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- Title
- Spectroscopic studies of zinc(1-x) manganese(x) sulfur.
- Creator
- Chen, Xiaoming., Florida Atlantic University, Medina, Fernando D.
- Abstract/Description
-
The optical properties of the diluted magnetic semiconductor Zn1-x MnxS have been studied by using photoluminescence emission, lifetime and excitation spectroscopies. In photoluminescence spectroscopy three bands were found peaking at 585 nm (yellow band), 650 nm (orange band) and 750 nm (red band). For the yellow and red bands the peak position changes little with Mn concentration. For the orange band the peak energy decreases with increasing Mn concentration. The lifetimes of the yellow,...
Show moreThe optical properties of the diluted magnetic semiconductor Zn1-x MnxS have been studied by using photoluminescence emission, lifetime and excitation spectroscopies. In photoluminescence spectroscopy three bands were found peaking at 585 nm (yellow band), 650 nm (orange band) and 750 nm (red band). For the yellow and red bands the peak position changes little with Mn concentration. For the orange band the peak energy decreases with increasing Mn concentration. The lifetimes of the yellow, orange and red bands were found to be about 70, 50 and 7 mus. The results of the lifetime measurements support the assumption that there is energy transfer from the yellow to the red band through radiationless transitions. In the excitation spectroscopy of the yellow band four peaks were found peaking near 526, 487, 461 and 426 nm. These four bands have been ascribed to transitions from the four lowest excited states of Mn ++ to the ground state. (Abstract shortened with permission of author.)
Show less - Date Issued
- 1992
- PURL
- http://purl.flvc.org/fcla/dt/14790
- Subject Headings
- Diluted magnetic semiconductors, Photoluminescence, Spectrum analysis
- Format
- Document (PDF)
- Title
- Spectroscopic studies of ZnWO4 and doped ZnWO4 single crystals.
- Creator
- Wang, Hong, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Physics
- Abstract/Description
-
Zinc tungstate (ZnWO4) is promising as a scintillator and laser host material. However, the presence of color centers limit its applications. It has been found that special annealing techniques or doping with metallic elements such as Nb or Sb can bleach the samples (Zhou et al. 1986a, 1986b, 1989). A group-theoretical analysis of the characteristic lattice vibrational modes for ZnWO4 single crystals is given. The mode assignments have been made. The temperature dependence of the Raman...
Show moreZinc tungstate (ZnWO4) is promising as a scintillator and laser host material. However, the presence of color centers limit its applications. It has been found that special annealing techniques or doping with metallic elements such as Nb or Sb can bleach the samples (Zhou et al. 1986a, 1986b, 1989). A group-theoretical analysis of the characteristic lattice vibrational modes for ZnWO4 single crystals is given. The mode assignments have been made. The temperature dependence of the Raman spectra has been obtained experimentally in various polarization geometries. Anharmonic contributions and interactions between phonons are discussed. Photoluminescence studies of ZnWO4 (colored, color-free), ZnWO4: Nb and ZnWO4:Sb have been carried out in the temperature range from 11 to 430 K. All samples show the blue emission band. An IR emission band with a zero-phonon line (ZPL) has been found in ZnWO4 colored samples only. The lineshape function of the emission bands has been theoretically studied and compared with the experimental results. Radiative, non-radiative and multiphonon transitions have been investigated in the thermal quenching model. The temperature dependences of the intensity, the frequency and the linewidth of the ZPL have been studied. Using the Single Configurational Coordinate model, the linear coupling between electrons and phonons has been analyzed. The quadratic coupling of electrons and phonons has been studied in the Debye approximation. The coupling of electronic transitions to normal vibrational modes, pseudo-localized vibrational modes and localized modes is also discussed.
Show less - Date Issued
- 1993
- PURL
- http://purl.flvc.org/fcla/dt/12346
- Subject Headings
- Physics, Condensed Matter, Physics, Optics, Engineering, Materials Science
- Format
- Document (PDF)
- Title
- Spectrum fatigue of welded structural steel in sea water.
- Creator
- Clark, A. M., Qian, D., Hartt, William H., Martin, P. E., Czarnecki, M. F., Harbor Branch Oceanographic Institute
- Date Issued
- 1983
- PURL
- http://purl.flvc.org/fau/fd/FA00007432
- Subject Headings
- Offshore structures--Welded joints--Fatigue, Steel, Structural--Fatigue, Seawater
- Format
- Document (PDF)
- Title
- SPECTRUM FATIGUE ON WELDED STRUCTURAL STEEL UNDER CORROSION AND CATHODIC PROTECTION CONDITIONS.
- Creator
- YANG, JOE-MING., Florida Atlantic University, Hartt, William H., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
The object of this work was to investigate the fatigue performance of 25.4mm thick, butt welded ABS DH-32 steel plate under spectrum loading, which simulated the environmental conditions of the North Sea. Specimens were tested in sea water under different levels of cathodic protection. The results, including the previous freely corroding data, are discussed with regard to the effect of cyclic - frequency, loading history, weld profile and cathodic protection. This study indicated that load...
Show moreThe object of this work was to investigate the fatigue performance of 25.4mm thick, butt welded ABS DH-32 steel plate under spectrum loading, which simulated the environmental conditions of the North Sea. Specimens were tested in sea water under different levels of cathodic protection. The results, including the previous freely corroding data, are discussed with regard to the effect of cyclic - frequency, loading history, weld profile and cathodic protection. This study indicated that load interaction effects are negligible in the present experiments. However, frequency, weld geometry and cathodic protection significantly effect fatigue life.
Show less - Date Issued
- 1984
- PURL
- http://purl.flvc.org/fcla/dt/14207
- Subject Headings
- Steel, Structural--Fatigue, Steel, Structural--Testing
- Format
- Document (PDF)
- Title
- Speculative bubbles and tests of the contagion mechanism in financial markets.
- Creator
- Porras Gonzalez, Eva Raquel., Florida Atlantic University, Wiley, Marilyn
- Abstract/Description
-
This dissertation extends previous research on bubbles by investigating whether changes in the financial asset prices of the S&P500 reflect changes in fundamentals. We propose that if this is not the case the volatility is due to a bubble. Hence, this is the general hypothesis from which several testable hypotheses are developed. A key issue in bubble research is the definition of fundamentals. In this work we assume that, in the long-run, operating revenues are the only source from which any...
Show moreThis dissertation extends previous research on bubbles by investigating whether changes in the financial asset prices of the S&P500 reflect changes in fundamentals. We propose that if this is not the case the volatility is due to a bubble. Hence, this is the general hypothesis from which several testable hypotheses are developed. A key issue in bubble research is the definition of fundamentals. In this work we assume that, in the long-run, operating revenues are the only source from which any payments can be made, including dividend payments. Therefore, if expectations are formulated correctly, on average, there has to be a relationship between changes in prices and changes in corporate revenues. Thus, we use different accounting variables as proxies for fundamentals. In addition, since the literature points to contagion of opinion as one of the causes for the creation of bubbles, we also examine the contemporaneous relationship between prices and several proxies for herding behavior. OLS, panel data analysis, and quantile regression are used to analyze the contemporaneous relationship between prices and fundamentals or contagion proxies; while cointegration (reconciled to be used with panel data) and the Bonferroni inequality are used to investigate the long-run equilibrium between prices and fundamentals. The results indicate that, overall, company earnings are not explanatory of prices. These findings hold both in the short-run and in the long-run equilibrium scenarios. In addition, we find that investors do not reward an increase of the debt in the capital structure of corporations. In reference to our contagion variables, changes in money flow, volume, and volatility are found explanatory of changes in prices. Nevertheless, the effect of these variables is not homogeneous across price changes. Specifically, Money Flow is significant across all quantiles except for the 30% lowest price changes, Volume is explanatory of the 35% highest price changes, while volatility is explanatory across all the distribution of price changes. An interesting observation is that the three independent variables become increasingly explanatory as we move up to higher quantiles. Taken together our findings are supportive of the bubble and contagion hypotheses.
Show less - Date Issued
- 2000
- PURL
- http://purl.flvc.org/fcla/dt/12643
- Subject Headings
- Speculation, Cointegration, Stocks--Prices
- Format
- Document (PDF)
- Title
- Speech against the reduction of the salaries of the teachers in the public schools : delivered before the Board of Commissioners.
- Creator
- M'Jilton, J. N. (John Nelson) 1805-1875, Sherwood & Co.
- Abstract/Description
-
Public school teachers make their stand as the guardians of Western civilization. Running title: Speech against the reduction of teachers' salaries. "Published by the teachers." Last page blank. Appendix, pages [31]-35.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb14f3
- Subject Headings
- Maryland -- Baltimore, Speeches, addresses, etc., American -- 19th century, Teachers -- Salaries, etc -- Maryland -- Baltimore
- Format
- E-book
- Title
- Speech by Hon. Sanford E. Church, at Batavia, October 13, 1863.
- Creator
- Church, Sanford E. (Sanford Elias) 1815-1880, Society for the Diffusion of Political Knowledge (New York, N.Y.)
- Abstract/Description
-
Criticism of the Abraham Lincoln administration's war policy. Two columns to the page. Without imprint or date, but reissued in Hand-book of the Democracy for 1863 & '64, listed in contents under Publications of the Society for the Diffusion of Political Knowledge as no. 16, "Speech of Hon. Mr. Church". FAU copy imperfect: closely trimmed (to 22 cm) affecting page numbers at top. FAU copy has inscription: To N. Jersey His. Soc. from S. Alofsen. May 17. 1864.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb21f11
- Subject Headings
- American Civil War (1861-1865), Campaign literature -- 1863 -- Democratic, Campaign literature -- New York (State), Campaign literature -- United States -- 19th century, Campaign speeches -- New York (State), Democratic Party (U.S.), Presidents -- United States -- Election -- 1864, Speeches, addresses, etc., American -- 19th century, United States -- History -- Civil War, 1861-1865 -- Protest movements, United States -- Politics and government -- 1861-1865
- Format
- E-book
- Title
- Speech delivered at a meeting of voters of the Molotov electorial area of Moscow, Febr. 6, 1946.
- Creator
- Molotov, Vjaceslav Michajlovic
- Date Issued
- 1946
- PURL
- http://purl.flvc.org/FCLA/DT/3172716
- Subject Headings
- Russia; Soviet Union 1917 - 1987; personalities; Molotov.
- Format
- Document (PDF)
- Title
- Speech delivered by Daniel Webster at Niblo's saloon, in New York, on the 15th March, 1837.
- Creator
- Webster, Daniel 1782-1852, Harper & Brothers
- Abstract/Description
-
Cover title. "The proceedings and correspondence which preceded the delivery of the speech"--Page [1]-4. "Speech. 'We have one country--one constitution--one destiny"--Page [5]-35.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb12f6
- Subject Headings
- United States -- Politics and government -- 1829-1837, United States -- History -- 1815-1861, Speeches, addresses, etc., American -- 19th century
- Format
- E-book
- Title
- Speech delivered by Hon. J.M. Ashley, of Ohio : on the rebellion---its causes and consequences, at College Hall in the city of Toledo, Tuesday evening, Nov. 26, 1861.
- Creator
- Ashley, James Mitchell 1824-1896, L. Towers & Co.
- Abstract/Description
-
Caption title: Rebellion--its causes and consequences : speech delivered by Hon. J.M. Ashley of Ohio, at College Hall in the city of Toledo, Tuesday evening, Nov. 26, 1861. Speech delivered by Honorable J.M. Ashley, of Ohio. Notes: Cover title. "The demand for this speech has been so great that the first edition was soon exhausted, and a larger one is now issued..."--Inside front cover. Colophon reads: L. Towers & Co., printers, corner 6th street and Louisiana Avenue, Washington, D.C. On...
Show moreCaption title: Rebellion--its causes and consequences : speech delivered by Hon. J.M. Ashley of Ohio, at College Hall in the city of Toledo, Tuesday evening, Nov. 26, 1861. Speech delivered by Honorable J.M. Ashley, of Ohio. Notes: Cover title. "The demand for this speech has been so great that the first edition was soon exhausted, and a larger one is now issued..."--Inside front cover. Colophon reads: L. Towers & Co., printers, corner 6th street and Louisiana Avenue, Washington, D.C. On Lincoln's activities: pages 9-10. FAU copy has original pink printed wrappers, side stitched with cord.
Show less - PURL
- http://purl.flvc.org/fau/fd/fauwsb19f6
- Subject Headings
- American Civil War (1861-1865), Lincoln, Abraham -- 1809-1865 -- Military leadership, Ohio -- Politics and government -- 1861-1865, Slavery -- United States, Speeches, addresses, etc., American -- 19th century, United States -- History -- Civil War, 1861-1865 -- Causes, United States -- Politics and government -- 1861-1865
- Format
- E-book
- Title
- Speech delivered by Hon. Josiah Quincy, Senior : before the Whig State Convention, assembled at the Music Hall, Boston, Aug. 16, 1854.
- Creator
- Quincy, Josiah 1772-1864, John Wilson and Son
- Abstract/Description
-
Relates mainly to the Fugitive slave law. Speech delivered by Honorable Josiah Quincy, Senior, before the Whig State Convention. Speech delivered by Josiah Quincy, Senior, before the Whig State Convention.FAU copy has original printed wrappers; side stitched with cord.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb17f13
- Subject Headings
- Fugitive slave law (United States : 1850), Fugitive slaves -- United States, Massachusetts -- Politics and government -- 1775-1865, Political conventions -- Massachusetts -- Boston, Slavery -- Law and legislation -- United States, Speeches, addresses, etc., American -- 19th century, United States -- Fugitive slave law (1850), United States -- Kansas Nebraska Act, United States -- Politics and government -- 1853-1857, Whig Party (Mass.)
- Format
- E-book
- Title
- Speech delivered in Faneuil Hall, Boston, October 27, 1857 : also, speech delivered in City Hall, Newburyport, October 31, 1857.
- Creator
- Cushing, Caleb 1800-1879
- Abstract/Description
-
Wrapper title: Speeches by Caleb Cushing. FAU copy edges trimmed to 24 cm. Has original printed wrappers, side stitched with cord.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb18f14
- Subject Headings
- Slavery -- Political aspects -- United States -- History -- 19th century -- Sources, Speeches, addresses, etc., American -- 19th century, United States -- Politics and government -- 1853-1857, United States -- Politics and government -- 1857-1861, Cushing, Caleb 1800-1879 Speech delivered in City Hall, Newburyport, October 31, 1857
- Format
- E-book
- Title
- Speech inflection in American musical theatre compositions.
- Creator
- Zuim, Ana Flavia., Dorothy F. Schmidt College of Arts and Letters, Department of Languages, Linguistics and Comparative Literature
- Abstract/Description
-
This dissertation examines the role of speech inflection in the composition of melodies of American musical theatre and investigates how composers approached speech inflection in their work throughout this genre's history. Through analysis of songs and interviews with composers, this dissertation investigates the relevance of speech inflection in the various styles of composition existing on Broadway. The main focus of musical theatre compositions, especially post Rodgers and Hammerstein's...
Show moreThis dissertation examines the role of speech inflection in the composition of melodies of American musical theatre and investigates how composers approached speech inflection in their work throughout this genre's history. Through analysis of songs and interviews with composers, this dissertation investigates the relevance of speech inflection in the various styles of composition existing on Broadway. The main focus of musical theatre compositions, especially post Rodgers and Hammerstein's musical Oklahoma, is to move the plot along through songs. Therefore, the delivery of the text must be of ultimate consideration in the writing of modern musicals. A well-written speech-melody facilitates the process of a speech-melody-interpretation, which will result in the delivery of lyrics with an understandable, natural sounding quality. This investigation happens through a chronologic evaluation of the relevance of speech inflection during each of the distinct phases on Broadway, as well as an examination of the approach to writing with a speech-melody focus of each individual composer throughout history. This study explores the importance of speech inflection in American musical theatre songwriting focusing on a speech-melody approach to composition.
Show less - Date Issued
- 2012
- PURL
- http://purl.flvc.org/FAU/3352883
- Subject Headings
- Music and semiotics, Music and language, Musicals, Writing and publishing, Musical theater, History and criticism
- Format
- Document (PDF)
- Title
- Speech of Alphonso Taft at Marietta, O., delivered August 9, 1875.
- Creator
- Taft, Alphonso 1810-1891, Cincinnati Gazette Company
- Abstract/Description
-
FAU Libraries' copy imperfect: covers missing, loose pages, all edges trimmed (22 cm).
- PURL
- http://purl.flvc.org/fau/fd/fauwsb23f38
- Subject Headings
- Campaign literature -- 1875 -- Republican -- Ohio, Campaign literature -- United States -- 19th century, Currency question -- United States -- History, Depressions, Finance, Public -- United States -- History -- 19th century, Financial crises -- United States -- History -- 19th century -- Sources, Money -- United States -- History, Reconstruction (U.S. history, 1865-1877), United States -- Economic conditions -- 1865-1918, United States -- History -- Civil War, 1861-1865 -- Economic aspects
- Format
- E-book
- Title
- Speech of David Paul Brown, before the Mayor's Court of Philadelphia, September 17, 1825 : on the subject of a riot and assault and battery.
- Creator
- Brown, David Paul 1795-1872, Gould, M. T. C. (Marcus Tullius Cicero) 1793-1860
- Abstract/Description
-
Taken in shorthand by M.T.C. Gould, stenographer. "Commonwealth vs. John M'Morris ... "--Page [v]. Concerns riot of Irish emigrants aboard the ship Niagra. John M'Morris, William M'Bride, John Casey and nine others were charged with riot and assault and battery on Stephen Hymer.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb10f4
- Subject Headings
- Irish -- Pennsylvania -- Philadelphia -- History -- 19th century, Speeches, addresses, etc., American -- 19th century, Riots -- Pennsylvania -- Philadelphia -- Cases, Casey, John -- Trials, litigation, etc, Hymer, Stephen -- Trials, litigation, etc, Trials (Assault and battery) -- Pennsylvania -- Philadelphia, M'Bride, William -- Trials, litigation, etc, Assault and battery -- Pennsylvania -- Philadelphia -- Cases, M'Morris, John -- Trials, litigation, etc, Trials (Riots) -- Pennsylvania -- Philadelphia
- Format
- E-book
- Title
- Speech of Edward C. Delavan, Esq., at a meeting of the friends of Mr. Fillmore, at Ballston, Aug. 9, 1856.
- Creator
- Delavan, Edward C. (Edward Cornelius) 1793-1871
- Abstract/Description
-
Speech by Mr. Edward C. Delavan, Esq., at a meeting of the friends of Mr. Fillmore, at Ballston.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb17f30
- Subject Headings
- American Party, Campaign literature -- United States -- 19th century, Campaign speeches -- New York (State) -- 19th century, Fillmore, Millard -- 1800-1874, New York (State) -- Politics and government -- 1775-1865, Presidents -- United States -- Election -- 1856, Slavery -- United States, Speeches, addresses, etc., American -- 19th century, United States -- Politics and government -- 1853-1857
- Format
- E-book
- Title
- Speech of Ex-Gov. Thos. H. Seymour, at the City Hall, Hartford : on Tuesday evening, February 10th, 1863.
- Creator
- Seymour, Thomas H. (Thomas Hart) 1807-1868
- Abstract/Description
-
First lines: Mr. Chairman and Fellow Citizens: I thank you for this kind reception. Resolutions adopted by the Democratic State Convention, at Hartford, February 18th, 1863. Speech of Ex-Governor Thomas H. Seymour. Notes: Printed in two columns divided by single line. Summary: Speech attacks national administration for provoking the Civil War and for suppression of civil rights; thirteen resolutions call for states' rights and peace, and object to emancipation, conscription and paper currency...
Show moreFirst lines: Mr. Chairman and Fellow Citizens: I thank you for this kind reception. Resolutions adopted by the Democratic State Convention, at Hartford, February 18th, 1863. Speech of Ex-Governor Thomas H. Seymour. Notes: Printed in two columns divided by single line. Summary: Speech attacks national administration for provoking the Civil War and for suppression of civil rights; thirteen resolutions call for states' rights and peace, and object to emancipation, conscription and paper currency. Contents: Speech of Ex-Gov. Thos. H Seymour / Thomas H. Seymour -- Resolutions adopted by the Democratic State Convention, at Hartford, February 18th, 1863.
Show less - PURL
- http://purl.flvc.org/fau/fd/fauwsb20f37
- Subject Headings
- American Civil War (1861-1865), Broadsides -- Connecticut -- 1863, Connecticut -- Politics and government -- 1861-1865, Constitutional law -- United States -- History -- Sources, Democratic Party (Conn.), Lincoln, Abraham -- 1809-1865 -- Adversaries, Slaves -- Emancipation -- United States, States' rights (American politics) -- History -- Sources, United States -- History -- Civil War, 1861-1865 -- Protest movements, United States -- Politics and government -- 1861-1865
- Format
- E-book
- Title
- Speech of Governor Seymour at Philadelphia.
- Creator
- Seymour, Horatio 1810-1886, Democratic Party (U.S.) Central Executive Campaign Committee
- Abstract/Description
-
Series: Campaign document (Democratic Party (U.S.)) ; no. 21. Notes: Caption title. At head of title: "Sold at 13 Park Row, New York, and at all Democratic Newspaper Offices, at $1 per 1,000 pages." Text printed in two columns.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb21f36
- Subject Headings
- Campaign literature -- 1864 -- Democratic, Campaign literature -- United States -- 19th century, Democratic Party (U.S.), Draft -- United States -- History -- 19th century -- Sources, Speeches, addresses, etc., American -- 19th century, United States -- Army -- Recruiting, enlistment, etc, United States -- History -- Civil War, 1861-1865, United States -- Politics and government -- 1861-1865
- Format
- E-book
- Title
- Speech of Hon. Alex. W. Buel, in defence of the Constitution and the Union. Delivered at a public dinner given to him by his fellow-citizens, at Detroit, November 19, 1850.
- Creator
- Buel, Alexander Woodruff 1813-1868
- Abstract/Description
-
Speech of Honorable Alexander W. Buel, in defense of the Constitution and the Union.Notes: FAU copy in original paper wrappers; side stiched with cord.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb15f7
- Subject Headings
- Compromise of 1850, Fugitive slaves -- Legal status, laws, etc -- United States -- History -- Sources, Fugitive slaves -- United States -- History -- Sources, Slavery -- Law and legislation -- United States, Slavery -- Political aspects -- United States -- History, Slavery -- United States -- History -- Sources, United States -- Politics and government -- 1849-1853, United States -- Constitution, United States -- Fugitive slave law (1850), United States -- History -- Civil War, 1861-1865 -- Causes -- Sources
- Format
- E-book
- Title
- Speech of Hon. Amasa J. Parker, Democratic candidate for governor.
- Creator
- Parker, Amasa J. (Amasa Junius) 1807-1890
- Abstract/Description
-
Caption title. At head of title: Read and circulate. Text printed in two columns.
- PURL
- http://purl.flvc.org/fau/fd/fauwsb18f24
- Subject Headings
- Campaign literature -- 1858 -- Democratic Republican -- New York (State), Campaign literature -- New York (State) -- 19th century, Elections -- New York (State) -- 19th century, Slavery -- Political aspects -- United States -- 19th century, Speeches, addresses, etc., American -- 19th century
- Format
- E-book