Multiple degree-of-freedom force and moment measurement for static propulsion testing using magnetic suspension technology

Innovative Information Systems (IIS), Inc. is in the process of designing and fabricating a high bandwidth force and moment measuring device (i.e. the Magnetic Thruster Test Stand). This device will use active magnetic suspension to allow direct measurements of the forces and torques generated by the rocket engines of the missile under test. The principle of operation of the Magnetic Thruster Test Stand (MTTS) is based on the ability to perform very precise, high bandwidth force and position measurements on an object suspended in a magnetic field. This ability exists due to the fact that the digital servo control mechanism that performs the magnetic suspension uses high bandwidth (10 kHz) position data (via an eddy-current proximity sensor) to determine the amount of force required to maintain stable suspension at a particular point. This force is converted into required electromagnet coil current, which is then output to a current amplifier driving the coils. A discussion of how the coil current and magnetic gap distance (the distance between the electromagnet and the object being suspended) is used to determine the forces being applied from the suspended assembly is presented

H-Index

The h-index is a metric that uses both the number of an author’s publications along with the number of times those publications have been cited by other authors in an attempt to gauge an author’s perceived academic authority in their given fields of research. Balandin and Stancliffe explain how the h-index functionally operates: “If all of a researcher’s total of N publications are listed in order of the number of times they have been citd – from most to least – then that researcher’s h-index is the number of papers (h) that have been cited h or more times.” For example, an author with eight publications and those papers have been cited 10, 10, 9, 8, 8, 3, 2, 0 the author’s h-index would be five because they have five papers that are cited five or more times. The h-index was originally developed by a Jorge Hirsch, a physicist at University of California at San Diego. He developed the index, which is sometimes called the Hirsch index or the Hirsch number, in order to determine a physicist’s academic impact on the field. Due to the simplicity of the single digit number the index is able to produce, scientific journal editors have been a main audience that have taken notice of it; Nature and Science use the index to measure research performance. Although the index was originally intended to measure the academic authority of an individual within physics, many departments and researchers outside of the sciences also use the h-index in the promotion and tenure processes

Population Impacts On Surface Water Quality In The Little Papillion Creek Watershed.

This study involved monthly monitoring of water quality at 30 rural and urban sites in Douglas County, Nebraska from January 1996, to December 1996. Eight water parameters were measured or calculated for each sample and the results were then analyzed. Nitrate, potassium, chloride and sodium were the four parameters used in the thesis to display the strongest relationships between the land uses and quality of water. This thesis examines how rural and urban land uses affect the concentrations of the chemical constituents. Additionally, this thesis will correlate the number of businesses and residents with nitrate, potassium, chloride and sodium. Rural area sample sites averaged higher concentrations of both nitrate and potassium. Urban area sample sites, however, averaged higher concentrations of sodium and chloride. Sodium and chloride had the strongest positive correlation associated with the number of businesses and residents within an area. This relationship may result from the use of these chemicals in mainly urban areas as de-icing agents for streets. Nitrate and potassium had some negative correlations values, but not as strong as sodium and chloride. This may be because nitrate and potassium used fertilizers, in both rural and urban areas. This study documents the relationship between urbanization and surface water quality. In addition, this study also provides a baseline study for future comparison. The results suggest the need to consider water quality effects when planning for urban expansion and monitoring of urban areas

Apie Barnaulo Pokrovo cerkvės (Šventosios mergelės užtarėjos soboro) freskų kūrybos ir tapybos istoriją

The establishment of Soviet power in Barnaul is connected with tragic events for the Orthodox Church: the closing of churches, the punishment of priests who did not accept the “godless power”, confiscation of church property, and the ban on religious education for children and the preaching of the Orthodox faith1. In the context of historical events, it is appropriate to reflect on the visual narrative of the fresco painting of the Pokrovsky Cathedral and understand what is presented here: a standard set of copies of well-known examples from the capital recommended by the Holy Synod, selected by the Prior and mechanically transferred by a Siberian artist into the interior of a provincial church or an original fresco programme, although based on the well-established system of iconographic canons and images but created for the purpose, which form the codenarrative, understandable only for the believer from the “recognisable” models and storytelling scenes, to create a unified spiritual space, “the mirror of consciousness”, sensitively reflecting the inner life of the individual (his doubts, fears, hopes), reinforcing it through the visualisation of marks of the Divine power − the analogy of his own pain with the suffering of the Son of God. The purpose of this research is to analyse the meaningful content of the frescoes and the system of their interaction – connectedness to the architectural space of the church. At the same time, the research concentrates primarily on the meaning of the painting programme. There will be no attempt to criticise the artistic value of paintings since it is difficult to distinguish the original message after numerous renewals and restorations.Sovietų režimo įsigalėjimas Barnaule siejamas su ortodoksų bažnyčią ištikusiais targiškais įvykiais: cerkvių uždarymu, bausmėmis šventikams, kurie nepripažino “bedievės valdžios”, bažnytinio turto konfiskavimu, religinio lavinimo vaikams draudimu ir ortodoksų tikėjimo skelbimu38. Šių istorinių įvykių kontekste Pokrovo katedos freskų tapyba suteikia progą susimąstyti apie vizualuoju freskų naratyvo bei į jas įtapytas prasmes: ar šios freskos tėra standartinis plačiai išplitusių pavyzdžių aptinkamų sostinėje ir rekomenduojamų Šventojo Sinodo kopijų rinkinys, parinktų cerkvės vyresniojo šventiko ir Sibiro menininkų mechaniškai transformuotų ant provincijos cerkvės sienų. O gal jos atskleidžia originalią freskų dėlionės programą nors ir sietiną su nusistovėjusiu ikonografiniu kanonu ir jo atvaizdais, bet atkurtų siekiant tam tikro tikslo, kuris koduotu naratyvu, suprantamu tik tikinčiąjam iš “atpažįstamų” pavyzdžių ir pasakojamųjų epizodų atskleidžia nepakartojamą vientisą dvasinę erdvę, “sąmonės atspindį”, jautriai parodydamas vidinį individo pasaulį (žmogaus abejones, baimes, viltis), aktualizuojant jį per Dieviškosios galios ženklus - per žmogaus kančių analogiją su Dievo Sūnaus kančia. Šio tyrimo tikslas ištirti freskų prasmių turinį ir freskų prasminių sąsajų sistemą– jų ryšį su archtektūrine crekvės erdve. Tačiau tyrimas, visų pirma, nukreiptas į tapybos projekto prasmes. Menininkų tapybos kritikuoti neketinama, nes po daugybės atnaujinimo ir restauravimo darbų sunku atsekti autentišką tekstūrą

THE STATE OF THE DIASTOLIC FUNCTION OF THE MYOCARDIUM IN PATIENTS WITH ATRIAL FIBRILLATION AND THE CHRONIC HEART FAILURE

The article is related to the state of the diastolic function of left ventricular myocardium, determined from the data of Doppler echocardiography, in patients with atrial fibrillation suffering from the chronic heart failure of varying severity. Besides, the authors have determined the correlation between the diastolic dysfunction of the myocardium, the systolic function and the morphometric peculiarities of the left chambers of the heart

Lycopene, the Major Pigment of Podosordaria leporina

The lipid-soluble pigments were extracted from the mycelium of Podosordaria leporina and analyzed by thin-layer chromatography and absorption spectroscopy. Lycopene was found to be the major pigment produced when mycelium is exposed to blue light

Neural Diffusion Models

Diffusion models have shown remarkable performance on many generative tasks. Despite recent success, most diffusion models are restricted in that they only allow linear transformation of the data distribution. In contrast, broader family of transformations can potentially help train generative distributions more efficiently, simplifying the reverse process and closing the gap between the true negative log-likelihood and the variational approximation. In this paper, we present Neural Diffusion Models (NDMs), a generalization of conventional diffusion models that enables defining and learning time-dependent non-linear transformations of data. We show how to optimise NDMs using a variational bound in a simulation-free setting. Moreover, we derive a time-continuous formulation of NDMs, which allows fast and reliable inference using off-the-shelf numerical ODE and SDE solvers. Finally, we demonstrate the utility of NDMs with learnable transformations through experiments on standard image generation benchmarks, including CIFAR-10, downsampled versions of ImageNet and CelebA-HQ. NDMs outperform conventional diffusion models in terms of likelihood and produce high-quality samples

Psychological stability of indigenous students of the Russian Arctic zone

Results of an assessment study on coping strategies and psychological state of indigenous students (Chukchi) of the Chukotsky Multidisciplinary College in the city of Anadyr under the COVID-19 pandemic conditions were presented in the paper. Methods. Psychological testing was performed with the following standardized methods: the coping test of R. Lazarus and S. Folkman (Ways of Coping Questionnaire, WCQ), the Toronto Alexithymic Scale (TAS-26), The Level of Social Frustration (adolescent version of LSF), and Neuro Psychic Adaptation (NPA) by I.N. Gurvich. Results. Overall, male students’ preferred coping strategies were “escape-avoidance”, “self-control”, and “problem solving planning”. Female students chose “escape-avoidance” and “positive reassessment”. A pronounced preference for the non-adaptive “escape-avoidance” strategy was observed in 56% of boys and 75% of girls. Both male and female students’ least used strategy was “taking responsibility”. More than 40% of the examined students tended to have signs of neuroticism and stress. Girls were mainly characterized by neuro psychic instability. On average, both male and female students proved to be at risk based on their level of alexithymia. Alexithymic traits were characteristic of 69% of boys and 86% of girls. Social frustration about any fields was uncertain. However, 20-27% of students expressed dissatisfaction about their mental health and more than a third (33-40%) felt unhappy with their health in general. Conclusion. A big number of students, both males and females, exhibited low neuro psychic stability and highly intensed copings which, along with alexithymia and under prolonged exposure to unfavorable factors, can cause increased vulnerability to stressful situations, lowered overall psychological stability, disturbed reactions of adaptation, and depleted functional adaptive potential

Research-based learning in the education process of a higher education institution

The article examines the issue of research-based learning in the education process of institutions of higher education. The aspect of formation of research skills in students is central in our research. The following research methods have been applied: theoretical ‒ the secondary analysis of philosophical, psychological, and pedagogical sources on the issue under consideration, which has given the possibility to systematize and generalize the available data; comparative ‒ has allowed finding a new angle in the issue of the role of research-based learning in the education process of higher education institutions. Besides, in our research we also rely on the data gathered personally while implementing curriculum direted on the development of research-and-development skills in students of a higher education institution. The results of the study allow concluding that that the research-based learning involves the introduction of scientific research methods into the process of educational cognition at all its stages (from perception to application in practice), determines ways of organizing educational and extracurricular research activities of students. Its result is a set of acquired knowledge and formed skills when solving research tasks in various social and professional situations