Search results for "Note"

Client documents in social work with adults as research data : scoping review of opportunities and challenges

2022

Documentation is an integral part of social work. It is a tool in client work, and it also has an accountability perspective. Documentation helps the practitioners to evaluate their own work and makes it possible to assess the impact of work and develop practices. The use of client documents for research purposes has been identified as an option, but it is still quite rare. Moreover, little attention has been paid to social work with adults in this context. The development of electronic information systems (EIS), including structured forms, presents new research opportunities. Through documentation, it is possible to make tacit information visible and obtain evidence, for example, about the…

Syntheses, characterization and properties of Cu(II)-, Mo(VI)- and U(VI) complexes with diaminotetraphenolate ligands

2013

Microbial Fuel Cell with Ni–Co Cathode Powered with Yeast Wastewater

2018

Wastewater originating from the yeast industry is characterized by high concentration of pollutants that need to be reduced before the sludge can be applied, for instance, for fertilization of croplands. As a result of the special requirements associated with the characteristics of this production, huge amounts of wastewater are generated. A microbial fuel cell (MFC) forms a device that can apply wastewater as a fuel. MFC is capable of performing two functions at the same time: wastewater treatment and electricity production. The function of MFC is the production of electricity during bacterial digestion (wastewater treatment). This paper analyzes the possibility of applying yeast wastewate…

Cation Diffusion and Segregation at the Interface between Samarium-Doped Ceria and LSCF or LSFCu Cathodes Investigated with X-ray Microspectroscopy

2017

The chemical compatibility between electrolytes and electrodes is an extremely important aspect governing the overall impedance of solid-oxide cells. Because these devices work at elevated temperatures, they are especially prone to cation interdiffusion between the cell components, possibly resulting in secondary insulating phases. In this work, we applied X-ray microspectroscopy to study the interface between a samarium-doped ceria (SDC) electrolyte and lanthanum ferrite cathodes (La0.4Sr0.6Fe0.8Cu0.2O3(LSFCu); La0.9Sr0.1Fe0.85Co0.15O3(LSCF)), at a submicrometric level. This technique allows to combine the information about the diffusion profiles of cations on the scale of several micromet…

MICROBIAL FUEL CELL WITH Cu-B CATHODE POWERING WITH WASTEWATER FROM YEAST PRODUCTION

2017

With the increasing standard of living, energy consumption increases as well. So, waste production, including wastewater, increases as well. One of the types of waste-water is wastewater from yeast industry. Wastewater from this industry has not only a high pollutants load but it is produced in great amounts as well. Technical devices that can accomplish the wastewater treatment and electricity production from wastewater is a microbial fuel cell. In microbial fuel cells activated sludge bacteria can be used for electricity production during wastewater treatment. The possibility of using the Cu-B alloy as cathode catalyst for microbial fuel cells to wastewater treatment of wastewater from ye…

Wastewater treatment and electricity production in a microbial fuel cell with Cu–B alloy as the cathode

2019

The possibility of wastewater treatment and electricity production using a microbial fuel cell with Cu&ndash

Effectuation in an entrepreneurial creation setting : an action case study

2014

Entrepreneurial effectuation, a concept presented by Saras Sarasvathy (2001), is currently among the hot topics of entrepreneurship research and discussion. Being a relatively new concept, the research approaches and methodological choices have been relatively limited in number and focus. Furthermore, the small and medium-sized enterprise (SME) context, especially the small busi-nesses have not been addressed despite their apparent crucial role in new product and venture creation processes. This qualitative case study focuses on a single creation process of a potential new product in an entrepreneurial small business setting. Through the conven-tions of action research, the aim is to unders…

Uptake of actinides by calcium silicate hydrate (C-S-H) phases

2018

Abstract The sorption of actinides (Th, U – Am) was studied in dependence of the solid-to-liquid (S/L) ratio (0.5–20.0 g/L) and the calcium-to-silicon (C:S) ratio. The C:S ratio was varied between 1.80 and 0.70 to simulate the changing composition of the C-S-H phases during cement degradation from high to low C:S ratios. The decrease of the calcium content in the C-S-H phases by time is accompanied by a decrease in pH in the corresponding suspensions from 12.6 to 10.2. X-ray photoelectron spectroscopy (XPS) of the C-S-H phases showed an increasing depletion of Ca on the surface with increasing C:S ratio in comparison to the composition of the solid phase as a whole. The sorption experiments…

In situ transmission electron microscopy study of electron beam-induced transformations in colloidal cesium lead halide perovskite nanocrystals

2017

An increasing number of studies have recently reported the rapid degradation of hybrid and all-inorganic lead halide perovskite nanocrystals under electron beam irradiation in the transmission electron microscope, with the formation of nanometer size, high contrast particles. The nature of these nanoparticles and the involved transformations in the perovskite nanocrystals are still a matter of debate. Herein, we have studied the effects of high energy (80/200 keV) electron irradiation on colloidal cesium lead bromide (CsPbBr3) nanocrystals with different shapes and sizes, especially 3 nm thick nanosheets, a morphology that facilitated the analysis of the various ongoing processes. Our resul…

Ceļa seguma iezīmju noteikšana, izmantojot mašīnmācīšanos

2018

Pēdējos gados pastiprināta uzmanība tiek pievērsta datorredzes problēmām un konvolūciju neironu tīklu lomai problēmu risinājumos. Darba teorētiskajā daļā vispārīgi tiek apskatīta mākslīgo neironu uzbūve un vēsture, kā arī konvolūciju neironu tīklu uzbūve un jaunākie konvolūciju neironu tīklu modeļi, t.s. “reģionu” bāzētie: R-CNN, Fast R-CNN, Faster R-CNN, Mask R-CNN un “viena šāviena detektora” bāzētie: SSD un YOLO. Darbā tiek pētītas ceļu seguma iezīmes un to izmantošana neironu tīklu apmācīšanā, kā arī tiek sniegts neliels ieskats mašīnmācīšanās ietvaru izvēlē. Tiek apskatīti arī citi pētījumi, kas ir saistīti ar šo tēmu un alternatīvu risinājumu izveidi. Darba nobeigumā tiek aprakstīti s…