to accretion is insignificant. Furthermore, the scaling of black hole mass with distance from the formation threshold, known to occur in near-critical gravitational collapse, is demonstrated to apply to primordial black hole formation.

  8. Black holes cannot support conformal scalar hair

    E-Print Network [OSTI]

    T. Zannias

    1994-09-14T23:59:59.000Z

    It is shown that the only static asymptotically flat non-extrema black hole solution of the Einstein-conformally invariant scalar field equations having the scalar field bounded on the horizon, is the Schwarzschild one. Thus black holes cannot be endowed with conformal scalar hair of finite length.

  9. Quantum Entropy of Charged Rotating Black Holes

    E-Print Network [OSTI]

    R. B. Mann

    1996-07-10T23:59:59.000Z

    I discuss a method for obtaining the one-loop quantum corrections to the tree-level entropy for a charged Kerr black hole. Divergences which appear can be removed by renormalization of couplings in the tree-level gravitational action in a manner similar to that for a static black hole.

  10. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY

    E-Print Network [OSTI]

    Willenbring, Jeb F.

    fellowship. c 2002 American Mathematical Society 4393 #12;4394 JEB F. WILLENBRING on V , under the usual

  11. NATIVE AMERICAN HISTORY Libby R. Tronnes

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    , and Demography" CAIH (2002) Indians in the American South Post-Contact Gallay, Alan. The Indian Slave Trade

  12. Southern African Forestry Journal No. 199, November 2003 1 Guest Editorial

    E-Print Network [OSTI]

    Southern African Forestry Journal ­ No. 199, November 2003 1 Guest Editorial Forest Biotechnology PERSPECTIVE South African forestry companies and foresters have been actively applying biotechnology since of the world leaders in plantation forestry and often times, looked upon with some envy by groups in other

  13. Sustainability Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio-cultural, and Artistic Perspective

    E-Print Network [OSTI]

    Sustainability Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio-cultural, and Artistic Perspective-based biodiesel, which is currently imported by the Unites States. An analysis of this specific interaction

  14. Gravitating discs around black holes

    E-Print Network [OSTI]

    V. Karas; J. -M. Hure; O. Semerak

    2004-01-16T23:59:59.000Z

    Fluid discs and tori around black holes are discussed within different approaches and with the emphasis on the role of disc gravity. First reviewed are the prospects of investigating the gravitational field of a black hole--disc system by analytical solutions of stationary, axially symmetric Einstein's equations. Then, more detailed considerations are focused to middle and outer parts of extended disc-like configurations where relativistic effects are small and the Newtonian description is adequate. Within general relativity, only a static case has been analysed in detail. Results are often very inspiring, however, simplifying assumptions must be imposed: ad hoc profiles of the disc density are commonly assumed and the effects of frame-dragging and completely lacking. Astrophysical discs (e.g. accretion discs in active galactic nuclei) typically extend far beyond the relativistic domain and are fairly diluted. However, self-gravity is still essential for their structure and evolution, as well as for their radiation emission and the impact on the environment around. For example, a nuclear star cluster in a galactic centre may bear various imprints of mutual star--disc interactions, which can be recognised in observational properties, such as the relation between the central mass and stellar velocity dispersion.

  15. Black hole and holographic dark energy

    E-Print Network [OSTI]

    Yun Soo Myung

    2007-04-11T23:59:59.000Z

    We discuss the connection between black hole and holographic dark energy. We examine the issue of the equation of state (EOS) for holographic energy density as a candidate for the dark energy carefully. This is closely related to the EOS for black hole, because the holographic dark energy comes from the black hole energy density. In order to derive the EOS of a black hole, we may use its dual (quantum) systems. Finally, a regular black hole without the singularity is introduced to describe an accelerating universe inside the cosmological horizon. Inspired by this, we show that the holographic energy density with the cosmological horizon as the IR cutoff leads to the dark energy-dominated universe with $\\omega_{\\rm \\Lambda}=-1$.

  16. Quantum Black Hole Model and Hawking's Radiation

    E-Print Network [OSTI]

    V. A. Berezin

    1996-02-12T23:59:59.000Z

    The black hole model with a self-gravitating charged spherical symmetric dust thin shell as a source is considered. The Schroedinger-type equation for such a model is derived. This equation appeared to be a finite differences equation. A theory of such an equation is developed and general solution is found and investigated in details. The discrete spectrum of the bound state energy levels is obtained. All the eigenvalues appeared to be infinitely degenerate. The ground state wave functions are evaluated explicitly. The quantum black hole states are selected and investigated. It is shown that the obtained black hole mass spectrum is compatible with the existence of Hawking's radiation in the limit of low temperatures both for large and nearly extreme Reissner-Nordstrom black holes. The above mentioned infinite degeneracy of the mass (energy) eigenvalues may appeared helpful in resolving the well known information paradox in the black hole physics.

  17. Black Hole Thermodynamics Based on Unitary Evolutions

    E-Print Network [OSTI]

    Feng, Yu-Lei

    2015-01-01T23:59:59.000Z

    In this paper, we try to construct black hole thermodynamics based on the fact that, the formation and evaporation of a black hole can be described by quantum unitary evolutions. First, we show that the Bekenstein-Hawking entropy $S_{BH}$ cannot be a Boltzmann or thermal entropy. To confirm this statement, we show that the original black hole's "first law" cannot be treated as the first law of thermodynamics formally, due to some missing metric perturbations caused by matter. Then, by including those (quantum) metric perturbations, we show that the black hole formation and evaporation can be described in a unitary manner effectively, through a quantum channel between the exterior and interior of the event horizon. In this way, the paradoxes of information loss and firewall can be resolved effectively. Finally, we show that black hole thermodynamics can be constructed in an ordinary way, by constructing statistical mechanics.

  18. Fourier Analysis of the BTZ Black Hole

    E-Print Network [OSTI]

    Ian M. Tolfree

    2009-11-11T23:59:59.000Z

    In this paper we extend our previous work regarding the role of the Fourier transformation in bulk to boundary mappings to include the BTZ black hole. We follow standard procedures for modifying Fourier Transformations to accommodate quotient spaces and arrive at a bulk to boundary mapping in a black hole background. We show that this mapping is consistent with known results and lends a new insight into the AdS/CFT duality. We find that the micro-states corresponding to the entropy of a bulk scalar field are the Fourier coefficients on the boundary, which transform under the principal series representation of $SL(2,R)$. Building upon this we present a toy model to analyze the implications of this for the origin of black hole entropy. We find that the black hole micro-states live on the boundary and correspond to the possible emission modes of the black hole

  19. An electromagnetic black hole made of metamaterials

    E-Print Network [OSTI]

    Cheng, Qiang

    2009-01-01T23:59:59.000Z

    Traditionally, a black hole is a region of space with huge gravitational field in the means of general relativity, which absorbs everything hitting it including the light. In general relativity, the presence of matter-energy densities results in the motion of matter propagating in a curved spacetime1, which is similar to the electromagnetic-wave propagation in a curved space and in an inhomogeneous metamaterial2. Hence one can simulate the black hole using electromagnetic fields and metamaterials. In a recent theoretical work, an optical black hole has been proposed based on metamaterials, in which the numerical simulations showed a highly efficient light absorption3. Here we report the first experimental demonstration of electromagnetic black hole in the microwave frequencies. The proposed black hole is composed of non-resonant and resonant metamaterial structures, which can absorb electromagnetic waves efficiently coming from all directions due to the local control of electromagnetic fields. Hence the elect...

  20. Fermionic greybody factors in dilaton black holes

    E-Print Network [OSTI]

    Jahed Abedi; Hessamaddin Arfaei

    2014-09-17T23:59:59.000Z

    In this paper the question of emission of fermions in the process of dilaton black hole evolution and its characters for different dilaton coupling constants $\\alpha$ is studied. The main quantity of interest, the greybody factors are calculated both numerically and in analytical approximation. The dependence of rates of evaporation and behaviour on the dilaton coupling constant is analyzed. Having calculated the greybody factors we are able to address the question of the final fate of the dilaton black hole. For that we also need to make dynamical treatment of the solution by considering the backreaction which will show a crucial effect on the final result. We find a transition line in $(Q/M, \\alpha)$ plane that separates the two regimes for the fate of the black hole, decay regime and extremal regime. In the decay regime the black hole completely evaporates, while in the extremal regime the black hole approaches the extremal limit by radiation and becomes stable.

  1. Black holes in Asymptotically Safe Gravity

    E-Print Network [OSTI]

    Saueressig, Frank; D'Odorico, Giulio; Vidotto, Francesca

    2015-01-01T23:59:59.000Z

    Black holes are among the most fascinating objects populating our universe. Their characteristic features, encompassing spacetime singularities, event horizons, and black hole thermodynamics, provide a rich testing ground for quantum gravity ideas. In this note we observe that the renormalization group improved Schwarzschild black holes constructed by Bonanno and Reuter within Weinberg's asymptotic safety program constitute a prototypical example of a Hayward geometry used to model non-singular black holes within quantum gravity phenomenology. Moreover, they share many features of a Planck star: their effective geometry naturally incorporates the one-loop corrections found in the effective field theory framework, their Kretschmann scalar is bounded, and the black hole singularity is replaced by a regular de Sitter patch. The role of the cosmological constant in the renormalization group improvement process is briefly discussed.

  2. Economic Impact of the American Clean Energy

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Economic Impact of the American Clean Energy and Security Act of 2009 on the West Virginia Economy ........................................................................................................................ 1 American Clean Energy and Security Act of 2009 at reducing greenhouse gas emissions. This report examines the impact of the American Clean Energy

  3. Leonard Wood and the American Empire

    E-Print Network [OSTI]

    Pruitt, James Herman

    2012-07-16T23:59:59.000Z

    During the ten years following the Spanish American War (1898 to 1908), Major General Leonard Wood served as the primary agent of American imperialism. Wood was not only a proconsul of the new American Empire; he was a symbol of the empire...

  4. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Alireza Rezaie

    2004-10-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  5. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr.; Alireza Rezaie

    2003-12-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  6. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    Robert E. Moore; William L. Headrick; Alireza Rezaie

    2003-03-31T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  7. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick; Musa Karakus; Alireza Rezaie

    2004-03-30T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO2 and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  8. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Alireza Rezaie

    2004-07-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  9. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang

    2005-10-01T23:59:59.000Z

    The University of Missouri-Rolla identified materials that permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project was to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study attempted to define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials were selected/developed that either react with the gasifier environment to form protective surfaces in-situ; and were functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development were divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  10. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr.; Alireza Rezaie

    2004-04-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  11. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Jun Wei

    2005-04-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  12. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang

    2005-07-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  13. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Alireza Rezaie; Xiaoting Liang; Musa Karakus; Jun Wei

    2005-12-01T23:59:59.000Z

    The University of Missouri-Rolla identified materials that permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project was to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study attempted to define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials were selected or developed that reacted with the gasifier environment to form protective surfaces in-situ; and were functionally-graded to give the best combination of thermal, mechanical and physical properties and chemical stability; and are relatively inexpensive, reliable repair materials. Material development was divided into 2 tasks: Task 1 was development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO2 and SiC. Task 2 was finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  14. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Alireza Rezaie

    2003-12-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  15. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Jun Wei

    2005-01-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  16. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Alireza Rezaie

    2003-08-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  17. Narrative Strategies in Black Films: Spike Lee's "She's Gotta Have It"

    E-Print Network [OSTI]

    Bouteba, P.M.

    1989-01-01T23:59:59.000Z

    the African film "Wend Kuuni," Diawara describes the majorstructure and meanings. Diawara states, "Kabore's strategy

  18. Crustal thinning between the Ethiopian and East African Plateaus from modeling Rayleigh wave dispersion

    SciTech Connect (OSTI)

    Benoit, M H; Nyblade, A A; Pasyanos, M E

    2006-01-17T23:59:59.000Z

    The East African and Ethiopian Plateaus have long been recognized to be part of a much larger topographic anomaly on the African Plate called the African Superswell. One of the few places within the African Superswell that exhibit elevations of less than 1 km is southeastern Sudan and northern Kenya, an area containing both Mesozoic and Cenozoic rift basins. Crustal structure and uppermost mantle velocities are investigated in this area by modeling Rayleigh wave dispersion. Modeling results indicate an average crustal thickness of 25 {+-} 5 km, some 10-15 km thinner than the crust beneath the adjacent East African and Ethiopian Plateaus. The low elevations can therefore be readily attributed to an isostatic response from crustal thinning. Low Sn velocities of 4.1-4.3 km/s also characterize this region.

  19. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Laing

    2005-10-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. This report covers Task 1.4, Industrial Trial of candidate materials developed by refractory producers and in the laboratory based on the results of Task 1.1, 1.2 and 1.3. Refractories provided by in-kind sponsors to industrial installations tested by cup testing, density/porosity determinations, chemical analysis and microscopy. None of the materials produced in this program have been tried in high temperature gasifiers, but the mortar developed Morcocoat SP-P is outperforming other mortars tested at ORNL. MORCO PhosGun M-90-O has shown in laboratory testing to be an acceptable candidate for hot and cold repairs of existing high temperature gasifiers. It may prove to be an acceptable lining material.

  20. September 2010 American Recovery and

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    September 2010 i American Recovery and Reinvestment Act (ARRA) FEMP Technical Assistance U.S. Naval by applying GSHP systems. The current HVAC system for the building is a conventional Air Handling Unit (AHU) system with chiller. The heating and the DHW are provided by district steam. The building is close

  1. North American Cross-Border

    E-Print Network [OSTI]

    sourced steam coal burnt in power plants in the northeastern portion of the United States. As coal mining of electrical power from Canada appears to have little impact on the production of steam coal in VirginiaNorth American Cross-Border Electricity Trade Ian M. Loomis Virginia Center for Coal and Energy

  2. Interest grows in African oil and gas opportunities

    SciTech Connect (OSTI)

    Knott, D.

    1997-05-12T23:59:59.000Z

    As African countries continue a slow drift towards democratic government and market economics, the continent is increasingly attractive to international oil and gas companies. Though Africa remains politically diverse, and its volatile politics remains a major barrier to petroleum companies, a number of recent developments reflect its growing significance for the industry. Among recent projects and events reflecting changes in Africa: oil and gas exporter Algeria has invited foreign oil companies to help develop major gas discoveries, with a view to boosting exports to Europe; oil and gas producer Egypt invited foreign companies to explore in the Nile Delta region, and the result appears to be a flowering world scale gas play; west African offshore exploration has entered deep water and new areas, and a number of major projects are expected in years to come; Nigeria`s reputation as a difficult place to operate has been justified by recent political and civil events, but a long-planned liquefied natural gas (LNG) export plant is being built there; South Africa, which has returned to the international scene after years of trade isolation because of apartheid, is emerging as a potential driver for energy industry schemes throughout the continent. Activities are discussed.

  3. QER- Comment of American Water

    Broader source: Energy.gov [DOE]

    Dear QER Team; Thank you for the opportunity to provide comments to the Quadrennial Energy Review Task Force to discuss the water and energy nexus, advances in water innovative technologies, and the impact of climate change on water issues. On behalf of American Water, I wish to submit the following White Papers which we have prepared on these critical issues: Innovations in Energy Use Sustainability and Resiliency Planning for Water Utilities One Water Water/Energy Correlation The Value of Water Challenges in the Water Industry: Climate Change Challenges in the Water Industry: Meeting Demand in the West Innovation Solutions Within the Water Industry: Desalination Innovation Solutions Within the Water Industry: Going Green Innovation Solutions Within the Water Industry: Water Reuse Bridging the Water Innovation Gap. Founded in 1886, American Water is the largest publicly traded U.S. water and wastewater utility company. With headquarters in Voorhees, NJ, the company employs approximately 6,600 dedicated professionals who provide drinking water, wastewater and other related services to an estimated 14 million people in more than 40 states. Please feel free to contact me if you have any questions or if there is any way American Water can be helpful to your mission. Respectfully Yours, Martin (See attached file: White Papers.pdf) Martin D. Kerckhoff Vice President and Divisional General Counsel Central Division American Water CONFIDENTIAL & PRIVILEGED COMMUNICATION This email and any attachments hereto constitute a legally confidential communication from the Legal Department of American Water. The information contained herein is subject to attorney-client privilege and is for the sole use of the intended original addressee. If you are not the intended original addressee, you are hereby notified that any reading, disclosure, copying, distribution, use, or taking of any action in reliance on the contents contained herein is strictly prohibited. If you have received this message in error, please immediately notify us at 314.966.2241 and delete this message from your system. WARNING: Although American Water has taken reasonable precautions to ensure that no viruses are present in this email, it is the responsibility of the recipient to ensure that it is virus free. No responsibility is accepted by American Water for any loss or damage arising in any way from the receipt and/or use of this email.

  4. Gravitational waves versus black holes

    E-Print Network [OSTI]

    Trevor W. Marshall

    2007-07-02T23:59:59.000Z

    It is argued that, in order for the gravitational field to be propagated as a wave, it is necessary for it to satisfy a further set of field equations, in addition to those of Einstein and Hilbert, and these equations mean there is a preferred coordinate frame, called the Global Inertial Frame, giving rise to a unique metric . The implication is that a true gravitational field is not compatible with Einstein's Principle of Equivalence, which is in contradiction with his other fundamental concept of locality. The additional field equations ensure that gravitational collapse does not go below the Schwarzschild radius, thereby excluding the possibility of singular solutions (black holes) of the Einstein-Hilbert equations. Such solutions would also violate Einstein's locality principle.

  5. Petrology and hydrocarbon reservoir potential of subsurface Pottsville (Pennsylvanian) sandstones, Black Warrior basin, Mississippi

    SciTech Connect (OSTI)

    Beard, R.H.; Maylan, M.A.

    1987-09-01T23:59:59.000Z

    The Black Warrior basin of Mississippi and Alabama is a Paleozoic foreland basin developed between the North American craton and the Appalachian and Ouachita orogenic belts. The basin fill consists of a middle Mississippian to Lower Pennsylvanian clastic wedge, transitional in character, between Appalachian molasse and Ouachita flysch. Pottsville (Pennsylvanian) sandstones, shales, coals, and thin conglomerates make up the greater part of the wedge, thickening to 11,000 ft in northeast Mississippi. Although the outcropping and near-surface Pottsville is economically importance as a source of coal in Alabama, only minor amounts of gas have been derived from the subsurface Pottsville of Mississippi (Clay and Monroe Counties). Production from the Black Warrior basin, mostly gas, is chiefly from Chesterian (Mississippian) sands and limestones in the shallower part of the basin, principally in Monroe County. Cores of Pottsville sandstones from four wells in the deeper part of the Black Warrior basin (Calhoun and Choctaw Counties) have been examined to determine their petrography, diagenetic history, and reservoir quality. This part of the basin is relatively unexplored, and the primary objective of the study was to determine if suitable hydrocarbon reservoirs are present.

  6. Morphology of PolyethyleneCarbon Black Composites G. BEAUCAGE,1

    E-Print Network [OSTI]

    Beaucage, Gregory

    Morphology of Polyethylene­Carbon Black Composites G. BEAUCAGE,1 S. RANE,1 D. W. SCHAEFER,1 G. LONG-ray scattering (SAXS) study of a conductive grade of carbon black and carbon black­polymer composites(methyl methacrylate); carbon black; filler; composite; conductivity; percolation INTRODUCTION The morphology

  7. Thermodynamics of Dyonic Lifshitz Black Holes

    E-Print Network [OSTI]

    Tobias Zingg

    2011-07-15T23:59:59.000Z

    Black holes with asymptotic anisotropic scaling are conjectured to be gravity duals of condensed matter system close to quantum critical points with non-trivial dynamical exponent z at finite temperature. A holographic renormalization procedure is presented that allows thermodynamic potentials to be defined for objects with both electric and magnetic charge in such a way that standard thermodynamic relations hold. Black holes in asymptotic Lifshitz spacetimes can exhibit paramagnetic behavior at low temperature limit for certain values of the critical exponent z, whereas the behavior of AdS black holes is always diamagnetic.

  8. Some remarks on black hole thermodynamics

    E-Print Network [OSTI]

    R. Y. Chiao

    2011-02-04T23:59:59.000Z

    Two thermodynamic "paradoxes" of black hole physics are re-examined. The first is that there is a thermal instability involving two coupled blackbody cavities containing two black holes, and second is that a classical black hole can swallow up entropy in the form of ambient blackbody photons without increasing its mass. The resolution of the second paradox by Bekenstein and by Hawking is re-visited. The link between Hawking radiation and Wigner's superluminal tunneling time is discussed using two equivalent Feynman diagrams, and Feynman's re-interpretation principle.

  9. Black hole hair in higher dimensions

    E-Print Network [OSTI]

    Chao Cao; Yi-Xin Chen; Jian-Long Li

    2008-04-02T23:59:59.000Z

    We study the property of matter in equilibrium with a static, spherically symmetric black hole in D-dimensional spacetime. It requires this kind of matter has an equation of state (\\omega\\equiv p_r/\\rho=-1/(1+2kn), k,n\\in \\mathbb{N}), which seems to be independent of D. However, when we associate this with specific models, some interesting limits on space could be found: (i)(D=2+2kn) while the black hole is surrounded by cosmic strings; (ii)the black hole can be surrounded by linear dilaton field only in 4-dimensional spacetime. In both cases, D=4 is special.

  10. Thermodynamics of Schwarzschild-de Sitter black hole: thermal stability of Nariai black hole

    E-Print Network [OSTI]

    Yun Soo Myung

    2008-03-28T23:59:59.000Z

    We study thermodynamics of the Schwarzschild-de Sitter black hole in five dimensions by introducing two temperatures based on the standard and Bousso-Hawking normalizations. We use the first-law of thermodynamics to derive thermodynamic quantities. The two temperatures indicate that the Nariai black hole is thermodynamically unstable. However, it seems that black hole thermodynamics favors the standard normalization, and does not favor the Bousso-Hawking normalization.

  11. Multipole moments for black objects in five dimensions

    E-Print Network [OSTI]

    Kentaro Tanabe; Seiju Ohashi; Tetsuya Shiromizu

    2010-11-19T23:59:59.000Z

    In higher dimensions than four, conventional uniqueness theorem in asymptotically flat space-times does not hold, i.e., black objects can not be classified only by the mass, angular momentum and charge. In this paper, we define multipole moments for black objects and show that Myers-Perry black hole and black ring can be distinguished by quadrupole moments. This consideration gives us a new insight for the uniqueness theorem for black objects in higher dimensions.

  12. Thermodynamics and evaporation of the noncommutative black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Yong-Wan Kim; Young-Jai Park

    2007-01-21T23:59:59.000Z

    We investigate the thermodynamics of the noncommutative black hole whose static picture is similar to that of the nonsingular black hole known as the de Sitter-Schwarzschild black hole. It turns out that the final remnant of extremal black hole is a thermodynamically stable object. We describe the evaporation process of this black hole by using the noncommutativity-corrected Vaidya metric. It is found that there exists a close relationship between thermodynamic approach and evaporation process.

  13. Spacetime noncommutative effect on black hole as particle accelerators

    E-Print Network [OSTI]

    Chikun Ding; Changqing Liu; Qian Guo

    2013-01-08T23:59:59.000Z

    We study the spacetime noncommutative effect on black hole as particle accelerators and, find that particle falling from infinity with zero velocity cannot collide with unbound energy when the noncommutative Kerr black hole is exactly extremal. Our results also show that the bigger of the spinning black hole's mass is, the higher of center of mass energy that the particles obtain. For small and medium noncommutative Schwarzschild black hole, the collision energy depends on the black holes' mass.

  14. Gibson Grove A.M.E. Zion Church Gone But Not Forgotten: The Archaeology of an African American Church

    E-Print Network [OSTI]

    Jones, Alexandra

    2010-01-01T23:59:59.000Z

    employees of the David Taylor Model Basin. The Africanworkers at the David Taylor Model Basin. The property was

  15. Our Relationship, My Academia: Historical and Hegemonic Implications Imbuing Academically Successful African American Women from Single-mothered Families

    E-Print Network [OSTI]

    Johnson, Johnitha Watkins

    2013-12-04T23:59:59.000Z

    ....................................................................................................... 87 Savannah’s Narrative ............................................................................................... 91 Analysis of Data ....................................................................................................... 95.... Damning the family a “matriarchy” (p. 30), Moynihan’s The Negro Family: The Case for National Action fueled the charred minds of national constituents concerned with the Negro woman’s familial position and alleged dominance. Having deemed the family...

  16. Killing me softly: a meta-analysis examining risk factors associated with suicide among young African American males

    E-Print Network [OSTI]

    Lemon, Dedra Deann

    2009-05-15T23:59:59.000Z

    , I know that you are doing it because you are proud of me and you share my emotions. So please know that each time I achieve something you are achieving it as well. To my nieces and nephews, Ashley, Viontre, Caleb, D.J., Tiana, and Cayden... .......................................................... 2 Problem Statement ............................................................. 3 Significance of the Problem ............................................... 4 Research Questions...

  17. Excerpt from Negro Comrades of the Crown: African Americans and the British Empire Fight the U.S. before Emancipation

    E-Print Network [OSTI]

    Horne, Gerald

    2012-01-01T23:59:59.000Z

    thousands of U.S. Negroes to Hispaniola—which is pre- ciselybe a lake of London. Adding Hispaniola to this mix was notNegro Fort,” that of Hispaniola. Nevertheless, Hispaniola

  18. Gibson Grove A.M.E. Zion Church Gone But Not Forgotten: The Archaeology of an African American Church

    E-Print Network [OSTI]

    Jones, Alexandra

    2010-01-01T23:59:59.000Z

    Glass, bottle 5 wire 1 BRW glass bottle cap 2 whole cap pipeComments 4 Nail, wire 5 Glass, bottle 1 Nail, wrought 24 Nail, wire 1 roof tack 5 Glass, bottle 1 crystal 1 Stone

  19. Principal Investigator: Ezemenari M. Obasi, obasi@uga.edu Title: Stress and Drug Use Vulnerability in Rural African Americans

    E-Print Network [OSTI]

    Scott, Robert A.

    to drug addiction, from personality traits, personal history and genetic disposition, to environmental, and drug use history. Potential Impact for Schools in Georgia and the Nation: The study will ultimately: whether one's genetic makeup interacts with environmental variables to affect physiological responses

  20. Improving spelling ability among speakers of African American vernacular English: an intervention based on phonological, morphological, and orthographic principles

    E-Print Network [OSTI]

    Pittman, Ramona Trinette

    2009-05-15T23:59:59.000Z

    OF PHILOSOPHY Approved by: Chair of Committee, R. Malatesha Joshi Committee Members, Sharolyn Pollard-Durodola John Helfeldt Blanca Quiroz Bruce Thompson Head of Department, Dennie Smith August 2007 Major Subject: Curriculum...

  1. The effects of neighborhood environments on the level of physical activity among older african american women in Texas

    E-Print Network [OSTI]

    Shin, Woo Hwa

    2009-05-15T23:59:59.000Z

    , that provide social identity, support, and role definition Institutional Factors Rules, regulations, policies, and informal structures, which may constrain or promote recommended behaviors Community Factors Social networks and norms, or standards, which... courts, or bowling greens. (Booth et al., 2000) Older women who perceived that biking or walking trails, or parks located within 20 minute-walking distance from their homes showed significantly higher levels of pedometer walking records than those who...

  2. The Salience of Racial Isolation: African Americans' and Latinos' Perceptions of Climate and Enrollment Choices With and Without Prop 209

    E-Print Network [OSTI]

    Kidder, William C.

    2012-01-01T23:59:59.000Z

    affirmative   action,   private   selective   enrollment  selective  privates  with  affirmative  action  at  higher  selective  privates  with  affirmative  action)  before  

  3. Excerpt from Negro Comrades of the Crown: African Americans and the British Empire Fight the U.S. before Emancipation

    E-Print Network [OSTI]

    Horne, Gerald

    2012-01-01T23:59:59.000Z

    many of his compatriots in Haiti. Clarkson sug- gested thatI should greatly prefer Haiti to Africa. ” But he remainedhimself as an “agent” of Haiti. “O happy England! ” he

  4. Examining the Perceptions of Urban African American Elementary Teachers: The Implementation of Culturally Responsive Materials Into the Classroom

    E-Print Network [OSTI]

    Hicks, Johnetta

    2012-02-14T23:59:59.000Z

    and Instruction In a culturally responsive classroom, the curriculum forms the basis for the implementation of effective teaching and learning (Koppelman & Goodhart, 2005, 2008; Pang, 2005). Gay (2000) identified curriculum content as paramount...

  5. African American Students in a Middle Income, Urban School District: Five Successful Secondary Teachers’ Beliefs and Practices

    E-Print Network [OSTI]

    Williams Jefferson, Rhonique Lia

    2013-12-03T23:59:59.000Z

    . Teachers must convey their disapproval of wrongful acts while reinforcing the fact that they believe in the potential of the student to become someone successful in life. Pang (2006) maintains that caring-centered teachers act as a response...

  6. The early American motion picture industry: promoting American cultural hegemony

    E-Print Network [OSTI]

    Wier, Theresa Joanne

    1994-01-01T23:59:59.000Z

    : CULTURAL IMPERIALISM? Introduction Film as imperialism? Technology Cultural Imperialism Economic Trends Conclusion 67 67 69 72 74 79 81 Vl THE ADVENT OF SOUND 85 Introduction Europe Conclusion 85 95 99 VII CONCLUDING COMMENTS 100... classical imperialism to a new category of international exportation founded on the products of the second industrial revolution: steel, the internal combusion [sic] engine and electricity ? including motion pictures" (1980, 81). However, American...

  7. Towards Black Hole Entropy in Shape Dynamics

    E-Print Network [OSTI]

    Gabriel Herczeg; Vasudev Shyam

    2014-10-21T23:59:59.000Z

    Shape dynamics is classical theory of gravity which agrees with general relativity in many important cases, but possesses different gauge symmetries and constraints. Rather than spacetime diffeomorphism invariance, shape dynamics takes spatial diffeomorphism invariance and spatial Weyl invariance as the fundamental gauge symmetries associated with the gravitational field. Since the area of the event horizon of a black hole transforms under a generic spatial Weyl transformation, there has been some doubt that one can speak sensibly about the thermodynamics of black holes in shape dynamics. The purpose of this paper is to show that by treating the event horizon of a black hole as an interior boundary, one can recover familiar notions of black hole thermodynamics in shape dynamics and define a gauge invariant entropy that agrees with general relativity.

  8. Multipole moments of bumpy black holes

    E-Print Network [OSTI]

    Vigeland, Sarah Jane

    General relativity predicts the existence of black holes, compact objects whose spacetimes depend only on their mass, spin, and charge in vacuum (the “no-hair” theorem). As various observations probe deeper into the strong ...

  9. Energy of 4-Dimensional Black Hole, etc

    E-Print Network [OSTI]

    Dmitriy Palatnik

    2011-07-18T23:59:59.000Z

    In this letter I suggest possible redefinition of mass density, not depending on speed of the mass element, which leads to a more simple stress-energy for an object. I calculate energy of black hole.

  10. Black Hills Energy- Solar Power Program

    Broader source: Energy.gov [DOE]

    All incentive payments are subject to the availability of funds and a pre-installation site inspection. Black Hills Energy has established participation caps for each tier. The status of funding ...

  11. Horizon Operator Approach to Black Hole Quantization

    E-Print Network [OSTI]

    G. 't Hooft

    1994-02-21T23:59:59.000Z

    The $S$-matrix Ansatz for the construction of a quantum theory of black holes is further exploited. We first note that treating the metric tensor $g_{\\m\

  12. Topological Black Holes -- Outside Looking In

    E-Print Network [OSTI]

    R. B. Mann

    1997-09-15T23:59:59.000Z

    I describe the general mathematical construction and physical picture of topological black holes, which are black holes whose event horizons are surfaces of non-trivial topology. The construction is carried out in an arbitrary number of dimensions, and includes all known special cases which have appeared before in the literature. I describe the basic features of massive charged topological black holes in $(3+1)$ dimensions, from both an exterior and interior point of view. To investigate their interiors, it is necessary to understand the radiative falloff behaviour of a given massless field at late times in the background of a topological black hole. I describe the results of a numerical investigation of such behaviour for a conformally coupled scalar field. Significant differences emerge between spherical and higher genus topologies.

  13. Spacetime constraints on accreting black holes

    SciTech Connect (OSTI)

    Garofalo, David [Jet Propulsion Laboratory, California Institute of Technology, Pasadena California 91109 (United States)

    2009-06-15T23:59:59.000Z

    We study the spin dependence of accretion onto rotating Kerr black holes using analytic techniques. In its linear regime, angular momentum transport in MHD turbulent accretion flow involves the generation of radial magnetic field connecting plasma in a differentially rotating flow. We take a first principles approach, highlighting the constraint that limits the generation and amplification of radial magnetic fields, stemming from the transfer of energy from mechanical to magnetic form. Because the energy transferred in magnetic form is ultimately constrained by gravitational potential energy or Killing energy, the spin dependence of the latter allows us to derive spin-dependent constraints on the success of the accreting plasma to expel its angular momentum. We find an inverse relationship between this ability and black hole spin. If this radial magnetic field generation forms the basis for angular momentum transfer in accretion flows, accretion rates involving Kerr black holes are expected to be lower as the black hole spin increases in the prograde sense.

  14. Scattering map for two black holes

    E-Print Network [OSTI]

    Alessandro P. S. de Moura; Patricio S. Letelier

    1999-10-25T23:59:59.000Z

    We study the motion of light in the gravitational field of two Schwarzschild black holes, making the approximation that they are far apart, so that the motion of light rays in the neighborhood of one black hole can be considered to be the result of the action of each black hole separately. Using this approximation, the dynamics is reduced to a 2-dimensional map, which we study both numerically and analytically. The map is found to be chaotic, with a fractal basin boundary separating the possible outcomes of the orbits (escape or falling into one of the black holes). In the limit of large separation distances, the basin boundary becomes a self-similar Cantor set, and we find that the box-counting dimension decays slowly with the separation distance, following a logarithmic decay law.

  15. Black hole evolution: I. Supernova-regulated black hole growth

    E-Print Network [OSTI]

    Dubois, Yohan; Silk, Joseph; Devriendt, Julien; Slyz, Adrianne; Teyssier, Romain

    2015-01-01T23:59:59.000Z

    The growth of a supermassive black hole (BH) is determined by how much gas the host galaxy is able to feed it, which in turn is controlled by the cosmic environment, through galaxy mergers and accretion of cosmic flows that time how galaxies obtain their gas, but also by internal processes in the galaxy, such as star formation and feedback from stars and the BH itself. In this paper, we study the growth of a 10^12 Msun halo at z=2, which is the progenitor of an archetypical group of galaxies at z=0, and of its central BH by means of a high-resolution zoomed cosmological simulation, the Seth simulation. We study the evolution of the BH driven by the accretion of cold gas in the galaxy, and explore the efficiency of the feedback from supernovae (SNe). For a relatively inefficient energy input from SNe, the BH grows at the Eddington rate from early times, and reaches self-regulation once it is massive enough. We find that at early cosmic times z>3.5, efficient feedback from SNe forbids the formation of a settled...

  16. Charged Cylindrical Black Holes in Conformal Gravity

    E-Print Network [OSTI]

    Jackson Levi Said; Joseph Sultana; Kristian Zarb Adami

    2013-01-04T23:59:59.000Z

    Considering cylindrical topology we present the static solution for a charged black hole in conformal gravity. We show that unlike the general relativistic case there are two different solutions, both including a factor that when set to zero recovers the familiar static charged black string solution in Einstein's theory. This factor gives rise to a linear term in the potential that also features in the neutral case and may have significant ramifications for particle trajectories.

  17. Comment on "Black holes constrain varying constants"

    E-Print Network [OSTI]

    V. V. Flambaum

    2002-08-20T23:59:59.000Z

    A recent paper [DDL] claims that the increase of the proton electric charge e leads to a (forbidden) decrease of black hole entropy, therefore, possible evidence for variation of $\\alpha=e^2/\\hbar c$ [alpha] must be interpreted as a decrease of the speed of light. We argue that purely theoretical consideration of black holes possibly cannot give any model-independent limitations on variation of fundamental constants.

  18. Fractionated Branes and Black Hole Interiors

    E-Print Network [OSTI]

    Martinec, Emil J

    2015-01-01T23:59:59.000Z

    Combining a variety of results in string theory and general relativity, a picture of the black hole interior is developed wherein spacetime caps off at an inner horizon, and the inter-horizon region is occupied by a Hagedorn gas of a very low tension state of fractionated branes. This picture leads to natural resolutions of a variety of puzzles concerning quantum black holes. Gravity Research Foundation 2015 Fourth Prize Award for Essays on Gravitation.

  19. Fractionated Branes and Black Hole Interiors

    E-Print Network [OSTI]

    Emil J. Martinec

    2015-05-20T23:59:59.000Z

    Combining a variety of results in string theory and general relativity, a picture of the black hole interior is developed wherein spacetime caps off at an inner horizon, and the inter-horizon region is occupied by a Hagedorn gas of a very low tension state of fractionated branes. This picture leads to natural resolutions of a variety of puzzles concerning quantum black holes. Gravity Research Foundation 2015 Fourth Prize Award for Essays on Gravitation.

  20. Local temperature for dynamical black holes

    E-Print Network [OSTI]

    Sean A. Hayward; R. Di Criscienzo; M. Nadalini; L. Vanzo; S. Zerbini

    2008-12-13T23:59:59.000Z

    A local Hawking temperature was recently derived for any future outer trapping horizon in spherical symmetry, using a Hamilton-Jacobi tunneling method, and is given by a dynamical surface gravity as defined geometrically. Descriptions are given of the operational meaning of the temperature, in terms of what observers measure, and its relation to the usual Hawking temperature for static black holes. Implications for the final fate of an evaporating black hole are discussed.

  1. Notes on Black Hole Fluctuations and Backreaction

    E-Print Network [OSTI]

    B. L. Hu; Alpan Raval; Sukanya Sinha

    1999-01-05T23:59:59.000Z

    In these notes we prepare the ground for a systematic investigation into the issues of black hole fluctuations and backreaction by discussing the formulation of the problem, commenting on possible advantages and shortcomings of existing works, and introducing our own approach via a stochastic semiclassical theory of gravity based on the Einstein-Langevin equation and the fluctuation-dissipation relation for a self-consistent description of metric fluctuations and dissipative dynamics of the black hole with backreaction of its Hawking radiance.

  2. Black liquor gasifier/gas turbine cogeneration

    SciTech Connect (OSTI)

    Consonni, S. [Politecnico di Milano (Italy). Dept. di Energetica; Larson, E.D.; Keutz, T.G. [Princeton Univ., NJ (United States); Berglin, N. [Chalmers Univ. of Technology, Goteborg (Sweden). Dept. of Heat and Power Technology

    1998-07-01T23:59:59.000Z

    The kraft process dominates pulp and paper production worldwide. Black liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, black liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the black liquor generation rate is about 85,000 MW{sub fuel} (or 0.5 million tonnes of dry solids per day), with nearly 50% of this in North America. The majority of presently installed Tomlinson boilers will reach the end of their useful lives during the next 5 to 20 years. As a replacement for Tomlinson-based cogeneration, black liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of black liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different black liquor gasifiers modeled on proposed commercial designs.

  3. Asymptotically Lifshitz brane-world black holes

    SciTech Connect (OSTI)

    Ranjbar, Arash, E-mail: a_ranjbar@sbu.ac.ir; Sepangi, Hamid Reza, E-mail: hr-sepangi@sbu.ac.ir; Shahidi, Shahab, E-mail: s_shahidi@sbu.ac.ir

    2012-12-15T23:59:59.000Z

    We study the gravity dual of a Lifshitz field theory in the context of a RSII brane-world scenario, taking into account the effects of the extra dimension through the contribution of the electric part of the Weyl tensor. We study the thermodynamical behavior of such asymptotically Lifshitz black holes. It is shown that the entropy imposes the critical exponent z to be bounded from above. This maximum value of z corresponds to a positive infinite entropy as long as the temperature is kept positive. The stability and phase transition for different spatial topologies are also discussed. - Highlights: Black-Right-Pointing-Pointer Studying the gravity dual of a Lifshitz field theory in the context of brane-world scenario. Black-Right-Pointing-Pointer Studying the thermodynamical behavior of asymptotically Lifshitz black holes. Black-Right-Pointing-Pointer Showing that the entropy imposes the critical exponent z to be bounded from above. Black-Right-Pointing-Pointer Discussing the phase transition for different spatial topologies.

  4. THERMAL DEGRADATION OF A BLACK CHROME SOLAR SELECTIVE ABSORBER COATING: SHORT TERM

    E-Print Network [OSTI]

    Lampert, Carl M.

    2011-01-01T23:59:59.000Z

    black show appreciable degradation ically or mechanically upGA, May ety THERMAL DEGRADATION A BLACK CHROME SOLARis ion, Ext. 781 THERMAL DEGRADATION OF A BLACK CHROME SOLAR

  5. Cold War love : producing American liberalism in interracial marriages between American soldiers and Japanese women

    E-Print Network [OSTI]

    Tsuchiya, Tomoko

    2011-01-01T23:59:59.000Z

    Justice: Americanization of Japanese War Crimes at the Endof the Post-Cold War. ” Journal of Asian American Studies256. Berry, Nicholas O. War and the Red Cross: The Unspoken

  6. (Re) framing the nation : the Afro -Cuban challenge to Black and Latino struggles for American identity

    E-Print Network [OSTI]

    Gosin, Monika

    2009-01-01T23:59:59.000Z

    1, 1994, Race at heart of Cuba crisis, Miami Times, p. A4.is at the heart of Cuba’s crisis. ” This also translates

  7. Berries Bittersweet: Visual Representations of Black Female Sexuality in Contemporary American Pornography

    E-Print Network [OSTI]

    Cruz, Ariane Renee

    2010-01-01T23:59:59.000Z

    concludes with a discussion of porno chic, a golden age termrejected and accepted. Porno-comic: Tijuana Bibles and theconcludes with a discussion of porno chic, a golden age term

  8. Berries Bittersweet: Visual Representations of Black Female Sexuality in Contemporary American Pornography

    E-Print Network [OSTI]

    Cruz, Ariane Renee

    2010-01-01T23:59:59.000Z

    are flashed a gratuitous boob shot as she strips from herin front of the camera. This boob shot, the first of many

  9. Berries Bittersweet: Visual Representations of Black Female Sexuality in Contemporary American Pornography

    E-Print Network [OSTI]

    Cruz, Ariane Renee

    2010-01-01T23:59:59.000Z

    Smith, Seth. The Big Book of Porn: A Penetrating Look at theUncensored Oral History of the Porn Film Industry. New York:Press, 1993. Alice Walker, “Porn” in You Can’t Keep a Good

  10. American black bear habitat selection in northern lower peninsula, Michigan, USA, using discrete-choice modeling

    E-Print Network [OSTI]

    Brown, Daniel G.

    data better than others; both indicated that locations of bears were negatively associated with water bear harvests, sightings, and nuisance reports. Policy makers and wildlife managers can prepare 1991­2000 for 20 males and 35 females. We developed Bayesian random effects discrete-choice models

  11. American black bear habitat selection in northern Lower Peninsula, Michigan, USA, using discrete-choice modeling

    E-Print Network [OSTI]

    data better than others; both indicated that locations of bears were negatively associated with water bear harvests, sightings, and nuisance reports. Policy makers and wildlife managers can prepare 1991­2000 for 20 males and 35 females. We developed Bayesian random effects discrete-choice models

  12. Berries Bittersweet: Visual Representations of Black Female Sexuality in Contemporary American Pornography

    E-Print Network [OSTI]

    Cruz, Ariane Renee

    2010-01-01T23:59:59.000Z

    and far-improved cinematography. In a 2001 interview forand much-improved cinematography, sold a classier version of

  13. Berries Bittersweet: Visual Representations of Black Female Sexuality in Contemporary American Pornography

    E-Print Network [OSTI]

    Cruz, Ariane Renee

    2010-01-01T23:59:59.000Z

    moving image porn featuring gay male anal penetration usings Anal Show (1-5). Renowned originator of gonzo porn, John

  14. (Re) framing the nation : the Afro -Cuban challenge to Black and Latino struggles for American identity

    E-Print Network [OSTI]

    Gosin, Monika

    2009-01-01T23:59:59.000Z

    Girard, Philippe. (2004). Clinton in Haiti: The 1994 U.S.Invasion of Haiti. Gordonsville, VA: Palgrave Macmillan.nation in the world, Haiti has been a powerful symbol of

  15. Improving the Simulation of the West African Monsoon Using the MIT Regional Climate Model

    E-Print Network [OSTI]

    Im, Eun-Soon

    This paper presents an evaluation of the performance of the Massachusetts Institute of Technology (MIT) regional climate model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ...

  16. A new species of the allodapine bee genus Braunsapis from the Central African Republic (Hymenoptera: Apidae)

    E-Print Network [OSTI]

    Engel, Michael S.

    2013-10-29T23:59:59.000Z

    A new species of the allodapine bee genus Braunsapis Michener (Allodapini: Allodapina) is described and figured from a series of females collected in the Central African Republic. Braunsapis maxschwarzi Engel, new species, ...

  17. african clade-a gp160: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  18. acutely sivagm-infected african: Topics by E-print Network

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

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  19. The Flight Physiology of Reproductives of Africanized, European, and Hybrid Honeybees (Apis mellifera)

    E-Print Network [OSTI]

    Harrison, Jon F.; Taylor, Orley R.

    2005-02-25T23:59:59.000Z

    Neotropical African honeybees (Apis mellifera scutellata), in the process of spreading throughout tropical and subtropical regions of the Americas, hybridize with and mostly replace European honeybees (primarily Apis mellifera mellifera and Apis...

  20. Multipack dynamics and the Allee effect in the African wild dog, Lycaon pictus

    E-Print Network [OSTI]

    Courchamp, Franck

    The African wild dog, (Lycaon pictus), also called the painted hunting dog (Rasmussen, 1999), is one Street, Cambridge CB2 3EJ, UK (Received 12 November 1999; accepted 25 April 2000) Abstract The current

  1. Commentary on the Kenya Constitution (consolidation of 15 articles in the East African Standard)

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Commentary on the Kenya Constitution (consolidation of 15 articles in the East African Standard) I in Kenya's history that the people will participate in a referendum. This is to be welcomed. A referendum

  2. Structure of an African city : study of Ibadan, Nigeria : city structure and morphology

    E-Print Network [OSTI]

    Murphy, Stephan L. (Stephan Lane), 1971-

    1998-01-01T23:59:59.000Z

    The study of Ibadan, Nigeria was conducted to analyze how Colonization has altered, or not altered the structure of the traditional African city form of this Yoruba town. The study encompasses structural city form elements ...

  3. 30 January 2012 China puts space-age seal on African role

    E-Print Network [OSTI]

    and Libya. But Europeans, who contribute the largest part of AU project finance, appeared comprehensively in Ivory Coast and the Nato-backed rebellion in Libya split the continent, neither the South African

  4. Application of NIRS fecal profiling and geostatistics to predict diet quality of African livestock

    E-Print Network [OSTI]

    Awuma, Kosi Semebia

    2005-02-17T23:59:59.000Z

    Near infrared reflectance spectroscopy (NIRS) and geostatistical techniques were used to predict diet quality of sub-Saharan African (SSA) livestock, and to create cokriged estimated diet quality maps for cattle across a landscape. Rations of native...

  5. E-Print Network 3.0 - african cichlid radiations Sample Search...

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

    search results for: african cichlid radiations Page: << < 1 2 3 4 5 > >> 1 Cichlid genomics and phenotypic diversity in a comparative context C. Darrin Hulsey1, Summary: in the...

  6. Model, proxy and isotopic perspectives on the East African Humid Period Jessica E. Tierney a,

    E-Print Network [OSTI]

    , , Sophie C. Lewis b , Benjamin I. Cook a,c , Allegra N. LeGrande c , Gavin A. Schmidt c a Lamont of the AHP is fairly well understood: increased solar insolation in the North African subtropics during

  7. Copyright American Museum of Natural History 2012 ISSN 0003-0082 AMERICAN MUSEUM NOVITATES

    E-Print Network [OSTI]

    Richner, Heinz

    Copyright © American Museum of Natural History 2012 ISSN 0003-0082 AMERICAN MUSEUM NOVITATES NumberDivision of Invertebrate Zoology, American Museum of Natural History; 2Museu Paraense Emílio Goeldi, Belém University, Washington, DC; 5Queensland Museum, Brisbane, Australia; 6Koninklijk Belgisch Insti- tuut voor

  8. Center for Latin American, Caribbean & Latino Studies Center for Latin American,

    E-Print Network [OSTI]

    Rosen, Jay

    CLACLS Center for Latin American, Caribbean & Latino Studies Center for Latin American, Caribbean Psychology Ph.D. Program Quantitative Research Associate Center for Latin American, Caribbean & Latino, Caribbean and Latino Studies is a research institute that works for the advancement of the study of Latin

  9. Center for Latin American, Caribbean & Latino Studies Center for Latin American,

    E-Print Network [OSTI]

    Rosen, Jay

    CLACLS Center for Latin American, Caribbean & Latino Studies Center for Latin American, Caribbean - Report 56 - January 2014 #12;The Center for Latin American, Caribbean and Latino Studies is a research institute that works for the advancement of the study of Latin America, the Caribbean, and Latinos

  10. Sandia National Laboratories: American Institute of Aeronautics...

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

    Institute of Aeronautics and Astronautics Two Sandia Leaders Elected American Association for the Advancement of Science Fellows On December 15, 2014, in Climate, Energy,...

  11. 2005 American Conference on Theoretical Chemistry

    SciTech Connect (OSTI)

    Carter, Emily A

    2006-11-19T23:59:59.000Z

    The materials uploaded are meant to serve as final report on the funds provided by DOE-BES to help sponsor the 2005 American Conference on Theoretical Chemistry.

  12. The Smithsonian American Art Museum GATEWAY Demonstration

    Broader source: Energy.gov [DOE]

    View the video about using LEDs in a GATEWAY demonstration at the Smithsonian American Art Museum in Washington, DC, including an interview with lighting designer Scott Rosenfeld.

  13. North American Electric Reliability Corporation (NERC): Reliability...

    Office of Environmental Management (EM)

    (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of...

  14. American Energy and Manufacturing Competitiveness Summit

    Broader source: Energy.gov [DOE]

    The American Energy and Manufacturing Competitiveness Summit will bring together leaders and perspectives from industry, government, academia, national laboratories, labor, and policy organizations...

  15. Building America Research for the American Home

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's (DOE) Building America program is helping to engineer American homes for better energy performance, durability, quality, affordability, and comfort.

  16. Sandia National Laboratories: American Society of Mechanical...

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

    Paper Presented at American Society of Mechanical Engineers' (ASME) 2012 Internal Combustion Engine Division (ICED) Conference On August 28, 2013, in CRF, Energy, Energy...

  17. Asian American Pacific Islander Heritage Month

    Broader source: Energy.gov [DOE]

    Generations of Asian Americans and Pacific Islanders (AAPIs) have helped make America what it is today. Their histories recall bitter hardships and proud accomplishments -- from the laborers who...

  18. American Valve: Proposed Penalty (2010-CW-1411)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that American Valve, Inc. failed to certify a variety of showerheads as compliant with the applicable water conservation standards.

  19. North American Renewables Registry (Multiple States)

    Broader source: Energy.gov [DOE]

    The North American Renewables Registry (NAR) provides a Web-based platform trusted to create, track, and manage renewable energy certificate (REC) origination for clean generation facilities and...

  20. Comments of North American Electric Reliability Corporation ...

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

    currently developing a report, entitled "Reliability Consideration from Integration of Smart Grid" that will address many of the issues raised in the DOE RFI. North American...

  1. New American Home 2011, Orlando, Florida (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-12-01T23:59:59.000Z

    This brochure details the New American Home 2011, which demonstrates the use of innovative building materials, cutting-edge design, and the latest construction techniques.

  2. Americans with Disabilities Act Signed (1990) | Department of...

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

    Americans with Disabilities Act Signed (1990) Americans with Disabilities Act Signed (1990) July 26, 2013 7:30PM EDT The Americans with Disabilities Act of 1990 (ADA) prohibits...

  3. Mesozoic evolution of the northeast African shelf margin, Libya and Egypt

    SciTech Connect (OSTI)

    Aadland, R.K.; Schamel, S.

    1988-08-01T23:59:59.000Z

    The present tectonic features of the northeast African shelf margin between the Nile delta and the Gulf of Sirte are products of (1) precursory late Paleozoic basement arches, (2) early Mesozoic rifting and plate separation, and (3) Late Cretaceous structural inversion. Isopach and structural maps, cross sections, and sediment accumulation (geohistory) curves constructed from 89 wells in the Western Desert and 27 wells in northeastern Libya depict the structural and stratigraphic development of the northeast African shelf margin.

  4. american summer monsoon: Topics by E-print Network

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

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 320 UNIVERSITY OF ROCHESTER Summer Housing Application...

  5. Holographic superconductor in the exact hairy black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Chanyong Park

    2011-09-13T23:59:59.000Z

    We study the charged black hole of hyperbolic horizon with scalar hair (charged Martinez-Troncoso-Zanelli: CMTZ black hole) as a model of analytic hairy black hole for holographic superconductor. For this purpose, we investigate the second order phase transition between CMTZ and hyperbolic Reissner-Nordstr\\"om-AdS (HRNAdS) black holes. However, this transition unlikely occur. As an analytic treatment for holographic superconductor, we develop superconductor in the bulk and superfluidity on the boundary using the CMTZ black hole below the critical temperature. The presence of charge destroys the condensates around the zero temperature, which is in accord with the thermodynamic analysis of the CMTZ black hole.

  6. The Acculturation of Chinese-American Adolescents in Negotiating Autonomy and Connectedness: Comparison between Chinese- and European-Americans

    E-Print Network [OSTI]

    Chang, Tzu-Fen

    2012-02-14T23:59:59.000Z

    with the dominant culture to show similar desires of being autonomous as European-American adolescents. However, Chinese-American mothers adopted more authoritarian, conservative, and inflexible parenting styles than European-American mothers. With regard...

  7. Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition, Copyright 2004, American Society for Engineering Education

    E-Print Network [OSTI]

    Roylance, David

    Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition between the two institutions. #12;Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition, Copyright © 2004, American Society for Engineering Education

  8. Native American Barbie: The Marketing of Euro-American Desires

    E-Print Network [OSTI]

    Schwarz, Maureen Trudelle

    2006-03-01T23:59:59.000Z

    have a story to tell. Nineteenth-century American notions of play were not intimately bound up with toys. The limited playthings that children did have were made in small local craft industries or constructed by either children themselves... or their fam ily members out of paper, wood, fabric, wrought iron, or tin. In these circum stances, activities for boys and girls mimicked the gender-specific behaviors of parents. Girls played at domestic and child-care tasks with dolls made to look like...

  9. american mink neovison: Topics by E-print Network

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

    K 1998-01-01 203 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  10. american roentgen ray: Topics by E-print Network

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

    K 1998-01-01 199 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  11. asccp kongress american: Topics by E-print Network

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

    K 1998-01-01 166 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  12. american agalinis orobanchaceae: Topics by E-print Network

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

    Page Topic Index 161 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  13. american erionite-associated mesothelioma: Topics by E-print...

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

    K 1998-01-01 160 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  14. american beaver castor: Topics by E-print Network

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

    K 1998-01-01 244 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  15. american samoa: Topics by E-print Network

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

    K 1998-01-01 202 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  16. american pika ochotona: Topics by E-print Network

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

    K 1998-01-01 165 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  17. american sycamore platanus: Topics by E-print Network

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

    K 1998-01-01 172 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  18. american opossum didelphis: Topics by E-print Network

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

    K 1998-01-01 179 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  19. american solanum subgen: Topics by E-print Network

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

    K 1998-01-01 187 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...

  20. american hydrovatus coleoptera: Topics by E-print Network

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

    K 1998-01-01 211 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...