56 research outputs found
Организация комплектации объектов строительства в нефтегазовой отрасли в системе SAP/r3
Объектом исследования является предприятие ООО "РН-Ванкор".
Цель работы – провести анализ управления в ООО "РН-Ванкор", подробно рассмотреть комплектацию объекта УПСВ-С, ведение заявочной компании на поставку материально-технических ресурсов, создание заявок на отгрузку МТР с собственных складов на подрядные организации в системе SAP/R3.The object of the research is the enterprise LLC RN-Vankor.
The purpose of the work is to analyze the management in LLC RN-Vankor, to consider in detail the assembly of the UPSV-S facility, the maintenance of the application company for the supply of material and technical resources, the creation of applications for the shipment of materials and equipment from its own warehouses to the contractors in the SAP / R3 system
Информационная система поддержки принятия решений в задачах организации учебного процесса 2-го уровня
Объектом исследования является (ются) характеристики и деятельность студента во время обучения, влияющая на его учебно-научный потенциал
Цель работы – создание ИСППР для оценки учебно-научного потенциала студентовThe subject is characteristics and activity of students which affects their progress and achievements in science during their education
The goal of the thesis is to create the informational decision support system for estimation scientific and educational potential of student
Электропривод литцекрутильной машины
Целью ВКР является рассмотрение законов регулирования скорости системы Преобразователь частоты – Асинхронный двигатель для построения имитационной модели во вращающейся системе координат с возможной реализацией в системе регулируемого электропривода литцекрутильной машины.The purpose of the WRC is to consider the laws of regulating the speed of the system of a frequency converter - an asynchronous motor for constructing a simulation model in a rotating coordinate system with a possible implementation of a twisting machine in a controlled electric system
Планирование карьеры в рамках деятельности Assessment- центра в обществе с ограниченной ответственностью микрофинансовая компания "Быстроденьги"
Объектом исследования является планирование карьеры в организации.
Цель работы – рассмотреть особенности планирования карьеры в рамках деятельности Аssessment-центра в ООО МФК "Быстроденьги".
В результате исследования были предложены пути совершенствования системы планирования карьеры с помощью технологии Аssessment-центра.The object of the research is career planning in the organization.
The purpose of the work is to consider the features of career planning in the framework of the activity of the Assessment center in LLC MFC "Bystrodengi".
As a result of the study, ways to improve the career planning system using the technology of the Asssessment center were proposed
Incidence, mechanisms, and consequences of adaptive habitat selection by the dickcissel (Spiza americana)
Most animals display preferences when faced with the choice of habitats in which to settle. A key question that arises from these behaviors is whether preferences represent adaptive habitat selection—do animals occupying preferred habitats incur fitness benefits? A prediction based on natural selection suggests that preferences should increase fitness, but this prediction is not always supported. Several factors may cause preference-fitness mismatches, including temporal variability of variables driving reproductive success, tradeoffs across spatial scales or among fitness components, and anthropogenic changes disrupting historic relationships between habitat preferences and habitat quality.
This dissertation presents three studies I conducted on the habitat preferences and reproductive success of dickcissels (Spiza americana) in the Grand River Grasslands of southern Iowa. I first tested for signals of adaptive habitat selection, examining whether male and female birds’ preferences among territories and larger habitat patches improve their ability to attract mates, avoid parasitism by brown-headed cowbirds (Molothrus ater), and produce robust offspring. Dickcissels engaged in adaptive habitat selection in some respects—such as preferring territories associated with high offspring condition and patches where parasitism was infrequent—but there was strong variation across sexes, spatial scales, years, and reproductive components.
Next, I examined whether dickcissels used vegetation cues to select high-quality habitats. I measured multiple vegetation features in territories and patches and compared these to dickcissel habitat preferences and fitness metrics. Although dickcissels preferred specific vegetation features (again, with variation across sexes and scales), and specific vegetation features were associated with fitness (again, with variation across reproductive metrics), I found limited evidence that vegetation mediated adaptive habitat selection.
Finally, I further studied the impacts of vegetation on dickcissel reproduction by focusing on the relative impacts of human-altered habitat components (invasive plants and broad-scale land cover) on nest survival and parasitism. I found that an invasive grass common throughout the Midwest region (tall fescue, Schedonorus arundinaceus) reduced nest survival and increased parasitism, whereas increasing woodland cover in the landscape reduced parasitism.
In these studies, I illuminated proximate and ultimate forces shaping the reproductive ecology of dickcissels. I demonstrated that habitat preferences—and thus the spatiotemporal dynamics of population distributions—benefit specific components of reproductive success at particular spatial scales, while benefits to other reproductive metrics are variable across time. These results show that because fitness results from a wide variety of ecological processes, accurate assessments of adaptive habitat selection require a complex perspective. In addition, I have contributed to our knowledge of how vegetation influences dickcissel settlement patterns, while showing that preferred vegetation components have little influence on fitness. Other mechanisms (e.g., site fidelity, conspecific attraction, food availability, predator abundance) may thus play a stronger role in facilitating adaptive habitat selection. At the same time, I found strong evidence that vegetation altered by human activity shapes dickcissel habitat quality, and my results suggest that controlling invasive tall fescue may improve dickcissel nest success
Video-Based Hand Movement Analysis of Parkinson Patients before and after Medication Using High-Frame-Rate Videos and MediaPipe
Tremor is one of the common symptoms of Parkinson’s disease (PD). Thanks to the recent evolution of digital technologies, monitoring of PD patients’ hand movements employing contactless methods gained momentum. Objective: We aimed to quantitatively assess hand movements in patients suffering from PD using the artificial intelligence (AI)-based hand-tracking technologies of MediaPipe. Method: High-frame-rate videos and accelerometer data were recorded from 11 PD patients, two of whom showed classical Parkinsonian-type tremor. In the OFF-state and 30 Minutes after taking their standard oral medication (ON-state), video recordings were obtained. First, we investigated the frequency and amplitude relationship between the video and accelerometer data. Then, we focused on quantifying the effect of taking standard oral treatments. Results: The data extracted from the video correlated well with the accelerometer-based measurement system. Our video-based approach identified the tremor frequency with a small error rate (mean absolute error 0.229 (±0.174) Hz) and an amplitude with a high correlation. The frequency and amplitude of the hand movement before and after medication in PD patients undergoing medication differ. PD Patients experienced a decrease in the mean value for frequency from 2.012 (±1.385) Hz to 1.526 (±1.007) Hz and in the mean value for amplitude from 8.167 (±15.687) a.u. to 4.033 (±5.671) a.u. Conclusions: Our work achieved an automatic estimation of the movement frequency, including the tremor frequency with a low error rate, and to the best of our knowledge, this is the first paper that presents automated tremor analysis before/after medication in PD, in particular using high-frame-rate video data
The Higgs as a Portal to Plasmon-like Unparticle Excitations
12 LaTeX pages, 2 figures.-- Published in: JHEP04(2008)028.-- Final full-text version available at: http://dx.doi.org/10.1088/1126-6708/2008/04/028.A renormalizable coupling between the Higgs and a scalar unparticle operator O_U of non-integer dimension d_U<2 triggers, after electroweak symmetry breaking, an infrared divergent vacuum expectation value for O_U. Such IR divergence should be tamed before any phenomenological implications of the Higgs-unparticle interplay can be drawn. In this paper we present a novel mechanism to cure that IR divergence through (scale-invariant) unparticle self-interactions, which has properties qualitatively different from the mechanism considered previously. Besides finding a mass gap in the unparticle continuum we also find an unparticle pole reminiscent of a plasmon resonance. Such unparticle features could be explored experimentally through their mixing with the Higgs boson.Work supported in part by the European Commission under the European Union through
the Marie Curie Research and Training Networks “Quest for Unification” (MRTN-CT-
2004-503369) and “UniverseNet” (MRTN-CT-2006-035863); by the Spanish Consolider-
Ingenio 2010 Programme CPAN (CSD2007-0042); by a Comunidad de Madrid project (P-ESP-00346) and by CICYT, Spain, under contracts FPA 2007-60252 and FPA 2005-02211
Stereologische Untersuchungen zu postnatalen Änderungen der Anzahl von Granularzellen und Pyramidenzellen im Hippocampus von Mäusen nach einer schwachen pränatalen Röntgenbestrahlung
Kortikale Korrelate des Greifens und ihre Fehlfunktion [kumulative Habilitationsschrift]
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