707 research outputs found

    Biomass heating options

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    Bakalářská práce je rozdělena na pět hlavních částí. V první části se zabývá rozdělením krbových kamen podle roštu, použitého výrobního materiálu, podle spalovacích vzduchů a přenosu tepla. Druhá část se zabývá normou ČSN EN 13 240. Následují oddíly pojednávající o měřícím úseku, použitých měřících přístrojích a zkušebním palivu. Poslední část se zabývá samotnými měřeními, vyhodnocováním výsledků a výpočtem účinnosti.This bachelor thesis is divided into five main parts. The first part divides stoves according to the type of grate, material, trasmission of heat and combustion of gasses. The second part deals with the ČSN EN 13 240 norm. The following parts discuss measurement points and the devices used for measuring and test fuel. The last part deals with the collected data, the results drawn from these data and the efficiency calculation.

    Application for Monitoring System Resources of OS Windows

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    Práce pojednává o koncepci monitorování prostředků v operačních systémech Microsoft Windows, poskytovaných nástrojích, používaných metodách a jejich programovacím rozhraní. Dále obsahuje popis návrhu a implementace vytvořeného nástroje pro monitorování prostředků. Není opomenuto ani testování a zhodnocení aplikace.This work deals with conception of monitoring system resources in Microsoft Windows operating systems, granted tools, used methods and it's programming interface. Next, it contains description of design and implementation own created tool for monitoring system resources. Description of testing and valuation of application also hasn't been forgotten.

    President Trump’s Payroll Tax Deferral and its Implications

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    This paper explores the general concept of payroll taxes and the wide-ranging effects of President Trump’s payroll tax deferral. This single executive action has impacted millions of people and may impact millions more in the years to come. To determine the payroll tax deferral’s effect on a wide variety of stakeholders, I used a mix of sources including but not limited to federal laws and regulations, professional practice guides written by practicing CPAs, and academic and mass media publications. Furthermore, I conducted interviews with practicing tax professionals to discern what impact the payroll tax deferral may have on long-term tax policy in the United States. The results of this qualitative research indicate that the payroll tax deferral has negative consequences for employees, employers, and the Social Security program. However, because this temporary change in tax policy was only recently enacted, the long-term effects of this deferral on American tax policy are still unknown

    Efficiency of Crystalline Laser Materials Based on Lanthanides

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    The Latest Generation of Intraocular Lenses, the Problem of the Eye Refraction after Cataract Surgery

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    Nowadays cataract surgery is refractive surgery as well. Intraocular lens implantation is gold standard, but there is plenty types of intraocular lenses, monofocal, multifocal, accommodating, and toric. Problem is to pick up correct one according life style, profession, health status and age. The aim is review current possibilities in cataract, refractive surgery and aphakia management

    The Latest Generation of Intraocular Lenses, the Problem of the Eye Refraction after Cataract Surgery

    Get PDF
    Nowadays cataract surgery is refractive surgery as well. Intraocular lens implantation is gold standard, but there is plenty types of intraocular lenses, monofocal, multifocal, accommodating, and toric. Problem is to pick up correct one according life style, profession, health status and age. The aim is review current possibilities in cataract, refractive surgery and aphakia management

    EXAMINATION OF THE VISUAL ACUITY ON THE LCD OPTOTYPE WITH WHOLE-LINE AND INTERPOLATION METHOD

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    The goal of this work is to show the possibility of us using the LCD optotype in common optometrist practice. Furthermore two commonly used methods for measuring visual acuity will be compared. 69 respondents were used for the measurements. The respondents were divided into two groups according to the measured LCD optotype. The visual acuity was measured using the whole-line method on modified Snellen charts as well as the interpolation method on ETDRS charts. Measurements were taken on the Sloan letters and on the Landolt rings. The charts for the before mentioned methods were selected according to everyday optometrist practice. The results show the test-retest variability (reliability) of given methods. By comparing the results the precision of a given method can by estimated. The results show that the two methods do not give the same resulting values of visual acuity. Measuring the visual acuity has great importance since it serves as a basis for following examinations for eye pathologies.ontact lenses usually serve for vision correction. Other possibilities of contact lenses use are in therapeutic as well as in diagnostic areas. Important factors for comfortable and safe use of contact lenses are correct application and correctly chosen type of contact lenses. However, a system of care plays also a very important role. The care does not include only the lens itself but also a contact lens case that is used to store contact lenses when they are not in use

    Intravitreal Bevacizumab with or Without Triamcinolone for Refractory Diabetic Macular Oedema

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    We evaluate the effect of intravitreal injections of Bevacizumab (IVB) alone or combined with triamcinolone (IVT) in the first injection for treatment of refractory diabetic macular oedema (DME). Sixty eyes of sixty patients with refractory DME were included. Half of the receive injections of IVB (1.25 mg/0.05 mL) or combined IVB and IVT (1.25 mg/0.05 mL and 2 mg/0.05 mL respectively). The primary outcome measure was change in central macular thickness (CMT). Secondary outcome measures were change in best-corrected logMAR visual acuity (BCVA) and incidence of potential adverse events. Central macular thickness was reduced significantly in both the IVB and IVB/IVT groups. At week 24, CMT change compared to the baseline was –95.7 mm (95% CI, –172.2 to –19.26) in the IVB group and –92.1 mm (95% CI, –154.4 to –29.7) in the IVB/IVT group. There was not a significant difference between the IVB and the IVB/IVT groups (p= 0.022). Improvement of BCVA was initiated at weeks 6 and 12 in the IVB/IVT and IVB groups respectively. In terms of BCVA change compared to the baseline at 24 weeks, the differences between the IVB and the IVB/IVT groups (p=0.006) were significant. Anterior Chamber reaction was noticed in six (20%) and six (20%) eyes respectively in the IVB and IVB/IVT groups the day after injection, and it resolved with no sequel. Elevation of IOP occurred in two eyes (6%) in the IVB/ IVT group. Intravitreal injections of Bevacizumab had a beneficial effect on refractory DME in terms of CMT reduction and BCVA improvement. Addition of triamcinolone in the injection seemed to induce earlier visual improvement; however, it did not show any significant additive effect later during follow-up

    Intravitreal Bevacizumab with or Without Triamcinolone for Refractory Diabetic Macular Oedema

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    We evaluate the effect of intravitreal injections of Bevacizumab (IVB) alone or combined with triamcinolone (IVT) in the first injection for treatment of refractory diabetic macular oedema (DME). Sixty eyes of sixty patients with refractory DME were included. Half of the receive injections of IVB (1.25 mg/0.05 mL) or combined IVB and IVT (1.25 mg/0.05 mL and 2 mg/0.05 mL respectively). The primary outcome measure was change in central macular thickness (CMT). Secondary outcome measures were change in best-corrected logMAR visual acuity (BCVA) and incidence of potential adverse events. Central macular thickness was reduced significantly in both the IVB and IVB/IVT groups. At week 24, CMT change compared to the baseline was –95.7 mm (95% CI, –172.2 to –19.26) in the IVB group and –92.1 mm (95% CI, –154.4 to –29.7) in the IVB/IVT group. There was not a significant difference between the IVB and the IVB/IVT groups (p= 0.022). Improvement of BCVA was initiated at weeks 6 and 12 in the IVB/IVT and IVB groups respectively. In terms of BCVA change compared to the baseline at 24 weeks, the differences between the IVB and the IVB/IVT groups (p=0.006) were significant. Anterior Chamber reaction was noticed in six (20%) and six (20%) eyes respectively in the IVB and IVB/IVT groups the day after injection, and it resolved with no sequel. Elevation of IOP occurred in two eyes (6%) in the IVB/ IVT group. Intravitreal injections of Bevacizumab had a beneficial effect on refractory DME in terms of CMT reduction and BCVA improvement. Addition of triamcinolone in the injection seemed to induce earlier visual improvement; however, it did not show any significant additive effect later during follow-up
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