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17812. Zúžená optická vlákna

Creator:
Martan, Tomáš
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
precision mechanics, přesná mechanika, jednovidové optické vlákno, mikrostrukturní optické vlákno, zúžené optické vlákno, evanescentní vlna, and detekce analytu
Language:
Czech
Description:
The paper deals with tapered optical fibres, their preparation and applications for sensing. Enhancement of evanescent wave overlap with an analyte is possible to achieve by tapering telecommunication fibres or steering-wheel microstructured optical fibres. It leads to increasing of sensitivity of detection in comparison to untapered fibre structure. Tapered optical fibre with immobilized optical-chemical transducer on the tip was used as a probe for local pH detection. Tapered single-mode or microstructured optical fibres were successfully prepared by a PC-controlled fibre puller of the own construction. and Článek se zabývá zúženými optickými vlákny, jejich přípravou a využitím pro senzorové aplikace. Zúžením telekomunikačních vláken nebo mikrostrukturních vláken s velkými plášťovými otvory lze dosáhnout většího překryvu evanescentní vlny s analytem, čímž se zvýší citlivost detekce ve srovnání s nezúženou strukturou. Zalomené zúžené optické vlákno s imobilizovaným opticko-chemickým převodníkem na špičce bylo využito jako optická vláknová sonda pro měření pH. Příprava navržených zúžených jednovidových nebo mikrostrukturních optických vláken byla realizována na počítačem řízeném zařízení vlastní konstrukce.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

17814. Zvířecí kosti a kostry z raně středověkého sídliště v Brně-Medlánkách

Creator:
Dreslerová, Gabriela
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
archaeozoology, Early Middle Ages (8th-9th century), rural settlement, and animal burials
Language:
Czech
Description:
The subject of the presented article is the processing of archaeozoological finds from the Early Middle Age settlement in Brno-Medlánky. This relatively small set consists of two different groups of osteological material. The first represents fragments of bones and teeth coming from the so-called kitchen waste. This set was processed by standard methods consisting in determining the anatomical affiliation, species, age, or sex, and the evidence of traces of manipulation (cutting, chopping, biting). The second group of finds representing several complete skeletons of animals is quite significant, as some of the animals were not consumed. Within the three features, 3 canine (2× a dog, 1× a wolf?), a horse and a pig skeleton in the secondary position were captured. Even in these cases, the basic characteristics of the animals were recorded, including age, sex, height, and post-mortem manipulation. The presence of preserved animal bodies from the settlement in Medlánky was compared with other documented finds of skeletons of animals from this period.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

17817. Zvláštní raně středověké hroby objevené ve Starém Městě - "Na Valách" a problém jejich interpretace

Creator:
Fojtová, Martina and Galuška, Luděk
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Early Middle Ages, Great Moravia, Staré Město, atypical burials, grave goods, taphonomy, and bioarchaeology
Language:
Czech
Description:
In 2018, during a rescue archaeological excavation taking place in one of the gardens of Staré Město near Uherské Hradiště, 23 early medieval graves containing skeletal remains of 26 individuals were detected. The site is situated on the northern border of the well-known Great Moravian burial ground ‘Na Valách’. In a large number of the newly excavated graves, greater or lesser deviations from the usual funeral rite were recorded. While the established burial rite in Great Moravian society means the deceased lies on their back in the supine position with extended extremities and head towards the west, here we found skeletons in very different orientations, lying in a prone or crouched position, or, at least, with unusual positions of their upper or lower limbs. Additionally, some of the graves contained incomplete or no skeletons. There is also one double burial and a triple burial, and several graves in superpositions. In nine graves, objects of material culture were found, the most important of them come from the rider’s grave 20/2018. The presented study aims to interpret the burial contexts using the bioarchaeological approach, which is, however, affected by the quality of the preserved finds, especially skeletal remains.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

17818. Zvonky i stonky: povídky pro mládež

Creator:
Antonín Svoboda
Publisher:
M. Knapp
Format:
print, text, regular print, bez média, svazek, and 82 stran, 2 nečíslované listy obrazových příloh : ilustrace ; 17 cm
Type:
model:monograph and TEXT
Subject:
Česká próza, Literatura pro děti a mládež (beletrie), 821.162.3-32, 821-93, (0:82-32), 25, 26, and 821.162.3-3
Language:
Czech
Description:
napsal Ant. Svoboda, Rok vydání z bibliografického katalogu 19. stol., and Se 2 vyobrazeními
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

17819. Zvýšení bojových schopností vojáka a malých jednotek

Creator:
Sedlák, Josef and Zbořil, Ivo
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
soldierse, technology, defence of territory, armáda, vojáci, technilogie, and obrana území
Language:
Czech
Description:
Nedávno jsme v tomto časopise (JMO 4/2009) v článku nazvaném''Před pořízením systému vojáka pro AČR'', popsali náš názor na projekt tzv. systému vojáka, v AČR tehdy pojmenovaný jako ''Voják 21.století''. Nyní je tento projekt veden v Armádě České republiky (AČR) pod názvem modulární bojový komplet (MBK). I náš pohled doznal za uplynulé dva roky určitého posunu, který se odrazil i v návrhu řešení, jež označujeme zkratkou BIG-OŠ, tedy Battlefield Integrated Groups - organizace a školení. Kombinací anglického a českého názvu chceme vyjádřit jak naše národní specifikace a požadavky, tak i skutečnost, že je tento systém připraven na použití v rámci vojenských struktur NATO. Tomuto přístupu odpovídá i systémové složení kompletu, jež vhodně kombinuje národní a alianční prvky a technologie. Tento přístup zde chceme stručně představit. and Recently we described in the JMO journal article, called ''Before acquisition of the soldier system for the Czech Army'', our estimation of so-called the soldier system project, in the Czech Army known like ''Soldier 21st century''. Nowadays, this project is registered under the designation Modular Combat Set (MBK) in the Czech Army. Our view has reached certain shift for last two years and that reflected the proposal of solution, which we have marked like BIG-OŠ - Battlefield Integrated Groups - the organization and training. By the combination English and Czech appellation we want to expresses both our national specification and requirements and the fact that this system is ready for use within the scope of the NATO military configuration. The attitude corresponds to the systematic structure of the set, which combines appropriately not only the national and alliance factors but also the technologies. We would like to introduce the above mentioned attitude briefly in the following text.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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