cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Language, home, and belonging in migratory contexts - the case of Camfranglais
Creators: name: Mbassi Manga, Constance
Publisher: name: Lancaster University
Year: 2022

description: Urban hybrid linguistic registers (often called ‘youth languages’) have been researched for over 30 years (Simo-Souop, 2009; Harris, 2006 etc.). Camfranglais, which combines elements of French, English, Pidgin English and Cameroonian vernaculars, is no exception. Identified (and named) in the 1980s as an in-group language form used primarily to exclude adults, Camfranglais has aroused substantial sociolinguistic interest mainly in relation to the urban youth in Yaoundé, Cameroon, a country with two official languages (French and English) and 250+ vernaculars (De Féral, 2004; Lobe Ewane, 1989). Over the last twenty years, Camfranglais spread beyond the Cameroon-based youth. Accordingly, more recently, research started integrating attention to its use by adult Cameroonians in migratory contexts (Telep, 2014; Machetti & Siebetcheu, 2013), at a time when the diverse ethnic composition of major Western cities is thought to have led to an increased diversification of linguistic practices. Using a Critical Discourse Analysis (CDA) perspective, combined with a Linguistic Ethnographic lens, this thesis draws out an understanding of the role and function(s) of Camfranglais from Skype interviews of a group of adult Cameroonians living in Europe and the US (against the aforementioned backdrop), and chats from a Facebook-based group dedicated to Camfranglais. The analysis of the transcripts shows that both groups engage with Camfranglais, and no longer use the register to exclude non-speakers. In the participants’ accounts of the place and value of language in their life trajectories, and in the Facebook chats, the presence of markers of identity, home and belonging reveals that Camfranglais creates a sense of closeness and community between speakers, reinforcing the feeling that they belong. The study highlights Camfranglais’ symbolic value and its role as an expression of a diasporic Cameroonian identity, a coping mechanism useful for negotiations of home and belonging in online and offline communities of practice.
Einfluss von Näpfchentexturen auf die Reibung von Stahl 100Cr6 und SSiC im einsinnigen oder reversierenden, mediengeschmierten Gleitkontakt gegen Saphir oder SSiC-Keramik
Creators: name: Mann, Mario
Publisher: name: Karlsruhe
Year: 2013

description: Es wurde der Einfluss näpfchenförmiger Mikrotexturen auf das Reibungsverhalten im flächigen, einsinnigen oder reversierenden, mediengeschmierten Gleitkontakt untersucht. Die Texturen wurden lasergestützt in die Wirkflächen von Stahl/Saphir-, Stahl/SSiC- und SSiC/SSiC-Paarungen eingebracht. Abhängig von der Art und Viskosität des Schmiermittels sowie unterschiedlichen Belastungsparametern wurde durch den Einsatz der Mikrotexturen eine teils deutliche Verringerung der Reibungszahl erzielt.
Have you ever thought about working in a library?
Creators: name: Murphy, Frances
Publisher: name: University of Manchester
Year: 2022
Subjects: Other education not elsewhere classified

description: In the Customer Service Team, we have reviewed our recruitment processes with an aim to encourage diversity and attract candidates from a broad range of backgrounds to apply. A key part of this is our Open Information Sessions for prospective candidates. You will learn about what we wanted to achieve, what we did, how successful the sessions were and where we go next.
Essay on empirical economics
Creators: name: Ferra, Emi
Publisher: name: IMT Alti Studi Lucca
Year: 2017
Subjects: HB Economic Theory

description: Whether interested or not, economy has always influenced everybody's life and daily choices. Our way of living and our important life decisions, for most of us, are framed not only by each own preference, but also and foremost by economic laws and budget constraints. Therefore, starting from real life, my interest for empirical economics has grown in different and complementary topics, ranging from consumer choices and asymmetric information in a developed world to analyzing developing countries and international trade in terms of value chains. My aim is that of connecting economic theories with empirical evidences. In fact, chapter two is a direct connection between people's health attitude and principal-agent theory which analysis follows a recent experiment that I realized in the USA. My goal is also that of showing the economic mechanism in both developed and developing countries therefore chapter three is placed in Pakistan and analyses parental level of education on female student religiosity. As a conclusion, the last chapter interests a deep economic analysis of international trade among different countries and cultures, where developed and developing countries collaborate along the value chain by taking advantage from each other in order to be able to follow the path of a common development process.
Empowering Participation Within Structures of Dependency
Creators: name: Gautam, Aakash
name: Tatar, Deborah
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Participatory Design (PD) seeks political change to support people's democratic control over processes, solutions, and, in general, matters of concern to them. A particular challenge remains in supporting vulnerable groups to gain power and control when they are dependent on organizations and external structures. We reflect on our five-year engagement with survivors of sex trafficking in Nepal and an anti-trafficking organization that supports the survivors. Arguing that the prevalence of deficit perspective in the setting promotes dependency and robs the survivors' agency, we sought to bring change by exploring possibilities based on the survivors' existing assets. Three configurations illuminate how our design decisions and collective exploration operate to empower participation while attending to the substantial power implicitly and explicitly manifest in existing structures. We highlight the challenges we faced, uncovering actions that PD practitioners can take, including an emphasis on collaborative entanglements, attending to contingent factors, and encouraging provisional collectives.
description: 12 pages, 3 figures, 1 table. In Participatory Design Conference 2022: Volume 1 (pp. 75-86)
Post-Secondary Deaf or Hard of Hearing Students’ Experiences of Fatigue
Creators: Shiva Zarezadeh Kheibari
Publisher: name: University of Alberta Library
Year: 2022

Fatigue can have a long-lasting impact on psychosocial, cognitive, and educational outcomes for students who are Deaf or hard of hearing (D/HH). Unfortunately, fatigue itself and the importance of educational supports to minimize its impact on D/HH students is poorly understood by many educational stakeholders. Additionally, students often struggle to recognize fatigue symptoms, internalize the causes, and have limited coping strategies. The purpose of this study was to explore the experiences of post-secondary D/HH students (LSL and ASL users) about fatigue in educational and social settings.

Utilizing purposeful sampling, the present study was conducted through focus group interviews with three post-secondary students from MacEwan University who identify as D/HH (with hearing levels ranging from moderate, moderate-to-severe, to profound). Students were asked about their fatigue experience, impacts on their education, fatigue triggers, coping mechanisms. The aim of this study was to capture the unique experiences of D/HH students and move beyond their description. Thus, I used Strauss and Corbin’s (1998) systematic procedures approach to analyze data and situate my study themes.

Four themes emerged from the interview and focus group transcripts: (a) fatigue contributors (causal conditions and situational determinants that fatigue arises from, including environment, educational task characteristics, and assistive hearing devices); (b) fatigue consequences (adverse impacts of fatigue on learning, relationships with others, and leisure time after school); (c) fatigue manifestations (fatigue symptoms, including physical, cognitive, and social-emotional); and (d) coping with fatigue (actions and strategies to mitigate fatigue). Findings also indicated that there is not enough awareness among educators and students themselves about fatigue contributors and manifestations, resulting in more adverse consequences. Thus, improving awareness of fatigue for D/HH students and others in their educational and social networks will help in identifying and managing fatigue. Findings from this study and implications for teachers, researchers, parents, and students themselves were discussed.

This study provides unique insight and knowledge about the perceptions and experiences related to fatigue through the D/HH students’ point of view, particularly for post-secondary educational settings and retrospectively on participants' K-12 experiences. In the future, these results can be used and published by students, teachers, parents, and specialists in the context of Deaf education.
Four essays on hidden risks into the global financial architecture
Creators: name: Gianfagna, Laura
Publisher: name: IMT Alti Studi Lucca
Year: 2017
Subjects: HB Economic Theory

description: The doctoral dissertation of Laura Gianfagna, PhD Candidate
 in Economics at IMT School for Advanced Studies Lucca,
 is submitted at IMT School for Advanced Studies Lucca. The
 original research thesis studies unsolicited weak points of the
 current Global Financial Architecture and unknown sources
 of financial contagion. The dissertation provides policy advice
 and innovative methodologies to improve the current
 financial supervisory monitoring.
 The main topics covered are credit risk and financial risk.
 On the credit risk side, the author addresses two issues: a
 lack of regulatory supervision for Multilateral Development
 Banks and a model risk that the economic capital calculation
 for portfolio credit risk and the regulatory capital calculation
 for counterparty credit risk have in common. On the financial
 risk side, the thesis estimates a significant impact of corporate
 control on stock market volatility. The empirical investigation
 confers the right to exist to an entity acting on financial
 market prices through the property channel, in parallel to
 business groups. An innovative methodology is then applied
 to the Interest Rate Swap market to detect correlation and
 co-movements among its subclasses aggregated by contractual
 characteristics. All the results contribute to the research
 literature on early warning triggers for systemic risk.
title: Μελέτη συγχρονισμού των Qubit: εκδήλωση κβαντικών φαινομένων
title: Study of synchronization of Qubits: manifestation of quantum effects
Creators: name: Πολιδης Πετρος
Publisher: name: Technical University of Crete
Year: 2020

description: This work deals with the phenomenon of synchronization, (a well-known effect in the field of nonlinearly interacting multiparticle classical systems formulated by the so called Kuramodo model) , and the question of its possible interrelation with quantum effects, addressed in the minimal context of two interacting qubits. The aim of the work is to review available recent research results both in the fields of classical synchronization and multi-qubit systems. This shapes the form of the thesis as a comprehensive review of some of the available analytic-numerical results, methods and concepts, regarding the question of the synchronization effect in the presence of pair of qubits. In outline the content of the thesis is as follows: a pair of special qubits each described by a 2D complex vector with a simple azimuthal angle freedom (the equatorial qubit), are employed. A sequence of quantum gate operators, codified in the form of a quantum circuit, is utilized to show that the temporal dynamics of the qubit state vectors is governed by the Kuramoto models via their azimuthal angles. A matrix observable, the “quantum synchronization” operator, and the “quantum dispersion” observable are introduced. These observables combined with solutions of the Kuramoto driven state vectors for the pair of interacting equatorial qubits, are able to quantify the quantum effects of the classical synchronization measures. The resulting ‘quantum mean value’ and the quantum dispersion value of the qubit-qubit synchronization is studied by numerically plotting their variation for four important special cases: the temporally varying, or temporally constant (stationary), qubit states vectors, as well as the un-correlated pair of equatorial qubits described by pure states, and the uncorrelated pair of thermal equatorial qubits described by mixed states; as well as possible combinations of these special cases. In accordance to the available results of qubit-synchronization it is confirmed that the two-body synchronization survives in the qubit context. This is manifested by the non-zero value of the “quantum synchronization” operator, and its non-zero but bounded and asymptotically constant dispersion (quantum uncertainty).
Antagonism of Host Interferon Response by Emerging Positive-Strand RNA Viruses
Creators: Ishida, Ray
Publisher: name: University of Alberta Library
Year: 2022

Positive strand RNA ((+)ssRNA) viruses are some of the most important pathogens that impact the public health, economy, and quality of life. The interferon (IFN) response plays a critical role in innate immune response targeting (+)ssRNA viruses, which in turn have evolved various strategies to circumvent this response in order to establish infection. In this thesis, I investigated how two emerging (+)ssRNA viruses, Mayaro virus (MAYV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), affect the host IFN response and determined the mechanisms by which specific viral proteins antagonize this pathway.

MAYV infection was found to significantly impair the induction phase of the IFN response and mapping studies revealed that non-structural protein 2 (NSP2) was responsible for this effect. Expression of MAYV NSP2 depleted DNA-directed RNA polymerase II subunit A (Rpb1) and transcription initiation factor II E subunit 2 (TFIIE2) which are indispensable for host mRNA synthesis. This indicated that NSP2-mediated transcriptional shutoff was the primary mechanism by which MAYV blocks IFN induction.

Induction of IFNs and IFN-stimulated genes (ISGs) were also blocked during SARS-CoV- 2 infection. The viral proteins NSP1 and nucleocapsid (N) both blocked the IFN response indicating that SARS-CoV-2 employs multiple mechanisms to subvert the host antiviral defenses. Translational shutoff by NSP1 resulted in depletion of key IFN signaling proteins, such as tyrosine kinase 2 (Tyk2) and signal transducer and activator of transcription 2 (STAT2).

Together, this research provides new insights into the mechanisms by which two recently emerged (+)ssRNA viruses antagonize the host IFN response. Current findings should be taken into account when developing and administering antiviral therapeutics.
Emerging Data Cultures: Writing the Datafied Subject in Whitman and Melville
Creators: Miya, Chelsea
Publisher: name: University of Alberta Library
Year: 2022

This dissertation reads the informational ethos of authors Herman Melville and Walt Whitman through the lens of critical data studies and surveillance studies, examining how emerging data cultures in the nineteenth century gave rise to new subjectivities. The study situates these authors at a critical juncture in the ascendence of data: when the small-scale grassroots data activism carried out by reform-era citizen scientists began to be displaced by the large-scale, professionalized and bureaucratized information gathering practices of the state. The political and cultural tensions of this shift are captured in Whitman’s journalism and early versions of Leaves of Grass, as well as Melville’s south seas novels and Moby-Dick. In placing these literary works in conversation with newspaper reports, census tracts, maritime employment contracts, and whaling charts, the study describes the ways in which subjects have historically been constituted as data, in turn, and how those subjects resisted and remade those datafying systems. The study, moreover, draws attention to the role of art and literature in the data assemblage, not only in the dissemination and interpretation of data, but in the construction and dismantling of the mythologies that surround and uphold these systems, including presumptions of neutrality and objectivity.
Automation and Optimization of Working Speed and Depth in Agricultural Soil Tillage with a Model Predictive Control based on Machine Learning
Creators: name: Becker, Simon
name: Kazenwadel, Benjamin
name: Geimer, Marcus
Publisher: name: VDI Verlag
Year: 2022
Subjects: Machine Learning
Automation
Agricultural Soil Tillage
Model Predictive Control

description: While facing environmental challenges due to climate change, the need for optimization and automation of agricultural tasks is increasing. Furthermore, costs and the lack of qualified personnel require efficient and highly automated control systems for agricultural machinery. Therefore, this work addresses these challenges by optimizing the working speed of a tractor and soil tillage implement combination to maintain efficient operating points during high power demands. A system was developed that predicts a suitable working speed based on a draft force and traction model in combination with the usage of a neural network for fuel rate prediction. The machine operator is able to customize optimization parameters such as fuel efficiency, performance or total costs depending on the individual needs and situation. These parameters lead to a reward function to value the machines state. Based on these objectives the network is able to predict the system state for various potential target speeds and evaluate their optimization parameters to select the most promising target speed. This target speed gets received by the tractor and leads to a new machine state. The fuel rate prediction network is trained on previously collected training data. Using different methods, for example transfer learning, the network can be adapted easily to different sizes and types of tractors. As the draft force models are based on equations, they can be changed to adapt to turning and no-turning soil tillage. To maintain a sufficient working quality and simplify online parametrization of draft force requirements, the implement working depth is automatically adjusted based on active Lidar measurements. The adjustments take the working conditions and agricultural requirements into account. The system was validated during field measurements on different locations with various customized optimization parameters. The results show a suitable reaction to changing operating conditions.
SIENNA D4.1: State-of-the-art Review: Artificial Intelligence and robotics
Creators: name: Jansen, Philip
name: Stearns Broadhead
name: Rodrigues, Rowena
name: Wright, David
name: Brey, Philip
name: Fox, Alice
name: Wang, Ning
Publisher: name: Zenodo
Year: 2019
Subjects: Artificial intelligence
AI
robotics
state of the art review
socio-economic impact assessment
environmental impacts
future applications
vulnerability

description: This report describes the current state of the art in the fields of artificial intelligence (AI) and robotics. In this report, we establish definitions and demarcations for both fields that will be used in subsequent SIENNA research on AI and robotics. The report discusses the fields in terms of their backgrounds, positions, challenges, and present and expected applications. This report includes a socio-economic impact assessment (SEIA) that examines the current and expected impacts of AI and robotics.
Hypochaeris facchiniana Ambrosi
Creators: name: Info Flora
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Hypochaeris
Hypochaeris facchiniana

description: Hypochaeris facchiniana Ambrosi
Art ISFS: 211800 Checklist: 1024200 Asteraceae Hypochaeris Hypochaeris facchiniana Ambrosi
Bestimmungsschlüssel
ZusammenfassungKEINE ANGABE
Ökologie
Lebensraum Lebensraumnach Delarze & al. 2015
KEINE ANGABE
Ökologische Zeigerwerte nach Landolt & al. (2010)
BodenfaktorenKlimafaktorenSalztoleranzFeuchtezahl F--Lichtzahl L--Salzzeichen--Reaktionszahl R--Temperaturzahl T--Nährstoffzahl N--Kontinentalitätszahl K--
Nomenklatur
Gültiger Name (Checklist 2017):Hypochaeris facchinianaAmbrosi
Volksname
Deutscher Name: -- Nom français: -- Nome italiano: --
Übereinstimmung mit anderen Referenzwerken
RelationNomReferenzwerkeNo=Hypochaeris facchiniana AmbrosiChecklist 2017211800=Hypochaeris facchiniana AmbrosiIndex synonymique 1996211800=Hypochaeris facchiniana AmbrosiLandolt 19773254=Hypochaeris facchiniana AmbrosiSISF/ISFS 2211800
= Taxon stimmt mit akzeptiertem Taxon überein (Checklist 2017)  Taxon enthält (neben anderen) auch das akzeptierte Taxon (Checklist 2017)
Status Indigenat: -
Liste der gefährdeten Pflanzen IUCN(nach Walter & Gillett 1997): Nein
description: Published as part of Info Flora, 2021,
the_manuscript (1).docx
Creators: name: Abdellah, Sammy
Publisher: name: figshare
Year: 2020
Subjects: subject: 110506 Orthodontics and Dentofacial Orthopaedics
subject: FOS: Clinical medicine

description: Great advances utilizing TADs have now made treatment more viable from an orthopedic standpoint. However, there is still no current non-surgical treatment to expand the mandible on a skeletal level. We sought to explain the mechanisms that mediate mandibular transverse growth. Here we prove that the mediating factor of growth is due to the masseter muscle, more precisely the forces the masseter muscle exerts on the mandible, we denote that the expansion is regulated once proper occlusion is met via the fossa-cusp relationship (FCR) of the molars. The mechanism thereof suggests the possibility of inducing skeletal expansion of the mandible via maxillary expansion on patients with a non-deficient maxilla in the transverse dimension.
Integrating Geomechanics in SAGD Reservoir Surveillance Programs
Creators: Arias Buitrago, Juan Alejandro
Publisher: name: University of Alberta Library
Year: 2022

Reservoir and geomechanical monitoring programs are critical to ensuring operational safety in thermal projects. Although many technologies have been applied to monitor thermal operations, most of them aim to measure just a few parameters, such as pressure, temperature, and surface deformation. While monitoring may aid in understanding phenomena in the subsurface, the data obtained from these observations is significantly divergent from what current models predict. This discrepancy is mainly attributable to the inherent uncertainty in the modeling assumptions and in the input parameters. While reservoir and geomechanical monitoring are not sufficient to inform our understanding of the subsurface's behaviour, they are valuable tools for gaining understanding of the actual behaviour.

Monitoring is a widely used technique in geotechnical projects, where various methodologies and approaches have been proposed to optimize the program's design. These approaches seek to answer fundamental questions such as where to place the instruments, which devices to select, and how the model and the design of the project may be improved through the use of the monitoring results. The present research incorporated knowledge from geotechnical engineering into reservoir engineering to identify an appropriate methodology rooted in engineering principles, which can be followed in thermal operations monitoring planning and deployment. The proposed methodology is logic-based and helps maximize the value of monitoring programs, thereby safely increasing bitumen production in thermal projects.

Coupled geomechanical and flow simulations were performed using a 3D high-resolution geomechanical model to evaluate the response of subsurface to SAGD. Typical monitored parameters were analyzed from different simulation cases to predict monitored results helping design optimal monitoring programs for SAGD. Finally, a case study was used to demonstrate that designing monitoring programs based on prediction results in cost-effective monitoring programs.
Global and Local Features through Gaussian Mixture Models on Image Semantic Segmentation
Creators: name: Saire, Darwin
name: Rivera, Adín Ramírez
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The semantic segmentation task aims at dense classification at the pixel-wise level. Deep models exhibited progress in tackling this task. However, one remaining problem with these approaches is the loss of spatial precision, often produced at the segmented objects' boundaries. Our proposed model addresses this problem by providing an internal structure for the feature representations while extracting a global representation that supports the former. To fit the internal structure, during training, we predict a Gaussian Mixture Model from the data, which, merged with the skip connections and the decoding stage, helps avoid wrong inductive biases. Furthermore, our results show that we can improve semantic segmentation by providing both learning representations (global and local) with a clustering behavior and combining them. Finally, we present results demonstrating our advances in Cityscapes and Synthia datasets.
description: Pre-print to appear in IEEE Access. Code available at https://gitlab.com/mipl/phgmm
Buried wood effects on soil nutrient supply and microbial activity in different oil sands reclamation soils in Northern Alberta
Creators: Manchola Rojas, Laura Alejandra
Publisher: name: University of Alberta Library
Year: 2022

Buried wood is an important component of natural and anthropogenic soils, yet it remains severely understudied. Nutrient immobilization as a response to wood addition in soils raises concerns from oil sands reclamation practitioners since the clear and grub procedures prior to soil salvaging tend to leave remains of unmerchantable wood that is salvaged with the soil and subsequently placed on reclamation landscapes as part of the cover soil. Additionally, there are no reports about how much buried wood is potentially added to reclamation soils in the area of Northern Alberta. This thesis aimed to investigate the impacts of buried wood on the nutrient supply and microbial communities in different soils used in oil sands reclamation and to determine how much buried wood is there in reclamation soils and how is this linked to the soil nutrient supply in the field. A 60-day incubation study was performed with different volumes and types of buried wood (0%-50%, aspen and pine wood), and four different soils (fine and coarse forest floor-mineral mix: fFFMM and cFFMM, peat-mineral mix: PMM, and Peat); analyses on soil nutrient supply rates, microbial biomass C and N, and Community Level Physiological Profiling were performed at the end of the incubation period, soil respiration was measured throughout the incubation. A complementary field study was performed in a 5-year old reclamation site with FFMM and PMM in Northern Alberta where buried wood sampling was performed and soil samples were collected for nutrient supply rate analysis. In the incubation study, responses varied depending on the soil type, but buried wood caused nitrogen immobilization in three out of the four soils at rates of 10% and above, due to an increase in the soil C:N ratio; soils with lower C:N ratio like fFFMM and PMM were more susceptible to nitrogen immobilization just after the smallest rate of 10%; buried wood increased the microbial activity but no significant changes in the soil metabolic profiles were noted. The field studyiiiconcluded that the average amount of buried wood is less than 1.5% or 34 m3/ha in the top 20 cm of these cover soils and it was not linked to the soil nutrient profiles. The findings in this thesis suggest that although buried wood increases the soil C:N ratio and subsequently causes nitrogen immobilization, the amount present in reclamation soils is not a motive of concern for operational practices. However, supervision on how much buried wood is salvaged with soil is recommended to avoid nitrogen immobilization.
Optimization and control of heat exchanger network under uncertainty
Creators: Manchikatla, Chaitanya
Publisher: name: University of Alberta Library
Year: 2022

The dynamic control of heat exchanger network is important for developing energy efficient and safe industrial processes. In Chapter 3 of this work, the uncertainty is considered in inlet temperature of hot stream. The cold stream is bypassed around the heat exchanger. This work aims to track the setpoint temperature of the mixed stream by manipulating the bypass fraction of the cold stream around the heat exchanger.

The implemented control is in Nonlinear Model Predictive Control (NMPC)

framework. The uncertain optimal control problem (OCP) is dealt by using scenario tree based approximation along with an affine policy based method. The first principles model of shell and tube heat exchanger is used. The orthogonal collocation technique is applied to discretize the first principles model into the system of algebraic equations. The results show that for possible scenarios of uncertainty, the controlled variable efficiently tracks setpoint. In comparison, considering the same

scenarios of uncertainty used, the deterministic optimization approach shows significant deviation of the controlled variable from the setpoint as time passes.

Fouling is a concerning problem for heat exchange in industries. It is the deposition of unwanted materials on heat exchanger surfaces which offers extra resistance for heat transfer. Generally, chemical cleaning and

flowrate distribution are used to mitigate fouling. In Chapter 4 of this work, the optimal cleaning scheduling and bypass control problems are formulated simultaneously considering disturbances in inlet temperature of cold stream. This integrated problem is formulated as a MINLP problem. The cleaning scheduling variables are binary decision variables, and the bypass fractions are continuous decision variables. A axially lumped and radially distributed model of HEN is considered in this chapter. The uncertain OCP is made tractable using an affine policy based methods and scenario tree based approximations. The performance of the proposed uncertain optimization problem is demonstrated using

various case studies which include PHT of crude. This is because fouling is a relevant and most evident in PHT due to presence of impurities in crude. In this uncertain optimization, the value of objective function which represents the additional cost occurred because of fouling as compared to ideal clean conditions is reduced by 44% as compared to deterministic optimization.
Adding nonlinearity to an electromagnetic-magnonic quantum hybrid device
Creators: name: Pfirrmann, Marco
Publisher: name: KIT Scientific Publishing
Year: 2020
Subjects: Quanten-Magnonics
Hybride Quantensysteme
Tieftemperaturphysik
quantum magnonics
hybrid quantum systems
low temperature physic

description: In this book, hybrid systems based on yttrium-iron-garnet (YIG), three dimensional microwave cavity resonators, and superconducting transmon qubits, are investigated by continuous wave and pulsed microwave spectroscopy. Limitations to the magnetic linewidth in the quantum regime are identified and coherent exchange between a magnon and a superconducting qubit are demonstrated. Finally, a first step towards a strongly coupled hybrid system containing all three components is demonstrated.
Detection Statistics of Pulse Signals at Declinations from $+42^o$ to $+52^o$ at the Frequency 111 MHz
Creators: name: Samodurov, V. A.
name: Tyul'bashev, S. A.
name: Toropov, M. O.
name: Logvinenko, S. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A search for pulse signals was carried out in a new sky area included in the monitoring program for the search for pulsars and transients. Processing of several months data recorded in six frequency channels with a total bandwidth of 2.5 MHz showed that, on average, 4 pulses per hour are observed in each of the 24 connected stationary beams. Of these pulses, 18.3% are similar to those of pulsars. They are visible in one or two neighboring beams and have a pronounced dispersion shift, that is, they are recorded first at a high and then at a low frequency, which indicates the possible passage of the signal through the interstellar medium. Almost 68% of such detected pulses belong to six known pulsars with dispersion measures from 9 to 141 $pc/cm^3$, and almost all of the remaining pulses are either noise of an unknown nature or artifacts of the proposed pulse separation technique. An additional study of the selected array of 3650 obvious pulsar pulses revealed 13 pulses belonging to four rotating radio transients (RRATs). Their dispersion measures are in the range of 17-51 $pc/cm^3$. A search for regular (periodic) RRAT emission was carried out using power spectra summed over 121 days. Periodic radiation was not detected, but for two RRATs, upper estimates of the periods were obtained from measurements of the time intervals between pulses. The upper estimates of the integrated flux density of the detected RRATs are in the range 2-4 mJy at the frequency 111 MHz.
description: published in Astronomy Report, translated by Yandex translator with correction of scientific lexis, 6 pages, 3 figures, 2 tables
Arts-based Curricula for Heritage Language Development and Maintenance
Creators: Onita, Adriana
Publisher: name: University of Alberta Library
Year: 2022

Most immigrants and refugees lose their Heritage Language (HL) within one to three generations of moving to Canada. This study addresses a major gap in language education research about the potential of arts-based curricula to support the HL development and maintenance (HLDM) of multilingual youth in Canada and counter rapid HL loss. Anchored within an arts-based research paradigm (Conrad & Beck, 2015), the study explores two research questions: 1) What contributions might arts-based curricula make to our understanding of HL development and maintenance in Alberta? and 2) How might arts-based practices support Spanish HL youth learners’ language and literacy experiences and aspirations? Informing this study are theoretical commitments to Sociocultural Theory (Bronfenbrenner, 1979) and Multiliteracies Theory (New London Group, 1996), pedagogical commitments to Transformative Multiliteracies Pedagogy (Cummins, 2009) and Meaningful Literacy Instruction (Hanauer, 2012), and methodological commitments to community arts-based research (Barndt, 2008; Cahnmann-Taylor, 2008; Conrad & Beck, 2015) and Poetic Inquiry (Sameshima et al., 2017). The two research questions were explored through a case study of a month-long digital Spanish Art Camp in August 2020 with nine participating Spanish HL youth learners aged 13-18. Data collection included pre- and post-camp individual semi-structured interviews, participants’ multimedia artworks, their online interactions on Zoom and Slack, our recorded individual and group art sessions, and my observations and arts-based field-notes. Data revealed how arts-based curricula (such as self-portraiture, bilingual poetry, protest art, illustration, photography, video, animation, and painting) can support the literacy and language development of HL youth, facilitate identity exploration and relationship building in the HL, and boost learner engagement and motivation. Being the first study of its kind in Canada to creatively combine HLDM and arts-based research, it presents an original contribution to language education research. In addition, the study includes a rich contextual

chapter, where Bronfenbrenner’s Ecological Systems Theory (1979) is used to trace three chronosystems in Canada’s history in relation to HL policies, planning, programs, and practices. It also features a unique literature review of 96 studies pertaining to language learning through the arts, revealing the gaps in research on youth HL development and maintenance through the arts in Canada.
Offenheit in Wissenschaft, Forschung und Kultur - Vernetzungs- und Kompetenzstelle zu Open Access in Brandenburg
Creators: name: Euler, Ellen
Publisher: name: Zenodo
Year: 2020
Subjects: open access
Open Science

description: Das Video wurde als Input zur 5. (öffentliche) Sitzung des Ausschusses für Wissenschaft, Forschung und Kultur erstellt (zur Tagesordnung siehe: : https://perma.cc/6ULK-E2XS) und auf Youtube veröffentlicht (https://youtu.be/kkrjx6x9AFk). Im Video wird einleitend Open Access erläutert und sodann die für die Implementierung der Maßnahmen aus der Open-Access-Strategie des Landes Brandenburg resultierenden Bedarfe. Zur Open-Access-Strategie des Landes Brandenburg siehe: https://doi/org/10.5281/zenodo.3757920 Factsheet: https://doi.org/10.5281/zenodo.3362010 Sowie zu weiteren Materialien zu Open Access in Brandenburg: https://zenodo.org/communities/openaccess_bb/?page=1&size=20
Organizing Against Poverty in Edmonton: A Case Study of EndPovertyEdmonton Movement Organization
Creators: Oduro, Razak
Publisher: name: University of Alberta Library
Year: 2022

This study examines the antipoverty efforts and social movement-building approach of EndPovertyEdmonton (EPE). In the context of poverty, social movement organizing refers to groups of actors working together as a collective and in a coordinated manner to change fundamental structures that reinforce poverty. While some research has examined poverty-related social movements, the focus has been in the global south as opposed to community-focused initiatives in Western developed countries. As a result, little is known about the processes and how community-focused social movements organize and contribute to the elimination of poverty in Western developed countries. Specifically, the objectives of the study were as follows: 1) to determine what accounted for the emergence of EPE with the aspiration to build a movement to end poverty in Edmonton; 2) to examine the core strategies of EPE to achieve the goal of ending poverty in Edmonton; and 3) to ascertain the socio-contextual factors that enable or constrain EPE in the process of organizing against poverty in Edmonton. Using a case study methodology, and generating data through one-on-one interviews and a document review, findings from the study offer insights into the dynamics, strategies, and contexts of antipoverty organizing of EPE. The findings indicate that EPE has embarked on a bold vision to build a movement to end poverty in Edmonton. This huge undertaking by EPE represents a novel approach aimed at eliminating poverty and it signals a focus to drive conscious collective change. As well, the study found that the development of EPE has influenced and renewed motivation for anti-poverty work and has resulted in important accomplishments that are likely to contribute to the elimination of poverty in Edmonton. However, despite EPE’s accomplishments, the findings indicate that strategies that are critical for effective movement-building are largely missing. For example, I show how there is a disconnection, what I refer to as “the missing link” between the key aspirations that gave rise to the movement organization and current EPE strategies. Furthermore, I detail the influences of socio-contextual factors (e.g., resources, political and policy factors) on the work of EPE, underscoring the socio-contextual factors that facilitate and constrain efforts to build a movement to end poverty in Edmonton. Finally, I discuss how the findings of this study provide practical implications for theory, research, and practice.
Use of Electrical Resistance Heating and Electrical Heater Heating to Remove Condensate Blockage in the Near-wellbore Region
Creators: Wang, Siyuan
Publisher: name: University of Alberta Library
Year: 2022

During the production of gas condensate from a reservoir, a gas condensate bank may be formed in the near-wellbore region, leading to reduced long-term productivity. The major existing remedial methods for removing the condensate bank include cyclic gas injection, solvent injection, wettability alternation using surfactants, etc. The drawbacks of the existing methods are that their nature of requiring injecting fluid into formation limits their application in low-permeability formations, and their field execution may disturb the normal production of gas condensate. The presented approach uses an electrical heater, or an electrode installed at the bottomhole to remove the condensate bank, avoiding injecting fluid into the reservoir and eliminating the need for workover operations when executing the remedial job. We carry out numerical simulation studies to examine the feasibility of the new approach.

A conceptual reservoir model was built with an appropriate simulator CMG STARS. Simulation results show that the approach provides good production restoration in low permeability reservoirs with condensate blockage issues. By heating the near-wellbore region, the operation increases both temperature and pressure around the wellbore. Such increases, on one hand, lead to shifting of the phase envelope, which results in re-vaporization of the condensate bank; on the other hand, the increases in temperature and pressure reduce the capillary force, decreasing the residual oil saturation and mobilizing condensate that cannot be recovered at the original pressure and temperature conditions. In conclusion, the study provides an alternative solution to the remediation of condensate blockage that is easy to set up and convenient to control. Compared with other methods, the new approach requires only one operation to install the heating element and offers a long-term remedy for production loss caused by the condensate bank.
Detection of Optical Flares on the Selected G-M Dwarfs from Long-term Photometric Series
Creators: name: Bondar', N. I.
name: Katsova, M. M.
name: Shlyapnikov, A. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have carried out a search for flares from the analysis of light curves for 12 active G, K, and M dwarfs. As sources of data we used ground-based observations in 2000-2020 from the photometric databases ASAS, SuperWASP, KWS. Events of low-amplitude brightening (Delta V < 0.25 mag), which possibly could be flares, were revealed for 11 stars. A large number of such increases in brightness were found on K dwarfs. Events of increasing in V-magnitudes to 0.5 mag or more were detected on light curves of one G star, BE Cet, and two M dwarfs. For three flares we could follow their development with time. We have estimated the duration of these flares; they lasted more than an hour, but less than 3 hours. In most cases we could not determine a lifetime of the suggested flares, but we believe that most of the probable flares on the investigated cool dwarfs are short-lived, on the order of several minutes.
description: 6 pages, 3 figures, 2 tables
Refuge and Life Overseas: Influences of Gender, Culture, and Migration on Parenting Practices of African Refugees in Canada
Creators: Okungbowa, Eki
Publisher: name: University of Alberta Library
Year: 2022

Parenting is a socially and culturally constructed role and experience. Parenting practices vary across and within communities yet most of what we know about parenting in the literature stems from Western worldviews on what ideal parenting and child-rearing looks like in practice. Taking a postcolonial feminist approach, this study helps to diversify the literature by presenting the perspectives of 11 parents with traditional and postcolonial African worldviews who have migrated to Canada. With the purpose of examining gender-based parenting practices of African refugees in Alberta, Canada, this study drew upon existing interviews from a larger study focused on gender relations in African immigrant families. The study used interpretative phenomenological analysis informed by three theoretical frameworks (transnationalism, postcolonial feminism, and intersectionality) to generate three themes and nine subthemes. These findings reveal old, new, and bifocal ways African refugees practice parenting in a post-migration context as well as the impacts of structural forces on their practices. Key among the complicating factors described involve a lack of community-focused and culturally-informed social supports for adjusting to new gender roles and relations in cultural traditions, family life, and parenting challenges typical in their post-migration experiences. Implications for childcare, community, and workplace supports to help African refugees successfully manage the higher risk of facing a host of interpersonal, systemic, and structural barriers when they arrive in Western host countries like Canada are discussed. Studies on gender roles and relations in parenting practices for African refugee parents are rare and this study provides much-needed insights that can be further explored.
Modeling Voltage Source Converter Interfaced Equipment for Power System Harmonic Analysis
Creators: Bo Gao
Publisher: name: University of Alberta Library
Year: 2022

The use of voltage source converter (VSC) has been widely accepted in present power systems for interfacing renewable energy generations, high voltage direct current (HVDC) transmission, flexible alternating current transmission systems (FACTS), and other applications. Due to the converter’s power electronic composition, there is a need to evaluate VSC’s harmonic impacts using tools such as harmonic power flows and frequency scans. For power system planning, there is a significant need for a harmonic model that can represent the harmonic characteristics of VSC equipment.

This thesis first clarifies the harmonic characteristics of the VSC-interfaced equipment. The main concern regarding VSC-interfaced equipment is their impact on low-order harmonics because such harmonics are more prevalent in current power systems. The main objective of this thesis is to develop models of VSC-interfaced equipment at low-order harmonics based on the response of VSC-interfaced equipment to such harmonics.

This thesis then proposes analytical harmonic models for four types of VSC-interfaced equipment: three-phase VSC, single-phase VSC, doubly-fed induction generator (DFIG), and VSC-HVDC. The results show that all these equipment can be modeled as harmonically coupled impedance matrices. The only exception is the single-phase VSC that has a form of a Thevenin circuit at the 3rd harmonic. Methods to determine the model parameters have been developed for each type of equipment. The validity of the proposed harmonic models and the impacts of various VSC design parameters have been demonstrated using extensive simulation studies and lab experiments. Case studies have demonstrated the effectiveness of the proposed models for harmonic power flow studies.