cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: A Synthetic Biological Engineering Approach to Secretion- Based Recovery of Polyhydroxyalkanoates and Other Cellular Products
Creators: name: Linton, Elisabeth
Publisher: name: Utah State University
Year: 2010

description: The costs associated with cellular product recovery commonly account for as much as 80% of the total production expense. As a specific example, significant recovery costs limit commercial use of polyhydroxyalkanoates (PHA), which comprise a class of microbially-accumulated polyesters. PHAs are biodegradable compounds that are of interest as a sustainable alternative to petrochemically-derived plastics. Secretion-based recovery of PHAs was studied to decrease PHA production costs. Type I and II secretory pathways are commonly used for the translocation of recombinant proteins out of the cytoplasm of E. coli. Proteins were targeted for translocation using four signal peptides (HlyA, TorA, GeneIII, and PelB) that operate via type I and II secretory machinery. GFP translocation was investigated in parallel due to its relative ease of monitoring to gather information about the functionality of signal peptide sequences. The translocation of phasin was investigated because of its physical binding interaction with the PHA granule surface. Genetic fusion of phasin with targeting signal peptides creates a PHA-phasin-signal peptide complex that can then be potentially used for cellular export. An important design aspect of this investigation is that synthetic biological engineering principles and standardized technical formats BBF RFC 10 and BBF RFC 23 were applied for more efficient construction of genetic devices. As an additional part of this study, an 1H NMR-based PHA quantification method was developed to facilitate analysis of intracellular PHAs. Overall, this study demonstrated that the BioBrick model can be used to construct functional devices that promote secretion of cellular compounds. The information gathered from this work can be further optimized and applied to more complex cellular manufacturing systems.
Self-Assembly of Infinite Structures
Creators: name: Patitz, Matthew J.
name: Summers, Scott M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We review some recent results related to the self-assembly of infinite structures in the Tile Assembly Model. These results include impossibility results, as well as novel tile assembly systems in which shapes and patterns that represent various notions of computation self-assemble. Several open questions are also presented and motivated.
title: Terrestrial Ecosystem Classification in the Rocky Mountains, Northern Utah
Creators: name: Kusbach, Antonin
Publisher: name: Utah State University
Year: 2010

description: Currently, there is no comprehensive terrestrial ecosystem classification for the central Rocky Mountains of the United States. A comprehensive classification of terrestrial ecosystems in a mountainous study area in northern Utah was developed incorporating direct gradient analysis, spatial hierarchy theory, the zonal concept, and concepts of diagnostic species and fidelity, together with the biogeoclimatic ecosystem classification approach used in British Columbia, Canada. This classification was derived from vegetation and environmental sampling of both forest and non-forest ecosystems. The SNOwpack TELemetry (SNOTEL) and The National Weather Service (NWS) Cooperative Observer Program (COOP) weather station network were used to approximate climate of 163 sample plots. Within the large environmental diversity of the study area, three levels of ecosystem organization were distinguished: (1) macroclimatic - regional climate; (2) mesoclimatic, accounting for local climate and moisture distribution; and (3) edaphic - soil fertility. These three levels represent, in order, the L+1, L, and L-1 levels in a spatial hierarchy. Based on vegetation physiognomy, climatic data, and taxonomic classification of zonal soils, two vegetation geo-climatic zones were identified at the macroclimatic (L+1) level: (1) montane zone with Rocky Mountain juniper and Douglas-fir; and (2) subalpine zone with Engelmann spruce and subalpine fir as climatic climax species. A vegetation classification was developed by combining vegetation samples (relevés) into meaningful vegetation units. A site classification was developed, based on dominant environmental gradients within the subalpine vegetation geo-climatic zone. Site classes were specified and a site grid was constructed. This site classification was coupled with the vegetation classification. Each plant community was associated with its environmental space within the site grid. This vegetation-site overlay allowed ecosystems to be differentiated environmentally and a structure, combining zonal, vegetation, and site classifications, forms a comprehensive ecosystem classification. Based on assessment of plant communities' environmental demands and site vegetation potential, the comprehensive classification system enables inferences about site history and successional status of ecosystems. This classification is consistent with the recent USDA, Forest Service ECOMAP and Terrestrial Ecological Unit Inventory structure and may serve as a valuable tool not only in vegetation, climatic, or soil studies but also in practical ecosystem management.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ CRM-ÑÐ¸ÑÑÐµÐ¼Ñ Ð´Ð»Ñ Ð¿Ð¾Ð´ÑÐ°Ð·Ð´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿Ð¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¿ÑÐ¸ÐºÐ»Ð°Ð´Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÑÐµÐºÐ¾Ð², Ð Ð¾Ð¼Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
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description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ° Ð¾ÑÐ½Ð¾ÑÐ¸ÑÑÑ Ðº Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼ Ð´Ð»Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¹ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ñ ÐºÐ»Ð¸ÐµÐ½ÑÐ°Ð¼Ð¸. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð° Ð¾Ð±Ð»Ð°ÑÑÑ CRM-ÑÐ¸ÑÑÐµÐ¼, Ð¸Ð·ÑÑÐµÐ½Ð° Ð¸Ñ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ Ð¸ Ð²Ð¸Ð´Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÑ ÑÐµÑÐµÐ½Ð¸Ð¹. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ðµ ÑÐ¸Ð¿Ð¾Ð²ÑÐµ ÑÐµÑÐµÐ½Ð¸Ñ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸Ñ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÑÐ¾ÑÐ¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ðº ÑÐ¸ÑÑÐµÐ¼Ðµ Ð±ÑÐ»Ð° ÑÐ¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¿Ð¾Ð´ÑÐ°Ð·Ð´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿Ð¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¿ÑÐ¸ÐºÐ»Ð°Ð´Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ. ÐÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ñ ÑÑÐ°Ð¿Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¹ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ CRM-ÑÐ¸ÑÑÐµÐ¼Ñ - Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð±Ð°Ð·Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÐºÐ»Ð¸ÐµÐ½ÑÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ. Ð Ð·Ð°ÐºÐ»ÑÑÐµÐ½Ð¸Ðµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ Ð¸ Ð¿Ð¾Ð´Ð²ÐµÐ´ÐµÐ½Ñ Ð¸ÑÐ¾Ð³Ð¸ Ð¾Ð± ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ.
title: Pulsed-Laser Excited Photothermal Study of Glasses and Nanoliter Cylindrical Sample Cell Based on Thermal Lens Spectroscopy
Creators: name: Joshi, Prakash Raj
Publisher: name: Utah State University
Year: 2010

description: The research in this dissertation presents Pulsed-Laser Excited photothermal studies of optical glasses and cylindrical sample cell. First, a study of a photothermal lens experiment and the finite element analysis modeling for commercial colored glass filters is done. The ideal situation of a semiinfinite cylinder approximate model used to describe the photothermal lens experiment requires the boundary condition that there is no transfer of heat from the glass to surrounding when the glass is excited with a laser. The finite element analysis modeling for photothermal signal with coupling heat with surrounding shows the thermal heat transfer between the glass surface and the coupling fluid. This work shows that the problem can be resolved by using pulsed laser excitation where the signal decay is faster than the heat diffusion to the surrounding, and finite element analysis modeling to correct the likely deviation from semi-infinite cylinder approximate models. Second, finite element analysis modeling of a photothermal lens signal also shows that there are slow and fast components of signals, which are detected by using a fast response detector and is explained to be due to the axial and radial transfer of heat. A semi-analytical theoretical description of the mode-mismatched continuous and pulsedlaser excitation thermal lens effect that accounts for heat coupling both within the sample and out to the surrounding is presented. The results are compared with the finite element analysis solution and found to be an excellent agreement. The analytical model is then used to quantify the effect of the heat transfer from the sample surface to the air coupling fluid on the thermal lens signal. The results showed that the air signal contribution to the total photothermal lens signal is significant in many cases. Third, surface deformation phenomena are quite common when glasses are excited by laser. Finite element analysis modeling of a surface deformation phenomenon is done. A thermal lens reflection experiment is carried out and results are compared with modeling. The effect of coupling fluid on sample is taken in to account to make more accurate measurement of thermophysical properties of solid sample. Fourth, a novel apparatus for performing photothermal lens spectroscopy is described which uses a low-volume cylindrical sample cell with a pulsed excitation laser. Finite element analysis modeling is used to examine the temperature profile and the photothermal signal. The result of finite element analysis is compared with the experimental result. The experimental photothermal lens enhancement has been found to be that predicted from theory within experimental error.
The influence of temperature on the phase behavior of ionic liquid aqueous two-phase systems
Creators: name: Li, Yuliang
name: Zhang, Nan
name: Xu, Shuai
name: Zhu, Qi
name: Hu, Jing
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: In this article, the equilibrium behavior of solutions of 1-ethyl-3-methylimidazolium dimethyl phosphate ([Emim]DMP) and ethyl acetate or acetone in aqueous two-phase system (ATPS) was discussed to understand the liquid–liquid equilibrium (LLE) behavior of these organic solvents. Thus, we determined phase diagrams and LLE data at 303.15, 308.15, 313.15, and 323.15 K for the investigated biphasic systems. Four empirical equations were used to study the tie lines. The results showed that for the [Emim]DMP + acetone + water biphasic systems within the investigated temperature range, temperature influences the phase behavior, but for the [Emim]DMP + ethyl acetate + water biphasic systems within the investigated temperature range, there are no notable changes on the phase behavior with rising temperature. The results may have important applications for the separation of antibiotics and for the recovery of ionic liquids (ILs).
title: The Effect of Explicit Timing on Math Performance Using Interspersal Assignments with Students with Mild/Moderate Disabilities
Creators: name: Hou, Fangjuan
Publisher: name: Utah State University
Year: 2010

description: Explicit timing and interspersal assignments have been validated as effective methods to facilitate students' math practice. However, no researchers have explored the combinative effect of these two methods. In Study 1, we extended the literature by comparing the effect of explicit timing with interspersal assignments, and interspersal assignments without timing. Generally, participants' rate of digits correct on easy and hard addition problems was higher during the explicit timing condition than during the untimed condition. However, the participants' rate of digits correct decreased after initial implementation of the explicit timing condition. Motivation plays a crucial role in maintaining performance levels and helping students make continuous progress. Preferred reinforcers and setting academic targets have been widely utilized as active motivational components to increase the likelihood of a successful strategy in school settings. In Study 2, we employed a brief MSWO reinforcer assessment to identify individual student's low- and high-preference reinforcers and examined the effects of explicit timing on interspersed assignments combined with high preference or low preference reinforcers, and setting academic targets. In general, explicit timing combined with preferred reinforcers and academic targets produced a more sustainable effect on participants' rate of digits correct than explicit timing alone. In addition, high-preference reinforcers were more effective than low-preference reinforcers for three of five participants. For two participants, an increasing trend was observed when low preference reinforcers were contingent on meeting academic targets. These results are discussed relative to using preference assessments with students with mild/moderate disabilities.
The B -> pi K Puzzle: 2009 Update
Creators: name: Baek, Seungwon
name: Chiang, Cheng-Wei
name: London, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The measurements of B -> pi K decays have been in disagreement with the predictions of the Standard Model (SM) for some time. In this paper, we perform an update of this puzzle using the latest (2008) data. We find that the situation has become far less clear. A fit to the B -> pi K data alone suggests the presence of new physics (NP). Indeed, if one adds a constraint on the weak phase gamma coming from independent measurements -- the SM fit -- one finds that the fit is poor. On the other hand, it is not terrible. If one is willing to accept some deficiencies in the fit, it can be argued that the SM can explain the B -> pi K data. If one assumes NP, it is found to be present only in the electroweak penguin amplitude, as before. However, the fit is fair at best, and the improvement over the SM is not particularly strong. All and all, while the B -> pi K puzzle has not disappeared, it has become weaker.
description: 12 pages, latex, no figures. Re-referenced certain papers; added a paragraph and table regarding ACP(pi0 K0). Conclusions unchanged
Radar-based Materials Classification Using Deep Wavelet Scattering Transform: A Comparison of Centimeter vs. Millimeter Wave Units
Creators: name: Khushaba, Rami N.
name: Hill, Andrew J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Radar-based materials detection received significant attention in recent years for its potential inclusion in consumer and industrial applications like object recognition for grasping and manufacturing quality assurance and control. Several radar publications were developed for material classification under controlled settings with specific materials' properties and shapes. Recent literature has challenged the earlier findings on radars-based materials classification claiming that earlier solutions are not easily scaled to industrial applications due to a variety of real-world issues. Published experiments on the impact of these factors on the robustness of the extracted radar-based traditional features have already demonstrated that the application of deep neural networks can mitigate, to some extent, the impact to produce a viable solution. However, previous studies lacked an investigation of the usefulness of lower frequency radar units, specifically <10GHz, against the higher range units around and above 60GHz. This research considers two radar units with different frequency ranges: Walabot-3D (6.3-8 GHz) cm-wave and IMAGEVK-74 (62-69 GHz) mm-wave imaging units by Vayyar Imaging. A comparison is presented on the applicability of each unit for material classification. This work extends upon previous efforts, by applying deep wavelet scattering transform for the identification of different materials based on the reflected signals. In the wavelet scattering feature extractor, data is propagated through a series of wavelet transforms, nonlinearities, and averaging to produce low-variance representations of the reflected radar signals. This work is unique in comparison of the radar units and algorithms in material classification and includes real-time demonstrations that show strong performance by both units, with increased robustness offered by the cm-wave radar unit.
description: 6 pages, 8 figures, accepted IEEE in Robotics and Automation Letters c. January 2022 associated video: https://www.youtube.com/watch?v=Mfohzvf7iuA
INTERNET TARMOGʻINING ISHLASH TAMOYILLARI
Creators: name: Qodirov, Farrux
name: Ochilova, Gulsanam
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada internet tarmog‘ining ishlash tamoyillari, uning tarkibiy qismlari va ma’lumotlar uzatish mexanizmlari haqida batafsil ma’lumot beriladi. Internet infratuzilmasining asosiy elementlari – serverlar, provayderlar, IP-manzillar va domen tizimi (DNS) tushuntiriladi. Shuningdek, TCP/IP protokollari va paketli uzatish texnologiyasi asosida ma’lumotlar almashinuvi jarayoni yoritiladi. Maqolada internet xavfsizligi masalalariga ham e’tibor qaratilib, shifrlash, autentifikatsiya, himoya devorlari (firewall) va kiberxavfsizlik tahdidlariga qarshi kurash usullari ko‘rib chiqiladi. Oxirida esa internet texnologiyalarining rivojlanishi va istiqbollari haqida fikr yuritiladi. Ushbu maqola internet texnologiyalari bilan tanishmoqchi bo‘lgan talabalar, IT mutaxassislari va qiziquvchilar uchun foydali qo‘llanma bo‘lib xizmat qiladi
Chemical surface modification of polyethylene for improved adhesion to epoxy coatings
Creators: name: Azimi, Mohammadyousef
Publisher: name: University of British Columbia
Year: 2025

description: The surface modification of high-density polyethylene (HDPE) is critical in improving its adhesion to coatings, particularly in pipeline coatings where HDPE is used as the outermost layer of three-layer polyethylene (3LPE) systems. Despite HDPE's widespread use due to its chemical stability, low energy consumption in processing, and cost-effectiveness, its non-polar, hydrophobic surface and low surface free energy (SFE) limit its adhesion properties. This presents a major challenge in field joint coating (FJC) applications, where strong adhesion between HDPE and liquid epoxy is required to protect welded pipeline joints. Existing methods for HDPE surface modification, such as flame treatment or corona discharge, are either inconsistent or impractical for field use, necessitating the development of a more reliable, field-friendly solution. This thesis proposes several novel chemical surface modification methods for HDPE to significantly enhance its surface functionality, SFE, hydrophilicity, and adhesion to liquid epoxy coatings. The research explores the use of transition metal (TM)-activated peroxides, oxidative pastes, and grafting techniques to modify the HDPE surface. The first approach utilizes TM peroxide systems to activate peroxides such as proxymonosulfate (PMS), persulfate (PS), and hydrogen peroxide (HP), generating reactive radicals capable of functionalizing the HDPE surface. A two-step grafting method for glycidyl methacrylate (GMA) and maleic anhydride (MAH) is also introduced. Furthermore, oxidative pastes were developed to offer a practical alternative for field applications, providing significant improvements in adhesion and hydrophilicity. Key findings demonstrate that TM-peroxide systems—particularly those involving RuCl₃-PMS, CoCl₂-PMS, KMnO₄-PMS and KMnO₄-PS—dramatically increase HDPE surface polarity and improve adhesion to epoxy by over 200%. The study also shows that these chemical treatments do not adversely affect the bulk properties of HDPE, maintaining its mechanical strength and crystallinity. Finally, the thesis critically evaluates SFE models and contact angle (CA) measurement techniques, showcasing the unreliability of widely-used as-placed CA results for some surfaces and proposing a new method for calculating SFE using advancing and receding CAs to better align with surface functionality and adhesion test results. This work presents a practical solution for improving HDPE surface properties for FJC applications, with potential applications in other industries such as lithium-ion batteries and packaging.
SPS: A software simulator for the Herschel-SPIRE photometer
Creators: name: Sibthorpe, B.
name: Chanial, P.
name: Griffin, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Instrument simulators are becoming ever more useful for planning and analysing large astronomy survey data. In this paper we present a simulator for the Herschel-SPIRE photometer. We describe the models it uses and the form of the input and output data. The SPIRE photometer simulator is a software package which uses theoretical models, along with flight model test data, to perform numerical simulations of the output time-lines from the instrument in operation on board the Herschel space observatory. A description of the types of uses of the simulator are given, along with information on its past uses. These include example simulations performed in preparation for a high redshift galaxy survey, and a debris disc survey. These are presented as a demonstration of the sort of outputs the simulator is capable of producing.
description: Accepted by Astronomy and Astrophysics
Spectroscopic Signatures of the Dynamical Hydrophobic Solvation Shell Formation
Creators: name: Kirchberg, Henning
name: Nalbach, Peter
name: Bressler, Christian
name: Thorwart, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: When a hydrophilic solute in water is suddenly turned into a hydrophobic species, for instance, by photoionization, a layer of hydrated water molecules forms around the solute on a time scale of a few picoseconds. We study the dynamic build-up of the hydration shell around a hydrophobic solute on the basis of a time-dependent dielectric continuum model. Information about the solvent is spectroscopically extracted from the relaxation dynamics of a test dipole inside a static Onsager sphere in the nonequilibrium solvent. The growth process is described phenomenologically within two approaches. First, we consider a time-dependent thickness of the hydration layer which grows from zero to a finite value over a finite time. Second, we assume a time-dependent complex permittivity within a finite layer region around the Onsager sphere. The layer is modeled as a continuous dielectric with a much slower fluctuation dynamics. We find a time-dependent frequency shift down to the blue of the resonant absorption of the dipole, together with a dynamically decreasing line width, as compared to bulk water. The blue shift reflects the work performed against the hydrogen bonded network of the bulk solvent and is a directly measurable quantity. Our results are in agreement with an experiment on the hydrophobic solvation of iodine in water.
title: Improved Framework for Fast and Efficient Memory-based Frame Data Reconfiguration for Multi-row Spanning Designs on Field Programmable Gate Arrays
Creators: name: Sreeram, Rohan
Publisher: name: Utah State University
Year: 2010

description: Reconfigurable computing is an evolving paradigm in computer architecture where the ability to load different designs onto a field programmable gate array (FPGA) at execution time has proven useful in adapting FPGA prototypes to a wide range of applications. Reconfiguration techniques can be primarily categorized as Partial Dynamic Reconfiguration (PDR) and Partial Bitstream Relocation (PBR). PDR involves reconfiguring a single Partial Reconfiguration Region (PRR) with a partial bitstream, while PBR is targeted at reconfiguring multiple PRRs on the FPGA with a partial bitstream. Previous techniques have primarily focused on using either slower off-chip memory or on-chip memory-based solutions to store the partial bitstream, and then reconfigure a PRR on the FPGA. Another technique called Accelerated Relocation Circuit (ARC) provides a more efficient method where a PRR (active bitstream) is used to relocate to other PRRs on the fly using minimal on-chip memory. This thesis proposes a novel technique for Memory-based Frame Data Reconfiguration (M-FDR) of multi-row PRRs. ARC hardware was re-architected to provide an improved frame data reconfiguration framework, called Accelerated Memory-based Reconfiguration Circuit (AMRC) for use in MBR scenarios. A performance prediction model is also proposed that confirms the speedup achieved by AMRC, in comparison to ARC and earlier methods. This technique was found to be 26.6% faster than ARC in PRR-PRR relocation. In comparison to other relocation techniques like Bit Relocation Filter (BiRF), AMRC provides a speedup of 231x. The AMRC method was also able to dynamically parallelize multi-row designs with an average context switching time of 0.37 ms.
title: ÐÐ±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÑÑÐ´Ð¾Ð²ÑÐ¼Ð¸ ÑÐµÑÑÑÑÐ°Ð¼Ð¸ Ð±ÑÐ´Ð¶ÐµÑÐ½Ð¾Ð¹ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¾ÑÐµÐµÐ², ÐÐ»ÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð±ÑÐ´Ð¶ÐµÑÐ½Ð°Ñ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ
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description: Ð ÑÐ¾Ð´Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° ÑÑÑÑÐºÑÑÑÐ° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÑÑÐ´Ð¾Ð²ÑÐ¼Ð¸ ÑÐµÑÑÑÑÐ°Ð¼Ð¸ Ð² Ð±ÑÐ´Ð¶ÐµÑÐ½Ð¾Ð¹ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ Ð²Ð¾Ð¹ÑÐºÐ¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐ¸. ÐÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÑÑÑÐºÑÑÑÐ° ÑÐ¸Ð»Ð¸Ð°Ð»Ð° Ð»Ð¸Ð½ÐµÐ¹Ð½Ð°Ñ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ ÑÐ¼ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÑÑÑ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸, Ð¿Ð¾Ð»ÑÑÐ°ÐµÐ¼Ð¾Ð¹ Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð½Ð¾Ð²Ð¾Ð³Ð¾ ÑÑÐ°ÑÐ° Ð¸ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð½Ð°Ð¿ÑÐ°Ð²Ð¸ÑÑ Ð²ÑÑÐ²Ð¾Ð±Ð¾Ð¶Ð´Ð°ÐµÐ¼ÑÐµ Ð´ÐµÐ½ÐµÐ¶Ð½ÑÐµ ÑÐµÑÑÑÑÑ Ð½Ð° ÑÐ»ÑÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð±Ð¾ÑÑ ÐÐ¸Ð½Ð¸ÑÑÐµÑÑÑÐ²Ð° ÐÐ±Ð¾ÑÐ¾Ð½Ñ.
title: Examination of Deformation in Crystalline Rock From Strike-Slip Faults in Two Locations, Southern California
Creators: name: Forand, David H.
Publisher: name: Utah State University
Year: 2010

description: Damage zones adjacent to or associated with faults are important to the geologic community because of their implications to hazards and their ability to preserve evidence for, and show history of, slip, fluid flow, and deformation associated with large strike-slip faults. We examine two fault zones in southern California where fault zone damage is expressed. We revisit the drilled crystalline core from the Cajon Pass California drill hole, 4 km northeast of the San Andreas fault (SAF), and 1 km north of the Cleghorn fault, to perform a systematic structural analysis of deformation and alteration associated with strike-slip faulting at the site. The core preserved 19 fault zones, 11 of which were not previously identified. The most significant fault is a fully intact steep-dipping fault zone at 3,402 m depth with potassium feldspar and epidote alteration. This fault correlates well with the nearby left-lateral Cleghorn fault. The extent of deformation varies within the core, and is controlled by the size of the fault zones intersected by the core. The extent of deformation varies and is controlled by the size of the faults the core intersected. We also examined the nature of right separation across the Clark fault damage zone along the Santa Rosa segment using a marker assemblage of biotite, hornblende-bearing tonalite - marble - bearing metasedimentary rocks - migmatite located in Coyote Mountain and the southeast Santa Rosa Mountains. Separation measured from this study is 16.8 km + 3.67 km / -6.03 km. Our measurement uses the updated location of the Clark fault in Clark Lake Valley and matches a distinctive lithologic contact across the fault instead of matching the diffuse western boundary of the Eastern Peninsular mylonite zone as previously used. We calculate the errors associated with projecting the contacts across Quaternary cover to the trace of the Clark fault, and consider a range of projections. Additional strain may have been accommodated in folds and small faults within the damage zone of the San Jacinto fault zone. Two large map-scale folds deform the marker assemblage near the San Jacinto fault zone and we tested whether Cretaceous ductile deformation or brittle late Quaternary right slip produced the folds.
title: Minimum Symbol Error Rate Timing Recovery System
Creators: name: Bage Jayaraj, Nagendra
Publisher: name: Utah State University
Year: 2010

description: This thesis presents a timing error detector (TED) used in the symbol timing synchronization subsystem for digital communications. The new timing error detector is designed to minimize the probability of symbol decision error, and it is called minimum symbol error rate TED (MSERTED). The new TED resembles the TED derived using the maximum likelihood (ML) criterion but gives rise to faster convergence relative to MLTED. The new TED requires shorter training sequences for symbol timing recovery. The TED operates on the outputs of the matched filter and estimates the timing offset. The S-curve is used as a tool for analyzing the behavior of the TEDs. The faster convergence of the new TED is shown in simulation results as compared to MLTED. The new TED works well for any two-dimensional constellation with arbitrarily shaped decision regions.
MiMeS: Misalignment Mechanism Solver
Creators: name: Karamitros, Dimitrios
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a C++ header-only library that is used to solve the axion equation of motion, MiMeS. MiMeS makes no assumptions regarding the cosmology and the mass of the axion, which allows the user to consider various cosmological scenarios and axion-like models. MiMeS also includes a convenient python interface that allows the library to be called without writing any code in C++, with minimal overhead.
description: 44 pages, 8 figures. The stable version of the library can be found at https://github.com/dkaramit/MiMeS/tree/stable. v2: 45 pages. Added references. Minor corrections to the examples. v3: Minor typos corrected, discussion on initial condition extended. Matches published version
Amplifying spin waves along Néel domain wall by spin-orbit torque
Creators: name: Xing, Xiangjun
name: Wang, T.
name: Zhou, Yan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Traveling spin waves in magnonic waveguides undergo severe attenuation, which tends to result in a finite propagation length of spin waves, even in magnetic materials with the accessible lowest damping constant, heavily restricting the development of magnonic devices. Compared with the spin waves in traditional waveguides, propagating spin waves along strip domain wall are expected to exhibit enhanced transmission. Here, we demonstrate, theoretically and through micromagnetic simulations, that spin-orbit torque associated with a ferromagnet/heavy metal bilayer can efficiently control the attenuation of spin waves along a Néel-type strip domain wall, despite the complexity in the ground-state magnetization configuration. The direction of the electric current applied to the heavy-metal layer determines whether these spin waves are amplified or further attenuated otherwise. Remarkably, our simulations reveal that the effective current densities required to efficiently tune the decay of such spin waves are just ~10^10 Am-2, roughly an order smaller than those required in conventional spin waveguides. Our results will enrich the toolset for magnonic technologies.
description: 27 pages, 5 figures, 4 supplemental figures
The SPECFIND V2.0 catalogue of radio cross-identifications and spectra. SPECFIND meets the Virtual Observatory
Creators: name: Vollmer, B.
name: Gassmann, B.
name: Derriere, S.
name: Boch, T.
name: Louys, M.
name: Bonnarel, F.
name: Dubois, P.
name: Genova, F.
name: Ochsenbein, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The new release of the SPECFIND radio cross-identification catalogue, SPECFIND V2.0, is presented. It contains 107488 cross-identified objects with at least three radio sources observed at three independent frequencies. Compared to the previous release the number of entry radio catalogues is increased from 20 to 97 containing 115 tables. This large increase was only made possible by the development of four tools at CDS which use the standards and infrastructure of the Virtual Observatory (VO). This was done in the framework of the VO-TECH European Design Study of the Sixth Framework Program. We give an overview of the different classes of radio sources that a user can encounter. Due to the increase of frequency coverage of the input radio catalogues, this release demonstrates that the SPECFIND algorithm is able to detect spectral breaks around a frequency of ~1 GHz.
description: 11 pages, 10 figures, accepted for publication in A&A
title: ÐÑÐµÑÐ°ÑÐ¸Ð²Ð½ÑÐ¹ Ð¿ÑÐ¸ÐµÐ¼ ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ SEFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð²
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: ÐÐ°Ð¹ÐºÐ¾Ð², ÐÑÑÐµÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: ÐÐ¾Ð´Ñ ÐºÐ¾ÑÑÐµÐºÑÐ¸ÑÑÑÑÐ¸Ðµ
ÐÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾Ð¼ÐµÑ Ð¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾Ðµ
Ð Ð°Ð´Ð¸Ð¾ÑÐ¸Ð³Ð½Ð°Ð»Ñ
ÐÐµÐ¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ

description: Ð ÑÑÐµÐ´Ðµ MatLab ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´Ð»Ñ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ ÐºÑÐ¸Ð²ÑÑ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ÐµÐ¼Ð° ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÐ²ÐµÑÑÐ¾ÑÐ½ÑÐ¼ ÐºÐ¾Ð´Ð¾Ð¼ 7 171 133 SEFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð². Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÐµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¿Ð¾Ð´Ð´ÐµÑÐ¶Ð¸Ð²Ð°ÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ ÐºÐ¾Ð´Ð° Ð·Ð° ÑÑÐµÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÐµÑÑÐ¾ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ 2 ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ ÑÑÐµÐ¼Ñ Ð¿ÑÐ¸ÐµÐ¼Ð° Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿ÐµÑÑÐ¾ÑÐ°ÑÐ¾ÑÐ°. ÐÐ¼Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÐµÐ¼ÐµÐ¹ÑÑÐ²Ð° ÐºÑÐ¸Ð²ÑÑ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ÐµÐ¼Ð° Ð´Ð»Ñ ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ SEFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð°, Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼Ð¸ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ° ÑÐ¿Ð»Ð¾ÑÐ½ÐµÐ½Ð¸Ñ Ð¸ ÑÐºÐ¾ÑÐ¾ÑÑÐµÐ¹ ÐºÐ¾Ð´Ð°. Ð¢Ð°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ¾Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ Ð´Ð²ÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÑÐµÐ¼ Ñ Ð¿ÐµÑÑÐ¾ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ. ÐÐ°Ð¹Ð´ÐµÐ½Ñ ÑÐ¸ÑÐ»ÐµÐ½Ð½ÑÐµ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾Ð¸Ð³ÑÑÑÐµÐ¹ Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÑÑ Ð¾ÑÐ¸Ð±ÐºÐ¸ Ð¿ÑÐ¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ SEFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ñ OFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð°Ð¼Ð¸ Ð¿ÑÐ¸ ÑÐ°Ð²Ð½Ð¾Ð¹ Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÑÐ¸Ð¼Ð²Ð¾Ð»Ð°. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð¾ÑÐµÐ½ÐºÐ° ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð° Ð¸ÑÐµÑÐ°ÑÐ¸Ð¹ Ð´Ð»Ñ SEFDM-Ð´ÐµÐ¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ°.
Sicherheitstechnische Kenngrößen von Alkohol/Luft-Gemischen - Explosionsdruck, zeitlicher Druckanstieg, Verbrennungsgeschwindigkeit
Creators: name: Mitu, Maria
name: Brandes, Elisabeth
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2013
Subjects: Explosionsdruck
Alkohol/Luft-Gemisch
Druckanstiegsgeschwindigkeit
Verbrennungsgeschwindigkeit
Temperatureinfluss
Druckeinfluss

description: Für Methanol, Ethanol, 2-Propanol, 2-Butanol und 1-Pentanol wurden für die sicherheitstech-nischen Kenngrößen Explosionsdruck und zeitlicher Druckanstieg die Druckabhängigkeit für Drücke kleiner 1 bar und die Temperaturabhängigkeit für Temperaturen bis 100 °C untersucht. Die aus der Literatur bekannten Druck- und Temperaturabhängigkeiten des Explosionsdruckes konnten bestätigt werden. Für den zeitlichen Druckanstieg ergab sich eine vergleichbare Druckabhängigkeit. Für den KG-Wert kann ein Einfluss des Volumens des Explosionsgefäßes, das für die Bestimmung des zeitlichen Druckanstieges verwendet wurde, nicht ausgeschlossen werden.
A candidate short-period sub-Earth orbiting Proxima Centauri
Creators: name: Faria, J. P.
name: Mascareño, A. Suárez
name: Figueira, P.
name: Silva, A. M.
name: Damasso, M.
name: Demangeon, O.
name: Pepe, F.
name: Santos, N. C.
name: Rebolo, R.
name: Cristiani, S.
name: Adibekyan, V.
name: Alibert, Y.
name: Allart, R.
name: Barros, S. C. C.
name: Cabral, A.
name: D'Odorico, V.
name: Di Marcantonio, P.
name: Dumusque, X.
name: Ehrenreich, D.
name: Hernández, J. I. González
name: Hara, N.
name: Lillo-Box, J.
name: Curto, G. Lo
name: Lovis, C.
name: Martins, C. J. A. P.
name: Mégevand, D.
name: Mehner, A.
name: Micela, G.
name: Molaro, P.
name: Nunes, N. J.
name: Pallé, E.
name: Poretti, E.
name: Sousa, S. G.
name: Sozzetti, A.
name: Tabernero, H.
name: Udry, S.
name: Osorio, M. R. Zapatero
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Proxima Centauri is the closest star to the Sun. This small, low-mass, mid M dwarf is known to host an Earth-mass exoplanet with an orbital period of 11.2 days within the habitable zone, as well as a long-period planet candidate with an orbital period of close to 5 years. We report on the analysis of a large set of observations taken with the ESPRESSO spectrograph at the VLT aimed at a thorough evaluation of the presence of a third low-mass planetary companion, which started emerging during a previous campaign. Radial velocities (RVs) were calculated using both a cross-correlation function (CCF) and a template matching approach. The RV analysis includes a component to model Proxima's activity using a Gaussian process (GP). We use the CCF's full width at half maximum to help constrain the GP, and we study other simultaneous observables as activity indicators in order to assess the nature of any potential RV signals. We detect a signal at 5.12 $\pm$ 0.04 days with a semi-amplitude of 39 $\pm$ 7 cm/s. The analysis of subsets of the ESPRESSO data, the activity indicators, and chromatic RVs suggest that this signal is not caused by stellar variability but instead by a planetary companion with a minimum mass of 0.26 $\pm$ 0.05 $M_\oplus$ (about twice the mass of Mars) orbiting at 0.029 au from the star. The orbital eccentricity is well constrained and compatible with a circular orbit.
description: 17 pages, 13 figures
OZIQ-OVQAT MUAMMOSINI HAL QILISHDA QISHLOQ XO'JALIGINING O'RNI
Creators: name: Xidiraliyev, K.E
name: Axunboboyev, M.M
name: Yo'lchiyeva, Nasiba
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada oziq-ovqat muammosini hal qilishda qishloq xo‘jaligining o‘rni tahlil qilingan. Shuningdek, qishloq xo‘jaligida bugungi kunda amalga oshirilayotgan islohotlarga e’tibor qaratilgan. O‘zbekiston respublikasi qishloq xo‘jaligini rivojlantirishning 2020-2030 yillarga mo‘ljallangan strategiyasi mazmunidan kelib chiqgan holda, tahliliy ma’lumotlar o‘rganilgan. Qishloq xo‘jaligida erishilayotgan yutuqlar tahlili asosida, soha oldida turgan muammolar ko‘rsatib berilgan.
title: Effects of Temperature and Humidity on Glass-Reinforced Nylon Rotating Bands
Creators: name: Raby, Marc D.
Publisher: name: Utah State University
Year: 2010

description: Certain 30mm munitions used in various military applications are configured with a glass-reinforced nylon band that acts as a firing ring or rotating band. The purpose of this research is to investigate whether storage environments compromise the strength and integrity of the glass-reinforced nylon rotating bands by researching the environmental factors that will degrade nylon and by performing tests to investigate if these factors will embrittle nylon composites. Moisture and temperature are found to be the environmental factors that will have an effect on the rotating bands in their respective storage environments. Absorbed moisture is found to increase the impact strength of nylon while at the same time expanding surface defects and attacking fiber/matrix bonds. Two impact tests using a Tinius Olsen impact tester are used to determine the effects of different storage environments on the impact strength of neat resin nylon 6/12 and 33% glass-reinforced nylon 6/12. The relative Shore D hardness of each reinforced sample is also measured to determine if any correlation between impact strength and hardness exists. Absorbed moisture is found to increase the toughness of both neat resin and reinforced nylon samples, but once dried again no significant difference in impact strength is found. A third test using a horizontal milling machine and a specially shaped tool is run to try and recreate the deformation that the rotating band sees when impacting the rifling of the gun. This test proved to be unsuccessful in generating brittle failure in glass-reinforced test samples.
A Far-UV Variability Survey of the Globular Cluster M80
Creators: name: Thomson, Grace S
name: Dieball, Andrea
name: Knigge, Christian
name: Long, Knox S
name: Zurek, David R
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have searched for variable sources in the core region of M80, using far ultra-violet data taken with the Advanced Camera for Surveys on board the Hubble Space Telescope. We found three sources that exhibit strong signs of variability in our data. Among these is source TDK1, which we believe to be an RR Lyrae star that reached maximum brightness during our observations. The light curve shows a >3 mag FUV brightening over the course of ~5 hours, with an estimated peak brightness of ~16.7 mag, followed by a decrease to ~20 mag. Archival optical data obtained with WFPC2 confirm that TDK1 is variable in all wavebands. TDK1's SED is reasonably fit by a star with temperature T(eff)=6700K and radius R=4.2R(sun), consistent with the suggestion that it is an RR Lyrae. Based on the photometric and variability characteristics of the other two variables, we suggest that TDK2 is likely to be an SX Phoenicis star with ~55 minutes period, and TDK3 is likely another RR Lyrae. Finally, we briefly discuss the FUV counterparts to two previously known variables in M80, the classical nova T Sco and the dwarf nova DN1.
description: 12 pages, 9 figures and 3 tables. Accepted for publication in MNRAS.
title: Effects of Underwater Treadmill Exercise on Mobility of People with Knee Osteoarthritis
Creators: name: Roper, Jaimie
Publisher: name: Utah State University
Year: 2010

description: Gait, pain, and self-efficacy alterations in osteoarthritis (OA) patients may be precursors for pathological alterations and are important variables to examine in an aquatic therapy study aimed at improving mobility. A greater understanding of these alterations will be useful for the treatment of OA and the prevention of OA progression. The purpose of this thesis was twofold: to review the effects of certain land and aquatic therapies on gait kinematics and mobility of people with osteoarthritis, and to examine the effects of short-term aquatic treadmill exercise on gait kinematics, perception of pain, and mobility in OA patients. A direct comparison of water versus land treadmill exercise was used to determine the acute effectiveness of aquatic therapy on gait kinematics, pain, and self-efficacy. Fourteen participants diagnosed with osteoarthritis of the knee performed three consecutive exercise sessions for each mode of exercise. Gait kinematics, pain, and self-efficacy were measured before and after each intervention. Angular velocity gain score during stance for left knee extension was significantly higher for aquatic treadmill exercise compared to land treadmill exercise by 38.1% (p = 0.004). Similarly, during swing, the gain scores for angular velocity were also greater for left knee internal rotation and extension by 65% and 20%, respectively (p = 0.004, p = 0.008). During stance, the joint angle gain score for left hip flexion was greater for land exercise by 7.23% (p = 0.007). Similarly, during swing, the angular velocity gain score for right hip extension was significantly greater for aquatic exercise by 28% (p = 0.01). Only the joint angle gain score for left ankle abduction during stance was significantly higher for land exercise by 4.72% (p = 0.003). No other joint angle gain scores for either stance or swing were significantly different for either aquatic or land treadmill exercise (p = 0.06-0.96). Perceived pain was 100% greater for land than aquatic treadmill exercise (p = 0.02) and self-efficacy gain scores were not different between conditions (p = 0.37). The present study demonstrated that an acute training period on an aquatic treadmill did influence joint angular velocity and arthritis-related joint pain. Although acute effects of training (i.e., pain, angular velocity) improve after aquatic rather than land training, it is unclear whether or not aquatic exercise is a better long-term alternative to land exercise, and further longitudinal research is needed to examine gait kinematic changes after an increased training period of aquatic exercise.