cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ФАКТОРЫ РАЗВИТИЯ ПИЩЕВОЙ ПРОМЫШЛЕННОСТИ ПО ПЕРЕРАБОТКЕ СЕЛЬСКОХОЗЯЙСТВЕННОЙ ПРОДУКЦИИ
Creators: name: Юсупов Мухиддин Соатович, и.о. проф., PhD Ориентал унверситет, Ташкент, Узбекистан
Publisher: name: Zenodo
Year: 2023

description: В статье рассматриваются вопросы устойчивого продовольственного обеспечения и укрепления продовольственной безопасности на основе развития и совершенствования организационно-экономических механизмов в цепочке производства, промышленной переработки и реализации сельскохозяйственной продукции.

Ключевые слова: продовольственное обеспечение, продовольственная безопасность, первичная и глубокая переработка, цепочка добавленной стоимости, агрокластер, обрабатывающая промышленность, интеграция
Online Aggregation of Probability Forecasts with Confidence
Creators: name: V'yugin, Vladimir
name: Trunov, Vladimir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The paper presents numerical experiments and some theoretical developments in prediction with expert advice (PEA). One experiment deals with predicting electricity consumption depending on temperature and uses real data. As the pattern of dependence can change with season and time of the day, the domain naturally admits PEA formulation with experts having different ``areas of expertise''. We consider the case where several competing methods produce online predictions in the form of probability distribution functions. The dissimilarity between a probability forecast and an outcome is measured by a loss function (scoring rule). A popular example of scoring rule for continuous outcomes is Continuous Ranked Probability Score (CRPS). In this paper the problem of combining probabilistic forecasts is considered in the PEA framework. We show that CRPS is a mixable loss function and then the time-independent upper bound for the regret of the Vovk aggregating algorithm using CRPS as a loss function can be obtained. Also, we incorporate a ``smooth'' version of the method of specialized experts in this scheme which allows us to combine the probabilistic predictions of the specialized experts with overlapping domains of their competence.
description: 32 pages, 10 figures
title: The 2020 National Snow Load Study
Creators: name: Bean, Brennan
name: Maguire, Marc
name: Sun, Yan
name: Wagstaff, Jadon
name: Al-Rubaye, Salam Adil
name: Wheeler, Jesse
name: Jarman, Scout
name: Rogers, Miranda
Publisher: name: Utah State University
Year: 2021

description: The United States has a rich history of snow load studies at the state and national level. The current ASCE 7 snow loads are based on studies performed at the Cold Regions Research and Engineering Laboratory (CRREL) ca. 1980 and updated ca. 1993. The map includes large regions where a site-specific case study is required to establish the load. Many state reports attempt to address the "case-study regions" designated in the current ASCE 7 design snow load requirements. The independently developed state-specific requirements vary in approach, which can lead to discrepancies in requirements at state boundaries. In addition, there has been great interest to develop site-specific reliability-targeted loads that replace the current load and importance factors applied to 50-year snow load events as defined in ASCE 7-16. This interest stems from the fact that the relative variability in extreme snow load events is not constant across the country, leading to a non-constant probability of failure for a given design scenario. This report describes the creation of a modern, universal, and reproducible approach for estimating reliability-targeted design ground snow loads for the conterminous United States. This new approach significantly reduces the size of case-study regions as currently designated in ASCE 7-16 and resolves discrepancies in design snow load requirements that currently exist along western state boundaries.
Charge Form Factor and Cluster Structure of $^6$Li Nucleus
Creators: name: Krumova, G. Z.
name: Tomasi-Gustafsson, E.
name: Antonov, A. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The charge form factor of ${}^6$Li nucleus is considered on the basis of its cluster structure. The charge density of ${}^6$Li is presented as a superposition of two terms. One of them is a folded density and the second one is a sum of ${}^4$He and the deuteron densities. Using the available experimental data for ${}^4$He and deuteron charge form factors, a good agreement of the calculations within the suggested scheme is obtained with the experimental data for the charge form factor of ${}^6$Li, including those in the region of large transferred momenta.
description: 12 pages 5 figures
Towards Optimal Signal Extraction for Imaging X-ray Polarimetry
Creators: name: Peirson, A. L.
name: Romani, R. W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe an optimal signal extraction process for imaging X-ray polarimetry using an ensemble of deep neural networks. The initial photo-electron angle, used to recover the polarization, has errors following a von Mises distribution. This is complicated by events converting outside of the fiducial gas volume, whose tracks have little polarization sensitivity. We train a deep ensemble of convolutional neural networks to select against these events and to measure event angles and errors for the desired gas conversion tracks. We show how the expected modulation amplitude from each event gives an optimal weighting to maximize signal-to-noise ratio of the recovered polarization. Applying this weighted maximum likelihood event analysis yields sensitivity (MDP99) improvements of ~10% over earlier heuristic weighting schemes and mitigates the need to adjust said weighting for the source spectrum. We apply our new technique to a selection of astrophysical spectra, including complex extreme examples, and compare the polarization recovery to the current state of the art.
description: Accepted for publication in ApJ. 12 pages, 9 figures
Quality of life and student life satisfaction among undergraduate pharmacy students at a public university in Central Thailand
Creators: name: Tipaporn Pongmesa
Publisher: name: Silpakorn University Research, Innovation and Creativity Administration Office
Year: 2019
Subjects: quality of life
student life satisfaction
pharmacy student
WHOQOL-BREF-THAI

description: Science, Engineering and Health Studies, 13, 1, 8.-19
Gravitational Instabilities of Uniform Black Strings in AdS
Creators: name: Dhumuntarao, Aditya
name: Mahbub, Rafid
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Locally AdS$_{d-1}\times\mathbb{R}$ uniform black strings (UBS) in the presence of a massless scalar field are believed to avoid the onset of the Gregory-Laflamme (GL) instability in $d\ge4$ as no tachyonic modes exist in the spectrum of the Laplace-Beltrami operator. We present analytic and numerical evidence of GL modes in the Lichnerowicz spectrum indicating that AdS$_{d-1}$ UBSs are classically and thermodynamically unstable at the linear level in $d>4$. In $d=4$, we confirm that uniform BTZ$_3$ strings are indeed stable as previously suggested. We propose that linear instabilities of black strings are triggered if and only if a tachyonic mode exists in the Lichnerowicz spectrum. At the end state of the instability, AdS$_{d-1}$ UBSs of finite length may tunnel to a SAdS$_d$ black hole or converge onto a novel non-uniform AdS$_d$ black string. We conjecture that weak cosmic censorship is violated if the non-uniform solution is an exact AdS$_d$ black funnel and compute entropy estimates in $d>4$ as evidence.
description: v1: 6 Pages; 2 Figures; Comments are welcome; v2: Corrected typos. Added references. Added a note. Submitted to PRL; v3: Added a figure
Lack of susceptibility of soil-inhabiting Platyprepia virginalis caterpillars, a native arctiid, to entomopathogenic nematodes in nature
Creators: name: Karban, Richard
name: Hodson, Amanda
name: Gruner, Daniel
name: Lewis, Edwin
name: Karban, Jesse
name: Joseph, Maxwell
name: Mata, Tawny
name: Strong, Donald
Publisher: name: Digital Repository at the University of Maryland
Year: 2011
Subjects: abundance
population regulation
Heterorhabditis marelatus
Steinernema feltiae
wooly bear
waxworm
Arctiidae
Lepidoptera
pest control

description: Entomopathogenic nematodes (EPNs) can kill and regulate populations of soil-inhabiting insects, but studies evaluating these interactions in native ecosystems are rare. The objective of this study was to examine the effects of EPNs on a non-agricultural caterpillar, Platyprepia virginalis (Boisduval) (Lepidoptera: Arctiidae), under natural conditions. Platyprepia virginalis caterpillars live in litter on the soil surface feeding beneath bush lupine during summer, autumn, and winter. Initial laboratory assays revealed that the caterpillars were vulnerable to at least two species of EPNs with which they co-occur in the coastal prairie in northern California (USA). In contrast to laboratory assays, caterpillars survived exposure to prairie soil containing EPNs under natural conditions in field assays. To better understand the divergence between laboratory and field results for this native caterpillar, we used sentinel insects [Galleria mellonella L. (Lepidoptera: Pyralidae)] to identify particular locations where EPNs were present in the field. Platyprepia virginalis caterpillars were caged at these sites but again showed no evidence of susceptibility to EPNs. Platyprepia virginalis caterpillars reduce their exposure to EPNs by spending their time in and above the litter rather than contacting the soil when given the choice in nature. We conclude that P. virginalis is unlikely to serve as a reservoir for EPNs and that nematodes are unlikely to be important mortality factors for P. virginalis in this natural system.
description: NSF-DEB-0639885 & NSF-DEB-0620475
GTC/CanariCam deep mid-infrared imaging survey of northern stars within 5 pc
Creators: name: Gauza, Bartosz
name: Béjar, Víctor J. S.
name: Rebolo, Rafael
name: Álvarez, Carlos
name: Osorio, María Rosa Zapatero
name: Bihain, Gabriel
name: Caballero, José A.
name: Pinfield, David J.
name: Telesco, Charles M.
name: Packham, Christopher
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this work we present the results of a direct imaging survey for brown dwarf companions around the nearest stars at the mid-infrared 10 micron range ($λ_{c}$=8.7$μ$m, $Δλ$=1.1$μ$m) using the CanariCam instrument at the 10.4 m Gran Telescopio Canarias (GTC). We imaged the 25 nearest stellar systems within 5 pc of the Sun at declinations $δ> -25^{\circ}$ (at least half have planets from radial velocity), reaching a mean detection limit of 11.3$\pm$0.2 mag (1.5 mJy) in the Si-2 8.7$μ$m band over a range of angular separations from 1 to 10 arcsec. This would have allowed us to uncover substellar companions at projected orbital separations between $\sim$2 and 50 au, with effective temperatures down to 600 K and masses greater than 30 $M_{Jup}$ assuming an average age of 5 Gyr and down to the deuterium-burning mass limit for objects with ages $
description: 28 pages, 9 figures, accepted for publication in ApJ
The relationship between bipolar magnetic regions and their sunspots
Creators: name: Yeo, K. L.
name: Solanki, S. K.
name: Krivova, N. A.
name: Jiang, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The relationship between bipolar magnetic regions (BMRs) and their sunspots is an important property of the solar magnetic field, but it is not well constrained. One consequence is that it is a challenge for surface flux transport models (SFTMs) based on sunspot observations to determine the details of BMR emergence, which they require as input, from such data. We aimed to establish the relationship between the amount of magnetic flux in newly emerged BMRs and the area of the enclosed sunspots. Earlier attempts to constrain BMR magnetic flux were hindered by the fact that there is no proper database of the magnetic and physical properties of newly emerged BMRs currently available. We made use of the empirical model of the relationship between the disc-integrated facular and network magnetic flux and the total surface coverage by sunspots reported in a recent study. The structure of the model is such that it enabled us to establish, from these disc-integrated quantities, an empirical relationship between the magnetic flux and sunspot area of individual newly emerged BMRs, circumventing the lack of any proper BMR database. Applying the constraint on BMR magnetic flux derived here to an established SFTM retained its ability to replicate various independent datasets and the correlation between the model output polar field at the end of each cycle and the observed strength of the following cycle. The SFTM output indicates that facular and network magnetic flux rises with increasing sunspot magnetic flux at a slowing rate such that it appears to gradually saturate, analogous to earlier studies. The activity dependence of the ratio of facular and network flux to sunspot flux is consistent with the findings of recent studies: although the Sun is faculae-dominated, it is only marginally so as facular and network brightening and sunspot darkening appear to be closely balanced.
description: In press
Prolific pair production with high-power lasers
Creators: name: Bell, A. R.
name: Kirk, John G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Prolific electron-positron pair production is possible at laser intensities approaching 10^{24} W/cm^2 at a wavelength of 1 micron. An analysis of electron trajectories and interactions at the nodes (B=0) of two counter-propagating, circularly polarised laser beams shows that a cascade of gamma-rays and pairs develops. The geometry is generalised qualitatively to linear polarisation and laser beams incident on a solid target.
description: 4 pages, 1 figure, minor revisions, accepted for publication in Physical Review Letters
Riemann-Roch theorems and elliptic genus for virtually smooth Schemes
Creators: name: Fantechi, Barbara
name: Göttsche, Lothar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C40 (Primary) 14C17, 57R20 (Secondary)

description: For a proper scheme X with a fixed 1-perfect obstruction theory, we define virtual versions of holomorphic Euler characteristic, chi y-genus, and elliptic genus; they are deformation invariant, and extend the usual definition in the smooth case. We prove virtual versions of the Grothendieck-Riemann-Roch and Hirzebruch-Riemann-Roch theorems. We show that the virtual chi y-genus is a polynomial, and use this to define a virtual topological Euler characteristic. We prove that the virtual elliptic genus satisfies a Jacobi modularity property; we state and prove a localization theorem in the toric equivariant case. We show how some of our results apply to moduli spaces of stable sheaves.
description: 31 pages
Making sense of a diagnostic category : a study of the relationship between theory and practice
Creators: name: Maidstone, Peter
Publisher: name: University of British Columbia
Year: 2010

description: Members of scientific disciplines and lay persons alike commonly hold the view that the practical work carried out by those very same members is theory governed. The problem undertaken by this study was to observe, in a psychiatric hospital, the practical work of psychotherapists, with the intent of characterizing the role played by theory in their work. An ethnographic approach was employed, and the research was focused on psychotherapy with patients diagnosed to be members of a single diagnostic category. The researcher began his fieldwork with the assumption that his knowledge of psychiatric theory would allow him to make sense of his observations. Contrary to his expectations, he was unable to discern the theoretical significance of the activities that he observed. This led the researcher to conclude that there was a "gap" between his knowledge and his observations. The researcher developed a number of plausible explanations for the "gap," none of which proved to be adequate. The "gap," in itself, raises a hitherto unacknowledged issue of the relationship between theory and practice. It is argued that the "gap" exists not only for the researcher, but also for any persons who would study a body of scientific theoretical knowledge, and then observe what purports to be the practical application of that knowledge. The "gap" seems to be integral to any theory-guided discipline. The study explicates, it is argued, a characteristic of scientific work. The lack of an adequate explanation for the "gap" is not a failing of the study, but rather points to the lack of a standard which specifies what "theory governed" means. Although the study presents us with a puzzle, it does not put into question the efficacy of theorizing with respect to the accomplishment of practical work in the clinical or any other disciplines.
BIOLOGICALLY ACTIVE SUBSTANCES IN INDIGOFERA  TINCTORIA PLANT
Creators: name: To'raboeva G.N.
Publisher: name: Zenodo
Year: 2023

description: Competitive products are being produced based on the reforms implemented in our country, modernization of production, and attraction of investments in production. These are steps that contribute to the development of our country and the welfare of our people.

Keywords: analysis, benzene, hexane, extract Indigo, Identification, linolenic, component, palmitin, essential oil, fraction
What Are the Issues of Focusing on Irreducible Uncertainties in Professional Work? A Historical Outline of “Prudential Professionalism”
Creators: name: Champy, Florent
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: This article brings into view “prudential professionalism”, a particular type of professionalism needed in situations of irreducible uncertainties, presents the philosophical concept of prudentiality on which this is based, and seeks to clarify both the theoretical and practical issues associated with this professionalism. A discussion with Abbott’s book, The System of Professions, is used to argue that revisiting the theme of professionalism is needed. Then a historical outline of prudential professionalism brings some empirical material to support the theoretical arguments. This historical outline sheds new light on the current difficulties of professionals faced by demands from new public management they cannot meet and by the values of organisational professionalism. Finally, a method to rethink the social conditions of professional work is proposed.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Mathematical Modeling, In-Human Evaluation and Analysis of Volume Kinetics and Kidney Function after Burn Injury and Resuscitation
Creators: name: ArabiDarrehDor, Ghazal
name: Tivay, Ali
name: Meador, Chris
name: Kramer, George C.
name: Hahn, Jin-Oh
name: Salinas, Jose
Publisher: name: arXiv
Year: 2021
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: Existing burn resuscitation protocols exhibit large variability in treatment efficacy. Hence, they must be further optimized based on comprehensive knowledge of burn pathophysiology. A physics-based mathematical model that can replicate physiological responses in diverse burn patients can serve as an attractive basis to perform non-clinical testing of burn resuscitation protocols and to expand knowledge on burn pathophysiology. We intend to develop, optimize, validate, and analyze a mathematical model to replicate physiological responses in burn patients. Using clinical datasets collected from 233 burn patients receiving burn resuscitation, we developed and validated a mathematical model applicable to computer-aided in-human burn resuscitation trial and knowledge expansion. Using the validated mathematical model, we examined possible physiological mechanisms responsible for the cohort-dependent differences in burn pathophysiology between younger versus older patients, female versus male patients, and patients with versus without inhalational injury. We demonstrated that the mathematical model could replicate physiological responses in burn patients associated with wide demographic characteristics and injury severity and that an increased inflammatory response to injury may be a key contributing factor in increasing the mortality risk of older patients and patients with inhalation injury via an increase in the fluid retention. The mathematical model may provide an attractive platform to conduct non-clinical testing of burn resuscitation protocols and test new hypotheses on burn pathophysiology.
description: 24 pages The final version of this paper has been accepted for publication in the IEEE Journal of Transactions on Biomedical Engineering (2021) and is available for early access at https://ieeexplore.ieee.org/document/9478222
A multibeam atom laser: coherent atom beam splitting from a single far detuned laser
Creators: name: Dugué, J.
name: Dennis, G.
name: Jeppesen, M.
name: Johnsson, M. T.
name: Figl, C.
name: Robins, N. P.
name: Close, J. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report the experimental realisation of a multibeam atom laser. A single continuous atom laser is outcoupled from a Bose-Einstein condensate (BEC) via an optical Raman transition. The atom laser is subsequently split into up to five atomic beams with slightly different momenta, resulting in multiple, nearly co-propagating, coherent beams which could be of use in interferometric experiments. The splitting process itself is a novel realization of Bragg diffraction, driven by each of the optical Raman laser beams independently. This presents a significantly simpler implementation of an atomic beam splitter, one of the main elements of coherent atom optics.
KATARAKTA KASALLIGI
Creators: name: Beshariq Abu Ali Ibn Sino Nomidagi  Jamoat Salomatligi Texnikumi o'qituvchisi Boratova Asidaxon  Abbos qizi
Publisher: name: Zenodo
Year: 2023

description: Gavharning loyqalanishi katarakta deyiladi. Ko‘z gavhari loyqalanib katarakta bo‘lganda qorachiq och kulrang tus oladi.

Kalit so’zlar:Gavhar, katarakta,retina,uveopatiya, glaucoma.
Polarized light bursts from kicked quantum rings
Creators: name: Moskalenko, A. S.
name: Berakdar, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-equilibrium quantum rings emit circular polarized subterahertz radiation with a polarization degree controllable on nano- to picosecond time scales. This we conclude using a theory developed here for the time-dependent detection of the circular polarization of polychromatic radiations, valid for time scales comparable to the reciprocal of characteristic emission frequencies. The theory is applied to driven quantum rings whereby the influence of radiative and non-radiative processes on the properties of the emitted light is incorporated.
description: 4 pages, 2 figures; submitted to Phys. Rev. Lett
Auto-RSM: an automated parameter-selection algorithm for the RSM map exoplanet detection algorithm
Creators: name: Dahlqvist, Carl-Henrik
name: Cantalloube, Faustine
name: Absil, Olivier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Most of the high-contrast imaging (HCI) data-processing techniques used over the last 15 years have relied on the angular differential imaging (ADI) observing strategy, along with subtraction of a reference point spread function (PSF) to generate exoplanet detection maps. Recently, a new algorithm called regime switching model (RSM) map has been proposed to take advantage of these numerous PSF-subtraction techniques; RSM uses several of these techniques to generate a single probability map. Selection of the optimal parameters for these PSF-subtraction techniques as well as for the RSM map is not straightforward, is time consuming, and can be biased by assumptions made as to the underlying data set. We propose a novel optimisation procedure that can be applied to each of the PSF-subtraction techniques alone, or to the entire RSM framework. The optimisation procedure consists of three main steps: (i) definition of the optimal set of parameters for the PSF-subtraction techniques using the contrast as performance metric, (ii) optimisation of the RSM algorithm, and (iii) selection of the optimal set of PSF-subtraction techniques and ADI sequences used to generate the final RSM probability map. The optimisation procedure is applied to the data sets of the exoplanet imaging data challenge (EIDC), which provides tools to compare the performance of HCI data-processing techniques. The data sets consist of ADI sequences obtained with three state-of-the-art HCI instruments: SPHERE, NIRC2, and LMIRCam. The results of our analysis demonstrate the interest of the proposed optimisation procedure, with better performance metrics compared to the earlier version of RSM, as well as to other HCI data-processing techniques.
An Evaluation of NIOSH-Funded Centers and Their Response Activities Through the COVID-19 Pandemic: March 2020 to July 2021.
Creators: name: Tenney, Liliana
name: Neimark, Ron
name: Baker, Marissa G
name: Hardy, Meadow
name: Stanley, John
name: Pratap, Preethi
Publisher: name: SAGE Publications
Year: 2025

description:
During the COVID-19 pandemic, workplaces served as an important nexus of disease transmission, increasing the need for evidence-based guidance in occupational safety and health. The National Institute for Occupational Safety and Health (NIOSH), part of the Centers for Disease Control and Prevention in the U.S. Department of Health and Human Services, is responsible for developing such evidence, and funds extramural centers for education, training and research. Using the results of a survey and key informant interviews, we document the impact of research and outreach collaborations by the centers during the pandemic. From 26 surveys and 9 interviews, several themes emerged. Through established partnerships, experts from the NIOSH-funded Centers translated and operationalized information from agencies for local businesses and workers; provided timely technical assistance and outreach; and engaged in research to study health impacts of COVID-19 on diverse worker populations. Overall, the NIOSH-funded centers and programs played an important role in providing critically needed occupational health and safety services to regional stakeholders during the pandemic. Continuing to develop intramural-extramural partnerships to be responsive during a public health emergency will allow these Centers to serve as local or regional subject matter experts, gather real-time data during an emergency event, and aid in the overall response for subsequent public health emergencies.
Comparison of Vibration Power Applied into a Modified Bark Peeling Tools for the Reduction Force Required for Cinnamon Processing (Cinnamomum zeylanicum)
Creators: name: K M T S Bandara
name: B M S Jinendra
name: PLAG Alwis
name: NK Hettiarachchi
Publisher: name: figshare
Year: 2021
Subjects: subject: 99901 Agricultural Engineering
subject: FOS: Other engineering and technologies

description: Abstract
 At present, cinnamon (Cinnamomum zeylanicum) is the main processed spice export from Sri Lanka. However, the industry is facing a challenge to meet its skilled labour demand due to its special nature of processing steps. Bark peeling is the removing step of cinnamon bark after scraping and rubbing steps in which the force required is second only to the rubbing step. The existing peeling tools are inefficient and that demands strenuous arm power. Therefore, this study assesses the possibility of reducing required force for cinnamon peeling by using vibration assisted peeling tools when they were applied different levels of vibration. Three eccentric rotating mass motors (RF-555, R260 and MABUCHI RF-M50WA) that were different in their power ratings as 2.4 W, 1.125 W and 0.5 W were used in the experiment. A traditional peeling knife was modified to fix to the above motors as one motor at a time to evaluate the operating performances. A voltage regulator was used to obtain the best operating power for each motor type. Cinnamon sticks (diameter 3.5cm and length 10cm) were peeled out for 5mm width strip at all peeling operations. The peeling force was recorded as 10 data points per second in realtime by using Sundoo SH-500 force gauge. The stroke speed of the peeling knife was - 40 cm/min. As a control, similar sticks were tested without vibration effects. Data were
 analysed through one way ANOVA to select the better force reduction ratings. Results revealed that there was a significant reduction of force when using all three motor types compared to the control. Moreover, the force reductions were directly proportional to the applied vibration strengths in the studied range. The motor with the highest power ratings 2.4W (RF555- ERM), offered the highest force reduction (78.6%) to the control while the other two motor types with lower power ratings (1.125 W) and (0.5 W) recorded respective lower performance (69.8 % and 36.1%), force reduction to the control. Therefore, it is recommended to test the performance with further elevated operation power (greater than 2.4 W) for further force reductions. All three motor types recorded their best operating performance when the applied voltage level reached to 70% to 80% to their maximum allowable voltage ratings. The results have shown that the potential possibility of using eccentric rotating mass vibration motors in vibration assisted tools for the reduction of force required for bark peeling forces of cinnamon sticks.
Effects of isolation by taking sick leaves of conjunctivitis infected individuals and treatment control on stability of mathematical modeling of conjunctivitis
Creators: name: Ratchada Viriyapong
name: Nitchakan Khedwan
Publisher: name: Silpakorn University Research, Innovation and Creativity Administration Office
Year: 2019
Subjects: basic reproduction number
conjunctivitis
numerical analysis
optimal control
sensitivity

description: Science, Engineering and Health Studies, 13, 1, 20-28
Characterizing and contrasting structural proton transport mechanisms in azole hydrogen bond networks using ab initio molecular dynamics
Creators: name: Atsango, Austin O.
name: Tuckerman, Mark E.
name: Markland, Thomas E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Imidazole and 1,2,3-triazole are promising hydrogen-bonded heterocycles that conduct protons via a structural mechanism and whose derivatives are present in systems ranging from biological proton channels to proton exchange membrane fuel cells. Here, we leverage multiple time-stepping to perform ab initio molecular dynamics of imidazole and 1,2,3-triazole at the nanosecond timescale. We show that despite the close structural similarities of these compounds, their proton diffusion constants vary by over an order of magnitude. Our simulations reveal the reasons for these differences in diffusion constants, which range from the degree of hydrogen-bonded chain linearity to the effect of the central nitrogen atom in 1,2,3-triazole on proton transport. In particular, we uncover evidence of two "blocking" mechanisms in 1,2,3-triazole, where covalent and hydrogen bonds formed by the central nitrogen atom limit the mobility of protons. Our simulations thus provide insights into the origins of the experimentally observed 10-fold difference in proton conductivity.
description: 7-page manuscript, 7 figures; 7-page supporting information, 8 figures
Determination of collinear and TMD photon densities using the Parton Branching method
Creators: name: Jung, Hannes
name: Taheri Monfared, Sara
name: Wening, Thomas
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021

description: We present the first determination of transverse momentum dependent (TMD) photon densities with the Parton Branching method. The photon distribution is generated perturbatively without intrinsic photon component. The input parameters for quarks and gluons are determined from fits to precision measurements of deep inelastic scattering cross sections at HERA. The TMD densities are used to predict the mass and transverse momentum spectra of very high mass lepton pairs from both Drell-Yan production and Photon-Initiated lepton processes at the LHC.
Non-linear Integral Equations and Determinant Formulae of the Open XXZ Spin Chain
Creators: name: Seel, A.
name: Wirth, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We derive a non-linear integral equation for the Bethe-ansatz solvable open XXZ spin chain of arbitrary length describing the lowest lying state with zero magnetization. For this case we show how to combine the integral representation with the known determinant formula of norms and scalar products.
description: final version
The genesis of three podzol-like soils occurring over a climatic gradiant on Vancouver Island
Creators: name: Moon, David E.
Publisher: name: University of British Columbia
Year: 2010

description: Three soils occurring on a climosequence were studied to clarify certain aspects of Podzol genesis and Podzol classification. Data on physical, chemical, and soil solution characteristics of the three soils were collected and analysed. All measures of iron and aluminum were analysed and presented as mass per horizon. Rates of movement for calcium, magnesium, sodium, potassium, iron and aluminum between the canopy, forest floor, B₁ and B₂ horizons were also measured. The interpretations of different measures of iron and aluminum as an index of Podzol expression were shown to be inconsistent. A simple linear model was developed and applied to data from the three soils. The model defined the balance of additions, losses, transformations, and translocations within and between horizons for each site. The model results supported the following hypotheses: 1) The balance of additions, losses, translocations, and transformations vary across the climosequence. 2) The three soils studied can be identified by the balance of processes acting to produce sesquioxide rich B horizons. 3) Current Podzol classification criteria do not reflect differences in the balance of these processes. The model did not support the hypothesis that rates of biochemical cycling would be reflected in Podzol B horizon expression. Two distinct balances of processes forming iron and aluminum rich B horizons were shown to occur. In one site iron and aluminum accumulate primarily as a result of preferential loss of other soil constituents; in the other sites iron and aluminum are dominantly the product of eluviation from the Ae horizon and deposition in the B horizons. Current classification criteria grouped the two soils showing the most strongly contrasting genetic processes together as Brunisols while the intermediate balance was classified as a Podzol. The reasons for this inconsistency are discussed.
Estimating coherence with respect to general quantum measurements
Creators: name: Xu, Jianwei
name: Zhang, Lin
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The conventional coherence is defined with respect to a fixed orthonormal basis, i.e., to a von Neumann measurement. Recently, generalized quantum coherence with respect to general positive operator-valued measurements (POVMs) has been presented. Several well-defined coherence measures, such as the relative entropy of coherence $C_{r}$, the $l_{1}$ norm of coherence $C_{l_{1}}$ and the coherence $C_{T,α}$ based on Tsallis relative entropy with respect to general POVMs have been obtained. In this work, we investigate the properties of $C_{r}$, $l_{1}$ and $C_{T,α}$. We estimate the upper bounds of $C_{l_{1}}$; we show that the minimal error probability of the least square measurement state discrimination is given by $C_{T,1/2}$; we derive the uncertainty relations given by $C_{r}$, and calculate the average values of $C_{r}$, $C_{T,α}$ and $C_{l_{1}}$ over random pure quantum states. All these results include the corresponding results of the conventional coherence as special cases.
description: 8 pages, 2 figures
Lateral Transport and Field-Effect Characteristics of Sputtered P-Type Chalcogenide Thin Films
Creators: name: Wahid, Sumaiya
name: Daus, Alwin
name: Khan, Asir Intisar
name: Chen, Victoria
name: Neilson, Kathryn M.
name: Islam, Mahnaz
name: Pop, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Investigating lateral electrical transport in p-type thin film chalcogenides is important to evaluate their potential for field-effect transistors (FETs) and phase-change memory applications. For instance, p-type FETs with sputtered materials at low temperature (<= 250 C) could play a role in flexible electronics or back-end-of-line (BEOL) silicon-compatible processes. Here, we explore lateral transport in chalcogenide films (Sb2Te3, Ge2Sb2Te5, Ge4Sb6Te7) and multilayers, with Hall measurements (in <= 50 nm thin films) and with p-type transistors (in <= 5 nm ultrathin films). The highest Hall mobilities are measured for Sb2Te3/GeTe superlattices (~18 cm2/V/s at room temperature), over 2-3x higher than the other films. In ultrathin p-type FETs with Ge2Sb2Te5, we achieve field-effect mobility up to ~5.5 cm2/V/s with current on/off ratio ~10000, the highest for Ge2Sb2Te5 transistors to date. We also explore process optimizations (e.g., AlOx capping layer, type of developer for lithography) and uncover their trade-offs towards the realization of p-type transistors with acceptable mobility and on/off current ratio. Our study provides essential insights into the optimization of electronic devices based on p-type chalcogenides.
To What Extent Is the Thrive Intervention Grounded in Research and Theory?
Creators: name: Gibby-Leversuch, R.
name: Field, J.
name: Cooke, T.
Publisher: name: School of Psychology, University of East London
Year: 2019

description: The Thrive approach is an assessment and planning based intervention that aims to develop children’s social and emotional wellbeing. Despite the increased popularity of Thrive, there is limited research that has investigated its effectiveness. After reviewing the assessment, training and intervention elements of Thrive and the evidence base for the underpinning assumptions, this article considers the evaluative research. Thrive is rooted in attachment theory and assumes that infant development is vulnerable to disruption by poor attachment experiences and that these disruptions can be ameliorated in later life through the development of secure relationships with school staff. The article concludes that, while Thrive is based on attachment theory, which itself is well supported by evidence, how Thrive applies and interprets this theory is less well supported. There is currently limited evidence of the impact of Thrive on children’s development. Other issues and implications of this critique are also discussed. This research was completed as part of the Doctorate in Educational Psychology at University of Southampton.
Corner Multifractality for Reflex Angles and Conformal Invariance at 2D Anderson Metal-Insulator Transition with Spin-Orbit Scattering
Creators: name: Obuse, Hideaki
name: Subramaniam, Arvind R.
name: Furusaki, Akira
name: Gruzberg, Ilya A.
name: Ludwig, Andreas W. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate boundary multifractality of critical wave functions at the Anderson metal-insulator transition in two-dimensional disordered non-interacting electron systems with spin-orbit scattering. We show numerically that multifractal exponents at a corner with an opening angle θ=3π/2 are directly related to those near a straight boundary in the way dictated by conformal symmetry. This result extends our previous numerical results on corner multifractality obtained for θ< πto θ> π, and gives further supporting evidence for conformal invariance at criticality. We also propose a refinement of the validity of the symmetry relation of A. D. Mirlin et al., Phys. Rev. Lett. \textbf{97} (2006) 046803, for corners.
description: 4 pages, 2 figures, Proceedings of EP2DS-17
Testing Evolutionary Models with Red Supergiant and Wolf-Rayet Populations
Creators: name: Massey, Philip
name: Neugent, Kathryn F.
name: Dorn-Wallenstein, Trevor Z.
name: Eldridge, J. J.
name: Stanway, E. R.
name: Levesque, Emily M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Despite the many successes that modern massive star evolutionary theory has enjoyed, reproducing the apparent trend in the relative number of red supergiants (RSGs) and Wolf-Rayet (WR) stars has remained elusive. Previous estimates show the RSG/WR ratio decreasing strongly with increasing metallicity. However, the evolutionary models have always predicted a relatively flat distribution for the RSG/WR ratio. In this paper we reexamine this issue, drawing on recent surveys for RSGs and WRs in the Magellanic Clouds, M31, and M33. The RSG surveys have used Gaia astrometry to eliminate foreground contamination, and have separated RSGs from asymptotic giant branch stars using near-infrared colors. The surveys for WRs have utilized interference filter imaging, photometry, and image subtraction techniques to identify candidates, which have then been confirmed spectroscopically. After carefully matching the observational criteria to the models, we now find good agreement in both the single-star Geneva and binary BPASS models with the new observations. The agreement is better when we shift the RSG effective temperatures derived from J-Ks photometry downwards by 200 K in order to agree with the Levesque TiO effective temperature scale. In an appendix we also present a source list of RSGs for the SMC which includes effective temperatures and luminosities derived from near-infrared 2MASS photometry, in the same manner as used for the other galaxies.
description: Astrophysical Journal, in press
Subjective evaluation of spatial analysis and synthesis methods using different microphone arrays
Creators: name: Pawlak, Alan
name: Hyunkook Lee
name: Makivirta, Aki
name: Lund, Thomas
Publisher: name: Zenodo
Year: 2021

description: Paper: https://ieeexplore.ieee.org/document/9610905 Abstract: Multiple spatial analysis and synthesis methods were proposed up to this date, however, there is still a lack of scientific evidence to conclude how proposed methods and measurement setups compare to each other. This paper presents a subjective study that investigates how spatial analysis and synthesis method affects spatial and timbral fidelities of the binaural renderings for three different stimuli and three source positions. Evaluated positions: (a) +30°, (b) +90°, (c) +135° were motivated by the 4+7+0 loudspeaker layout from the ITU-R BS.2051-2 recommendation. Spatial room impulse responses were measured in the ITU-R BS.1116-compliant listening room using two different microphone arrays. Measurements were used to create auralisations from Spatial Decomposition Method (SDM) and Higher-Order Spatial Impulse Response Rendering (HO-SIRR). The test conditions were selected to investigate: (i) rendering method (ii) direction of arrival (DOA) estimation method, (iii) microphone array, (iv) use of a dedicated centre reference microphone with SDM and (v) band-pass filtering of the spatial room impulse responses prior to the TDOA-based DOA estimation and DOA enforcement for the direct sound. The listening experiment followed MUSHRA-like methodology with a hidden reference, employing a five-grade similarity scale. Subjects’ task was to evaluate how similar the test conditions are to the reference (measured BRIR) with regard to the assessed attribute. This article includes a short review of the existing methods, describes the experimental design and presents the results of the formal listening tests followed by the discussion.
COSMOS2020: A panchromatic view of the Universe to $z\sim10$ from two complementary catalogs
Creators: name: Weaver, J. R.
name: Kauffmann, O. B.
name: Ilbert, O.
name: McCracken, H. J.
name: Moneti, A.
name: Toft, S.
name: Brammer, G.
name: Shuntov, M.
name: Davidzon, I.
name: Hsieh, B. C.
name: Laigle, C.
name: Anastasiou, A.
name: Jespersen, C. K.
name: Vinther, J.
name: Capak, P.
name: Casey, C. M.
name: McPartland, C. J. R.
name: Milvang-Jensen, B.
name: Mobasher, B.
name: Sanders, D. B.
name: Zalesky, L.
name: Arnouts, S.
name: Aussel, H.
name: Dunlop, J. S.
name: Faisst, A.
name: Franx, M.
name: Furtak, L. J.
name: Fynbo, J. P. U.
name: Gould, K. M. L.
name: Greve, T. R.
name: Gwyn, S.
name: Kartaltepe, J. S.
name: Kashino, D.
name: Koekemoer, A. M.
name: Kokorev, V.
name: Fevre, O. Le
name: Lilly, S.
name: Masters, D.
name: Magdis, G.
name: Mehta, V.
name: Peng, Y.
name: Riechers, D. A.
name: Salvato, M.
name: Sawicki, M.
name: Scarlata, C.
name: Scoville, N.
name: Shirley, R.
name: Sneppen, A.
name: Smolcic, V.
name: Steinhardt, C.
name: Stern, D.
name: Tanaka, M.
name: Taniguchi, Y.
name: Teplitz, H. I.
name: Vaccari, M.
name: Wang, W. -H.
name: Zamorani, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Cosmic Evolution Survey (COSMOS) has become a cornerstone of extragalactic astronomy. Since the last public catalog in 2015, a wealth of new imaging and spectroscopic data has been collected in the COSMOS field. This paper describes the collection, processing, and analysis of this new imaging data to produce a new reference photometric redshift catalog. Source detection and multi-wavelength photometry is performed for 1.7 million sources across the $2\,\mathrm{deg}^{2}$ of the COSMOS field, $\sim$966,000 of which are measured with all available broad-band data using both traditional aperture photometric methods and a new profile-fitting photometric extraction tool, The Farmer, which we have developed. A detailed comparison of the two resulting photometric catalogs is presented. Photometric redshifts are computed for all sources in each catalog utilizing two independent photometric redshift codes. Finally, a comparison is made between the performance of the photometric methodologies and of the redshift codes to demonstrate an exceptional degree of self-consistency in the resulting photometric redshifts. The $i<21$ sources have sub-percent photometric redshift accuracy and even the faintest sources at $25
description: 39 pages, 21 figures, accepted for publication in The Astrophysical Journal Supplement Series. Production of IRAC mosaics are presented in Moneti et al. "Euclid Preparation: XVIII. Cosmic Dawn Survey. Spitzer observations of the Euclid deep fields and calibration fields" which has been posted simultaneously. Catalogs can be accessed online now at https://cosmos2020.calet.org