cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Eigenspectra: A Framework for Identifying Spectra from 3D Eclipse Mapping
Creators: name: Mansfield, Megan
name: Schlawin, Everett
name: Lustig-Yaeger, Jacob
name: Adams, Arthur D.
name: Rauscher, Emily
name: Arcangeli, Jacob
name: Feng, Y. Katherina
name: Gupta, Prashansa
name: Keating, Dylan
name: Stevenson, Kevin B.
name: Beatty, Thomas G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planetary atmospheres are inherently 3D objects that can have strong gradients in latitude, longitude, and altitude. Secondary eclipse mapping is a powerful way to map the 3D distribution of the atmosphere, but the data can have large correlations and errors in the presence of photon and instrument noise. We develop a technique to mitigate the large uncertainties of eclipse maps by identifying a small number of dominant spectra to make them more tractable for individual analysis via atmospheric retrieval. We use the eigencurves method to infer a multi-wavelength map of a planet from spectroscopic secondary eclipse light curves. We then apply a clustering algorithm to the planet map to identify several regions with similar emergent spectra. We combine the similar spectra together to construct an "eigenspectrum" for each distinct region on the planetary map. We demonstrate how this approach could be used to isolate hot from cold regions and/or regions with different chemical compositions in observations of hot Jupiters with the James Webb Space Telescope (JWST). We find that our method struggles to identify sharp edges in maps with sudden discontinuities, but generally can be used as a first step before a more physically motivated modeling approach to determine the primary features observed on the planet.
description: 13 pages, 17 figures, accepted to MNRAS
ปริมาณความเข้มข้นและชนิดของกรดอินทรีย์ในเขตชุมชนและป่าชีวมณฑลสะแกราช
Creators: name: ขัตติยา สุขประเสริฐ
name: พจนีย์ ขุมมงคล
name: สุวิมล อัศวพิศิษฐ
Publisher: name: วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Year: 2556
Subjects: กรดอินทรีย์,แหล่งกำเนิดปฐมภูมิ,สารประกอบทุติยภูมิ

description: 1, 6, วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Volatility forecasting accuracy for Bitcoin
Creators: name: Köchling, Gerrit
name: Schmidtke, Philipp
name: Posch, Peter N.
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: bitcoin
subject: cryptocurrency
subject: GARCH
subject: volatility
subject: model confidence set
subject: robust loss function
subject: 310
subject: 330
subject: 620

description: We analyse the quality of Bitcoin volatility forecasting of GARCH-type models applying the commonly used volatility proxy based on squared daily returns as well as a jump-robust proxy based on intra-day returns and vary the degrees of asymmetry in robust loss functions. We construct model confidence sets (MCS) which contain superior models with a high probability and find them to be systematically smaller for asymmetric loss functions and the jump robust proxy. Our findings suggest a cautious use of GARCH models in forecasting Bitcoin's volatility.
description: Discussion Paper / SFB823;14/2019
การศึกษาองค์ประกอบของจุลธาตุในเขตชุมชนเมืองและเขตห่างไกลความเจริญ
Creators: name: วธู ครองสัตย์
name: พจนีย์ ขุมมงคล
name: สุวิมล อัศวพิศิษฐ
Publisher: name: วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Year: 2556
Subjects: จุลธาตุ,วิธีฟิลเตอร์แพค,แหล่งปล่อยจุลธาตุ

description: 1, 6, วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
การดูดซับสีย้อมเมทิลไวโอเลตโดยเรซินไคโตซานโซเดียมโดเดกซิลซัลเฟต
Creators: name: มัลลิกา โรจน์คงทรัพย์
name: หญิง อามาน
name: โกวิทย์ ปิยะมังคลา
Publisher: name: วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Year: 2556
Subjects: การดูดซับ,สีย้อม,เมทิลไวโอเลต,เรซินไคโตซานโซเดียมโดเดกซิลซัลเฟต

description: 1, 6, วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
On Léon van Hove's 1952 article on the foundations of Quantum Field Theory
Creators: name: Sbisà, Fulvio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In 1952, Léon van Hove published an article, in French, with the title ``Les difficultés de divergences pour um modèle particulier de champ quantifié''. The article is frequently cited in relation to Haag's theorem and to the issue of the existence of unitarily inequivalent representations of the canonical commutation relations in Quantum Field Theory. Summarizing in brief, it suggests a link between the appearance of divergences in perturbative Quantum Field Theory and the fact that quantum states belonging to an interacting theory do not belong to the same Hilbert space of the free theory. It also suggests that renormalization fails to provide an accurate description of the time evolution of the quantum field, although it correctly accounts for the S matrix. Due to its relevance, and to the difficulty of finding an English translation, the ideas contained in this article are proposed again here, expanded with derivations and accompanied by a discussion aimed at putting the analysis into context. We highlight the main points from the perspective of a contemporary reader, and underline the differences with the standard approach usually taught in curricular courses in Quantum Field Theory.
description: 46 pages, no figures, PDFLatex. Accepted for publication in RBEF
A ghost in the machine : the struggle for epistemological territory in chaos
Creators: name: Coffey, E. Elaine
Publisher: name: University of British Columbia
Year: 2009

description: This paper is a rhetorical examination of three works on the subject of chaos. The first two works discussed are the popular scientific texts "Order Out of Chaos: Man's New Dialogue with Nature", by Ilya Prigogine and Isabelle Stengers, and "Chaos: Making a New Science", by James Gleick. These two works, which cover the emergence of a new science of nonlinear dynamics, are analysed using Lawrence Prelli's topological criteria for scientific reasonableness, as outlined in his book A Rhetoric of Science. The third work discussed is N. Katherine Hayles' book "Chaos Bound", which is an interdisciplinary study of chaos as a cultural entity that was transformed by and has transformed our systems of knowledge in postmodern society. This paper is a discussion of the distinctions that Hayles' has drawn between Prigogine and Stengers' text and Gleick's. Hayles maintains that Prigogine and Stengers' text and Gleick's represent two branches of chaos science. This paper challenges that assumption, and offers an alternative explanation for the differences between Gleick's book and Prigogine and Stengers' book based on a rhetorical analysis of those two texts. This paper then goes on to suggest a reason for Hayles' portrayal of a split in chaos science based on her reading of Prigogine and Stengers and Gleick. It is suggested that Hayles' cultural model (taken from both science and literature) for the transmission of knowledge leads her to posit a split in science that might positively reflect on her own interdisciplinary study. After an analysis of Hayles' cultural model (illustrating the dynamics of culture through the terms ecology, economy, and equivocation), a suggestion is made for an extension of her model that could resolve the paradox which has led her to portray two branches of chaos science.
Latinx Spanish-speaking Students’ Experiences with Language and Race on Campus
Creators: name: Córdova, Ana Mitchell
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: race
language
Latinx
Spanish-speaker
college students

description: Prior research addresses the experiences of Latinx students and students of color on university campuses through the framework of Critical Race Theory and related frameworks, such as LatCrit (Jones, Castellanos, & Cole, 2002; Hurtado, 1992; Pascarella & Terenzini, 1991; Yosso, Smith, Ceja, & Solórzano, 2009). By centering the examination on Latinx students, we can see how intertwined language and race/ethnicity are; Spanish language usage becomes significantly connected to Latinidad. However, although Critical Race Theory provides space to address issues of language as an aspect of identity, as it is an interdisciplinary framework, research at the intersection of race and language within this context is lacking. The present study employs a raciolinguistic perspective, which theorizes the co-naturalization of language and race (Rosa & Flores, 2017) to examine the linguistic and racial experiences of Latinx-identifying, Spanish-speaking students at the University of Texas at Austin (UT Austin). This study examines how these students react to on-campus interactions, and perceive their racial/ethnic identities and Spanish language usage in relation to the campus social environment at large, and on a smaller level, the Spanish language classroom. To explore these questions, we had Latinx-identifying, Spanish-speaking students complete a survey about their linguistic background, educational experiences at UT Austin, racial and ethnic identification, and feeling towards others’ perceptions of themselves. Latinx student responses were compared based on whether they identified as people of color or white. I hypothesize that the subset of students of color in this group will report more negative feelings and discomfort in interactions on campus compared to their Latinx, white counterparts. Based on responses to perception-related questions, I also hypothesize that these students will report a more negative campus climate than their Latinx, white counterparts, who will report campus climate to be more positive despite their also identifying as Latinx. Thirdly, I hypothesize that language will have an impact on these students’ experiences, as opposed to no impact at all. Results are discussed in terms of how raciolinguistic ideologies permeate the experiences of Latinx, Spanish-speaking students at UT Austin according to Rosa and Flores’s (2017) stated components of a raciolinguistic perspective.
Non-local SFT Tachyon and Cosmology
Creators: name: Koshelev, Alexey S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cosmological scenarios built upon the generalized non-local String Field Theory and $p$-adic tachyons are examined. A general kinetic operator involving an infinite number of derivatives is studied as well as arbitrary parameter $p$. The late time dynamics of just the tachyon around the non-perturbative vacuum is shown to leave the cosmology trivial. A late time behavior of the tachyon and the scale factor of the FRW metric in the presence of the cosmological constant or a perfect fluid with $w>-1$ is constructed explicitly and a possibility of non-vanishing oscillations of the total effective state parameter around the phantom divide is proven.
description: 17 pages, LaTeX; v2: JHEP3 class is used, references added
Mahler measures and computations with regulators
Creators: name: Lalin, Matilde N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 11G55, 19F99

description: In this work we apply the techniques that were developed in [Lalin: An algebraic integration for Mahler measure] in order to study several examples of multivariable polynomials whose Mahler measure is expressed in terms of special values of the Riemann zeta function or Dirichlet L-series. The examples may be understood in terms of evaluations of regulators. Moreover, we apply the same techniques to the computation of generalized Mahler measures, in the sense of Gon and Oyanagi [Gon, Oyanagi: Generalized Mahler measures and multiple sine functions]
description: 5 figures
Cooperative long range protein-protein dynamics in Purple Membrane
Creators: name: Rheinstadter, Maikel C.
name: Schmalzl, Karin
name: Wood, Kathleen
name: Strauch, Dieter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We present experimental evidence for a long-range protein-protein interaction in purple membrane (PM). The interprotein dynamics were quantified by measuring the spectrum of the acoustic phonons in the 2D bacteriorhodopsin (BR) protein lattice using inelastic neutron scattering. Phonon energies of about 1 meV were determined. The data are compared to an analytical model, and the effective spring constant for the interaction between neighboring protein trimers are determined to be k=53 N/m. Additional, optical-like excitations at 0.45 meV were found and assigned to intraprotein dynamics between neighboring BR monomers.
description: Please check journal reference for accepted version of the paper
Experimental demonstration of stimulated polarization wave in a chain of nuclear spins
Creators: name: Lee, Jae-Seung
name: Adams, Travis
name: Khitrin, A. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A stimulated wave of polarization, which implements a simple mechanism of quantum amplification, is experimentally demonstrated in a chain of four J-coupled nuclear spins, irradiated by a weak radio-frequency transverse field. The "quantum domino" dynamics, a wave of flipped spins triggered by a flip of the first spin, has been observed in fully $^{13}$C-labeled sodium butyrate.
description: 8 pages including 3 figures
Pushing Boundaries: Exploring Zero Shot Object Classification with Large Multimodal Models
Creators: name: Islam, Ashhadul
name: Biswas, Md. Rafiul
name: Zaghouani, Wajdi
name: Belhaouari, Samir Brahim
name: Shah, Zubair
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: $ $The synergy of language and vision models has given rise to Large Language and Vision Assistant models (LLVAs), designed to engage users in rich conversational experiences intertwined with image-based queries. These comprehensive multimodal models seamlessly integrate vision encoders with Large Language Models (LLMs), expanding their applications in general-purpose language and visual comprehension. The advent of Large Multimodal Models (LMMs) heralds a new era in Artificial Intelligence (AI) assistance, extending the horizons of AI utilization. This paper takes a unique perspective on LMMs, exploring their efficacy in performing image classification tasks using tailored prompts designed for specific datasets. We also investigate the LLVAs zero-shot learning capabilities. Our study includes a benchmarking analysis across four diverse datasets: MNIST, Cats Vs. Dogs, Hymnoptera (Ants Vs. Bees), and an unconventional dataset comprising Pox Vs. Non-Pox skin images. The results of our experiments demonstrate the model's remarkable performance, achieving classification accuracies of 85\%, 100\%, 77\%, and 79\% for the respective datasets without any fine-tuning. To bolster our analysis, we assess the model's performance post fine-tuning for specific tasks. In one instance, fine-tuning is conducted over a dataset comprising images of faces of children with and without autism. Prior to fine-tuning, the model demonstrated a test accuracy of 55\%, which significantly improved to 83\% post fine-tuning. These results, coupled with our prior findings, underscore the transformative potential of LLVAs and their versatile applications in real-world scenarios.
description: 5 pages,6 figures, 4 tables, Accepted on The International Symposium on Foundation and Large Language Models (FLLM2023)
Sprayable Thin and Robust Carbon Nanofiber Composite Coating for Extreme Jumping Dropwise Condensation Performance
Creators: name: Donati, Matteo
name: Lam, Cheuk Wing Edmond
name: Milionis, Athanasios
name: Sharma, Chander Shekhar
name: Tripathy, Abinash
name: Zendeli, Armend
name: Poulikakos, Dimos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Condensation of water on metallic surfaces is critical for multiple energy conversion processes. Enhancement in condensation heat transfer efficiency often requires surface texturing and hydrophobicity, usually achieved through coatings, to maintain dropwise condensation. However, such surface treatments face conflicting challenges of minimal coating thermal resistance, enhanced coating durability and scalable fabrication. Here we present a thin (~ 2 μm) polytetrafluoroethylene - carbon nanofiber nanocomposite coating which meets these challenges and sustains coalescence-induced jumping droplet condensation for extended periods under highly demanding condensation conditions. Coating durability is achieved through improved substrate adhesion by depositing a sub-micron thick aluminum primer layer. Carbon nanofibers in a polytetrafluoroethylene matrix increase coating thermal conductivity and promote spontaneous surface nano-texturing to achieve superhydrophobicity for condensate microdroplets. The coating material can be deposited through direct spraying, ensuring economical scalability and versatility for a wide range of substrates. We know of no other coating for metallic surfaces that is able to sustain jumping dropwise condensation under shear of steam at 111 degC flowing at ~ 3 m s-1 over the surface for 10 hours and dropwise condensation for an additional 50 hours. Up to ~ 900% improvement in condensation heat transfer coefficient is achieved compared to conventional filmwise condensation.
title: ความคาดหวังในการเข้ารับบริการของผู้ป่วยที่มารับการรักษา โรคข้อเข่าเสื่อมด้วยวิธีการผ่าตัดเปลี่ยนข้อเข่าเทียม
Creators: name: รังสิมา เกียรติยุทธชาติ
name: พิมพ์รัตน์ ชาญปรีชญา
name: ธนพล จันทรพร
name: ชลภัสสรณ์ เอื้อธนิกกานนท์
Publisher: name: Mahidol University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: ประสบการณ์ของผู้ป่วย
ความคาดหวังของผู้ป่วย
การผ่าตัดเปลี่ยนหัวข้อเข่าเทียม

description: Mahidol R2R e-Journal, 12, 1, 112-126
Three-body recombination of ultracold Bose gases using the truncated Wigner method
Creators: name: Norrie, A. A.
name: Ballagh, R. J.
name: Gardiner, C. W.
name: Bradley, A. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We apply the truncated Wigner method to the process of three-body recombination in ultracold Bose gases. We find that within the validity regime of the Wigner truncation for two-body scattering, three-body recombination can be treated using a set of coupled stochastic differential equations that include diffusion terms, and can be simulated using known numerical methods. As an example we investigate the behaviour of a simple homogeneous Bose gas.
description: Replaced paper same as original; correction to author list on cond-mat made
Direct measurement of penetration length in ultra-thin and/or mesoscopic superconducting structures
Creators: name: Hao, L.
name: Macfarlane, J. C.
name: Gallop, J. C.
name: Lam, S. K. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We describe a method for direct measurement of the magnetic penetration length in thin (10 - 100 nm) superconducting structures having overall dimensions in the range 1 to 100 micrometers. The method is applicable for broadband magnetic fields from dc to MHz frequencies.
description: Accepted by Journal of Applied P:hysics (Jun 2006).5 pages, 5 figures
title: Numerical simulation of impaction - deposition of micro-nano particles in internal complex geometry aerosol flows
title: Αριθμητική προσομοίωση πρόσκρουσης εναπόθεσης μίκρο-νάνο σωματιδίων σε εσωτερικές ροές αερολύματος πολύπλοκης γεωμετρίας
titleType: AlternativeTitle
Creators: name: Makris, Evangelos A.
Publisher: name: National Technological University of Athens
Year: 2013
Subjects: Υπολογιστική ρευστομηχανική
Γένεση πλέγματος
Σωματίδια
Εξατομοικευμένη ιατρική μοντελοποίηση
Ροες αερολύματος
Computational Fluid Dynamics (CFD)
Grid generation
Particles
Patient specific
Aerosol flows

description: 187 σ.
description: Η παρούσα διατριβή μελετά τη μεταφορά και εναπόθεση σωματιδίων σε ροές αερολύματος στο εσωτερικό πολύπλοκων γεωμετριών. Για να προσεγγιστεί αριθμητικά το φυσικό πρόβλημα της μεταφοράς και εναπόθεσης σωματιδίων σε ροές αερολύματος πολύπλοκης γεωμετρίας, πρέπει κανείς να αντιμετωπίσει την πρόκληση της δημιουργίας ενός υπολογιστικού χωρίου σύνθετης γεωμετρίας και υψηλής ποιότητας. Επιπλέον, η μεταφορά και εναπόθεση σωματιδίων πρέπει να αναπαρασταθεί με έναν φυσικά έγκυρο τρόπο με τη χρήση μερικών διαφορικών εξισώσεων. Στην παρούσα διατριβή προτείνεται μια νέα μέθοδος για την παραγωγή ενός υψηλής ποιότητας δομημένου πλέγματος, το οποίο αναπαράγει με πιστότητα την γεωμετρία των ανθρώπινων οργάνων, ξεκινώντας από δεδομένα ιατρικά απεικόνισης. Επιπλέον, διερευνώνται οι μηχανισμοί που διέπουν τις αλληλεπιδράσεις σωματιδίων - ρευστών χρησιμοποιώντας τεχνικές της μηχανικής των ρευστών και εισάγεται μια περαιτέρω βελτίωση σε ένα ήδη υπάρχον μοντέλο μεταφοράς και εναπόθεσης σωματιδίων.
description: The numerical simulation of impaction – deposition of micro-nano particles in internal complex geometry aerosol flows is the main objective of this dissertation. In order to numerically approach the physical problem of particle transfer and deposition in internal aerosol flows of complex geometries, one has to deal with the challenge of creating a complex geometrical computational domain that permit a numerical simulation to be efficiently performed. Furthermore the particular Particle Differential Equations (PDEs) describing particle transport and deposition in an accurate, elaborated and physically valid way have to be formulated and solved, as a rule numerically. In this study a new method that produces a high quality structured grid, which faithfully reproduces the geometry of the human organs, starting from medical imaging data is proposed. Furthermore, the investigation of the mechanisms that govern particle transport and deposition by using techniques of fluid mechanics and the introduction of a further improvement to an existing transport and deposition particle model is done.
A Virgo Environmental Survey Tracing Ionised Gas Emission. VESTIGE VIII. Bridging the cluster-ICM-galaxy evolution at small scales
Creators: name: Longobardi, A.
name: Boselli, A.
name: Fossati, M.
name: Villa-Vélez, J. A.
name: Bianchi, S.
name: Casasola, V.
name: Sarpa, E.
name: Combes, F.
name: Hensler8, G.
name: Burgarella, D.
name: Schimd, C.
name: Nanni, A.
name: Côté, P.
name: Buat1, V.
name: Amram, P.
name: Ferrarese, L.
name: Braine, J.
name: Trinchieri, G.
name: Boissier, S.
name: Boquien, M.
name: Andreani, P.
name: Gwyn, S.
name: Cuillandre, J. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We measure FIR emission from tails of stripped dust following the ionised and atomic gas components in galaxies undergoing ram pressure stripping. We study the dust-to-gas relative distribution and mass ratio in the stripped interstellar medium and relate them to those of the intra-cluster medium, thus linking the cluster-ICM-galaxy evolution at small-scales. The galaxy sample consists of three Scd Virgo galaxies with stellar masses in the range $10^9\lesssim \mathrm{M_{*}} \lesssim 10^{10}\, \mathrm{M_{\odot}}$, and within 1 Mpc from the cluster centre, namely NGC 4330, NGC 4522, and NGC 4654. Through the analysis of VESTIGE H$α$, $Herschel$ SPIRE far-infrared, and VIVA HI data, we trace the spatial distribution of the tails and infer the dust and gas masses from the measured far-infrared 250 $μ$m and HI flux densities. Dust-to-gas mass ratios (DGRs) in the tails are analysed as a function of the galaxy mass, metallicity, and dust temperature. Along the stripped component, the dust distribution closely follows the HI and H$α$ emitting gas, all extending beyond the optical disc. In these regions, the DGRs are $2.0\pm0.6\times10^{-3}$, $0.7\pm0.1\times10^{-3}$, and $0.4\pm0.03\times10^{-3}$, for NGC 4330, NGC 4522, and NGC 4654, respectively, i.e. up to a factor of 15 less than the values measured in the main body of nearby galaxies. We also find a negative trend in the DGR as a function of the metallicity that can be explained in terms of a dust component more centrally concentrated in more metal-rich systems. Together with the finding that the stripped dust is cold, $T_{d} \lesssim 25\, K$, our results support an outside-in stripping scenario of the galaxy interstellar medium. This study shows that ram pressure stripping is a key mechanism in the building up of the Virgo intra-cluster component injecting dust grains into the ICM, thus contributing to its metal enrichment.
description: 15 pages, 7 images, 4 tables. Accepted on A\&A
Adaptive Synthetic Characters for Military Training
Creators: name: Ustun, Volkan
name: Kumar, Rajay
name: Reilly, Adam
name: Sajjadi, Seyed
name: Miller, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Behaviors of the synthetic characters in current military simulations are limited since they are generally generated by rule-based and reactive computational models with minimal intelligence. Such computational models cannot adapt to reflect the experience of the characters, resulting in brittle intelligence for even the most effective behavior models devised via costly and labor-intensive processes. Observation-based behavior model adaptation that leverages machine learning and the experience of synthetic entities in combination with appropriate prior knowledge can address the issues in the existing computational behavior models to create a better training experience in military training simulations. In this paper, we introduce a framework that aims to create autonomous synthetic characters that can perform coherent sequences of believable behavior while being aware of human trainees and their needs within a training simulation. This framework brings together three mutually complementary components. The first component is a Unity-based simulation environment - Rapid Integration and Development Environment (RIDE) - supporting One World Terrain (OWT) models and capable of running and supporting machine learning experiments. The second is Shiva, a novel multi-agent reinforcement and imitation learning framework that can interface with a variety of simulation environments, and that can additionally utilize a variety of learning algorithms. The final component is the Sigma Cognitive Architecture that will augment the behavior models with symbolic and probabilistic reasoning capabilities. We have successfully created proof-of-concept behavior models leveraging this framework on realistic terrain as an essential step towards bringing machine learning into military simulations.
title: ความคาดหวังและความพึงพอใจของบุคลากรสายวิชาการต่อการสนับสนุนการปฏิบัติงานในคณะพยาบาลศาสตร์ มหาวิทยาลัยมหิดล
Creators: name: แสงเดือน พรหมจันทร์
name: ฐิติวัชร พึ่งเงิน
Publisher: name: Mahidol University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: ความคาดหวัง
ความพึงพอใจ
การสนับสนุนการปฏิบัติงาน

description: Mahidol R2R e-Journal, 12, 1, 127-141
Shear strength of Canadian softwood structural lumber
Creators: name: Yee, Hon Wing
Publisher: name: University of British Columbia
Year: 2009

description: An experimental study has been conducted to evaluate the longitudinal shear strength of Canadian softwood structural lumber using a two span five point bending test procedure. Nominal 38mm x 185mm Douglas-Fir, nominal 38mm x 185mm and nominal 38mm x 285mm Hem-Fir and Spruce-Pine-Fir boards have been considered. Flat-wise and edge-wise modulus of elasticity tests have been conducted for each specimens prior to the destructive shear tests. A two span five point bending test procedure has been chosen because of its ability to produce a relatively high percentage of longitudinal shear failures. Approximately 40% of the failures can be attributed to shear failures in the nominal 38 mm x 185 mm and 30% in the nominal 38 mm x 285 mm specimens. Two test configurations have been considered: test span to specimen depth ratios of 6:1 and 5:1. American Society for Testing and Materials (ASTM) shear block tests have also been conducted to evaluate the shear strength of small clear specimens. Based on the ASTM shear block test and the edge-wise modulus of elasticity results, a linear elastic finite element analysis coupled with Weibull weakest link theory has been used to predict the shear failure loads at different levels of failure probability. Good agreement between predicted and measured failure loads at different probability of failure levels for the different sizes and spans of each species have been observed. Predictions from the finite element and size effect analysis procedures have been compared to an empirical approach for predicting longitudinal shear resistance in sawn lumber and glued laminated beams proposed by the US Forest Products Laboratory. The US proposed design equation tends to overestimate the longitudinal shear resistance of the full size beam results obtained from this study. In lower grades of dimension lumber, shear failures do not govern because the bending to shear strength ratio is usually significantly lower as compared to the Select Structural grade material. Therefore in the lower quality dimension lumber, bending failure mode would most likely dominate.
A wide-range wavelength-tunable photon-pair source for characterizing single-photon detectors
Creators: name: Shen, Lijiong
name: Lee, Jianwei
name: Hartanto, Antony Winata
name: Tan, Pengkian
name: Kurtsiefer, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The temporal response of single-photon detectors is usually obtained by measuring their impulse response to short-pulsed laser sources. In this work, we present an alternative approach using time-correlated photon pairs generated in spontaneous parametric down-conversion (SPDC). By measuring the cross-correlation between the detection times recorded with an unknown and a reference photodetector, the temporal response function of the unknown detector can be extracted. Changing the critical phase-matching conditions of the SPDC process provides a wavelength-tunable source of photon pairs. We demonstrate a continuous wavelength-tunability from 526 nm to 661 nm for one photon of the pair, and 1050 nm to 1760 nm for the other photon. The source allows, in principle, to access an even wider wavelength range by simply changing the pump laser of the SPDC-based source. As an initial demonstration, we characterize single photon avalance detectors sensitive to the two distinct wavelength bands, one based on Silicon, the other based on Indim Gallium Arsenide.
description: 10 pages, 8 figures
Charm Leptonic and Semileptonic Decays
Creators: name: Zweber, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Experimental results for the pseudoscalar decay constants f_{D} and f_{D_s} are reviewed. Semileptonic form factor results from D -> (pseudoscalar) l nu and D -> (vector) l nu decays are also reviewed.
description: 8 pages, 4 figures, presented at the 11th International Conference on B-Physics at Hadron Machines (BEAUTY 2006) Sept. 25-29, Oxford, England; corrected typos
Predicted concentrations of polychlorinated dibenzo-p-dioxins and furans in fat tissue due to chlorophenate exposure in B.C. sawmills
Creators: name: Campbell, Catherine Ann
Publisher: name: University of British Columbia
Year: 2009

description: Chlorophenols were used to prevent sapstain fungal growth on lumber in sawmills located in Canada, the United States Scandinavia, and elsewhere, from the 1940s to the late 1980s. Elevated levels of chlorophenols have been measured in the urine of sawmill workers particularly those with dermal exposure. Since polychlorinated dibenzodioxins (PCDDs) and furans (PCDFs) are contaminants created in the manufacture of chlorophenols, it is expected that sawmill workers were exposed. PCDD/Fs have half-lives on the order of years and accumulate in adipose tissue. Biological monitoring is not easily carried out due to its invasive nature and cost, consequently little information exists on PCDD/F levels in sawmill workers. In a cohort of Canadian sawmill workers assembled for a cancer incidence and mortality study, we estimated the adipose tissue concentrations of PCDD/F compounds, using a singlecompartment pharmacokinetic model. Estimates of dermal and inhalation exposure to chlorophenols throughout the working lives of the sawmill workers were combined with PCDD/F contamination levels, half-lives, and absorption efficiencies to estimate tissue concentrations. Each variable in the model was assigned a distribution based on literaturereported data, as well as information about the sawmill cohort. The predicted distributions of PCDD/F concentrations were then estimated using 5,000-run Monte Carlo analyses. Predicted median adipose tissue concentrations of all dioxins and tetra- and penta-chlorinated furans among the sawmill workers were similar to background levels in unexposed residents of the same region, though about 10 to 30% of sawmill workers were estimated to have elevated levels of these congeners. Median levels of hexa-, hepta-, and octa-chlorinated furans were predicted to be 2 to 15 times background levels. Sensitivity analyses indicate that the variability of the model predictions was most influenced by estimates of PCDD/F skin absorption efficiency, duration of employment at the sawmill, and levels of PCDD/F in chlorophenols.
Constraining the nonanalytic terms in the isospin-asymmetry expansion of the nuclear equation of state
Creators: name: Wen, Pengsheng
name: Holt, Jeremy W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We examine the properties of the isospin-asymmetry expansion of the nuclear equation of state from chiral two- and three-body forces. We focus on extracting the high-order symmetry energy coefficients that consist of both normal terms (occurring with even powers of the isospin asymmetry) as well as terms involving the logarithm of the isospin asymmetry that are formally nonanalytic around the expansion point of isospin-symmetric nuclear matter. These coefficients are extracted from numerically precise perturbation theory calculations of the equation of state coupled with a new set of finite difference formulas that achieve stability by explicitly removing the effects of higher-order terms in the expansion. We consider contributions to the symmetry energy coefficients from both two- and three-body interactions. It is found that the coefficients of the logarithmic terms are generically larger in magnitude than those of the normal terms from second-order perturbation theory diagrams, but overall the normal terms give larger contributions to the ground state energy. The high-order isospin-asymmetry terms are especially relevant at large densities where they affect the proton fraction in beta-equilibrium matter.
description: 12 pages, 11 figures
Demystifying an unidentified EGRET source by VHE gamma-ray observations
Creators: name: Reimer, Olaf
name: Funk, Stefan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a novel approach in observational high-energy gamma-ray astronomy, observations carried out by imaging atmospheric Cherenkov telescopes provide necessary templates to pinpoint the nature of intriguing, yet unidentified EGRET gamma-ray sources. Using GeV-photons detected by CGRO EGRET and taking advantage of high spatial resolution images from H.E.S.S. observations, we were able to shed new light on the EGRET observed gamma-ray emission in the Kookaburra complex, whose previous coverage in the literature is somewhat contradictory. 3EGJ1420-6038 very likely accounts for two GeV gamma-ray sources (E>1 GeV), both in positional coincidence with the recently reported pulsar wind nebulae (PWN) by HESS in the Kookaburra/Rabbit complex. PWN associations at VHE energies, supported by accumulating evidence from observations in the radio and X-ray band, are indicative for the PSR/plerionic origin of spatially coincident, but still unidentified Galactic gamma-ray sources from EGRET. This not only supports the already suggested connection between variable, but unidentified low-latitude gamma-ray sources with pulsar wind nebulae (3EGJ1420-6038 has been suggested as PWN candidate previoulsy), it also documents the ability of resolving apparently confused EGRET sources by connecting the GeV emission as measured from a large-aperture space-based gamma-ray instrument with narrow field-of-view but superior spatial resolution observations by ground-based atmospheric Cherenkov telescopes, a very promising identification technique for achieving convincing individual source identifications in the era of GLAST-LAT.
description: 4 pages, 5 figures, Accepted for publication in Astrophysics and Space Science, Proc. of "The Multi-Messenger Approach to High-Energy Gamma-ray Sources (Third Workshop on the Nature of Unidentified High-Energy Sources)", Barcelona, July 4-7, 2006, one typo corrected
A Note on the Depth-from-Defocus Mechanism of Jumping Spiders
Creators: name: Nolte, Aleke
name: Hennes, Daniel
name: Izzo, Dario
name: Blum, Christian
name: Hafner, Verena
name: Gheysens, Tom
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: depth estimation
subject: depth-from-defocus
subject: computer vision
subject: spider vision
subject: spider eye
subject: 570 Biowissenschaften; Biologie

description: Jumping spiders are capable of estimating the distance to their prey relying only on the information from one of their main eyes. Recently, it has been shown that jumping spiders perform this estimation based on image defocus cues. In order to gain insight into the mechanisms involved in this blur-to-distance mapping as performed by the spider and to judge whether inspirations can be drawn from spider vision for depth-from-defocus computer vision algorithms, we constructed a three-dimensional (3D) model of the anterior median eye of the Metaphidippus aeneolus, a well studied species of jumping spider. We were able to study images of the environment as the spider would see them and to measure the performances of a well known depth-from-defocus algorithm on this dataset. We found that the algorithm performs best when using images that are averaged over the considerable thickness of the spider’s receptor layers, thus pointing towards a possible functional role of the receptor thickness for the spider’s depth estimation capabilities.
การใช้ยาต้านจุลชีพของนักศึกษาในระดับอุดมศึกษา
Creators: name: พิมพร ทองเมือง
Publisher: name: วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Year: 2556
Subjects: การใช้ยาต้านจุลชีพ,นักศึกษาระดับอุดมศึกษา

description: 1, 6, วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
YOSH TADBIRKORLARNI QO'LLAB-QUVVATLASH TIZIMINI TAKOMILLASHTIRISH
Creators: name: Toshkent tumani 1 - son kasb hunar maktabi iqtisod o'quvchisi Igamberdiyeva Sayyora
Publisher: name: Zenodo
Year: 2024

description: Yoshlarning tadbirkorlikka oid tashabbuslari, startap-loyihalari va amaliy tadqiqotlari natijalarini ro’yobga chiqarilishiga ko’maklashish, yosh tadbirkorlik subhektlarining sanoat va xizmat ko’rsatish sohalaridagi loyihalarini har tomonlama qo’llab-quvvatlash O’zbekiston Respublikasi milliy iqtisodiyotini rivojlantirishga asosiy yo’nalishlarning biriga aylanib ulgurdi. Yoshlar sanoat va tadbirkorlik zonalarini tashkil qilishdan quyidagi pirovard natijalarga erishish kutilmoqda: yoshlarga tadbirkorlik faoliyatini boshlashi va yuritishlari uchun Yoshlar sanoat zonalari hududida ishlab chiqarish maydonlari taqdim etish orqali ularni tadbirkorlik faoliyatiga keng jalb qilish; yoshlarga ularning sanoat va xizmat ko’rsatish yo’nalishidagi loyihalari, tashabbuslari va g’oyalari amalga oshirilishida ko’maklashish va qulay shartsharoitlar yaratish; “startaplar” tashkil etish maqsadida biznes-inkubator vazifalarini amalga oshirish, yosh tadbirkorlik subhektlarining faoliyatini barqaror rivojlantirish va raqobatbardoshligini oshirish; yoshlarga o’z innovatsion ishlanmalarini ishlab chiqarish jarayoniga joriy etish va natijalarini tijoratlashtirish, yirik sanoat korxonalari bilan kooperatsiya aloqalarini o’rnatish borasida amaliy yordam ko’rsatish; band bo’lmagan, shu jumladan «Yoshlar daftari»ga kiritilgan yoshlarni ish bilan tahminlash va ularning ijtimoiy-iqtisodiy faolligini oshirish hisoblanadi.

Kalit so’zlari: Yoshlar, tadbirkorlik, mablag”, moliyalashtirish, jamg’arma, loyiha, valyuta, kredit, maxsulot, ishlab chiqarish
Tunable Fiber Fabry-Perot Cavities with High Passive Stability
Creators: name: Saavedra, Carlos
name: Pandey, Deepak
name: Alt, Wolfgang
name: Pfeifer, Hannes
name: Meschede, Dieter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present three high finesse tunable monolithic fiber Fabry-Perot cavities (FFPCs) with high passive mechanical stability. The fiber mirrors are fixed inside slotted glass ferrules, which guarantee an inherent alignment of the resonators. An attached piezoelectric element enables fast tuning of the FFPC resonance frequency over the entire free-spectral range for two of the designs. Stable locking of the cavity resonance is achieved for feedback bandwidths as low as $20\,$mHz, demonstrating the high passive stability. At the other limit, locking bandwidths up to $27\,$kHz, close to the first mechanical resonance, can be obtained. The root-mean-square frequency fluctuations are suppressed down to $\sim 2\,$% of the cavity linewidth. Over a wide frequency range, the frequency noise is dominated by the thermal noise limit of the system's mechanical resonances. The demonstrated small footprint devices can be used advantageously in a broad range of applications like cavity-based sensing techniques, optical filters or quantum light-matter interfaces.
description: 9 pages, 6 figures
Photoionized Herbig-Haro objects in the Orion Nebula through deep high-spectral resolution spectroscopy I: HH529II and III
Creators: name: Méndez-Delgado, J. E.
name: Esteban, C.
name: García-Rojas, J.
name: Henney, W. J.
name: Mesa-Delgado, A.
name: Arellano-Córdova, K. Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the analysis of physical conditions, chemical composition and kinematic properties of two bow shocks -HH529 II and HH529 III- of the fully photoionized Herbig-Haro object HH 529 in the Orion Nebula. The data were obtained with the Ultraviolet and Visual Echelle Spectrograph at the 8.2m Very Large Telescope and 20 years of Hubble Space Telescope imaging. We separate the emission of the high-velocity components of HH529 II and III from the nebular one, determining $n_{\rm e}$ and $T_{\rm e}$ in all components through multiple diagnostics, including some based on recombination lines (RLs). We derive ionic abundances of several ions, based on collisionally excited lines (CELs) and RLs. We find a good agreement between the predictions of the temperature fluctuation paradigm ($t^2$) and the abundance discrepancy factor (ADF) in the main emission of the Orion Nebula. However, $t^2$ can not account for the higher ADF found in HH 529 II and III. We estimate a 6% of Fe in the gas-phase of the Orion Nebula, while this value increases to 14% in HH 529 II and between 10% and 25% in HH 529 III. We find that such increase is probably due to the destruction of dust grains in the bow shocks. We find an overabundance of C, O, Ne, S, Cl and Ar of about 0.1 dex in HH 529 II-III that might be related to the inclusion of H-deficient material from the source of the HH 529 flow. We determine the proper motions of HH 529 finding multiple discrete features. We estimate a flow angle with respect to the sky plane of $58\pm 4^{\circ}$ for HH 529.
description: 38 pages
Topological analysis of chemical bonding in the layered FePSe3 upon pressure-induced phase transitions
Creators: name: Evarestov, Robert A.
name: Kuzmin, Alexei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Two pressure-induced phase transitions have been theoretically studied in the layered iron phosphorus triselenide (FePSe3). Topological analysis of chemical bonding in FePSe3 has been performed based on the results of first-principles calculations within the periodic linear combination of atomic orbitals (LCAO) method with hybrid Hartree-Fock-DFT B3LYP functional. The first transition at about 6 GPa is accompanied by the symmetry change from R-3 to C2/m, whereas the semiconductor-to-metal transition (SMT) occurs at about 13 GPa leading to the symmetry change from C2/m to P-31m. We found that the collapse of the band gap at about 13 GPa occurs due to changes in the electronic structure of FePSe3 induced by relative displacements of phosphorus or selenium atoms along the c-axis direction under pressure. The results of the topological analysis of the electron density and its Laplacian demonstrate that the pressure changes not only the interatomic distances but also the bond nature between the intralayer and interlayer phosphorus atoms. The interlayer P-P interactions are absent in two non-metallic FePSe3 phases while after SMT the intralayer P-P interactions weaken and the interlayer P-P interactions appear.
description: arXiv admin note: text overlap with arXiv:2002.10419
สื่อหนังตะลุงแอนิเมชัน 2 มิติ เพื่อการโฆษณาบริการ 3G และ Wi-Net ผ่านอุปกรณ์มือถือ
Creators: name: นัยณา แก้วบ้านดอน
name: ฐิติมา ไกรทอง
name: พรรณธิภา แดงสว่าง
Publisher: name: วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Year: 2556
Subjects: สื่อหนังตะลุงแอนิเมชัน 2มิติ,อุปกรณ์มือถือ,ระบบปฏิบัติการแอนดรอยด์,บริการ 3G และ Wi-Net

description: 1, 6, วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
What Do Large Language Models Know? Tacit Knowledge as a Potential Causal-Explanatory Structure
Creators: name: Budding, Céline
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: It is sometimes assumed that Large Language Models (LLMs) know language, or for example that they know that Paris is the capital of France. But what -- if anything -- do LLMs actually know? In this paper, I argue that LLMs can acquire tacit knowledge as defined by Martin Davies (1990). Whereas Davies himself denies that neural networks can acquire tacit knowledge, I demonstrate that certain architectural features of LLMs satisfy the constraints of semantic description, syntactic structure, and causal systematicity. Thus, tacit knowledge may serve as a conceptual framework for describing, explaining, and intervening on LLMs and their behavior.
description: Accepted for publication in Philosophy of Science
สภาวะที่เหมาะสมในการสกัดแอสตาแซนทินจากหัวกุ้ง โดยใช้เอนไซม์ปาเปนร่วมกับน้ำมันรำข้าว
Creators: name: ธรรมรัตน์ แสงหิรัญ
name: สุทัศน์ สุระวัง
Publisher: name: วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี
Year: 2556
Subjects: แอสตาแซนทิน,หัวกุ้ง,เอนไซม์ปาเปน,น้ำมันรำข้าว

description: 1, 6, วารสารวิจัย มสด สาขาวิทยาศาสตร์และเทคโนโลยี