Tesla coil proposition for HV spark gap source

Tato bakalářská práce se zabývá základním seznámením s Nikolou Teslou a s jeho vynálezem Teslova transformátoru a jeho využití v elektrochemické praxi. Práce je rozdělená do čtyř částí. V úvodní části je stručně shrnut život elektrotechnika Nikoly Tesly a rozebrána problematika Teslova transformátoru. Druhá část je zaměřena na možné druhy a buzení Teslova transformátoru, výběr nejvhodnější varianty pro návrh základních komponent polovodičově buzeného teslova transformátoru pro VN jiskrový zdroj. Ve třetí části je popsán návrh budícího obvodu a desky plošných spojů. Dále je zde popsána výroba jednotlivých komponent a jejich základní technická dokumentace. V poslední, čtvrté části je popsáno oživení, měření a odzkoušení funkčního vzorku.Tato bakalářská práce se zabývá základním seznámením s Nikolou Teslou a s jeho vynálezem Teslova transformátoru a jeho využití v elektrochemické praxi. Práce je rozdělená do čtyř částí. V úvodní části je stručně shrnut život elektrotechnika Nikoly Tesly a rozebrána problematika Teslova transformátoru. Druhá část je zaměřena na možné druhy a buzení Teslova transformátoru, výběr nejvhodnější varianty pro návrh základních komponent polovodičově buzeného teslova transformátoru pro VN jiskrový zdroj. Ve třetí části je popsán návrh budícího obvodu a desky plošných spojů. Dále je zde popsána výroba jednotlivých komponent a jejich základní technická dokumentace. V poslední, čtvrté části je popsáno oživení, měření a odzkoušení funkčního vzorku.

Działalność wydawnictw pedagogicznych w Kielcach w latach 1955−2012 na przykładzie Wydawnictwa Pedagogicznego ZNP w Kielcach i Wydawnictwa MAC

Udostępnienie publikacji Wydawnictwa Uniwersytetu Łódzkiego finansowane w ramach projektu „Doskonałość naukowa kluczem do doskonałości kształcenia”. Projekt realizowany jest ze środków Europejskiego Funduszu Społecznego w ramach Programu Operacyjnego Wiedza Edukacja Rozwój; nr umowy: POWER.03.05.00-00-Z092/17-00

Social Media Marketing

Red. nauk. Wydziału Organizacji i Zarządzania: Lewandowski, Jerzy.Globalizacja rynków oraz dynamiczny rozwój technologii informacyjno komunikacyjnych sprawiają, że przedsiębiorstwa muszą systematycznie dostosowywać się do nowych warunków działania. W konsekwencji w warunkach współczesnego rynku, nowe media stały się istotnym obszarem działalności marketingowej przedsiębiorstw. Internet jest obecnie kluczowym kanałem komunikacyjnym, przez co stanowi wyzwanie dla menadżerów. Regularnie zwiększa się liczba abonentów, użytkowników, reklamodawców i firm docierających do klientów drogą elektroniczną, co sprawia, że Internet umożliwia skuteczną promocję przedsiębiorstw. Budowanie i umacnianie relacji z konsumentami – będące stałym elementem budowania przewagi konkurencyjnej na rynku – jest w dzisiejszych czasach możliwe między innymi dzięki możliwości współtworzenia wartości dodanej dla konsumenta w ramach działań szeroko pojętego marketingu społecznościowego, zwanego także social media marketing.Social media marketing is a rapidly growing form of virtual marketing and can be classified in context of Web 2.0. philosophy based on a specific, twoway form of communication carried out via social media. As a result, users of social media are not only customers, but also full-fledged creators of the published content and active participants of the marketing communications activities. The main objective of this work is to present a comprehensive concept of social media marketing and its critical analysis, with particular emphasis on the importance of social media in brand management, virtual communities creation and brand promotion

Locus coeruleus to basolateral amygdala noradrenergic projections promote anxiety-like behavior

Increased tonic activity of locus coeruleus noradrenergic (LC-NE) neurons induces anxiety-like and aversive behavior. While some information is known about the afferent circuitry that endogenously drives this neural activity and behavior, the downstream receptors and anatomical projections that mediate these acute risk aversive behavioral states via the LC-NE system remain unresolved. Here we use a combination of retrograde tracing, fast-scan cyclic voltammetry, electrophysiology, and in vivo optogenetics with localized pharmacology to identify neural substrates downstream of increased tonic LC-NE activity in mice. We demonstrate that photostimulation of LC-NE fibers in the BLA evokes norepinephrine release in the basolateral amygdala (BLA), alters BLA neuronal activity, conditions aversion, and increases anxiety-like behavior. Additionally, we report that β-adrenergic receptors mediate the anxiety-like phenotype of increased NE release in the BLA. These studies begin to illustrate how the complex efferent system of the LC-NE system selectively mediates behavior through distinct receptor and projection-selective mechanisms

Dzieci sieci 2.0

S\u142owa kluczowe: kompetencje komunikacyjne m\u142odzie\u17cy, edukacja medialna - gimnazjum, szkolne programy nauczania, netnografia, internet a uczniowie gimnazj\uf3

Essays on Interpersonal Trust and Trustworthiness Detection

The first part of this dissertation focuses on potential foreign language effects on trust. Research shows that the use of a foreign language may alter people’s choices. Thus, interpersonal trust could also be susceptible to such effects. However, although the use of foreign language influenced choices in moral dilemmas, we did not find foreign language effects on trust or trustworthiness decisions. These findings are in line with the idea that interpersonal trust is principled. The second part of this dissertation focuses on trust accuracy. Judgments about people’s trustworthiness are made frequently and have important real-life consequences. However, the accuracy of these judgments is debated. I therefore systematically reviewed the current evidence for accurate trustworthiness detection. The overall evidence for accuracy was mixed; while the evidence for accurate trustworthiness detection from neutral photographs was limited, trustworthiness detection appeared to be more accurate when the rater and target interacted, when the target presentation resembled face-to-face contact, and when the target presentations contained cues or signals about the target’s trustworthiness. The third part of this dissertation empirically investigated trustworthiness detection accuracy. Results indicated that trustors’ specific trustworthiness detection was inaccurate when the participants had only limited time to get acquainted (Study 1) but was accurate when the participants were acquainted (Studies 2–4). Moreover, this accuracy was mediated by the simple heuristic “do I have a good relationship with this person?” (Studies 3–4). Importantly, while trustors accurately detected whether a trustee would be trustworthy toward them, they failed to detect whether a trustee would be trustworthy in general (Studies 3–4). Thus, rather than asking whether people know who is generally trustworthy, the more relevant question to ask is whether people know whom they can personally trust

The Effect of Antioxidant Addition on Lightfastness of Color Ink Jet Printing

Fluorescent office lighting has been shown to fade ink jet colors. Fading of ink jet dyes is a problem when the shelf life of documents is important. For effective, low cost ink jet printing, the color quality of the printed paper must be maintained for a duration of time. Research in hot melt adhesives has shown a reduction of color loss associated with the use of antioxidants. During this thesis, a coating formulation was tested with and without an antioxidant present. The antioxidants tested were alpha tocopherol I vitamin E, and sodium thiosulfate. The addition rate was varied at 2.65 % and 5.17 % to determine which addition rate was required to produce the best color fastness. Coated paper samples were printed with a color test pattern utilizing the primary colors: red, yellow, blue and black .. The paper samples, printed with the test pattern, were analyzed with the brightimeter to determine their initial color values (L, a, b) and brightness. The samples were aged using an accelerated aging device, the fade-ometer, to test the ability of the antioxidants to resist fading under fluorescence. It has been determined that the duration of 12 hours of 500 W/m2 is equivalent to one month of sunlight in Michigan in the month of June. The fade-ometer times were chosen to be 12, 24 and 36 hours of exposure representative of 1, 2 and 3 months of normal exposure. The L, a, b values of the samples were measured after each aging period. To determine the ability of the antioxidant to reduce color loss, all brightimeter values of each antioxidant coating were compared against all brightimeter values of the non-antioxidant coating. Both the basesheet and the coated sheets, after aging, were tested for brightness, and color difference (L, a, and b ). The results were compared to determine the surface effects of the coating on the substrate during time. Also, the results were compared to determine which antioxidant level minimizes color loss. The importance of this project was to determine the extent of color loss that is prevented by the use of antioxidants. Color ink jet printing must have the ability to resist color loss for a duration of time. Color fastness of the paper is important and should be maintained for a duration of time. Improved color fastness was shown to exist in paper samples coated with a low level of antioxidant. Both antioxidants, vitamin E and sodium thiosulfate, decreased the color loss associated with accelerated aging conditions in the fade-ometer