cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Influence of Strand Design, Boron Type, and Carbon Doping Method on the Transport Properties of Powder-in-Tube MgB2-XCX Strands
Creators: name: Yang, Y.
name: Susner, M.
name: Sumption, M. D.
name: Rindfleisch, M.
name: Tomsic, M.
name: Collings, E. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The transport properties of a number of MgB2 strands have been investigated in terms of their response to strand design, starting B powder choice, and the approach to C doping used. The strands had various designs, specifically; (i) several chemical barriers were introduced, viz: Fe and Nb, (ii) the strands were encased in various outer-sheath materials, viz.: monel, Cu+monel, monel+glidcop, Nb+monel, (iii) the filament counts were varied (1, 18, and 36), and (iv) the final strand diameter was varied. In addition, for a subset of the strand designs several B powder and C-dopant types were investigated. Specifically, two types of amorphous B powder were used: (i) Moissan based "Tangshan boron" (ii) "SMI-boron" which is produced in a plasma torch by the reduction-by-hydrogen of BCl3. Two approaches to C doping were taken: (i) "malic-acid treatment" in which C is introduced into the B powder precursor by the moderate temperature drying out a slurry of B mixed in with a malic-acid-toluene solution (during which the malic acid decomposes leaving C as the only solid residue) before the Mg powder is mixed in; (ii) direct C doping of the SMI-produced B by introducing a known percentage of CH4 into the plasma flame. Critical current densities, Jc, were measured on 1.5 m long samples at 4.2 K in fields of up to 14 T; of all the strands measured, that doped with SMI-C at a nominal 4 mol% C (in relation B) yielded the highest Jc values e.g 1.1x105 A/cm2 at 7 T, 4.5x104 at 10 T, and 2.2x104 A/cm2 at 12 T. The n-values are given for all strands at 5 and 10 T, and for a certain set of strands the magnetic field dependencies of the n-values and the influence of C-doping is presented. Finally we demonstrate that, over a wide range of B, log(Jc) decreases linearly with B with a slope -α such that the Jc(B) of any strand can be parameterized in terms of α and its zero-field intercept Jc(B=0).
description: 35 pages, 6 tables and 5 figures
Poetics of liveliness : theories of embryological development and Gertrude Stein's "The Making of Americans"
Creators: name: Smailbegovic, Ada
Publisher: name: University of British Columbia
Year: 2009

description: This thesis seeks to create a theoretical space in which Gertrude Stein’s conceptualizations of life and liveliness are related to the biological understandings of living organisms. The primary focus is Stein’s early novel The Making of Americans (1911), in which she seeks to compose her characters in the process of living. The biological context for thinking about Stein’s ideas of liveliness is formulated around theories of embryological development, and, in particular, the historical relation between two developmental theories — preformation and epigenesis. The critical analysis follows the way in which Stein’s initial project of classifying every possible kind of men and women to create a typology of personalities in The Making of Americans is complicated by her interest in how personalities change through relations that form between individuals. The tension that arises between Stein’s initial intention to classify different personality types and her realization that relations play a constitutive role in the development of personality parallels the history of conflict and synthesis between preformation and epigenesis.
Open Quantum System Approach to the Modeling of Spin Recombination Reactions
Creators: name: Tiersch, M.
name: Steiner, U. E.
name: Popescu, S.
name: Briegel, H. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In theories of spin-dependent radical pair reactions, the time evolution of the radical pair, including the effect of the chemical kinetics, is described by a master equation in the Liouville formalism. For the description of the chemical kinetics, a number of possible reaction operators have been formulated in the literature. In this work, we present a framework that allows for a unified description of the various proposed mechanisms and the forms of reaction operators for the spin-selective recombination processes. Based on the concept that master equations can be derived from a microscopic description of the spin system interacting with external degrees of freedom, it is possible to gain insight into the underlying microscopic processes and to develop a systematic approach towards determining the specific form of reaction operator in concrete scenarios.
description: 20 pages
Weakly primitive rings
Creators: name: Bryden, John Milton
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: QA 247 B58 1979 Fiche
subject: Rings (Algebra)

description: Bibliography: p. 84.
description: Everyone who has aquainted himself with some ring theory is familiar with Jacobson's classical structure theorem for primitive rings. This thesis is based on the study of a class of prime rings which satisfy a weaker criterion than the class of primitive rings. The study of prime rings plays a significant role in modern ring theory, and since Jacobson's result includes the Wedderburn-Artin Theorem, which is the major structure theorem for rings possessing descending chain conditions, as a special case, the importance of Jacobson's result cannot be understated. The central concepts and results presented here were originally proved by Zelmanowitz in [9] and Amitsur in [1]. We call a module compressible provided that for any non- zero submodule N of M, HomR(MN) contains a monomorphism, and is called monoform when each non- zero element of HomR(N,M) is injective. Our major result (Zelmanowitz [9]) shows that a ring possessing a faithful compressible monoform module satisfies a weakened density criterion (such rings are called weakly primitive). Next we define a module R Mto be prime [ semiprime] if for any non- zero elements m,m 1 E M there exists f E HomR(M,R) such that (nif)m 1 0 0 [(mnf)m 0 0] and we specialize Zelmanowitz' result to the case of prime and semiprime modules with certain maximum conditions ( Zelmanowitz [ 8 ]). Finally, we give an exposition of some results by Nicholson, Watters and Zelmanowitz in [7] concerning derived rings of weakly primitive rings. Among other interesting results we prove that polynomial rings and certain group rings over weakly primitive rings are weakly primitive as well.
The Slave Trade Department of the British Foreign Office and the suppression of the transatlantic slave trade, 1819-1854
Creators: name: Lypka, Dennis Andrew
Publisher: name: University of Calgary
Year: 1977
Subjects: subject: HT 1162 L967 1977 Microfiche
subject: Slave trade - History
subject: Slave trade - Great Britain
subject: Slavery in Great Britain - Anti-slavery movements

description: Bibliography: p. 205-214.
Transvaal in British public opinion, 1876-1881
Creators: name: Metcalfe, Robert York
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: DT 926 M46 1972
subject: Transvaal - History - To 1880
subject: Transvaal - History - War of 1880-1881
subject: Transvaal - Foreign opinion, British
subject: Newspapers - Great Britain
subject: English periodicals - 19th century

description: Bibliography: p. 88-97.
Dimensions of meaning in relation to the orienting reaction
Creators: name: Birdwell, Joel Allen
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: BF 299 O7 B49 1972 Microfilm
subject: Orientation
subject: Meaning (Psychology)

description: Bibliography: p. 94-102.
description: This experiment was conducted to determine whether measures of a phasic orienting reaction (OR) obtained for ~sin a verbal stimulation situation might be related to the dimensions of affective meaning. Osgood's Semantic Atlas and a semantic differential (SD) made up of 15 bi-polar adjectival scales were used to determine the dimensions of affective meaning. One hypothesis was that the affective meaning of a stimulus may be more important to the magnitude of aphasic orienting reaction than are the physical properties of a verbal stimulus. Another interest of the research was whether the concept factor scores, determined by the semantic differential technique, of some selected words could be used to differentiate subjects as high or low orienters. The concepts chosen from the Semantic Atlas were used to elicit the OR in an experimental situation. Subsequent to this the Ss rated 12 semantic differentials and filled in a debriefing questionnaire. Data were obtained for 4 physiological variables from 36 first year male university students. The data yielded frequency, latency, and amplitude scores which were subjected to multivariate statistical analysis, multivariate analysis of variance. The initial response to the first word in the experimental situation was used to divide Ss into a high orienting group (HOR) and a low orienting group (LOR). These two groups provided the criterion variable for a discriminant analysis of the evaluative, potency, and activity factor scores obtained from the semantic differential data. The results revealed that affective meaning is related to the phasic aspects of the OR. Words which are high and low in affective meaning elicit different levels of the OR than do neutrally affective words, when stimulus intensity is held constant. Further, the order in which the words are presented also affects the amplitude of the OR. The discriminant analysis results did not show that HOR and LOR groups had different SD factor score profiles. The results are discussed in relation to other findings. Precautionary statements were made about possible errors which can be introduced into a psychophysiological study by the experimental environment and the subjects. Comments were also made in regard to controlling errors in the study.
The Abyssinian expedition, 1867-1868
Creators: name: Tayal, Maureen Jean
Publisher: name: University of Calgary
Year: 1975
Subjects: subject: DT 386.3 T38 1975 Microfiche
subject: Abyssinian Expedition, 1867-1868
subject: Great Britain - Foreign relations - France
subject: France - Foreign relations - Great Britain

description: Bibliography: p. 166-172.
Characterization of fading and polarization state dispersion on fixed wireless links in suburban macrocell environments
Creators: name: Liou, Anthony En-Lee
Publisher: name: University of British Columbia
Year: 2009

description: Growing use of point-to-multipoint fixed wireless networks to support network access and system automation in suburban macrocell environments has prompted regulators to re-allocate various bands between 200 MHz and 2 GHz to such applications. Links in such networks are usually obstructed by buildings and foliage and are classified as non-line-of-sight. Although it is well-known that such links are susceptible to fading caused by windblown trees and foliage, most past efforts to characterize fading on such links have focused on frequency bands at 1.9 GHz and above. Here, we study how the depth and rate of fading in the 220, 850 and 1900 MHz bands vary with distance and time-averaged wind speed in a representative macrocell environment. We observed that while the signal fading is relatively severe at 1.9GHz, the depth of fading drops rapidly as the carrier frequency decreases. However, the rate of fading is effectively independent of either the average wind speed or the carrier frequency. Further, polarization diversity on narrowband wireless links has traditionally been characterized in terms of the fading statistics and the cross-correlation between the fading signals on each branch. A complementary approach, which is independent of the polarization states of the diversity receiving antennas, is to characterize the manner in which the polarization states observed at the receiver disperse across the Poincaré sphere. First, by simulation, we show that when the fading signals observed on orthogonal diversity branches follow ideal Ricean statistics, the distribution of polarization states on the Poincaré sphere is well-approximated by a Fisher distribution whose concentration parameter is: (1) determined by the corresponding Ricean K-factors and the cross-correlation coefficient between the diversity branches, and (2) a good indicator of the level of cross-polar discrimination (XPD). Finally, from measurements collected in a typical suburban macrocell environment at 1.9GHz, we show that: (1) the means of the polarization state distributions also tends to follow a Fisher distribution and (2) the Fisher concentration parameter is negatively correlated with the average wind speed. Development of a model applicable to a broad range of environments will require additional data from other sites and measurement configurations.
New Entropy Estimator with an Application to Test of Normality
Creators: name: Bouzebda, Salim
name: Elhattab, Issam
name: Keziou, Amor
name: Lounis, Tewfik
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In the present paper we propose a new estimator of entropy based on smooth estimators of quantile density. The consistency and asymptotic distribution of the proposed estimates are obtained. As a consequence, a new test of normality is proposed. A small power comparison is provided. A simulation study for the comparison, in terms of mean squared error, of all estimators under study is performed.
Evidence for the ring puckering vibration in trimethylene sulfide and several isotopic species
Creators: name: Duckett, John A.
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: QC 463 H9 D83 1973 Microfiche
subject: Infrared spectrometry
subject: Hydrocarbons - Spectra

description: Bibliography: p. 71-73.
Externe Technologieverwertung - Maßnahmen zur Stärkung der Innovationskraft Hamburger KMU
Creators: name: Herstatt, Cornelius
name: Buse, Stephan
name: Tietze, Frank
Publisher: name: TUHH Universitätsbibliothek
Year: 2007
Subjects: subject: Innovation
subject: Patentmanagement
subject: KMU, kleine und mittlere Unternehmen
subject: Small and Medium-sized Enterprises
subject: SME
subject: Klein- und Mittelbetrieb
subject: Patent

description: Aus d. Vorwort: Seit den 80er Jahren hat sich das Verhältnis von materiellen zu immateriellen Vermögensgegenständen in vielen Unternehmen nahezu umgekehrt. Eine Verschiebung der wertbildenden Faktoren hat dazu geführt, dass in vielen Unternehmen immaterielle Vermögensgegenstände über zwei Drittel der gesamten Vermögensgegenstände ausmachen. Im Gegensatz zu den materiellen Vermögensgegenständen werden die immateriellen Werte jedoch nur bedingt und unter ihren Möglichkeiten genutzt. Beispielsweise lassen sich Patente, die sich unter den immateriellen Vermögengenständen durch ein hohes Maß an Fungibilität und rechtlicher Sicherheit auszeichnen, nicht nur als Schutzrecht einsetzen, sondern darüber hinaus aktiv verwenden und auf internationalen Technologiemärkten handeln. Das große Potential an zusätzlicher Wertschöpfung mittels aktivem Patentmanagement wird deutlich beim Betrachten der Zahl der brach liegenden Patente: jedes vierte Patent in Deutschland ist ungenutzt, obwohl es sich bei der Mehrzahl dieser Patente um Ideen handelt, die reif sind zur Umsetzung in neue Produkte oder Dienstleistungen. Deutschen Unternehmen entgeht aufgrund der ausbleibenden Kommerzialisierung dieser Patente ein Vermögenszuwachs von schätzungsweise rund 8 Milliarden Euro. Unternehmen mit einer systematischen Patentstrategie sind nachweisbar erfolgreicher und profitabler als Unternehmen mit unsystematischen Patentaktivitäten. Eine systematische Patentverwaltung oder besser noch ein strategisches Intellectual Property Management mit externer Ausrichtung entwickelt sich zu einem wesentlichen Erfolgsfaktor für Unternehmen im internationalen Wettbewerb.
Anharmonic low energy ring vibrations: selected four- and six-membered rings and bicyclic compounds
Creators: name: Smithson, Tracy L.
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: QD 96 V53 S53 1979 Microfiche
subject: Vibrational spectra
subject: Bicyclic compounds

description: Bibliography: p. 179-182.
Combination of frequency-and time-domain characteristics of the fibrillatory waves for enhanced prediction of persistent atrial fibrillation recurrence after catheter ablation
Creators: name: Escribano, Pilar
name: Rodenas, Juan
name: Garcia, Manuel
name: Arias, Miguel A.
name: Hidalgo, Victor M.
name: Calero, Sofia
name: Rieta, Jose J.
name: Alcaraz, Raul
Publisher: name: arXiv
Year: 2024
Subjects: subject: Medical Physics (physics.med-ph)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Catheter ablation (CA) remains the cornerstone alternative to cardioversion for sinus rhythm (SR) restoration in patients with atrial fibrillation (AF). Unfortunately, despite the last methodological and technological advances, this procedure is not consistently effective in treating persistent AF.
Isomeric cross sections of fast-neutron induced reactions on $^{197}$Au
Creators: name: Avrigeanu, M.
name: Avrigeanu, V.
name: Diakaki, M.
name: Vlastou, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent accurate data obtained for the isomeric cross section of the $^{197}$Au$(n,2n)$ reaction provide a valuable opportunity to consider the question of the effective moment of inertia of the nucleus within a local consistent model analysis of all available reaction data for the $^{197}$Au target nucleus. Thus, a definite proof of a moment of inertia equal to that of the rigid--body has been obtained for $^{196}$Au nucleus while an inference of the half rigid--body value is suggested for the $^{194}$Ir nucleus. The usefulness of further measurements at incident energies up to $\ge$40 MeV has also been proved.
description: 5 pages, 5 figures
Spectroscopic investigations of the out-of-plane ring deformations in thietane and oxolane
Creators: name: Sont, Willem N.
Publisher: name: University of Calgary
Year: 1978
Subjects: subject: QD 96 M5 S65 1977 Microfiche
subject: Microwave spectroscopy
subject: Vibrational spectra
subject: Thietane - Spectra
subject: Oxolane spectra

description: Bibliography: p. 123-126.
Temperature-dependent transformation of the magnetic excitation spectrum on approaching superconductivity in Fe1-x (Ni/Cu)x Te0.5 Se0.5
Creators: name: Xu, Zhijun
name: Wen, Jinsheng
name: Zhao, Yang
name: Matsuda, Masaaki
name: Ku, Wei
name: Liu, Xuerong
name: Gu, Genda
name: Lee, D. -H.
name: Birgeneau, R. J.
name: Tranquada, J. M.
name: Xu, Guangyong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin excitations are one of the top candidates for mediating electron pairing in unconventional superconductors. Their coupling to superconductivity is evident in a large number of systems, by the observation of an abrupt redistribution of magnetic spectral weight at the superconducting transition temperature, Tc, for energies comparable to the superconducting gap. Here we report inelastic neutron scattering measurements on Fe-based superconductors, Fe1-x (Ni/Cu)x Te0.5 Se0.5, that emphasize an additional signature. The overall shape of the low energy magnetic dispersion changes from two incommensurate vertical columns at T >> Tc to a distinctly different U-shaped dispersion at low temperature. Importantly, this spectral reconstruction is apparent for temperature up to ~3Tc. If the magnetic excitations are involved in the pairing mechanism, their surprising modification on the approach to Tc demonstrates that strong interactions are involved.
What has more impact on relationship conflict : childhood maltreatment, psychopathy or emotional intelligence?
Creators: name: Sirkia, Teresa Diane
Publisher: name: University of British Columbia
Year: 2009

description: This study is the first to investigate the possible associations between four predictor variables: childhood maltreatment experiences, psychopathy, emotional intelligence (trait), emotional intelligence (ability), arid the outcome variable relationship conflict in a community-based sample. In addition to exploring the associations between the predictor variables and the outcome variable, this study explored the associations between the predictor variables and proposed a model predicting relationship conflict on the basis of the predictor variables. Participants were 197 non-random community-based males and females contacted through network sampling and online advertisements. Participants completed an online survey comprised of the following instruments, which measured the predictive variables: The Childhood Maltreatment Interview Schedule — Short Form (CMIS-SF; Briere, 1992) measured self-reported childhood maltreatment experiences, two of which formed the childhood maltreatment experiences variable (i.e., physical abuse and sexual abuse); the Self-Report Psychopathy Scale III (SRP-III; Williams, Nathanson, & Paulhus, 2003) measured self-reported psychopathy; the Bar-On Emotional Quotient Inventory (EQ-i; Bar-On, 1997) measured self-reported ability-based emotional intelligence; and twenty-eight streaming video clips, four for each of the seven universal emotional facial expressions (i.e., happy, sad, fear, surprise, anger, disgust, contempt) from the Micro Expression Training Tool (METT; Ekman, 2003-2006) used to measure ability based emotional intelligence. The total score of four subscales (e.g., psychological aggression, physical assault, sexual coercion, physical injury) from the Revised Conflict Tactics Scale (CTS2; Straus, Boney-McCoy, & Sugarman, 1996) comprised the outcome variable relationship conflict. Poisson regressions were completed and results indicated that psychopathy is the variable most predictive of relationship conflict in this sample. This is followed by childhood maltreatment experiences. Trait-based emotional intelligence gained significance as a predictor of relationship conflict but with a marginal effect size. Ability-based emotional intelligence and gender were not predictive in the model that took into account all the predictor variables. These findings and others are discussed in terms of their relevance in predicting relationship conflict in a community-based sample.
Metamorphism and structure of the Soards Creek area, British Columbia
Creators: name: Knitter, Clifford Charles
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: QE 475 A2 K55 1984
subject: Metamorphism (Geology) - British Columbia - Soards Creek area
subject: Geology, Structural
subject: Geology - British Columbia - Soards Creek area

description: Bibliography: p. 142-148.
description: Garnet amphibolite layers up to 300 metres thick occur with metasediments of the rlaydrian Horsethief Creek Group in the upper ampnibolite facies near Mica Creek, B.C .. Since the sillimanite isograd projects through the study area, it was possible to study both metapelitic and metabasic rocks under well characterized conditons. The contacts between the metabasites and metapelites are sharp and conformable to both the regional foliation and bedding. Due to mineralogy, thickness and phase chemistry data, the metabasites are inferred to be orthoamphibolites of basaltic composition. The sillimanite isograd was mapped in the metapelites by the first appearance of coarse grained sillimanite. Garnet-biotite temperatures, using Thompson's (1976) calibration, along the isograd range from 600° to 625°C. Pressures range from 6.0 kb to 6.7 kb. The range in pressures can be explained by the plunge of the third phase of deformation structures. PH0 approximately equals Ptotal in the sillimanite zone. The partitioning of iron and magnesium in the octahedral site in hornblende and the dodecahedral site in garnet is calibrated with to temperature in the metabasites. respect lnK~b-g = lnK;b-g The expression: 1979.5 T( K) and T. Oo71, best characterizes the relationship between The reaction: tr + 7/2an = 1213 py + 11/6 gr+ 9/2 qtz + H2 0, may account for the varying Ca-amphibole compositions encountered in the amphibolite facies o The reaction: tr + 3/4an = 23/4 diop + 3/4 py + 1314 qtz + H2 0, may account for the formation of clinopyroxene in the upper amphibolite facies in metabasic rocks, and is a reaction or isograd that could be easily mapped in the field. The study area has undergone three phases of deformation in superimposition. Phase 1 and 2 folds tend to be isoclinal with sharp narrow hinge zones. They have a style that is approximately similar. Phase 3 folds dominate the map pattern on Soards Ridge. These are minor folds that occur along the S.W. flank of the Mica Dam Antiform, a major third phase structure. The metamorphic culmination occurred after the cessation of the second phase of deformation, o2. The metamorphic grade dropped off to approximately biotite grade prior to o3. The sillimanite isogradic surface was deformed and folded during o3.
НОВЫЙ ПОДХОД К МАССОВОЙ ДЕГЕЛЬМИНТИЗАЦИИ ДЕТЕЙ ОТ ЭНТЕРОБИЗА
Creators: name: Махмудова, Л.Б.
Publisher: name: Zenodo
Year: 2023

description: В связи сохраняющейся высокой заболеваемостью гельминтозами в Республике Узбекистан большое внимание следует уделить массовой дегельминтизации, подходам к диагностике, своевременной терапии и особенно профилактическим мероприятиям включая первичную, вторичную и третичную профилактику [2, 4].
Gypsum scaling during reverse osmosis desalination − characterization and effects of natural organic matter
Creators: name: Benecke, Jan
Publisher: name: TUHH Universitätsbibliothek
Year: 2018
Subjects: subject: reverse osmosis
subject: membrane fouling
subject: membrane scaling
subject: natural organic matter
subject: gypsum
subject: crystallization
classificationCode: 620
subject: Ingenieurwissenschaften

description: Zur Sicherstellung regionaler Wasserbedürfnisse gewinnt die Entsalzung von Brack- und Salzwasser mittels Umkehrosmose (UO) zunehmend an Bedeutung. Eine wesentliche Einschränkung stellt dabei die Kristallisation schwerlöslicher Salze in der Nähe oder auf der Membranoberfläche (‚Scaling‘) insbesondere bei hohen Permeatausbeuten dar. Diese Dissertation charakterisiert das Scaling durch Gips (CaSO4∙2H2O) und die Wechselwirkungen mit natürlichem organischem Material (NOM) mithilfe von Cross-Flow UO- und gerührten Becherglasexperimenten. Die Ergebnisse zeigen, dass das Gips-Scaling und die damit verbundenen Leistungsverluste in der Anwesenheit von NOM verringert werden. Lediglich dicke NOM-Foulingschichten können das Scaling verstärken.
description: Desalination of brackish and salty water by reverse osmosis (RO) has been increasingly applied to address regional water shortages. Especially at high water recovery, the crystallization of sparingly soluble salts near or on the membrane surface (‘scaling’) is a serious limitation during RO operation. This dissertation characterizes scaling by gypsum (CaSO4∙2H2O) and its interactions with natural organic matter (NOM) in cross-flow RO and stirred beaker crystallization experiments. The results show that gypsum scaling and associated RO performance losses are alleviated in the presence of NOM unless thick NOM-fouling layers develop.
The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad Line Region in Mrk 50
Creators: name: Pancoast, Anna
name: Brewer, Brendon J.
name: Treu, Tommaso
name: Barth, Aaron J.
name: Bennert, Vardha N.
name: Canalizo, Gabriela
name: Filippenko, Alexei V.
name: Gates, Elinor L.
name: Greene, Jenny E.
name: Li, Weidong
name: Malkan, Matthew A.
name: Sand, David J.
name: Stern, Daniel
name: Woo, Jong-Hak
name: Assef, Roberto J.
name: Bae, Hyun-Jin
name: Buehler, Tabitha
name: Cenko, S. Bradley
name: Clubb, Kelsey I.
name: Cooper, Michael C.
name: Diamond-Stanic, Aleksandar M.
name: Hiner, Kyle D.
name: Hoenig, Sebastian F.
name: Joner, Michael D.
name: Kandrashoff, Michael T.
name: Laney, C. David
name: Lazarova, Mariana S.
name: Nierenberg, A. M.
name: Park, Dawoo
name: Silverman, Jeffrey M.
name: Son, Donghoon
name: Sonnenfeld, Alessandro
name: Thorman, Shawn J.
name: Tollerud, Erik J.
name: Walsh, Jonelle L.
name: Walters, Richard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present dynamical modeling of the broad line region (BLR) in the Seyfert 1 galaxy Mrk 50 using reverberation mapping data taken as part of the Lick AGN Monitoring Project (LAMP) 2011. We model the reverberation mapping data directly, constraining the geometry and kinematics of the BLR, as well as deriving a black hole mass estimate that does not depend on a normalizing factor or virial coefficient. We find that the geometry of the BLR in Mrk 50 is a nearly face-on thick disk, with a mean radius of 9.6(+1.2,-0.9) light days, a width of the BLR of 6.9(+1.2,-1.1) light days, and a disk opening angle of 25\pm10 degrees above the plane. We also constrain the inclination angle to be 9(+7,-5) degrees, close to face-on. Finally, the black hole mass of Mrk 50 is inferred to be log10(M(BH)/Msun) = 7.57(+0.44,-0.27). By comparison to the virial black hole mass estimate from traditional reverberation mapping analysis, we find the normalizing constant (virial coefficient) to be log10(f) = 0.78(+0.44,-0.27), consistent with the commonly adopted mean value of 0.74 based on aligning the M(BH)-σ* relation for AGN and quiescent galaxies. While our dynamical model includes the possibility of a net inflow or outflow in the BLR, we cannot distinguish between these two scenarios.
description: Accepted for publication in ApJ. 8 pages, 6 figures
The Dependence of the Neutrino Mechanism of Core-Collapse Supernovae on the Equation of State
Creators: name: Couch, Sean M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the dependence of the delayed neutrino-heating mechanism for core-collapse supernovae on the equation of state. Using a simplified treatment of the neutrino physics with a parameterized neutrino luminosity, we explore the relationship between explosion time, mass accretion rate, and neutrino luminosity for a 15 Msun progenitor in 1D and 2D. We test three different equations of state commonly used in core-collapse simulations: the models of Lattimer & Swesty (1991) with incompressibility of 180 MeV and 220 MeV, and the model of Shen et al. (1998), in order of increasing stiffness. We find that for a given neutrino luminosity the time after bounce until explosion increases with the stiffness of the equation of state: the Lattimer & Swesty EOS explode more easily than that of Shen et al. We find this holds in both 1D and 2D, while for all models explosions are obtained more easily in 2D than in 1D. We also discuss the relevance of approximate instability criteria to realistic simulations.
description: 12 pages, 12 figures. Submitted to ApJ
Luminosities of recycled radio pulsars in globular clusters
Creators: name: Bagchi, Manjari
name: Lorimer, Duncan R.
name: Chennamangalam, Jayanth
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using Monte Carlo simulations, we model the luminosity distribution of recycled pulsars in globular clusters as the brighter, observable part of an intrinsic distribution and find that the observed luminosities can be reproduced using either log-normal or power-law distributions as the underlying luminosity function. For both distributions, a wide range of model parameters provide an acceptable match to the observed sample, with the log-normal function providing statistically better agreement in general than the power-law models. Moreover, the power-law models predict a parent population size that is a factor of between two and ten times higher than for the log-normal models. We note that the log-normal luminosity distribution found for the normal pulsar population by Faucher-Giguère and Kaspi is consistent with the observed luminosities of globular cluster pulsars. For Terzan~5, our simulations show that the sample of detectable radio pulsars, and the diffuse radio flux measurement, can be explained using the log-normal luminosity law with a parent population of $\sim 150$ pulsars. Measurements of diffuse gamma-ray fluxes for several clusters can be explained by both power-law and log-normal models, with the log-normal distributions again providing a better match in general. In contrast to previous studies, we do not find any strong evidence for a correlation between the number of pulsars inferred in globular clusters and globular cluster parameters including metallicity and stellar encounter rate.
description: Accepted for publication in MNRAS; 14 pages, 10 figures and 5 tables
Conservative Subgroup Separability For Surfaces With Boundary
Creators: name: Baker, Mark D.
name: Cooper, Daryl
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M05 (Primary) 20E26, 57M10, 57N05 (Secondary)

description: If F is a surface with boundary, then a finitely generated subgroup without peripheral elements of G = π_1(F) can be separated from finitely many other elements of G by a finite index subgroup of G corresponding to a finite cover F' with the same number of boundary components as F .
Übersicht über die Probleme und die Rechenverfahren beim Stoppvermögen von Schiffen
Creators: name: Kranert, Klaus
Publisher: name: TUHH Universitätsbibliothek
Year: 1964
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Übersicht über die Probleme und die Rechenverfahren beim Stoppvermögen von Schiffen
Low-grade metamorphism of proterozoic rocks from the Esplanade Range, British Columbia
Creators: name: Jones, Jonathan W.
Publisher: name: University of Calgary
Year: 1970
Subjects: subject: QE 475 J64 1969
subject: Rocks, Metamorphic
subject: Petrology - British Columbia - Esplanade Range

description: Bibliography: p. 95-100.
description: The lithology and petrography of the Horsethief Creek Group of the Esplanade Range and adjacent areas is discussed. The mineral assemblages from zones lower in metamorphic grade than the almandine zone are described and certain mineral compositions determined. The most significant mineral assemblages present are: 1) Muscovite - chlorite - quartz 2A Muscovite - chlorite - quartz 3A Muscovite - chlorite 4) Muscovite - chlorite - quartz - paragonite 5) Muscovite - chlorite - quartz - paragonite - chloritoid 6) Muscovite - chlorite - quartz - albite - epidote 7) Doiomite - muscovite - chlorite - quartz 8) Muscovite - chlorite - quartz - siderite These assemblages are indicative of greenschist facies metamorphism and are characteristic of the biotite zone. Biotite is very rare and its occurence is strongly controlled by bulk chemical composition. The feldspar in feldspathic assemblages is almost entirely albite. Potassium feldspar (microcline) was identified in one sample only and it may be that some plagioclase is albitized potassium feldspar. X-ray data indicate that the feldspar has a low structural state. From x-ray data, chemical analysis of a muscovite-rich sample, and some refractive index measurements, it is concluded that the potassium micas are phengitic. X-ray data suggests that the Al content of of chlorites from various mineral assemblages does not vary much, and that the Fe content of the chlorites is consistently high. Physical conditions during metamorphism are determined and the relative importance of bulk chemical composition and physical conditions discussed. A temperature of approximately 400°C during metamorphism is suggested on the basis of the Mg content of calcite which coexists with dolomite. Load pressure during metamorphism is estimated from structural considerations to have been in the range 2.7 kb to 5.5 kb. Estimates of fo2, fS2, and fco2 are made by comparing the mineral ass­emblages present to experimentally studied systems. Graphite is a common and extremely important phase.
An upper limit to the variation in the fundamental constants at redshift z = 5.2
Creators: name: Levshakov, S. A.
name: Combes, F.
name: Boone, F.
name: Agafonova, I. I.
name: Reimers, D.
name: Kozlov, M. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Aims. We constrain a hypothetical variation in the fundamental physical constants over the course of cosmic time. Methods. We use unique observations of the CO(7-6) rotational line and the [CI] 3P_2 - 3P_1 fine-structure line towards a lensed galaxy at redshift z = 5.2 to constrain temporal variations in the constant F = alpha^2/mu, where mu is the electron-to-proton mass ratio and alpha is the fine-structure constant. The relative change in F between z = 0 and z = 5.2, dFF = (F_obs - F_lab)/F_lab, is estimated from the radial velocity offset, dV = V_rot - V_fs, between the rotational transitions in carbon monoxide and the fine-structure transition in atomic carbon. Results. We find a conservative value dV = 1 +/- 5 km/s (1sigma C.L.), which when interpreted in terms of dFF gives dFF < 2x10^-5. Independent methods restrict the mu-variations at the level of dmm < 1x10^-7 at z = 0.7 (look-back time t_z0.7 = 6.4 Gyr). Assuming that temporal variations in mu, if any, are linear, this leads to an upper limit on dmm < 2x10^-7 at z = 5.2 (t_z5.2 = 12.9 Gyr). From both constraints on dFF and dmm, one obtains for the relative change in alpha the estimate daa < 8x10^-6, which is at present the tightest limit on daa at early cosmological epochs.
description: 4 pages, 4 figures. Accepted for publication in A&A Letters
A Strong Invariance Theorem of the Tail Empirical Copula Processes
Creators: name: Bouzebda, Salim
name: Zari, Tarek
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: Applications (stat.AP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study the behavior of bivariate empirical copula process $\mathbb{G}_n(\cdot,\cdot)$ on pavements $[0,k_n/n]^2$ of $[0,1]^2,$ where $k_n$ is a sequence of positive constants fulfilling some conditions. We provide a upper bound for the strong approximation of $\mathbb{G}_n(\cdot,\cdot)$ by a Gaussian process when $k_n/n \searrow γ$ as $n\rightarrow \infty,$ where $0 \leq γ\leq 1.$
Approach to consider welding residual stresses in fatigue analysis using numerical simulations
Creators: name: Friedrich, Nils
Publisher: name: TUHH Universitätsbibliothek
Year: 2020
Subjects: subject: welding simulation
subject: initiation of macroscopic cracks
subject: digital image correlation
subject: multilayer K-butt weld
subject: longitudinal stiffener
subject: stress ratio
classificationCode: 600
subject: Technik

description: Der Einfluss von Schweißeigenspannungen auf die Schwingfestigkeit wird mittels numerischer Simulationen und experimenteller Versuche untersucht. Mithilfe numerischer Simulationen werden Schweißeigenspannungen und Spannungen unter Last ermittelt. In Schwingfestigkeitsversuchen an zwei Schweißgeometrien wird der Eigenspannungseinfluss auf den makroskopischen Anriss, Rissfortschritt und die Gesamtlebensdauer ermittelt. Aus der Korrelation der Versuchsergebnisse und der berechneten Spannungen wird ein Ansatz zur Berücksichtigung des Eigenspannungseinflusses auf die Schwingfestigkeit entwickelt.
description: Although it is known that residual stresses may influence the fatigue strength of welded structures, they are usually not included explicitly in fatigue assessments. In this thesis the influence of welding residual stresses on fatigue is investigated using numerical simulations and experimental tests to develop an approach to consider welding residual stresses in fatigue analysis. A numerical welding simulation approach using a prescribed temperature heat source is described and the influence of various simulation parameters on the resulting residual stresses is assessed. The simulations are used to design small-scale specimens containing a multilayer K-butt weld and a longitudinal stiffener with tensile transversal residual stresses at the weld toe. Residual stresses are measured by X-ray diffraction and hole drilling on both specimen geometries and the simulation results are verified. Fatigue tests at different load ratios are conducted on both specimen geometries. The initiation of macroscopic cracks is detected using digital image correlation. The influence on crack initiation and propagation show differences for both investigated weld geometries. A correlation between the fatigue test results and the calculated stresses is found. Based on these findings an approach to predict S-N curves depending on the residual stress condition and stress ratio is developed. The approach is based on the presented numerical welding simulations and allows to consider the influence of welding residual stresses in fatigue analysis.
Structural and petrological studies in the Shuswap metamorphic complex near Revelstoke, British Columbia
Creators: name: Hill, Roderic P.
Publisher: name: University of Calgary
Year: 1975
Subjects: subject: QE 446 H54 1975 Microfiche
subject: Petrology - British Columbia - Revelstoke
subject: Rocks, Metamorphic
subject: Geology - British Columbia - Revelstoke

description: Bibliography: p. 132-140.
Strain enhanced electron cooling in a degenerately doped semiconductor
Creators: name: Prest, M. J.
name: Muhonen, J. T.
name: Prunnila, M.
name: Gunnarsson, D.
name: Shah, V. A.
name: Richardson-Bullock, J. S.
name: Dobbie, A.
name: Myronov, M.
name: Morris, R. J. H.
name: Whall, T. E.
name: Parker, E. H. C.
name: Leadley, D. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Enhanced electron cooling is demonstrated in a strained-silicon/superconductor tunnel junction refrigerator of volume 40 um^3. The electron temperature is reduced from 300 mK to 174 mK, with the enhancement over an unstrained silicon control (300 mK to 258 mK) being attributed to the smaller electron-phonon coupling in the strained case. Modeling and the resulting predictions of silicon-based cooler performance are presented. Further reductions in the minimum temperature are expected if the junction sub-gap leakage and tunnel resistance can be reduced. However, if only tunnel resistance is reduced, Joule heating is predicted to dominate.
description: 3 pages, 5 figures
Singlet Boson in Supersymmetric Model as a Mimic of the Standard Model Higgs at the LHC
Creators: name: Asano, Masaki
name: Moroi, Takeo
name: Yokozaki, Norimi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the gauge singlet scalar boson in low-energy supersymmetric model may behave as the standard model (SM) Higgs boson if the singlet couples to (heavy) vector-like colored particles. In this case, the SM-Higgs-like signal at the LHC can be mimicked by the singlet production process for wide range of the singlet mass.
description: 10 pages, 4 figures
Common origin of the two types of magnetic fluctuations in iron chalcogenides
Creators: name: Chi, Songxue
name: Rodriguez-Rivera, J. A.
name: Lynn, J. W.
name: Zhang, Chenglin
name: Phelan, D.
name: Singh, D. K.
name: Paul, R.
name: Dai, Pengcheng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use inelastic neutron scattering to study the low energy spin excitations in moderately doped non-superconducting Fe$_{1.01}$Te$_{0.72}$Se$_{0.28}$. The spin excitations in this system contain components near (0.5,0,0) and (0.5,0.5,0) in a-b plane reciprocal lattice units using tetragonal unit cell notation (a=b=3.772 Åand c=6.061 Å). At low energies the scattering is centered around (0.5,0,0). With increasing energy, the spectral weight of low energy spin excitations centered around (0.5,0,0) abruptly shifts around 3 meV to the incommensurate spin excitations centered around (0.5,0.5,0). However both types of spin fluctuations exhibit the identical temperature dependence. These results indicate that the (0.5,0,0) type spin excitations and the incommensurate excitations around the (0.5,0.5,0) position have a common origin and both must be taken into account to understand the nature of magnetism and superconducting pairing in the iron chalcogenides.
description: 7 pages 7 figures
Chloritoid-bearing pelitic rocks of the Horsethief Creek group, southeastern British Columbia
Creators: name: Cruikshank, Roy Douglas
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: QE 475 A2 C78 1976 Microfiche
subject: Rocks, Metamorphic
subject: Petrology - British Columbia

description: Bibliography: p. 125-131.
VLBI for Gravity Probe B. III. A Limit on the Proper Motion of the "Core" of the Quasar 3C 454.3
Creators: name: Bartel, N.
name: Bietenholz, M. F.
name: Lebach, D. E.
name: Lederman, J. I.
name: Petrov, L.
name: Ransom, R. R.
name: Ratner, M. I.
name: Shapiro, I. I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We made VLBI observations at 8.4 GHz between 1997 and 2005 to estimate the coordinates of the "core" component of the superluminal quasar, 3C 454.3, the ultimate reference point in the distant universe for the NASA/Stanford Gyroscope Relativity Mission, Gravity Probe B. These coordinates are determined relative to those of the brightness peaks of two other compact extragalactic sources, B2250+194 and B2252+172, nearby on the sky, and within a celestial reference frame (CRF), defined by a large suite of compact extragalactic radio sources, and nearly identical to the International Celestial Reference Frame 2 (ICRF2). We find that B2250+194 and B2252+172 are stationary relative to each other, and also in the CRF, to within 1-sigma upper limits of 15 and 30 micro-arcsec/yr in RA and decl., respectively. The core of 3C 454.3 appears to jitter in its position along the jet direction over ~0.2 mas, likely due to activity close to the putative supermassive black hole nearby, but on average is stationary in the CRF within 1-sigma upper limits on its proper motion of 39 micro-arcsec/yr (1.0c) and 30 micro-arcsec/yr (0.8c) in RA and decl., respectively, for the period 2002 - 2005. Our corresponding limit over the longer interval, 1998 - 2005, of more importance to GP-B, is 46 and 56 micro-arcsec/yr in RA and decl., respectively. Some of 3C 454.3's jet components show significantly superluminal motion with speeds of up to ~200 micro-arcsec/yr or 5c in the CRF. The core of 3C 454.3 thus provides for Gravity Probe B a sufficiently stable reference in the distant universe.
description: Accepted for publication in the Astrophysical Journal Supplement Series
Spherically Symmetric Inflation
Creators: name: Perez, R. S.
name: Pinto-Neto, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It is shown in this letter that in the framework of an inhomogeneous geometry and a massive non self-interacting scalar field with spherical symmetry, one needs a homogeneous patch bigger than a dizaine of horizons in order to start inflation. The results are completly independent of initial conditions on the spatial distribution of the scalar field. The initial condition on the metric parameters are also justified. This is a generalization of the results obtained in Ref.[1], showing that their conclusions are rather robust.
description: Latex file, 4 pages, no figures