444 resultados para Feoktistov, Aleksandr: Moksamordvan murteet
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Disbound Original Held in Oak Street Library Facility
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In Cyrillic characters.
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Mode of access: Internet.
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Photocopy.
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Mode of access: Internet.
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Includes bibliographical references.
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Includes bibliographical references.
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Mode of access: Internet.
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Fino ai primi anni Novanta, la storia del Gulag ha vissuto quasi esclusivamente nella memoria dei sopravvissuti ed è solo dopo l’apertura dei vecchi archivi sovietici che si è iniziato a riflettere su una delle pagine più tragiche della storia russa e non solo. La raccolta e lo studio di materiali documentaristici provenienti da archivi statali e familiari hanno permesso di ricostruire lo sviluppo di uno degli strumenti più emblematici del terrore sovietico, nonché di studiarne il forte impatto sulla vita delle persone. In questo ambito, una risorsa di particolare rilievo sono le lettere dei detenuti, da cui è possibile ricavare informazioni concrete e attendibili sul sistema punitivo sovietico e il suo effetto sulla psiche umana. Lo scopo di questo elaborato è quello di illustrare e approfondire il fenomeno della corrispondenza epistolare nel mondo concentrazionario, facendo riferimento in particolare al valore delle lettere come tipologia specifica di fonte sul Gulag e fornendo, infine, una proposta di traduzione inedita in italiano di due lettere scritte da un pastore luterano durante gli anni di reclusione in diversi lager siberiani.
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Formaldehyde (CH2O), the most simple and reactive aldehyde, is a colorless, reactive and readily polymerizing gas at room temperature (National Toxicology Program [NTP]. It has a pungent suffocating odor that is recognized by most human subjects at concentrations below 1 ppm. Aleksandr Butlerov synthesized the chemical in 1859, but it was August Wilhelm von Hofmann who identified it as the product formed from passing methanol and air over a heated platinum spiral in 1867. This method is still the basis for the industrial production of formaldehyde today, in which methanol is oxidized using a metal catalyst. By the early 20th century, with the explosion of knowledge in chemistry and physics, coupled with demands for more innovative synthetic products, the scene was set for the birth of a new material–plastics. According to the Report on Carcinogens, formaldehyde ranks 25th in the overall U.S. chemical production, with more than 5 million tons produced each year. Formaldehyde annual production rises up to 21 million tons worldwide and it has increased in China with 7.5 million tons produced in 2007. Given its economic importance and widespread use, many people are exposed to formaldehyde environmentally and/or occupationally. Commercially, formaldehyde is manufactured as an aqueous solution called formalin, usually containing 37% by weight of dissolved formaldehyde. This chemical is present in all regions of the atmosphere arising from the oxidation of biogenic and anthropogenic hydrocarbons. Formaldehyde concentration levels range typically from 2 to 45 ppbV (parts per billion in a given volume) in urban settings that are mainly governed by primary emissions and secondary formation.
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This paper devotes to evaluation of performance bottlenecks and algorithm deficiencies in the area of contemporary reliable multicast networking. Hereby, the impact of packet delay jitter on the end-to-end performance of multicast IP data transport is investigated. A series of tests with two most significant open-source implementations of reliable multicast is performed and analyzed. These are: UDP-based File Transfer Protocol (UFTP) and NACK-oriented Reliable multicast (NORM). Tests were targeted to simulate scenario of content distribution in WAN – sized Content Delivery Networks (CDN). Then, results were grouped and averaged, by round trip time and packet losses. This enabled us to see jitter influence independently on round trip time(RTT) and packet loss rates. Revealed jitter influence for different network conditions. Confirmed, that appearance of even small jitter causes significant data rate reduction.
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Magdeburg, Univ., Fak. für Maschinenbau, Diss., 2013
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In microeconomic analysis functions with diminishing returns to scale (DRS) have frequently been employed. Various properties of increasing quasiconcave aggregator functions with DRS are derived. Furthermore duality in the classical sense as well as of a new type is studied for such aggregator functions in production and consumer theory. In particular representation theorems for direct and indirect aggregator functions are obtained. These involve only small sets of generator functions. The study is carried out in the contemporary framework of abstract convexity and abstract concavity.
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"Vegeu el resum a l'inici del document del fitxer adjunt."