cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
In situ high-pressure synchrotron x-ray diffraction study of CeVO4 and TbVO4 up to 50 GPa
Creators: name: Errandonea, D.
name: Kumar, R. S.
name: Achary, S. N.
name: Tyagi, A. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Room temperature angle-dispersive x-ray diffraction measurements on zircon-type TbVO4 and CeVO4 were performed in a diamond-anvil cell up to 50 GPa using neon as pressure-transmitting medium. In TbVO4 we found at 6.4 GPa evidence of a non-reversible pressure-induced structural phase transition from zircon to a scheelite-type structure. A second transition to an M-fergusonite-type structure was found at 33.9 GPa, which is reversible. Zircon-type CeVO4 exhibits two pressure-induced transitions. First an irreversible transition to a monazite-type structure at 5.6 GPa and second at 14.7 GPa a reversible transition to an orthorhombic structure. No additional phase transitions or evidences of chemical decomposition are found in the experiments. The equations of state and axial compressibility for the different phases are also determined. Finally, the sequence of structural transitions and the compressibilities are discussed in comparison with other orhtovanadates and the influence of non-hydrostaticity commented.
description: 28 pages, 6 figures, 38 references
Quality of life of cancer patients at palliative care units in developing countries : systematic review of the published literature
Creators: name: Gayatri, Dwi
name: Efremov, Ljupcho
name: Kantelhardt, Eva Johanna
name: Mikolajczyk, Rafael
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 610

description: Purpose: This systematic review aims to summarize factors that influence the quality of life (QOL) of advanced cancer patients in palliative care (PC) in developing countries. Understanding this context in developing countries milieu is necessary; however, this outcome is rarely reported. Methods: Following the PRISMA guidelines, the electronic databases MEDLINE, Embase, CINAHL, and Web of Science were systematically searched using the search terms: QOL, cancer, PC, and names of all developing countries. Studies with less than ten subjects, qualitative or pilot studies, reviews, conference abstracts, and that reported validation of QOL questionnaires were excluded. Results: Fifty-five studies from 15 developing countries in the African (n = 5), Latin America and the Caribbean (n = 10), and Asian (n = 40) region were included in the narrative synthesis. 65.4% were cross-sectional, 27.3% were cohort studies, 7.3% were RCTs or quasi-experimental studies. Around 30 QOL factors were studied with 20 different types of QOL instruments. Advanced cancer patients who were older, married/ever married, participated in additional care within PC, used complementary and alternative medicine (CAM), and practiced spirituality/religiosity showed higher QOL score. Low educational level and high depression were associated with a lower QOL. Conclusion: Various factors affect QOL among cancer patients in PC. Patients valued the use of CAMs; however, the quality and safety aspects should be properly addressed. Important factors that influenced the QOL score were social and spiritual support. While there is a general need to develop PC strategies further, recognizing patients’ needs should be prioritized in national cancer programs.
Heat and work fluctuations for a harmonic oscillator
Creators: name: Sabhapandit, Sanjib
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The formalism of Kundu et al. [J. Stat. Mech. (2011) P03007], for computing the large deviations of heat flow in harmonic systems, is applied to the case of single Brownian particle in a harmonic trap and coupled to two heat baths at different temperatures. The large-t form of the moment generating function ~ g(s) exp[t m(s)], of the total heat flow Q from one of the baths to the particle in a given time interval t, is studied and exact explicit expressions are obtained for both m(s) and g(s). For a special case of the single particle problem that corresponds to the work done by an external stochastic force on a harmonic oscillator coupled to a thermal bath, the large-t form of the moment generating function is analyzed to obtain the exact large deviation function as well as the complete asymptotic forms of the probability density function of the work.
description: 11 pages, 6 figures
Evidence for the Collective Nature of the Reentrant Integer Quantum Hall States of the Second Landau Level
Creators: name: Deng, N.
name: Kumar, A.
name: Manfra, M. J.
name: Pfeiffer, L. N.
name: West, K. W.
name: Csáthy, G. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report an unexpected sharp peak in the temperature dependence of the magnetoresistance of the reentrant integer quantum Hall states in the second Landau level. This peak defines the onset temperature of these states. We find that in different spin branches the onset temperatures of the reentrant states scale with the Coulomb energy. This scaling provides direct evidence that Coulomb interactions play an important role in the formation of these reentrant states evincing their collective nature.
The colour octet representation of the non-forward BFKL Green function
Creators: name: Chachamis, G.
name: Vera, A. Sabio
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We factorize the infrared divergences of the non-forward BFKL Green function for a general t-channel projection of the color quantum numbers and study the properties of the infrared finite remainder in the case of color octet exchange. The octet Green function is compared with the singlet case for different values of the momentum transfer. The octet Green function plays an important role in the calculation of the finite remainder of the two-loop six-point MHV planar amplitude in N = 4 SYM as it was demonstrated by Bartels, Lipatov and one of us in http://arXiv.org/abs/arXiv:0802.2065 and http://arXiv.org/abs/arXiv:0807.0894. A comparison with regularizations preserving conformal invariance at large momentum transfer is shown.
description: 12 pages, 7 figures
A robotic needle guide for prostate brachytherapy with pre-operative to intra-operative prostate volumes registration
Creators: name: Prananta, Thomas Diego
Publisher: name: University of British Columbia
Year: 2010

description: The conventional prostate brachytherapy approach is limited by needle positioning accuracy, needle trajectory option, and prostate motion and deformation between the pre-operative volume study and the seed implant procedure. These limitations increase the risks of post implant complications. In this thesis we develop a robotic needle guide to improve prostate brachytherapy needle placement accuracy and trajectory option as well as a pre-operative to intra-operative prostate volume registration algorithm to address the issue of prostate motion and deformation. Our four degrees of freedom robot provides X-Y axes translational accuracy of 0.12 and 0.1 mm compared to the 5 mm accuracy of the standard needle guide. The robot also provides yaw and pitch angulations with 0.05 degrees accuracy which can be used to reach prostate regions blocked by pubic arch interference. The robot is adaptable to conventional brachytherapy apparatus without adding the clinical procedure time and can be used manually in the case of electronic control failure. The registration approach is based on fitting prostate surfaces into ellipsoids. Pre-operative and intra-operative sagittal view-based volume data are contoured using a novel semi automatic sagittal view-based segmentation algorithm. The resulting contours are fit into ellipsoids whose parameters - centers, orientations, and radii - are used to calculate the registration matrix. The accuracy of the registration algorithm was compared with Optotrak measurement as the gold standard and with the Iterative Closest Point (ICP) algorithm. The result shows that the orientation of the ellipsoid fit is sensitive to user initialization points causing up to 5 mm translational errors and 5.5 degrees angular error. The comparison with ICP shows that the ellipsoid fitting based algorithm is faster but less accurate.
Testing stability in a spatial unilateral autoregressive model
Creators: name: Baran, Sándor
name: Pap, Gyula
name: Sikolya, Kinga
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Least squares estimator of the stability parameter $\varrho := |α| + |β|$ for a spatial unilateral autoregressive process $X_{k,\ell}=αX_{k-1,\ell}+βX_{k,\ell-1}+\varepsilon_{k,\ell}$ is investigated. Asymptotic normality with a scaling factor $n^{5/4}$ is shown in the unstable case, i.e., when $\varrho = 1$, in contrast to the AR(p) model $X_k=α_1 X_{k-1}+... +α_p X_{k-p}+ \varepsilon_k$, where the least squares estimator of the stability parameter $\varrho :=α_1 + ... + α_p$ is not asymptotically normal in the unstable, i.e., in the unit root case.
Linear transmit precoding with optimized dithering
Creators: name: Saxena, Amodh Kant
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: 1-bit quantized transmission
Massive MIMO
Downlink precoding
Constant envelope transmission
1-bit DACs
Bussgang decomposition

description: High power amplifiers (HPA), used for transmission in wireless communication systems, add nonlinear impairments to the output signals. Through Constant envelope (CE) transmission, distortion in the signal can be avoided without wasting power on PA linearization. A more restricted form of CE transmission, 1-bit quantized transmission, further simplifies the RF chain and reduces the DAC power consumption. In this thesis, for CE transmission and 1-bit quantized transmission at the BS antennas, we analyze downlink transmission for low complexity linear precoding. We observe that for small numbers of users in the downlink, correlation among the quantization error components across BS antennas is high, deteriorating the performance rapidly as number of users become smaller. To improve performance for smaller numbers of downlink users, we propose the addition of correlated Gaussian dither to the precoded signal before quantization, and subsequent transmission. We observe that the receive SQINR peaks for finite non-trivial dither power. For given value of transmit power, number of BS antennas and number of users, SQINR is maximized analytically by the transmitter, to find the optimum dither power, using the Bussgang decomposition. We observe that with the implementation of optimized dithering, the error floor in the coded BER at high transmit power, for CE and 1-bit quantized transmissions, is pushed down significantly. We also observe that optimum dither power increases monotonically with transmit power, with rate of increase decreasing with increasing transmit power. Further, the optimum dither power strictly increases with number of BS antennas.
DEVELOPMENT AND APPLICATION OF INTEGRATED MULTISCALE MODEL FOR ELECTROSTATIC PRECIPITATION
Creators: name: WENCHAO GAO
Publisher: name: Monash University
Year: 2020
Subjects: subject: 80205 Numerical Computation
subject: FOS: Computer and information sciences

description: In the thesis, an integrated numerical model is applied to simulate the electrostatic precipitator (ESP) process. The results reveal the influences of electrode shape and ionic wind on ESP efficiency. For the first time in this field, the effect of dust layers on particle capture efficiency are examined systematically. Additionally, an experimental platform is established to test various parameters; the data obtained could facilitate future improvement of the model and provide a valuable database in open literature. This study also provides important suggestions/guidelines to the electrostatic precipitator (ESP) operators for optimization of this industrial process.
Compiled Body of Works in Field Epidemiology
Creators: name: Tsehay Ayele
Publisher: name: Zenodo
Year: 2016

description: Background: Measles is vaccine preventable diseases, which cause significant morbidity and mortality among children worldwide especially in developing countries like Ethiopia. In Southern Nation Nationalities and Peoples' Region outbreaks of measles occur every year. The aim was to rapidly investigate the outbreak epidemiologically and guiding response activities in the affected woreda, from March-April 2015.

Methods: We reviewed a line list and case register logbook of the districts, as the World Health Organization, measles case definition. We interviewed 50 cases and 100 controls, using a structured questionnaire. We applied a checklist to observe case managed health facility. We collected blood samples, transported and examined as per to standard. We used epi info 7 to analying the data.

Result: We identified 158 (five confirmed and 153 suspected) measles cases from line list, 86 (54.4%) were males, with median age of 6 years ranging from 7 months to 28 years. The most affected age was 5-9 years 90 (57%), with the age specific attack rate of 310/100,000.The epidemic peaked on 2/17/2015. We recruited 50 cases (median age of 5 years ranging from 1 year to 20 years), and 100 controls (median age 5 years ranging from 1 year to 14 years).Not-vaccinated for measles, [AOR=11.3, 95% CI (4-30.3)], Malnourished [AOR=8.6, 95% CI (3.8- 19.1)], and close Contact with cases, [OR=52.8, 95% CI (14.6, 190.3)], were factors significantly associated with the outbreak
H-alpha survey of nearby dwarf galaxies
Creators: name: Kaisin, S. S.
name: Karachentsev, I. D.
name: Ravindranath, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the H-alpha imaging data and flux measurements for 30 dwarf galaxies in the Local volume. The H-alpha fluxes are used to derive the galaxy star formation rate, SFR. The sample of observed galaxies is characterized by the following parameters: the median distance of 7.5 Mpc, the median blue absolute magnitude of -14.8 mag, and median SFR of -2.0 dex. Two dSph members of the Local Group: Cetus and Leo IV do not show signs of star formation on the rate of -5.4 dex and -7.0 dex, respectively. The BCD galaxy ESO 553-46 has one of the highest specific SFR among the Local volume galaxies.
description: 22 pages, 4 figures, 1 table; MNRAS, 2012, accepted
Manipulating Channel and Charge Properties of Graphene Oxide Membranes for Desalination
Creators: name: YANG LI
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90404 Membrane and Separation Technologies
subject: FOS: Chemical engineering

description: In the 1st project, we employed nanoporous graphene oxide (GO) as the building blocks to fabricate desalination membranes, thus the in-planes nanopores can be the alternative transport channels to improve the water permeability. The 2nd project demonstrated the feasibility and advantages of mild annealing in reducing GO membrane for nanofiltration at 80 oC. In the 3rd project, Janus GO membranes with asymmetric charges were synthesized by spin-coating a positively charged polymer on GO membrane, which could simultaneously remove A2B and A2B salts owing to the synergistic effect from the asymmetric layers with opposite charges.
Development and applications of a comprehensive three-dimensional (3D) blast furnace process model
Creators: name: Jiao, Lulu
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: Blast furnace (BF) still maintains its dominant role as a major iron-producing route but often suffers from the operational instabilities resulting from the 3D asymmetric distributions. This problem has never been seriously addressed due to the complexity of BF and the lack of effective measuring techniques. In this thesis, a comprehensive 3D BF process model has been developed. A series of BF key features are explicitly considered, aiming to give much more realistic predictions of BF inner states and the global performance indicators. Based on this 3D model, the 3D asymmetric BF inner states are firstly investigated.
Fundamental interactions between organosilica nanoparticles and the human pathogen, Candida albicans
Creators: name: VIDHISHRI KESARWANI
Publisher: name: Monash University
Year: 2020
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 100709 Nanomedicine
subject: FOS: Nanotechnology

description: Bloodstream infections caused by the pathogenic fungus Candida albicans pose a significant health challenge both from a treatment and a diagnostic perspective. Nanoparticle-based systems hold great potential to overcome current treatment and diagnostic challenges, but very few studies have addressed the fundamental design of these nanoparticles against pathogenic microorganisms. This thesis describes the synthesis and characterisation of nanoparticles and the evaluation of the effect of their intrinsic and modifiable properties on the human fungal pathogen Candida albicans and immune cells. The results build the knowledge foundation for future developments of nanomaterials as diagnostic sensors, therapeutic or imaging agents against bloodstream infections caused by Candida albicans.
Intrinsic Origin of Negative Fixed Charge in Wet Oxidation for Silicon Carbide
Creators: name: Ebihara, Yasuhiro
name: Chokawa, Kenta
name: Kato, Shigenori
name: Kamiya, Katsumasa
name: Shiraishi, Kenji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate on the basis of first-principles calculations that the formation of carbonate-like moiety in SiO$_2$ could be the intrinsic origin of negative fixed charge in SiC thermal oxidation. We find that two possible origins for the negative fixed charges are O-lone-pair state and a negatively charged CO$_3$ ion in SiO$_2$. Such CO$_3$ ion is able to be formed as a result of the existence of residual C atoms in SiO$_2$, which are expected to be emitted from the interface between SiC and SiO$_2$, and the incorporation of H atoms during wet oxidation.
Metal-Organic Framework-based Sub-nanochannels for Selective Ion Transport
Creators: name: JUN LU
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90404 Membrane and Separation Technologies
subject: FOS: Chemical engineering
subject: 100706 Nanofabrication, Growth and Self Assembly
subject: FOS: Nanotechnology
subject: 30108 Separation Science
subject: FOS: Chemical sciences

description: This thesis investigates synthetic nanoporous membranes to understand material structure-performance relations and design membranes with desirable properties for ion separations. It develops new synthesis strategies for preparation and functionalization of membranes by combining metal organic framework (MOF) materials with polymers. The membranes show exceptional metal ion separation properties, which are comparable to biological cell membranes. The thesis advances membrane science and separation technologies for mining and other applications.
Quantum features derived from the classical model of a bouncer-walker coupled to a zero-point field
Creators: name: Schwabl, Herbert
name: Pascasio, Johannes Mesa
name: Fussy, Siegfried
name: Groessing, Gerhard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In our bouncer-walker model a quantum is a nonequilibrium steady-state maintained by a permanent throughput of energy. Specifically, we consider a "particle" as a bouncer whose oscillations are phase-locked with those of the energy-momentum reservoir of the zero-point field (ZPF), and we combine this with the random-walk model of the walker, again driven by the ZPF. Starting with this classical toy model of the bouncer-walker we were able to derive fundamental elements of quantum theory. Here this toy model is revisited with special emphasis on the mechanism of emergence. Especially the derivation of the total energy hbar.omega and the coupling to the ZPF are clarified. For this we make use of a sub-quantum equipartition theorem. It can further be shown that the couplings of both bouncer and walker to the ZPF are identical. Then we follow this path in accordance with previous work, expanding the view from the particle in its rest frame to a particle in motion. The basic features of ballistic diffusion are derived, especially the diffusion constant D, thus providing a missing link between the different approaches of our previous works.
description: 14 pages, based on a talk given at "Emergent Quantum Mechanics (Heinz von Foerster Conference 2011)", see http://www.univie.ac.at/hvf11/congress/EmerQuM.html
Computational Fluid Dynamics Modelling of Agglomeration during Spray Drying
Creators: name: HASAN JUBAER
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90403 Chemical Engineering Design
subject: FOS: Chemical engineering
subject: 90805 Food Processing
subject: FOS: Other engineering and technologies
subject: 90499 Chemical Engineering not elsewhere classified
subject: 91501 Computational Fluid Dynamics
subject: 80110 Simulation and Modelling
subject: FOS: Computer and information sciences

description: This research aimed to develop a CFD-model facilitating accurate prediction of the agglomeration process in spray drying at a reasonable computational expense. Besides establishing the importance of capturing droplet-shrinkage and obtaining better understanding of the flow-field inside spray dryers, a simplified mapping approach and a rigorous approach to agglomeration-modelling were proposed. The novel rigorous model tested at two distinct scales could accurately predict the trends in the final particle size distributions and distinguish agglomerate structures occurring under different conditions. This work constitutes significant progress towards estimating final powder properties and will prove useful in design of processes allowing controlled agglomeration.
MPEC 2023-X33 : 2019 QF112
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2019 QF112

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Radio resource allocation in emerging broadband wireless access networks : some analytical models and their applications
Creators: name: Rashid, Mohammad Mamunur
Publisher: name: University of British Columbia
Year: 2010

description: New generation wireless networks are designed not only to carry voice but also to support data-intensive and multimedia applications. Broadband wireless networks offer high bandwidth necessary to support these applications. However, without proper resource allocation schemes, increased bandwidth is not sufficient to meet diverse application quality of service (QoS) requirements. In designing or deploying a resource allocation scheme, it is crucial to understand the inter-relationship of the resource allocation scheme and important system parameters with resulting QoS performance. Analytical models provide an opportunity to derive these relationships in an accurate and readily verifiable way. In this thesis, we develop novel analytical models for radio resource allocation schemes in emerging broadband wireless access networks. These models are then adopted for in-depth analysis of QoS performance of the modeled schemes and in devising new solutions based on the models to either improve upon or complement those schemes. Our work primarily deals with Medium Access Control layer; however, in most of our contributions, we also consider cross-layer issues. First, we develop a queueing model for a downlink packet scheduling policy in IEEE 802.16e mobile broadband systems and propose a resource allocation framework based on this model. Compared to existing schemes, proposed framework offers a simple yet more effective way to provide QoS to a heterogeneous mix of applications. Second, we develop a cross-layer model for a prominent multiuser scheduling scheme in multi-antenna-based broadband cellular systems. It captures cross-layer effects of important parameters of the multi-antenna physical layer. The model output is shown to have important applications in QoS provisioning. Next, we perform queueing analysis of controlled channel access mechanism in IEEE 802.11e-based Wireless Local Area Networks. Using the insight gained, we propose a novel channel access scheduling mechanism that achieves very robust performance in meeting QoS guarantees. Finally, we focus on a promising new technology called Cognitive Radio (CR), which can greatly improve spectrum utilization in next generation broadband systems. We develop a queueing model to analyze the performance of an opportunistic spectrum access mechanism in CR networks. The model has important applications including cross-layer analysis and admission control in CR-based broadband networks.
The electronic structure of zircon-type orthovanadates: Effects of high-pressure and cation substitution
Creators: name: Panchal, V.
name: Errandonea, D.
name: Segura, A.
name: Rodriguez-Hernandez, P.
name: Munoz, A.
name: Lopez-Moreno, S.
name: Bettinelli, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The electronic structure of four ternary-metal oxides containing isolated vanadate ions is studied. Zircon-type YVO4, YbVO4, LuVO4, and NdVO4 are investigated by high-pressure optical-absorption measurements up to 20 GPa. First-principles calculations based on density-functional theory were also performed to analyze the electronic band structure as a function of pressure. The electronic structure near the Fermi level originates largely from molecular orbitals of the vanadate ion, but cation substitution influence these electronic states. The studied ortovanadates, with the exception of NdVO4, undergo a zircon-scheelite structural phase transition that causes a collapse of the band-gap energy. The pressure coefficient dEg/dP show positive values for the zircon phase and negative values for the scheelite phase. NdVO4 undergoes a zircon-monazite-scheelite structural sequence with two associated band-gap collapses.
description: 35 pages, 11 figures, 2 Tables, 52 references
Concepts Towards Higher Efficiency and Stability Perovskite Solar Cells
Creators: name: BOER TAN
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Perovskite solar cells are one of the most promising photovoltaic technologies for harvesting solar energy. However, there is scope to improve the device performance and stability through optimization of the charge transporting materials. In this Ph.D. thesis, novel chemical oxidation strategies for organic hole transporting materials are developed to improve their electronic properties. The charge recombination and extraction mechanisms at the perovskite-hole transporting materials interfaces are comprehensively studied to reach higher device performance. The device stability is also prolonged by improving the robustness of the hole transporting material and the perovskite-hole transporting material interfaces with the incorporation of these novel strategies.
The Maillard Reaction in Infant Formula during Processing and Storage
Creators: name: JONATHAN YIK WAI CHEW
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90805 Food Processing
subject: FOS: Other engineering and technologies
subject: 90899 Food Sciences not elsewhere classified
subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering
subject: 90802 Food Engineering

description: Infant formula is highly susceptible to the Maillard reaction, especially during manufacturing and storage. The Maillard reaction in infant formula involves an amino acid (lysine) reacting with a reducing sugar (lactose) to form the Amadori product (lactulosyl-lysine) leading to the blockage of lysine which consequently reduces the protein nutritional quality of infant formula. This thesis investigates the development of the Maillard reaction in infant formula throughout the manufacturing process and storage with the purpose of developing suitable mitigation measures against the Maillard reaction.
Retired A Stars and Their Companions: Eighteen New Jovian Planets
Creators: name: Johnson, John Asher
name: Clanton, Christian
name: Howard, Andrew W.
name: Bowler, Brendan P.
name: Henry, Gregory W.
name: Marcy, Geoffrey W.
name: Crepp, Justin R.
name: Endl, Michael
name: Cochran, William D.
name: MacQueen, Phillip J.
name: Wright, Jason T.
name: Isaacson, Howard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the detection of eighteen Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 < Mstar /Msun < 1.95, radii 2.5 < Rstar/Rsun < 8.7, and metallicities -0.46 < [Fe/H] < +0.30. The planets have minimum masses 0.9 MJup < MP sin i <3 MJup and semima jor axes a > 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 Msun and provide valuable additional information about the properties of planets around stars more massive thantheSun.
description: ApJS accepted. The \rotate command prevented proper compilation. As a result Tables 19 and 21 do not fit onto the page, causing the final columns (S_HK, Nobs, respectively) to be omitted
ChatGPT chats for "The Self-Perception and Political Biases of ChatGPT"
Creators: name: Rutinowski, Jérôme
name: Franke, Sven
name: Endendyk, Jan
Publisher: name: Zenodo
Year: 2023
Subjects: ChatGPT
Markdown
Political Bias
Self-Perception

description: This data was used for the publication "The Self-Perception and Political Biases of ChatGPT". It contains the chats held with ChatGPT, downloaded using a Firefox Plugin that converts the chats to markdown data. If you have any questions concerning this data, feel free to contact the corresponding author, Jérôme Rutinowski.
Characterization and use of a controlled in vivo model for angiogenesis
Creators: name: Heine, Heather Lynn
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis, I attempted to better understand progenitor cells participating in neoangiogenesis. To acheive clarity regarding the identity of endothelial progenitor cells (EPCs) that may contribute to new blood vessels, I used multicolor flow cytometry to compare cells positive for commonly cited EPC surface proteins. Cells positive for 2-3 markers could not be reliably isolated due to limitations of techniques available. Furthermore, the absence of a convincing functional assay to discriminate cell types made the significance of positive results unclear. This initial experience led to studies of a murine subcutaneous model of angiogenesis employing a custom-built chamber. I combined this tool with the use of an automated high-resolution imaging system to establish baseline parameters of vessel growth in vivo. Chamber parameters were established to create a baseline for cell types that infiltrate during angiogenesis, rates of infiltration of each cell type, and for high-resolution morphology of newly forming vessels. In establishing the model system, I tested the hypothesis that certain manipulations markedly alter the growth of neovessels and their constituent cell populations. 1) Purified EPC populations were implanted within the chamber to test their potential to participate in the neoangiogenesis. After an apparently successful pilot project of implanting Sca-1+ cells within chambers, despite six successive studies, the activity of purified cells involved in neoangiogenesis was not confirmed. Alternate approaches to introduce sorted subsets of cells are suggested to continue these studies. 2) Bone marrow (BM) transplants with green fluorescent protein (GFP)-labeled cells were undertaken to examine BM-derived cell contributions to neoangiogenesis. The majority of BM-derived cells within the chamber were F4/80+ white blood cells. In rare instances GFP+CD31+ cells were evident. 3) CD34 is an important sialomucin widely used for EPC isolation however its function remains unclear. Chambers implanted within CD34 null mice show differences in the rates of penetration and cell density in Hoechst 33342+, CD31+ and NG2+ cells, and endothelial tubule formation appears to be defective. The characterization of the model system that I achieved now provides a stepping-stone for studies of specific cells, growth factors, and environmental components best suited to support therapeutic efforts in neoangiogenesis.
Anti-fouling membranes for ultrafiltration
Creators: name: MUAYAD AL-SHAELI
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90404 Membrane and Separation Technologies
subject: FOS: Chemical engineering

description: The shortage of clean, safe and fresh water is a major threat to the environment, health and global food security. In 2025, one-third of world population will face severe water scarcity. Global climate change, global urbanization and increasing demands for fresh water has become the new challenges to the world’s water resources. Therefore, it would be a serious issue for the developing countries in the world. The best solution to overcome the water scarcity may lie in materials and strategies based on membrane separation technology. Membrane separation is a feasible technology, which used extremely to address the problem of water scarcity through separates the materials selectively via pores and minute gaps in the molecular arrangement of a continuous structure. It has many outstanding properties such as low cost, simple operation, small footprint, relatively high filtration efficiency
Primitive model electrolytes. A comparison of the HNC approximation for the activity coefficient with Monte Carlo data
Creators: name: Gutiérrez-Valladares, E.
name: Luksic, M.
name: Millán-Malo, B.
name: Hribar-Lee, B.
name: Vlachy, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Accuracy of the mean activity coefficient expression (Hansen-Vieillefosse-Belloni equation), valid within the hypernetted chain (HNC) approximation, was tested in a wide concentration range against new Monte Carlo (MC) data for +1:-1 and +2:-2 primitive model electrolytes. The expression has an advantage that the excess chemical potential can be obtained directly, without invoking the time consuming Gibbs-Duhem calculation. We found the HNC results for the mean activity coefficient to be in good agreement with the machine calculations performed for the same model. In addition, the thermodynamic consistency of the HNC approximation was tested. The mean activity coefficients, calculated via the Gibbs-Duhem equation, seem to follow the MC data slightly better than the Hansen-Vieillefosse-Belloni expression. For completeness of the calculation, the HNC excess internal energies and osmotic coefficients are also presented. These results are compared with the calculations based on other theories commonly used to describe electrolyte solutions, such as the mean spherical approximation, Pitzer's extension of the Debye-Hückel theory, and the Debye-Hückel limiting law.
description: 15 pages, 6 figures
Conversion of microalgae into hydrogen- or methane-rich syngas
Creators: name: PRATIK VINAYAK GHOLKAR
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90402 Catalytic Process Engineering
subject: FOS: Chemical engineering

description: Single-step, tar-free conversion of microalgae into hydrogen- or methane-rich syngas using reactive flash volatilisation is achieved. Techno-economic and life cycle impacts are analysed for commercial-scale hydrogen and methane production from microalgae using the developed process.
A Computational Investigation of the Catalytic Properties of Graphene Oxide: Exploring Mechanisms Using DFT Methods
Creators: name: Boukhvalov, Danil W.
name: Dreyer, Daniel R.
name: Bielawski, Christopher W.
name: Son, Young-Woo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Here we describe a computational study undertaken in an effort to elucidate the reaction mechanisms behind the experimentally observed oxidations and hydrations catalyzed by graphene oxide (GO). Using the oxidation of benzyl alcohol to benzaldehyde as a model reaction, density functional theory (DFT) calculations revealed that this reactivity stemmed from the transfer of hydrogen atoms from the organic molecule to the GO surface. In particular, neighbouring epoxide groups decorating GO's basal plane were ring-opened, resulting in the formation of diols, followed by dehydration. Consistent with the experimentally-observed dependence of this chemistry on molecular oxygen, our calculations revealed that the partially reduced catalyst was able to be recharged by molecular oxygen, allowing for catalyst turnover. Functional group-free carbon materials, such as graphite, were calculated to have substantially higher reaction barriers, indicating that the high chemical potential and rich functionality of GO are necessary for the observed reactivity.
description: 5 two column pages, 4 figures, stability of reduced graphene oxide also discussed, accepted to ChemCatChem
Direct Z-scheme Vertical Heterojunctions for Photocatalytic Water Disinfection
Creators: name: YUE LIU
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: The accelerated urbanization and improvements in the standard of living have aroused the demands on advanced water disinfection techniques which are of low energy consumption and high efficiency. Utilizing solar light and nanomaterials, photocatalysis has provided new opportunities. This thesis attempts to develop photocatalysts for rapid water disinfection by nanostructure tailoring and photocatalytic model design. The thesis also uncovers the mechanisms of the accelerated disinfection activity. The findings give guidance for advanced photocatalyst design and their application in water treatment.
Advancing Chemical Looping Combustion of Victorian Brown Coal Using Fe-based Oxygen Carriers
Creators: name: IMTENAN SAYEED
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90403 Chemical Engineering Design
subject: FOS: Chemical engineering
subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering

description: Chemical looping combustion (CLC) is a potential pathway to capture generated CO2 from the combustion of carbonaceous fuels. Since Victoria, Australia still relies mostly on Victorian brown coal (VBC) for power generation, this thesis has attempted to advance the CLC of VBC from laboratory-scale to industry-scale operation. Studying different process parameters, this thesis assessed the suitability of iron based oxygen carriers and found hematite as a potential option for large scale operations. Also, through a process simulation and detailed techno-economic study of a of 550 MWe plant, this thesis concluded that CLC of VBC is commercially viable.
Complex Eigenvalue Analysis for Structures with Viscoelastic Behavior
Creators: name: Chevallier, Gaël
name: Renaud, Franck
name: Dion, Jean-Luc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: This document deals with a method for eigenvalue extraction for the analysis of structures with viscoelastic materials. A generalized Maxwell model is used to model linear viscoelasticity. Such kind of model necessitates a state-space formulation to perform eigenvalue analysis with standard solvers. This formulation is very close to ADF formulation. The use of several materials on the same structure and during the same analysis may lead to a large number of internal states. This article purpose is to identify simultaneously all the viscoelastic materials and to constrain them to have the same time-constants. As it is usually possible, the size of the state-space problem is therefore widely reduced. Moreover, an accurate method for reducing mass and stiffness operators is proposed; The enhancement of the modal basis allows to obtain good results with large reduction. As the length of the paper is limited, only theoretical development are presented in the present paper while numerical results will be presented in the conference.
description: ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (IDETC/CIE2011), Washington : France (2011)
Optimal Alignment Sensing of a Readout Mode Cleaner Cavity
Creators: name: Smith-Lefebvre, Nicolas
name: Ballmer, Stefan
name: Evans, Matt
name: Waldman, Sam
name: Kawabe, Keita
name: Frolov, Valery
name: Mavalvala, Nergis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Critically coupled resonant optical cavities are often used as mode cleaners in optical systems to improve the signal to noise ratio (SNR) of a signal that is encoded as an amplitude modulation of a laser beam. Achieving the best SNR requires maintaining the alignment of the mode cleaner relative to the laser beam on which the signal is encoded. An automatic alignment system which is primarily sensitive to the carrier field component of the beam will not, in general, provide optimal SNR. We present an approach that modifies traditional dither alignment sensing by applying a large amplitude modulation on the signal field, thereby producing error signals that are sensitive to the signal sideband field alignment. When used in conjunction with alignment actuators, this approach can improve the detected SNR; we demonstrate a factor of 3 improvement in the SNR of a kilometer-scale detector of the Laser Interferometer Gravitational-wave Observatory. This approach can be generalized to other types of alignment sensors.
MPEC 2023-X34 : 2021 RM238
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2021 RM238

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Simulation of solid flow in single screw conveyors
Creators: name: XIN LI
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: This work investigated single screw conveyors by a particle scale approach for better performance and energy efficiency. For the horizontal screw conveyor, newly designed asymmetric screws can promote the cohesive solid flow by introducing a new disturbance. For the inclined screw conveyor, solid flow dynamic in the whole inclined screw conveyor were investigated. The solid flow is complex and can be affected by each component of the screw conveyor. Additionally, the effects of particle properties and screw parameters, including rolling friction, sliding friction, particle density, screw surface friction and screw geometry on the inclined screw conveyor performance were examined.
Billiard complexity in rational polyhedra
Creators: name: Bedaride, Nicolas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We give a new proof for the directional billiard complexity in the cube, which was conjectured in \cite{Ra} and proven in \cite{Ar.Ma.Sh.Ta}. Our technique gives us a similar theorem for some rational polyhedra.
description: 9 pages, 4 figures
Investigation of Australian coals for Carbon Fuel Cells (CFC)
Creators: name: DANIEL FINI
Publisher: name: Monash University
Year: 2020
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: The carbon fuel cell is an upcoming technology for power generation from coal as it offers double the electric efficiency compared to current generation coal fired power plants. The study aimed at investigating the physical, chemical and electrochemical characteristics of coals from different Australian coal mines and their suitability in a carbon fuel cell. The work produced the highest power output for an electrolyte supported tubular cell using Australian coals. In conclusion, the study demonstrated feasibility of a scalable carbon fuel cell using real world fuels without any pre-processing.
Classical Simulation of Double Slit Interference via Ballistic Diffusion
Creators: name: Pascasio, Johannes Mesa
name: Fussy, Siegfried
name: Schwabl, Herbert
name: Groessing, Gerhard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on a proposed classical explanation, the quantum mechanical "decay of the wave packet" is shown to simply result from sub-quantum diffusion with a specific diffusivity varying in time due to a particle's changing thermal environment. The exact quantum mechanical intensity distribution, as well as the corresponding trajectory distribution and the velocity field of a Gaussian wave packet are therewith computed. We utilize no quantum mechanics, but only familiar simulation techniques for diffusion, e.g., finite differences or coupled map lattices (CML).
description: 4 pages, based on a poster presented at "Emergent Quantum Mechanics (Heinz von Foerster Conference 2011)", see http://www.univie.ac.at/hvf11/congress/EmerQuM.html
Pyrolysis of mixed municipal solid waste: Interaction effect and scale-up studies
Creators: name: Vibhuti Chhabra
Publisher: name: Monash University
Year: 2020
Subjects: subject: 30301 Chemical Characterisation of Materials
subject: FOS: Chemical sciences
subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: Pyrolysis is seen as emerging waste to-energy techniques to handle increasing waste generation, which produces useful end products such as pyrolysis oil, gases and char. This thesis explores the potential of the pyrolysis process to treat the unsegregated MSW generated in the Indian subcontinent. Results show that interacting mixtures within MSW, including rubber and biomass stabilise the pyrolysis oil, whereas, biomass-to-plastic and PET-to-other plastic polymers result in destabilising the oil. Finally, the techno-economic analysis of a 200 TPD MSW pyrolysis plant is concluded to be energy and economically feasible. The economics is however sensitive to oil pricing and collection efficiency.