cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SU(2) and SU(3) chiral perturbation theory analyses on baryon masses in 2+1 flavor lattice QCD
Creators: name: Ishikawa, K. -I.
name: Ishizuka, N.
name: Izubuchi, T.
name: Kadoh, D.
name: Kanaya, K.
name: Kuramashi, Y.
name: Namekawa, Y.
name: Okawa, M.
name: Taniguchi, Y.
name: Ukawa, A.
name: Ukita, N.
name: Yoshie, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the quark mass dependence of baryon masses in 2+1 flavor lattice QCD using SU(3) heavy baryon chiral perturbation theory up to one-loop order. The baryon mass data used for the analyses are obtained for the degenerate up-down quark mass of 3 MeV to 24 MeV and two choices of the strange quark mass around the physical value. We find that the SU(3) chiral expansion fails to describe both the octet and the decuplet baryon data if phenomenological values are employed for the meson-baryon couplings. The SU(2) case is also examined for the nucleon. We observe that higher order terms are controlled only around the physical point. We also evaluate finite size effects using SU(3) heavy baryon chiralperturbation theory, finding small values of order 1% even at the physical point.
description: 26 pages, 10 tables, 58 figures
title: A Baseline Study of Biofuel Feedstock Growth on Non-Traditional Agronomic Land in Utah
Creators: name: Hanks, Dallas A.
Publisher: name: Utah State University
Year: 2012

description: The goal of the Non-Traditional Agronomic Land (NTAL) Project is to develop sustainable, agronomic, crop growth methods that will allow biofuel feedstock production to occur on marginal or non-traditional plots of land, e.g., roadways, railroads, airports, and military installations. Recent economic feasibility models by Utah State University (USU) indicate these lands could, in theory, produce one billion gallons of economically viable new feedstock annually. Specifically, USU models show that if 60 % (600 pounds/acre) of dry land oilseed can be produced, maintenance costs of these NTALs can be recovered, as well as production of approximately 25 gallons/acre of renewable biodiesel. This feedstock yield would increase U.S. biodiesel production between 100- 200 %, and save federal and state agencies substantial financial resources.
Preliminary impact considerations that have been taken into account for production on non-traditional land include: safety, structural integrity, economics, wildlife impacts, ecology/environmental impacts, water quality and grower concerns, soil quality, water use, generation/reduction of hazardous/toxic substances, air emissions, wastewater discharges, and reductions in use of pesticides and fertilizer.
Canola and Safflower plots were established in 2007 and 2008 along roadsides in four different regions of the Utah I-15 corridor. Harsh climatic conditions with above average temperatures and below average precipitation existed in both years. Less than 50 % average yields for safflower and 25 % average yields for canola under normal climatic conditions were produced. Roadside plots all yielded under 200 pounds/acre of seed for both crops. In 2008, seeds were placed 2 inches deep during planting to position them closer to moisture, and no measureable yield was observed for any crops in control plots planted on traditional farmland and less than 10 pounds/acre in roadside plots.
We found that it was not economical to grow oilseed crops for biodiesel production along Utah roadsides under the climatic conditions experienced during 2007- 2008 while using a Tye Pasture Pleaser No-Till Drill. (98 Pages)
Detmers, Achim (Hg.): Georg III. von Anhalt (1507-1553)
Creators: name: Wenz, Armin
Publisher: name: Lutherische Beiträge
Year: 1970

description: Lutherische Beiträge, Bd. 13 Nr. 4 (2008): Lutherische Beiträge, Band 13, Heft 4
title: Effect of Root-Rot Upon Sugar-Beet Seed Production
Creators: name: Nuffer, Louis F.
Publisher: name: Utah State University
Year: 1923

description: Due to considerable  loss through root-rot of mother beets while in storage during the winter of 1918-1919 the Amalgamated Sugar Company asked advice in regard to planting beets which had decay lesions on them.  Would the beets yield seed if planted?  How much seed would these beets yield as compared with healthy beets? Would the seed produced be injured by having been grown on decayed beets?  It was felt that an experiment carried out with the above questions in view would bring out many facts upon which to base conclusions in answering the questions of the Sugar Company.
Computing formation enthalpies through an explainable machine learning method: the case of Lanthanide Orthophosphates solid solutions
Creators: name: Di Napoli, Edoardo
name: Wu, Xinzhe
name: Bornhake, Thomas
name: Kowalski, Piotr M.
Publisher: name: Forschungzentrum Jülich
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 68T05, 62J07

description: arXiv (2023). doi:10.48550/ARXIV.2303.03748
description: In the last decade, the use of Machine and Deep Learning (MDL) methods in Condensed Matter physics has seen a steep increase in the number of problems tackled and methods employed. A number of distinct MDL approaches have been employed in many different topics; from prediction of materials properties to computation of Density Functional Theory potentials and inter-atomic force fields. In many cases the result is a surrogate model which returns promising predictions but is opaque on the inner mechanisms of its success. On the other hand, the typical practitioner looks for answers that are explainable and provide a clear insight on the mechanisms governing a physical phenomena. In this work, we describe a proposal to use a sophisticated combination of traditional Machine Learning methods to obtain an explainable model that outputs an explicit functional formulation for the material property of interest. We demonstrate the effectiveness of our methodology in deriving a new highly accurate expression for the enthalpy of formation of solid solutions of lanthanides orthophosphates.
description: Published by arXiv
Life on moduli space?
Creators: name: Hsu, Stephen D. H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: While the number of metastable landscape vacua in string theory is vast, the number of supermoduli vacua which lead to distinct low energy physics is even larger, perhaps infinitely so. From the anthropic perspective it is therefore important to understand whether complex life is possible on moduli space -- i.e., in low energy effective theories with 1. exact supersymmetry and 2. some massless multiplets (moduli). Unless life is essentially impossible on moduli space as a consequence of these characteristics, anthropic reasoning in string theory suggests that the overwhelming majority of sentient beings would observe 1-2. We investigate whether 1 and 2 are by themselves automatically inimical to life and conclude, tentatively, that they are not. In particular, we describe moduli scenarios in which complex life seems possible.
description: Revised version to appear in PRD. Expanded section on supersymmetric bulk matter. 4 pages, revtex
La scienza e l’ignoto al Festival di Roma
Creators: Davide Coero Borga
Publisher: name: Media Inaf
Year: 2015

Nel suo essere un sapere intrinsecamente provvisorio la scienza ci accompagna fra ciò che ancora non conosciamo coltivando dubbio e incertezza: l’ignoto è protagonista al Festival delle Scienze di Roma. INAF cura tutto il programma scuole e porta in scena uno spettacolo che unisce tatro, musica e divulgazione scientifica
title: A Study of the Sage Grouse (Centrocercus urophasianus), With Special Reference to Life History, Habitat Requirements, and Numbers and Distribution
Creators: name: Griner, Lynn A.
Publisher: name: Utah State University
Year: 1939

description: The sage grouse or sage hen Centrocercus urophasianus (Bonaparte) was formerly the most important upland native game bird of the Western States, but has steadily been declining in numbers over most of its range in recent years. This reduction in numbers has aroused the interest of the conservationists of the nation, who, for the past decade or more, have been proposing that something be done for this game species. In recent years along with this interest of the conservationists, there has been an increasing local interest among the sportsmen of the West, with the result that several groups have become interested in making a study of the sage grouse and determining reasons for the marked decline in its numbers. Partly because of this aroused interest, the study of the sage grouse was selected as a research project.
Photogalvanic effect and photoconductance in a quantum channel with a single short-range scatterer
Creators: name: Pyataev, M. A.
name: Ulyanov, S. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The influence of electromagnetic radiation on the electron transport in a quantum channel with a single short-range scatterer is investigated using a generalized Landauer-Buttiker approach. We have shown that asymmetrical position of the scatterer leads to appearance of the direct photocurrent in the system. The dependence of the photocurrent on the electron chemical potential, the position of the scatterer, and the frequency of the radiation is studied. We have shown that the photocurrent and the photoconductance oscillate as functions of the electron chemical potential. The nature of oscillations is discussed.
description: Appendix is added, submitted to Phys. Rev. B
Efficient production of polar molecular Bose-Einstein condensates via an all-optical R-type atom-molecule adiabatic passage
Creators: name: Qian, Jing
name: Zhou, Lu
name: Zhang, Keye
name: Zhang, Weiping
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We propose a scheme of "$R$-type" photoassociative adiabatic passage (PAP) to create polar molecular condensates from two different species of ultracold atoms. Due to the presence of a quasi-coherent population trapping state in the scheme, it is possible to associate atoms into molecules with a \textit{low-power} photoassociation (PA) laser. One remarkable advantage of our scheme is that a tunable atom-molecule coupling strength can be achieved by using a time-dependent PA field, which exhibits larger flexibility than using a tunable magnetic field. In addition, our results show that the PA intensity required in the "$R$-type" PAP could be greatly reduced compared to that in a conventional "$Λ$-type" one.
description: 17 pages, 5 figures, to appear in New Journal of Physics
Italian land cadastral cartographic representation of public waters for a contribution to territorial governance: learning from history
Creators: name: Guzzo, Francesco
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: The process of formation and conservation of cadastral cartography for cadastral land system has always been an unavoidable defense of knowledge of the territories, albeit oriented to the imposition control. Also the hydrographic network, as well as, the road network and toponymy of streets and paths, have constituted in the cadastral representation frame elements for the geometrical-particle metric, articulating, with connotations also of civilistic nature , the juridical-ownership structures of the waters, both in terms of “domination” and of possible uses for a wide area technical reproduction support by cadastral representation. Finally, cadastral representation of public waters and road network allows diachronic analysis for prevention & control and risk assessment (danger scenarios).
This cross sectional survey article is directly cured by author as CePSU provincial wide areas coordinator by so called “Crossing Borders Narrative”.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, Vol 3 No 2: Urban Water Management
Transport by molecular motors in the presence of static defects
Creators: name: Chai, Yan
name: Lipowsky, Reinhard
name: Klumpp, Stefan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The transport by molecular motors along cytoskeletal filaments is studied theoretically in the presence of static defects. The movements of single motors are described as biased random walks along the filament as well as binding to and unbinding from the filament. Three basic types of defects are distinguished, which differ from normal filament sites only in one of the motors' transition probabilities. Both stepping defects with a reduced probability for forward steps and unbinding defects with an increased probability for motor unbinding strongly reduce the velocities and the run lengths of the motors with increasing defect density. For transport by single motors, binding defects with a reduced probability for motor binding have a relatively small effect on the transport properties. For cargo transport by motors teams, binding defects also change the effective unbinding rate of the cargo particles and are expected to have a stronger effect.
description: 20 pages, latex, 7 figures, 1 table
The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the habitable zone of M dwarfs
Creators: name: Zechmeister, M.
name: Kürster, M.
name: Endl, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present radial velocity (RV) measurements of our sample of 40 M dwarfs from our planet search programme with VLT+UVES begun in 2000. Although with our RV precision down to 2 - 2.5 m/s and timebase line of up to 7 years, we are capable of finding planets of a few Earth masses in the close-in habitable zones of M dwarfs, there is no detection of a planetary companion. To demonstrate this we present mass detection limits allowing us to exclude Jupiter-mass planets up to 1 AU for most of our sample stars. We identified 6 M dwarfs that host a brown dwarf or low-mass stellar companion. With the exception of these, all other sample stars show low RV variability with an rms < 20 m/s. Some high proper motion stars exhibit a linear RV trend consistent with their secular acceleration. Furthermore, we examine our data sets for a possible correlation between RVs and stellar activity as seen in variations of the Halpha line strength. For Barnard's star we found a significant anticorrelation, but most of the sample stars do not show such a correlation.
description: 13 pages, 12 figures, 5 tables, accepted by A&A
title: A Study of the Structure of Shear Turbulence in Free Surface Flows
Creators: name: Rao, Maddineni Venkateswara
Publisher: name: Utah State University
Year: 1965

description: Turbulence is a familiar phenomenon which gives rise to complicated problems in many branches of engineering. Hinze has set forth the following definition for turbulence: "Turbulent fluid motion is an irregular condition of flow in which the various quantities show a random variation in time pnd space coordinates, so that statistically distinct average values can be discerned." Osborne Reynolds (1894) was the first to introduce the notion of statistical mean values into the study of turbulence. He visualized turbulent flow as the sum of mean and eddying motion. By introducing this sum of mean velocity and fluctuating velocity into the Navier-Stokes equations and with the aid of the continuity equation, he derived equations giving relationships between the various components of the fluctuating velocity. It was soon realized that before any further results could be obtained from a theoretical analysis of Reynold;s equations of motion, a mechanism had to be postulated for the ihteraction of fluctuating v~locity components at different points in the turbulent field. Consequently, three decades after Reynold's: work, phenomenological theories of turbulence, such as the momentum-transfer theory of Prandtl (1926), the vorticity transport theory of Taylor (1932) and the similarity theory of Karman (1930) were introduced. Not only are they based on unrealistic physical models, but they do not furnish any information beyond temporal-mean velocity distribution. A complete theory of turbulence should describe the mechanism of production of turbulence, its convection, diffusion, distribution, and eventual dissipation for any given boundary conditions.
title: ÐÐ½ÐµÐ´ÑÐµÐ½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ° Ð² Ð»Ð¾Ð³Ð¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÐµÑÐ°Ð¼Ð°Ð½Ð»Ñ, ÐÐ»ÐµÐºÑÐ°Ð½Ð´ÑÐ°
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: 2018
Subjects: Ð»Ð¾Ð³Ð¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸
ÐºÐ¾Ð½ÑÐµÐ¹Ð½ÐµÑÐ½ÑÐµ ÑÐµÑÐ¼Ð¸Ð½Ð°Ð»Ñ
Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾Ñ
ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÐ¹ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾Ñ

description: Ð¦ÐµÐ»ÑÑ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ° Ð½Ð° ÐºÐ¾Ð½ÑÐµÐ¹Ð½ÐµÑÐ½Ð¾Ð¼ ÑÐµÑÐ¼Ð¸Ð½Ð°Ð»Ðµ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÑÐµÑÑÐ²ÑÑÑÐµÐ³Ð¾ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ° Ð½Ð° ÐºÐ¾Ð½ÑÐµÐ¹Ð½ÐµÑÐ½Ð¾Ð¼ ÑÐµÑÐ¼Ð¸Ð½Ð°Ð»Ðµ, Ð±ÑÐ»Ð¾ Ð¿ÑÐ¸Ð½ÑÑÐ¾ ÑÐµÑÐµÐ½Ð¸Ðµ Ð¿ÐµÑÐµÑÐ¾Ð´Ð° Ð½Ð° ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÐ¹ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾Ñ, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð±ÑÐ´ÐµÑ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°ÑÑ ÐÐÐ Â«Ð Ð¾Ð»Ð¸ÑÂ». Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿ÑÐ¾ÐµÐºÑ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ°, Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÐµÑÐ½Ð¸ÐºÐ¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ. ÐÑÐ»Ð° Ð¾ÑÐµÐ½ÐµÐ½Ð° ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ°, Ð° ÑÐ°ÐºÐ¶Ðµ ÐµÐ³Ð¾ ÑÑÐ¾Ðº Ð¾ÐºÑÐ¿Ð°ÐµÐ¼Ð¾ÑÑÐ¸.
Hydraulic risk in urban area.  Community and memories in historical centre of Acireale
Creators: name: Pavone, Venera
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: The mainstream approach to environmental risk analysis uses probabilistic tools and mathematical models to evaluate the possibility that a given event will occur and its magnitude. This approach does not take into account the complexity of the socio-economic system omitting the uncertainties that result from the deep relationship between human, society and the environment. Risk assessment requires other contributions able to express and use the complexity not as a limit but as an opportunity. These contributions should be able to integrate traditional and qualitative approaches. Informal dialogues and life stories are useful to know community perceptions and territorial subjectivity in order to create a more complex image of the territory and to increase the awareness of the risk. This paper aims to illustrate the ongoing experience in Acireale, where a participatory process on the assessment and prevention of flood risks in urban areas has been started. The first part of the process was intended to rebuild the collective image of risk. Afterwards a collective experience of service learning has tried to transform these analysis into project. Questions are still many: could this process be a codified form? What are difficulties and opportunities of such a process? How does this influence the redesign of the city and community behaviors?
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, Vol 3 No 2: Urban Water Management
Sotto lo stesso cielo
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2015

Durante la giornata verranno ricordati, soprattutto attraverso inediti documenti d’archivio, gli astronomi italiani che nel 1938, anno di promulgazione delle leggi razziali, furono costretti ad abbandonare il loro posto di lavoro presso gli osservatori astronomici e a fuggire all’estero, o a vivere in clandestinità fino al termine della seconda guerra mondiale nel 1945
Effect of chlorpromazine (largactil) on Porteus maze performance
Creators: name: Quinn, Michael James
Publisher: name: University of British Columbia
Year: 2012

description: This study was designed to assess the effect of chlorpromazine, a "tranquilizing" drug on Porteus Maze Performance, and to find whether such effect was permanent or transitory. The drug's effect on clinical behavior was also evaluated. Subjects were 44 adult, male, chronic psychotics from the Mental Hospital, British Columbia. Each pair was matched exactly on initial Maze scores and as closely as possible for age, hospital duration, education, occupation, and marital status. All subjects: had been diagnosed as schizophrenic; had not had chlorpromazine previously; had not been operated on psychosurgically; had been hospitalized for at least three years; showed no evidence of organic brain disease. Experimental subjects were selected by random method. The L-M Fergus Falls Behavior Rating Scale was used to evaluate clinical behavior. The experimental group received 300 mg. daily of chlorpromazine for 30 days, and the control group received 300 mg. daily of placebos for the same period. Maze scores and Behavior ratings were obtained for each subject before medication, during medication, and after medication. The results were treated statistically to find if there were any significant differences between the two groups. The conclusions were that chlorpromazine had no significant effect on either Maze performance or clinical behavior. The results were in the expected direction but the Maze decrement and the clinical Improvement attributable to chlorpromazine were too slight to have statistical significance. It was tentatively-concluded: 1. that Maze decrements resulting from chlorpromazine are transitory; 2. that a decline in clinical behavior shown by the control group was due to placebo effect; 3. that the maximum effects of chlorpromazine were not achieved due to the composition of the group, the moderate dose, and the short duration of treatment.
Spinor fields without Lorentz frames in curved spacetime using complexified quaternions
Creators: name: Fredsted, John
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 11R52; 15A66; 70G45; 17A75

description: Using complexified quaternions, a formalism without Lorentz frames, and therefore also without vierbeins, for dealing with tensor and spinor fields in curved spacetime is presented. A local U(1) gauge symmetry, which, it is speculated, might be related to electromagnetism, emerges naturally.
description: 14 pages; v2: minor corrections; v3: note added concerning unified treatment of local Lorentz transformations and local U(1) gauge transformations; v4: published in J. Math. Phys. 50 083507 (2009)
title: A History and Economic Analysis of the Hyrum Reclamation Project
Creators: name: Brinley, Douglas Eldon
Publisher: name: Utah State University
Year: 1966

description: The Hyrum Project is located in northern Utah near the Cache County seat of Logan, and includes lands bordering the towns of Hyrum, Wellsville, and Mendon, Utah. The primary features of the project include a dam and reservoir on the Little Bear River, and three canals that total slightly more than 20 miles in length. Its principal purpose is to provide supplemental irrigation water to 6,800 acres of fertile land.
This project is the result of several investigations relative to the improvement of water utilization in Cache County. A report prepared in 1922 entitled, "Report on the Utilization of the Land and Water Resources of Cache Valley, Utah," stimulated interest and concern over the insufficient water supply. Beginning with this report, and until the final approval of the project in 1933, various county, state, and federal agencies worked together to devise a feasible method of increasing the supply of irrigation water in Cache Valley.
title: The Effects of Abstraction on Best NBlock First Search
Creators: name: Redd, Justin R
Publisher: name: Utah State University
Year: 2013

description: Search is an important aspect of Artificial Intelligence and many advances have been achieved in finding optimal solutions for a variety of search problems. Up until recently most search problems were solved using a serial-single threaded approach. Speed is extremely important and one way to decrease the amount of time needed to find a solution is to use better hardware. A single threaded approach is limited in this way because newer processors are not much faster than previous generations. Instead industry has added more cores to allow more threads to work at the same time. In order to solve this limitation and take advantage of newer multi-core processors, many parallel approaches have been developed. The best approach to parallel search is an algorithm named Parallel Best-N Block First Search (PBNF). PBNF relies on an abstraction function to divide up the work in a way that allows threads to work efficiently with little contention. This thesis studies the way this abstraction function chooses to build the abstraction and demonstrates that better abstractions can be built. This abstraction focuses on goal variables on ways to keep the number of abstract states as small as possible while adding as many variables as feasible.
title: Feasibility and Co-Benefits of Biomass Co-Firing: Case in Utah
Creators: name: Paudel, Bibek
Publisher: name: Utah State University
Year: 2013

description: This research examines the physical and economic feasibility of 5% biomass co-firing in the coal-fired power plants of Utah. Transportation models is used to find out the physical feasibility of 5% biomass co-firing, as well as locate the supply zone for each power plant that would minimize the transportation cost. Additional cost required for 5% biomass co-firing and the economic benefits associated with biomass co-firing are calculated. The additional cost required for 5% biomass co-firing is estimated to be $34.84 million. Previous studies on CO2 emission reduction are used to compute the economic benefit attain from CO2 reduction by selling carbon credits in the carbon trading market. Based on 2010 emission record in Utah, 5% biomass co-firing might reduce 0.71~2.13 million metric tons of CO2 and, in turn, bring the annual economic benefit of $11.37~$34.10 million assuming $16/ton of CO2 in the emission trading market. The regression model is used to find the relationship between PM emission and the human health damage. The regression results show that decreases in 1% of PM25 emission improves the human health in U.S. by 0.65%~0.67% in value. Five percent biomass co-firing generates annual economic benefits of $6.72~$9.93 million in Utah depending on the emission reduction scenarios. Note that these might not be the precise economic benefit from the biomass co-firing in Utah because elasticities estimated in the regression are expected to be lower in Utah. This is because most of power plants in Utah are located in open areas. Altogether, the economic benefit from 5% biomass co-firing is estimated to be $38.55 million assuming the medium emission reduction scenario, moderate carbon price ($16/ton of CO2) which is higher than the additional cost of biomass co-firing to generate electricity ($34.84 million). The benefit cost ratio is calculated as 1.107. Five percent biomass co-firing is economically feasible when benefits from all the positive externalities are included. The findings of the research suggest that in order to make 5% biomass co-firing physically and economically feasible, Utah needs cooperation from Idaho and the price of carbon and biomass would have to be $16 and $20, respectively.
Kick Off per JUNO
Creators: Eleonora Cossi
Publisher: name: Media Inaf
Year: 2015

Cerimonia per il via ai lavori di scavo del Jiangmen Underground Neutrino Observatory (JUNO) nella provincia del Guandong in Cina. JUNO, a cui l’Italia partecipa con l’Istituto Nazionale di Fisica Nucleare (INFN), sarà un gigantesco rivelatore sotterraneo di neutrini a scintillatore liquido
title: Nutrition Education to Minimize Health Risk: Approaches for Teaching College Students and Female High School Athletes
Creators: name: Brown, Katie Nicole
Publisher: name: Utah State University
Year: 2013

description: Adolescence is a time of increased control over food choices and dietary practices. Participating in high school sports or attending college presents unique nutritional concerns and health risks. Some female high school athletes have low energy availability (consuming inadequate calories to compensate for exercise energy expenditure), which can result in menstrual dysfunction, bone loss, and injury, also known as the female athlete triad (Triad). College students who consume diets low in fruits and vegetables and high in fast food are at increased risk for weight gain, chronic disease, and some cancers.
Nutrition education interventions that were tailored to the participants' unique nutritional concerns yielded positive results such as increased Triad knowledge among female high school athletes and increased self-efficacy and readiness to change dietary behaviors among college students. Peer-led education was preferred by college students, but not by high school students.
Green buildings and water management in Harare, Zimbabwe
Creators: name: Tanyanyiwa, Vincent Itai
name: Juba, Olivia Sakhile
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: Green buildings are structures that use environmentally responsible and resource-efficient materials throughout a building’s life-cycle from siting to design, construction, operation, maintenance, renovation, and the final demolition. Buildings consume more than twenty percent of the world’s available water. The study adopted a qualitative research design to analyse water use in buildings that are owned by Old Mutual Properties in Harare, Zimbabwe. Data were collected through structured and unstructured interviews and observation. Grey water treatment and low flow plumbing fixtures provide opportunities for industry to build high tech, low water demand projects. On average, applying water-efficient designs and products lead to less water and energy use, and a reduction in operating costs. Increased government regulation and the desire to lower energy costs are expected to drive a faster adoption of water efficient products such as ultra-low flush toilets and low-flow shower heads. The use of non-sewage and grey water for onsite uses such as site irrigation will minimize demands on the local water resources in Harare in particular and the entire country in general.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, Vol 3 No 2: Urban Water Management
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ¸ÑÑÐµÐ¼Ñ Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ, ÑÐ»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¿Ð¸ÑÐ°ÑÑÐ¸Ñ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ (0,4 ÐºÐ) Ð³Ð¸Ð¿ÐµÑÐ¼Ð°ÑÐºÐµÑÐ° ÑÐ¾ Ð²ÑÑÑÐ¾ÐµÐ½Ð½ÑÐ¼Ð¸ ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¸Ð¼Ð¸ Ð¿Ð¾Ð¼ÐµÑÐµÐ½Ð¸ÑÐ¼Ð¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ ÑÐ²ÑÑÐµ 1 ÐÐÑ
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: Ð¡ÑÐ¼Ð¸ÑÐºÐ°, ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸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: Ð­Ð»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ°
Ð­Ð»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ
Ð¾Ð´Ð½Ð¾Ð»Ð¸Ð½ÐµÐ¹Ð½ÑÐµ ÑÑ ÐµÐ¼Ñ
ÑÐ°ÑÑÐµÑ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº

description: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÑÐ°Ð±Ð¾ÑÐ°Ñ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ñ ÑÐ°Ð·Ð´ÐµÐ»Ð° Â«Ð¡Ð¸ÑÑÐµÐ¼Ð° ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸ÑÂ». ÐÑÐ»Ð¸ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸, ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð¾Ð´Ð½Ð¾Ð»Ð¸Ð½ÐµÐ¹Ð½ÑÐµ ÑÑÐµÐ¼Ñ, ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð° ÑÐ¸ÑÑÐµÐ¼Ð° Ð¾ÑÐ²ÐµÑÐµÐ½Ð¸Ñ Ð¸ Ð·Ð°Ð·ÐµÐ¼Ð»ÐµÐ½Ð¸Ñ. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¾Ð¼ ÑÐ°Ð±Ð¾ÑÐµÐ¹ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð³Ð¸Ð¿ÐµÑÐ¼Ð°ÑÐºÐµÑÐ°.
Results of the GREAT08 Challenge: An image analysis competition for cosmological lensing
Creators: name: Bridle, Sarah
name: Balan, Sreekumar T.
name: Bethge, Matthias
name: Gentile, Marc
name: Harmeling, Stefan
name: Heymans, Catherine
name: Hirsch, Michael
name: Hosseini, Reshad
name: Jarvis, Mike
name: Kirk, Donnacha
name: Kitching, Thomas
name: Kuijken, Konrad
name: Lewis, Antony
name: Paulin-Henriksson, Stephane
name: Scholkopf, Bernhard
name: Velander, Malin
name: Voigt, Lisa
name: Witherick, Dugan
name: Amara, Adam
name: Bernstein, Gary
name: Courbin, Frederic
name: Gill, Mandeep
name: Heavens, Alan
name: Mandelbaum, Rachel
name: Massey, Richard
name: Moghaddam, Baback
name: Rassat, Anais
name: Refregier, Alexandre
name: Rhodes, Jason
name: Schrabback, Tim
name: Shawe-Taylor, John
name: Shmakova, Marina
name: van Waerbeke, Ludovic
name: Wittman, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of the GREAT08 Challenge, a blind analysis challenge to infer weak gravitational lensing shear distortions from images. The primary goal was to stimulate new ideas by presenting the problem to researchers outside the shear measurement community. Six GREAT08 Team methods were presented at the launch of the Challenge and five additional groups submitted results during the 6 month competition. Participants analyzed 30 million simulated galaxies with a range in signal to noise ratio, point-spread function ellipticity, galaxy size, and galaxy type. The large quantity of simulations allowed shear measurement methods to be assessed at a level of accuracy suitable for currently planned future cosmic shear observations for the first time. Different methods perform well in different parts of simulation parameter space and come close to the target level of accuracy in several of these. A number of fresh ideas have emerged as a result of the Challenge including a re-examination of the process of combining information from different galaxies, which reduces the dependence on realistic galaxy modelling. The image simulations will become increasingly sophisticated in future GREAT challenges, meanwhile the GREAT08 simulations remain as a benchmark for additional developments in shear measurement algorithms.
description: 10 figures, 11 pages of main text, 9 pages of appendices. Submitted to MNRAS. Challenge website at http://www.great08challenge.info
Generations of waterfront regenerations: the Hamburg case
Creators: name: Vingelli, Federica
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: The design crisis, specifically in the drawing of urban planning, coincided with Port cities’ experiences of dismissing of historical and modern port due to changes in capitalist production models and, since ‘80s, have been facing the challenge of waterfront regeneration. Several earliest generations port regenerations have in turn landed in new places of tourist and cultural specialization while the challenge of the third generation plans deals with regional issues and is now called upon to consider, in addition to disused constructions and infrastructure, citizens’ and operators’ local interest along with global challenges of economy and climate change. Within a process of more than 30 years redevelopment plans tend to abandon the project-led and short-term approach in order to integrate waterfront redesign in a city and regional perspective. The port cities and their transformations are observed through the changing relationship between the two components of the city-port: evolutionary models underlines common features of port wasted areas while the Hamburg case describes the evolution of urban and territorial planning processes from a project-oriented approach to an adaptive and territorial vision making strategic, shared and long term planning the institutional framework and planning in which to rethink contemporary port city development and regeneration complex actions.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, Vol 3 No 2: Urban Water Management
Regional policies for sustainable water management and impacts on municipal planning
Creators: name: Nigro, Antonio
Publisher: name: UPLanD - Journal of Urban Planning, Landscape & environmental Design
Year: 2018

description: Environmental protection issues are gaining increasing relevance in the framework of regional and local planning. The protection and enhancement of ecological networks is one of the most significant factors, in connection with sustainable urban water management.
Several countries are revising their planning systems, in order to translate into practice the principles of ecological sustainability.
An overview of iconic examples of river ecosystem restoration within some of the most populous European urban areas showed how river restoration could give the spur to urban rehabilitation programs, giving the opportunity to increase urban quality.
This paper presents Campania regional policies regarding water protection and sustainable water management, and their influence on Provincial and Municipal planning practice, using as case study a group of fourteen municipalities located within one the most critical river basins, i.e. Sarno Valley. A research carried out by the University of Naples Federico II investigated the effects of water protection policies on municipal plans in Campania Region. The study showed that, roughly fifteen years after the regional legislative reform of 2004, the renewal rate of urban plans is still low. A deeper analysis of local planning state of the art, carried out through local plan collection and comparison, interviews and review of municipal databases, underlined the poor consideration put on sustainable water management by local planners.
description: UPLanD - Journal of Urban Planning, Landscape & environmental Design, Vol 3 No 2: Urban Water Management
Quando la supernova esplode in un lampo
Creators: Stefano Parisini
Publisher: name: Media Inaf
Year: 2015

Una ricerca internazionale a partecipazione italiana racconta una storia ancora poco conosciuta, quella di alcune stelle massicce che, collassando in supernove, producono un lampo di raggi gamma. Il commento di Cristiano Guidorzi dell’Università di Ferrara
Diffuse Radio Emission in Abell 754
Creators: name: Kale, Ruta
name: Dwarakanath, K. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a low frequency study of the diffuse radio emission in the galaxy cluster A754. We present new 150 MHz image of the galaxy cluster A754 made with the Giant Metrewave Radio Telescope (GMRT) and discuss the detection of 4 diffuse features. We compare the 150 MHz image with the images at 74, 330 and 1363 MHz; one new diffuse feature is detected. The flux density upperlimits at 330 and 1363 MHz imply a synchrotron spectral index, $α> 2$, ($S\propto ν^{-α}$) for the new feature. The 'west relic' detected at 74 MHz (Kassim et al 2001) is not detected at 150 MHz and is thus consistent with its non-detection at 1363 MHz (Bacchi et al 2003) and 330 MHz(Kassim et al 2001). Integrated spectra of all the diffuse features are presented. The fourth diffuse feature is located along the proposed merger axis (Zabludoff et al 1995) in A754 and 0.7 Mpc away from the peak of X-ray emission. We have made use of the framework of adiabatic compression model (Ensslin & Gopal-Krishna 2001) to obtain spectra. We show that the spectrum of the fourth diffuse feature is consistent with that of a cocoon of a radio galaxy lurking for about $9\times10^{7}$ yr; no shock compression is required. The other three diffuse emission have spectra steeper than 1.5 and could be cocoons lurking for longer time. We discuss other possibilities such as shocks and turbulent reacceleration being responsible for the diffuse emission in A754.
description: 13 pages inclusive of 5 figures and 3 tables. Accepted for publication in Astrophysical Journal
title: The Influence of Widowhood and Sociodemographic Moderators on Dementia and Alzheimer's Disease Risk
Creators: name: Hatch, Daniel Joseph
Publisher: name: Utah State University
Year: 2013

description: Dementia and Alzheimer's disease (AD) are highly debilitating conditions that afflict millions of elderly persons. In recent decades, biological evidence has implicated chronic stress in the etiology of these conditions. As a result, the relationship between widowhood, one of the most stressful life events, and dementia and AD has also received attention. However, studies are mixed regarding this association, and few have investigated whether this relationship is moderated by the context surrounding widowhood. This study extends this literature by investigating whether widowhood increases risk for dementia and AD and whether this risk is moderated by contextual factors including age at widowhood, remarriage after widowhood, manner of death, number of dependent and adult children at the time of widowhood, gender, presence of epsilon 4 allele of apolipoprotein E (APOE), and history of depression and antidepressant use. To do this, this investigation utilized data from the Cache County Memory Study (CCMS), a large population-based epidemiological study of dementia and AD, and the Utah Population Database (UPDB), one of the world's foremost linked genealogical databases. In Cox regression analyses that modeled time to onset of dementia and AD, gender was found to moderate the relationship between incident widowhood and dementia (HR = 1.74, 95% CI: 0.97-3.10), in that widowhood trended towards decreased risk among men (HR =0.72, CI: 0.45-1.16) but increased risk among women (HR = 1.21, CI: 0.83-1.75) in stratified models. In addition, history of depression and antidepressant use moderated the association between incident widowhood and dementia (HR = 2.63, 95% CI: 1.26-5.50) and AD (HR = 1.68, 95% CI: 1.11-2.53), in that widowhood was associated with decreased risk for dementia and AD among the never depressed (HR = 0.66, CI: 0.42-1.02 and HR = 0.54, CI: 0.31-0.92, respectively), a trend towards increased risk for AD among those with a history of antidepressant use but no depression (HR = 1.80, CI: 0.86-3.75), and with increased risk for dementia and AD among those with a history of both (HR = 1.93, CI: 0.98-3.81 and HR = 1.89, CI: 0.80-4.43). These findings advance clinical and scientific knowledge concerning the effects of widowhood on risk for dementia and AD, and underscore the importance of context in understanding this relationship.
Evidence for Non-Linear Growth of Structure from an X-ray Selected Cluster Survey using a Novel Joint Analysis of the Chandra and XMM-Newton Archives
Creators: name: Peterson, J. R.
name: Jernigan, J. G.
name: Gupta, R. R.
name: Bankert, J.
name: Kahn, S. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a large X-ray selected serendipitous cluster survey based on a novel joint analysis of archival Chandra and XMM-Newton data. The survey provides enough depth to reach clusters of flux of $\approx 10^{-14} {ergs} {cm}^{-2} {s}^{-1}$ near $z$ $\approx$ 1 and simultaneously a large enough sample to find evidence for the strong evolution of clusters expected from structure formation theory. We detected a total of 723 clusters of which 462 are newly discovered clusters with greater than 6$σ$ significance. In addition, we also detect and measure 261 previously-known clusters and groups that can be used to calibrate the survey. The survey exploits a technique which combines the exquisite Chandra imaging quality with the high throughput of the XMM-Newton telescopes using overlapping survey regions. A large fraction of the contamination from AGN point sources is mitigated by using this technique. This results in a higher sensitivity for finding clusters of galaxies with relatively few photons and a large part of our survey has a flux sensitivity between $10^{-14}$ and $10^{-15} {ergs} {cm}^{-2} {s}^{-1}$. The survey covers 41.2 square degrees of overlapping Chandra and XMM-Newton fields and 122.2 square degrees of non-overlapping Chandra data. We measure the log N-log S distribution and fit it with a redshift-dependent model characterized by a luminosity distribution proportional to $e^{-\frac{z}{z_0}}$. We find that $z_0$ to be in the range 0.7 to 1.3, indicative of rapid cluster evolution, as expected for cosmic structure formation using parameters appropriate to the concordance cosmological model.
description: 16 pages, 26 figures, Accepted for publication in ApJ
title: ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÑÐ°Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð°Ð½ÑÐµÐ½Ð½Ð¾Ð¹ ÑÐµÑÑÑÐºÐ¸ Ð´Ð»Ñ Ð¿ÑÐ¸ÑÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð³Ð»Ð¾Ð±Ð°Ð»ÑÐ½ÑÑ ÑÐ¿ÑÑÐ½Ð¸ÐºÐ¾Ð²ÑÑ Ð½Ð°Ð²Ð¸Ð³Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼ Ð¿ÑÐ¸ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸ Ð¿Ð¾Ð¼ÐµÑ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¥Ð¾Ð´Ð°Ð½Ð¸Ñ, ÐÐ½Ð´ÑÐµÐ¹
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: 2016
Subjects: ÑÐ°Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð°Ñ Ð°Ð½ÑÐµÐ½Ð½Ð°Ñ ÑÐµÑÐµÑÐºÐ°
ÐºÐ°ÑÐµÑÑÐ²Ð¾ ÑÐ¸Ð³Ð½Ð°Ð»Ð°
Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ðµ ÑÐ¸Ð³Ð½Ð°Ð»-ÑÑÐ¼
ÐºÐ¾ÑÑÐµÐ»ÑÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÑÐ½ÐºÑÐ¸Ñ
Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÐ¹ Ð±ÐµÐ»ÑÐ¹ Ð³Ð°ÑÑÑÐ¾Ð²ÑÐºÐ¸Ð¹ ÑÑÐ¼
phased array antenna
signal quality
signal to noise ratio
the correlation function
additive white gaussian noise

description: Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð¿Ð¾Ð¼ÐµÑ Ð½Ð° Ð¿ÑÐ¸ÐµÐ¼ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð³Ð»Ð¾Ð±Ð°Ð»ÑÐ½ÑÑ Ð½Ð°Ð²Ð¸Ð³Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ¿ÑÑÐ½Ð¸ÐºÐ¾Ð²ÑÑ ÑÐ¸ÑÑÐµÐ¼. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ÐµÐ¼Ð° ÑÐ¿ÑÑÐ½Ð¸ÐºÐ¾Ð²ÑÑ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð¿ÑÐ¸ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸ Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÑ Ð¸ ÐµÑÑÐµÑÑÐ²ÐµÐ½Ð½ÑÑ Ð¿Ð¾Ð¼ÐµÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¤ÐÐ . Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ ÐµÑÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð¿Ð¾Ð¼ÐµÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÑÑÑ Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÐ¹ Ð±ÐµÐ»ÑÐ¹ Ð³Ð°ÑÑÑÐ¾Ð²ÑÐºÐ¸Ð¹ ÑÑÐ¼, Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¿ÑÐ¾ÑÑÐµÐ¹ÑÐµÐ¹ Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð¿Ð¾Ð¼ÐµÑÐ¸, Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐµÐ¹ Ð½Ð° Ð¼Ð¾Ð´ÑÐ»Ð¸ÑÑÐµÐ¼ÑÐ¹ ÑÐ¸Ð³Ð½Ð°Ð», Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÑÑÑ Ð¿Ð¾Ð¼ÐµÑÐ° Ð² Ð²Ð¸Ð´Ðµ ÑÐ¸Ð½ÑÑÐ¾Ð¸Ð´Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ¸Ð³Ð½Ð°Ð»Ð°. ÐÐ¾Ð»ÑÑÐµÐ½Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸, Ð¿Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑÐ¸Ðµ ÑÐ¾Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ðµ ÑÑÐ¾Ð²Ð½Ñ Ð¿Ð¾Ð»ÐµÐ·Ð½Ð¾Ð³Ð¾ ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð¸ ÑÑÐ¾Ð²Ð½Ñ Ð¿Ð¾Ð¼ÐµÑÐ¸, Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸Ð²Ð°ÑÑÐµÐµ Ð·Ð°Ð´Ð°Ð½Ð½Ð¾Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð¾ Ð´Ð»Ñ ÑÐ»ÑÑÐ°Ñ Ð¾Ð´Ð½Ð¾ÐºÐ°Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð´Ð²ÑÑÐºÐ°Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¸ÑÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð°.
description: The work examines the impact of interference to the reception of signals of global navigation satellite systems. The investigation of the possibility of increasing the BER performance of reception of satellite signals when exposed to natural and artificial interferences using phase-array antenna. As a natural interference used an additive white Gaussian noise, as the simplest of artificial interference acting on the modulated signal using the interference as a sine wave. The dependencies, showing the ratio of the useful signal level and interference level to provide the desired quality for the case of single-channel and two-channel signal reception.