Search results for "PG"
showing 10 items of 1521 documents
Binary and tertiary combinations of 3-ADON, 15-ADON and AOH mycotoxins on HepG2 cells: Evaluation of cytotoxic effects and detection of metabolite pr…
2015
Effects of different emulsifiers and refining time on rheological and textural characteristics of compound chocolate
2018
The purpose of this study was to investigate the possibility of producing reduced fat dark compound chocolate in the ball mill refiner and using some selected emulsifiers. The effects of selected emulsifiers including lecithin, Polyglycerol polyricinoleate (PGPR) and citrem in two levels and two refining times on the characteristics such as moisture, particle size, hardness and rheological properties of the samples was examined. Data analysis revealed that the Casson model was appropriate to describe the rheological behavior of the samples containing lecithin and citrem; however, Power law model was appropriate for the samples containing PGPR. The results showed that citrem is the most effe…
Fiberless, Multi-Channel fNIRS-EEG System Based on Silicon Photomultipliers: Towards Sensitive and Ecological Mapping of Brain Activity and Neurovasc…
2020
Portable neuroimaging technologies can be employed for long-term monitoring of neurophysiological and neuropathological states. Functional Near-Infrared Spectroscopy (fNIRS) and Electroencephalography (EEG) are highly suited for such a purpose. Their multimodal integration allows the evaluation of hemodynamic and electrical brain activity together with neurovascular coupling. An innovative fNIRS-EEG system is here presented. The system integrated a novel continuous-wave fNIRS component and a modified commercial EEG device. fNIRS probing relied on fiberless technology based on light emitting diodes and silicon photomultipliers (SiPMs). SiPMs are sensitive semiconductor detectors, whose large…
Introducción al diseño de sistemas integrados
2014
Material docente perteneciente a la asignatura Sistemas Integrados que se imparte en el Máster Oficial de Ingeniería Electrónica de la ETSE-UV. Los Sistemas Digitales Avanzados son aquellos en los que el núcleo del sistema es uno de los dispositivos de computación usual. En este bloque se realiza un estudio del estado del arte de este tipo de dispositivos y se presentan las tres metodologías empleadas para su diseño: software, hardware y codiseño. Se realiza una explicación de la arquitectura de un Sistema Empotrado "software" basado en MicroBlaze tanto desde el punto de vista teórico como práctico. Para esto último, se incluye una práctica guiada en la que se describen los pasos a seguir p…
A High speed data link optimization for digitalized transfer to processing FPGA
2021
State-of-the-art arrays of detectors, that require digital processing, may have a sizeable number of digitalized signal links. This is the case in several experimental nuclear physics instruments. Moreover, the data rate of the sampled signals, defined primary by the signal bandwidth of the individual detectors, may not exhaust the capabilities of a single FPGA transceiver input. The preprocessing is usually carried out in a modern FPGA with transceiver data rate capabilities over 10Gbps. Moreover, cost effective FPGA have a limited number of transceivers for given FPGA processing capabilities. The investigation of a cost-effective and efficient solution to the mismatch between both data ra…
Chiroptical Phenomena in Reverse Micelles: The Case of (1R,2S)- Dodecyl (2-hydroxy-1-methyl-2-phenylethyl)dimethylammonium Bromide (DMEB)
2014
(1R,2S)-Dodecyl(2-hydroxy-1-methyl-2-phenylethyl)dimethylammonium bromide (DMEB) aggregates dispersed in carbon tetrachloride have been investigated by Fourier transform infrared (FT-IR), vibrational circular dichroism (VCD) and 1H nuclear magnetic resonance (NMR) spectroscopy at various surfactant concentration and water-to-surfactant molar ratio. Experimental data indicate that, even at the lowest investigated concentration and in absence of added water, DMEBmolecules associate in supramolecular assemblies. At higherDMEBconcentration the aggregates can confine watermolecules,making it plausible to think thatDMEB form reverse micelles and that watermolecules are quite uniformly distributed…
An Optimized Architecture for CGA Operations and Its Application to a Simulated Robotic Arm
2022
Conformal geometric algebra (CGA) is a new geometric computation tool that is attracting growing attention in many research fields, such as computer graphics, robotics, and computer vision. Regarding the robotic applications, new approaches based on CGA have been proposed to efficiently solve problems as the inverse kinematics and grasping of a robotic arm. The hardware acceleration of CGA operations is required to meet real-time performance requirements in embedded robotic platforms. In this paper, we present a novel embedded coprocessor for accelerating CGA operations in robotic tasks. Two robotic algorithms, namely, inverse kinematics and grasping of a human-arm-like kinematics chain, ar…
Tautas apgaismības idejas latviešu laicīgajā literatūrā 18.gs. otrajā pusē un 19.gs. sākumā
2013
Elektroniskā versija nesatur pielikumus
Problēmrisināšanas uzdevumi dabaszinību apguvē 4.-6. klasē
2022
Pieredzes darbs “Problēmrisināšanas uzdevumi dabaszinību apguvē 4.-6. klasē” ir pieredzē balstīts darbs, kura mērķis bija apkopot informāciju par problēmrisināšanas uzdevumu lietošanu un izstrādāt uzdevumu piemērus dabaszinību apguvei pamatskolā. Darba izstrāde notika vispārizglītojošas skolas dabaszinību stundās trīs 4. klasēs, vienā 5. klasē un vienā 6. klasē. Rezultātā tika izstrādāti un aprobēti trīs tematu plāni dabaszinību apguvei 4., 5. un 6. klasē, stundu plāni, metodiskie līdzekļi un vērtēšanas metodika problēmrisināšnas uzdevumam tematos “Gaisma” (4. klase), “Dabas resursi” (5. klase) un “Šūna, audi, organisms”(6. klase).
Pierādīšanas pienākuma īpatnības darba strīdos, kas izriet no darba tiesiskajām attiecībām.
2020
Maģistra darba tēma ir „Pierādīšanas pienākuma īpatnības darba strīdos, kas izriet no darba tiesiskajām attiecībām”. Darbs veltīts pierādīšanas pienākuma īpatnībām darba strīdos, kas rodas starp darba devēju un darba ņēmēju darba tiesiskajās attiecībās. Tā kā arvien biežāk darba strīdi, kas radušies darba tiesiskajās attiecībās tiek risināti tiesā, aktuāls jautājums par to kādi pierādījumi jāiesniedz, kādus faktus vērtē tiesa. Analizējot pierādīšanas pienākuma īpatnības darba strīdos, jānorāda uz tā neviennozīmīgo regulējumu, kas daudzos gadījumos maldina darbinieku kā prasītāju vai atbildētāju lietā. Maģistra darbs sastāv no 4 nodaļām. Darba pirmajā nodaļā aplūkots darba strīdu jēdziens un…