Information System Selection

Tato diplomová práce se zabývá výběrem vhodného informačního systému pro středně velkou strojírenskou společnosti v České republice. Rozhodnutí implementovat ERP systém je velkým krokem a účelem této práce je proto udělat nejkvalitnější možné doporučení jak postupovat. Vlastním řešením této práce je nejvhodnější systém pro danou společnost s ekonomickým zhodnocením a přínosy této varianty.This master’s thesis deals with selection of optimal information system for medium sized engineering company. Decision to implement a new ERP system is a big step forvard and the main target of this thesis is to make the best possible recommendation how to proceed in this task. Main solution is a new ERP system for this company with economic evaluation and important benefits of this system.

Wireless Fidelity Networks

V bakalářské práci se zabývám tématikou bezdrátových sítí. Toto téma zahrnuje veškeré informace týkající se základních termínů používaných při Wi-Fi problematikách, rozvedení otázky zabezpečení sítě, návrh řešení komplikací při tvorbě takové sítě. Podívám se na možné nasazení bezdrátové technologie v podnicích a také nastíním vznik možných rizik. Pokusím se navrhnout a zvolit optimální politiku užívání bezdrátové sítě.In the bachelor’s thesis I solve the problems of wireless networks. This theme includes all information about the main terms in wireless networks, amplification of questions about network security and proposal of solution with complications in creation of this network. I will take a look on usage of wireless technology in a company network, to see possible risk origins. I will try to propose and choose optimal usage policy of wireless network.

The role of leading-edge serrations in controlling the flow over owls’ wing

We studied the effects of leading-edge serrations on the flow dynamics developed over an owl wing model. Owls are predatory birds. Most owl species are nocturnal, with some active during the day. The nocturnal ones feature stealth capabilities that are partially attributed to their wing microfeatures. One of these microfeatures is small rigid combs (i.e. serrations) aligned at an angle with respect to the incoming flow located at the wings\u27 leading-edge region of the primaries. These serrations are essentially passive flow control devices that enhance some of the owls\u27 flight characteristics, such as aeroacoustics and, potentially, aerodynamics. We performed a comparative study between serrated and non-serrated owl wing models and investigated how the boundary layer over these wings changes in the presence of serrations over a range of angles of attack. Using particle image velocimetry, we measured the mean and turbulent flow characteristics and analyzed the flow patterns within the boundary layer region. Our experimental study suggests that leading-edge serrations modify the boundary layer over the wing at all angles of attack, but not in a similar manner. At low angles of attack ( \u3c 20° ), the serrations amplified the turbulence activity over the wing planform without causing any significant change in the mean flow. At 20° angle of attack, the serrations act to suppress existing turbulence conditions, presumably by causing an earlier separation closer to the leading-edge region, thus enabling the flow to reattach prior to shedding downstream into the wake. Following the pressure Hessian equation, turbulence suppression reduces the pressure fluctuations gradients. This reduction over the wing would weaken, to some extent, the scattering of aerodynamic noise in the near wake region. This article was published as Open Access through the CCU Libraries Open Access Publishing Fund. The article was first published in the journal Bioinspiration & Biomimetics: https://doi.org/10.1088/1748-3190/acf54

Tele-education model for primary care providers to advance diabetes equity: Findings from Project ECHO Diabetes

IntroductionIn the US, many individuals with diabetes do not have consistent access to endocrinologists and therefore rely on primary care providers (PCPs) for their diabetes management. Project ECHO (Extension for Community Healthcare Outcomes) Diabetes, a tele-education model, was developed to empower PCPs to independently manage diabetes, including education on diabetes technology initiation and use, to bridge disparities in diabetes.MethodsPCPs (n=116) who participated in Project ECHO Diabetes and completed pre- and post-intervention surveys were included in this analysis. The survey was administered in California and Florida to participating PCPs via REDCap and paper surveys. This survey aimed to evaluate practice demographics, protocols with adult and pediatric T1D management, challenges, resources, and provider knowledge and confidence in diabetes management. Differences and statistical significance in pre- and post-intervention responses were evaluated via McNemar’s tests.ResultsPCPs reported improvement in all domains of diabetes education and management. From baseline, PCPs reported improvement in their confidence to serve as the T1D provider for their community (pre vs post: 43.8% vs 68.8%, p=0.005), manage insulin therapy (pre vs post: 62.8% vs 84.3%, p=0.002), and identify symptoms of diabetes distress (pre vs post: 62.8% vs 84.3%, p=0.002) post-intervention. Compared to pre-intervention, providers reported significant improvement in their confidence in all aspects of diabetes technology including prescribing technology (41.2% vs 68.6%, p=0.001), managing insulin pumps (41.2% vs 68.6%, p=0.001) and hybrid closed loop (10.2% vs 26.5%, p=0.033), and interpreting sensor data (41.2% vs 68.6%, p=0.001) post-intervention.DiscussionPCPs who participated in Project ECHO Diabetes reported increased confidence in diabetes management, with notable improvement in their ability to prescribe, manage, and troubleshoot diabetes technology. These data support the use of tele-education of PCPs to increase confidence in diabetes technology management as a feasible strategy to advance equity in diabetes management and outcomes

Compactness of Hardy-type integral operators in weighted Banach function spaces

We consider a generalized Hardy operator $Tf(x) = ϕ(x) ʃ_{0}^{x} ψfv$. For T to be bounded from a weighted Banach function space (X,v) into another, (Y,w), it is always necessary that the Muckenhoupt-type condition $ℬ = sup_{R>0} ∥ϕχ_{(R,∞)}∥_{Y}∥ψχ_{(0,R)}∥_{X'} < ∞$ be satisfied. We say that (X,Y) belongs to the category M(T) if this Muckenhoupt condition is also sufficient. We prove a general criterion for compactness of T from X to Y when (X,Y) ∈ M(T) and give an estimate for the distance of T from the finite rank operators. We apply the results to Lorentz spaces and characterize pairs of Lorentz spaces which fall into M (T)

Double exponential integrability, Bessel potentials and embedding theorems

This paper is a continuation of [5] and provides necessary and sufficient conditions for double exponential integrability of the Bessel potential of functions from suitable (generalized) Lorentz-Zygmund spaces. These results are used to establish embedding theorems for Bessel potential spaces which extend Trudinger's result