Search results for "Process"
showing 10 items of 22310 documents
Performance of a membrane-coupled high-rate algal pond for urban wastewater treatment at demonstration scale
2020
[EN] The objective of this study was to evaluate the performance of an outdoor membrane-coupled high-rate algal pond equipped with industrial-scale membranes for treating urban wastewater. Decoupling biomass retention time (BRT) and hydraulic retention time (HRT) by membrane filtration resulted in improved process efficiencies, with higher biomass productivities and nutrient removal rates when operating at low HRTs. At 6 days of BRT, biomass productivity increased from 30 to 66 and to 95 g.m(-3).d(-1) when operating at HRTs of 6, 4 and 2.5 days, respectively. The corresponding nitrogen removal rates were 4, 8 and 11 g N.m(-3).d(-1) and the phosphorous removal rates were 0.5, 1.3 and 1.6 g P…
Reward anticipation revisited- evidence from an fMRI study in euthymic bipolar I patients and healthy first-degree relatives.
2017
Abstract Background Symptomatic phases in bipolar disorder (BD) are hypothesized to result from a hypersensitive behavioral activation system (BAS) being sensitive to potential rewards. However, studies on the neuronal underpinnings of reward anticipation in BD are scarce with contradictory findings and possibly confounded by effects of dopaminergic medication, necessitating further research on dysfunctional motivation in BD. Moreover, its role as vulnerability marker for BD is unclear. Methods Functional imaging was conducted in 16 euthymic BD-I patients free from dopaminergic medication and 19 healthy first-degree relatives using a monetary incentive delay task and compared to parallelize…
A limited feedback scheme based on spatially correlated channels for coordinated multipoint systems
2012
High spectral efficiency can be achieved in the downlink of multi-antenna coordinated multi-point systems provided that the multiuser interference is appropriately managed at the transmitter side. For this sake, downlink channel information needs to be sent back by the users, thus reducing the rate available at the uplink channel. The amount and type of feedback information required has been extensively studied and many limited feedback schemes have been proposed lately. A common pattern to all of them is that achieving low rates of feedback information is possible at the cost of increasing complexity at the user side and, sometimes, assuming that some statistics of the channel are known. I…
Ordinary muon capture studies for the matrix elements in ββ decay
2018
Precise measurement of $\gamma$-rays following ordinary (non-radiative) capture of negative muons by natural Se, Kr, Cd and Sm, as well as isotopically enriched $^{48}$Ti, $^{76}$Se, $^{82}$Kr, $^{106}$Cd and $^{150}$Sm targets was performed by means of HPGe detectors. Energy and time distributions were investigated and total life time of negative muon in different isotopes was deduced. Detailed analysis of $\gamma$-lines intensity allows to extract relative yield of several daughter nuclei and partial rates of ($\mu$,$\nu$) capture to numerous excited levels of the $^{48}$Sc, $^{76}$As, $^{82}$Br, $^{106}$Ag and $^{150}$Tc isotopes which are considered to be virtual states of an intermedia…
A computer-assisted experiment to study the influence of the point spread function in the image formation process
2018
[EN] We present a new open experimental setup assisted with LabView to be used to teach the concept of the point spread function (PSF). The PSF describes the response of an image-forming system to a point object. The PSF concept is of fundamental importance in optics since the output of an image-forming system can be simulated as the convolution of the PSF with the input object. In this work, a new graphical user interface has been developed to obtain a real-time measure of the PSF and the corresponding images provided by different lenses and pupils with different sizes and shapes. From a didactical point of view, the proposed method allows students to interpret the results in a visual and …
Foreign Aid to Education in Sub-Saharan Africa : How Useful Is It?
1988
International audience
Engineering in-plane mechanics of electrospun polyurethane scaffolds for cardiovascular tissue applications
2021
Effective cardiovascular tissue surrogates require high control of scaffold structural and mechanical features to match native tissue properties, which are dependent on tissue-specific mechanics, function heterogenicity, and morphology. Bridging scaffold processing variables with native tissue properties is recognized as a priority for advancing biomechanical performance of biomedical materials and, when translated to the clinical practice, their efficacy. Accordingly, this study selected electrospinning on a rotating cylindrical target as an apparatus of broad application and mapped the relationship between key processing variables and scaffold mechanics and structure. This information was…
Project DyAdd : Nonlinguistic theories of dyslexia predict intelligence
2020
Two themes have puzzled the research on developmental and learning disorders for decades. First, some of the risk and protective factors behind developmental challenges are suggested to be shared and some to be specific for a given condition. Second, language-based learning difficulties like dyslexia are suggested to result from or correlate with also nonlinguistic aspects of information processing. In the current study, we investigated how adults with developmental dyslexia and ADHD as well as healthy controls cluster across various dimensions designed to tap the prominent nonlinguistic theories of dyslexia. Participants were 18–55-year-old adults with dyslexia (n = 36), ADHD (n = 22), and…
Komunikatīvās kompetences veidošanās pirmās klases skolēniem integrētajās nodarbībās
2019
Bakalaura darba tēma ir „1. klases skolēnu komunikatīvās kompetences attīstība integrētajās nodarbībās”, darba autore Sintija Plinka, bakalaura darba vadītāja Anita Petere. Bakalaura darba pētījuma objekts ir mācību process 1. klasē, bet pētījuma priekšmets -komunikatīvā kompetence. Darbā tika izvirzīta pētījuma hipotēze - septiņgadīgu bērnu komunikatīvās kompetences pilnveidē integrētājās nodarbībās būs vērojams progress, ja temats būs atbilstošs skolēnu vajadzībām, mācību process skolēnos raisīs interesi, mācību saturs būs izvēlēts atbilstošs skolēnu spējām. Bakalaura darba mērķis izpētīt integrēto mācību stundu iespējas komunikatīvās kompetences attīstīšanā 1. klases skolēniem. Rakstot s…
Vecākā pirmsskolas vecuma bērnu pozitīva pašvērtējuma veidošana skolotāju un vecāku sadarbības procesā
2019
Bakalaura darba autore Veronika Vintere. Bakalaura darba tēma “Vecākā pirmsskolas vecuma bērnu pozitīva pašvērtējuma veidošanās skolotāju un vecāku sadarbības procesā”. Pētījuma mērķis - teorētiski izzināt un praktiski pētīt skolotāju un vecāku sadarbības ietekmi bērnu pozitīva pašvērtējuma veidošanā. Darbu veido divas daļas – teorētiskā un praktiskā. Darba teorētiskajā daļā autore analizēja atziņas par 5-6 gadu bērnu pozitīva pašvērtējuma veicināšanu vecāku un skolotājas sadarbības procesā. Darba pētījuma daļā autore analizēja un pētīja skolotāju un vecāku sadarbības ietekmi uz bērnu pozitīva pašvērtējuma veidošanos, izmantojot skolotājas izstrādāto sadarbības plānu. Tika izstrādāti kritēr…