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Wyszukujesz frazę "Kozłowski, Piotr." wg kryterium: Autor


Tytuł:
Safeguarding Primacy: Redefining the American Global Leadership during Barack Obama’s Presidency
Autorzy:
Kozłowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/531327.pdf
Data publikacji:
2015-09-15
Wydawca:
Fundacja Instytut Nauki o Polityce
Tematy:
Asia pivot, Barack Obama, global leadership, role conceptions, USA
Opis:
The purpose of this article is to outline a twofold change in the American global leadership concept that has been taking place under the Obama Administration: the redefinition of its purpose and of its character. The purpose-transformation has been illustrated in a case study of the American “pivot to Asia”. It means, basically, that the American world leadership, defined as the political and economic order developed by the USA, and grounded in its power and unique position after the Second World War (and/or the Cold War), has turned during Obama’s administration into a instrument aiming at retaining the American privileged position that does not emanate directly from the U.S. power anymore. The charactertransformation implies that the role conceptions of the American world leadership, have been modified or, as in one case, abandoned, in order to adjust to new circumstances. As a result, the US leadership has become more inclusive, international-institutions-centered, and reluctant to military engagement.
Źródło:
Polish Journal of Political Science; 2015, 1, 3; 6-35
2391-3991
Pojawia się w:
Polish Journal of Political Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of acoustic banners depending on their arrangement in the concert hall - case study
Autorzy:
Kozłowski, Piotr Z.
Powiązania:
https://bibliotekanauki.pl/articles/127916.pdf
Data publikacji:
2019
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
room acoustics
adjusting room acoustics
acoustic banners
multipurpose venues
akustyka pomieszczenia
korygowanie akustyki pomieszczenia
panel akustyczny
sala koncertowa
Opis:
One of the most frequently used methods of adjusting the room acoustics of concert halls is the temporary introduction of additional acoustic absorption in the form of acoustic banners. Banners are implemented in the form of fabric surfaces placed vertically or horizontally along the walls of concert halls. In practice, one or two layers of heavyweight fabrics are used, characterized by a high value of the sound absorption coefficient. Simplified methods of designing acoustic banners assume estimating the effectiveness of adjusting the reverberation time on the basis of the static theory. The paper presents the results of measuring the effectiveness of acoustic banners carried out in the concert hall. The possibility of tuning the interior acoustics was verified depending on the position of the banner in the room as well as the degree of its opening.
Źródło:
Vibrations in Physical Systems; 2019, 30, 1; 1-8
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The acoustic climate of spaces located under overpasses in the context of adapting them for outdoor public events – a pilot case study
Autorzy:
Komarzyńska-Świeściak, Elżbieta
Kozlowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1955932.pdf
Data publikacji:
2021
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
architectural and acoustical design
public space
bridge underspace
environmental acoustics
urban acoustics
Opis:
Due to the current shortage of traditional public space because of its privatization, commercialization, and securitization, there is an urgent need to reclaim areas affected by motorized traffic in the urbanized areas. On the other hand, the process of adapting them for new purposes should be carefully carried out, addressing several issues, among them environmental acoustics. This study is meant to contribute to our understanding of acoustic conditions of a general model of the bridge underspace. Therefore, the aim of the research was to examine the existing acoustic climate by measuring noise levels and comparing them with equivalent acceptable noise levels for the expected type of space development and Noise Rating curves. In this research, a pilot case study approach was used, as measurements were taken for a chosen space located under an elevated road that represents certain criteria set by the researchers. The results allowed us to: (1) verify the relationship between the geometry of the bridge underspace and the noise levels, (2) assess the initial acoustic conditions in terms of possibilities of acoustic adaptation of the examined space for outdoor public events, and (3) formulate hypotheses and preliminary assumptions for the planned further and broader studies of the issues raised in this article. The presented results and their analysis show that it is possible to bring the acoustic conditions in the studied space to the state required for public or cultural meeting spaces. In comparison with earlier findings, the research undertaken appears to be pioneering and the results can be used as valuable input for further research on this topic.
Źródło:
Budownictwo i Architektura; 2021, 20, 4; 63-92
1899-0665
Pojawia się w:
Budownictwo i Architektura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression characteristics of triplet repeat-containing RNAs and triplet repeat-interacting proteins in human tissues
Autorzy:
Jasinska, Anna
Kozlowski, Piotr
Krzyzosiak, Wlodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/1040767.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
CUG-containing transcripts
RNA pathogenesis
CAG-containing transcripts
EST
Opis:
Numerous human transcripts contain tandem repeats of trinucleotide motifs, the function of which remains unknown. In this study we used the available gene expression EST data to characterize the abundance of a large group of these transcripts in different tissues and determine the mRNAs which had the highest contribution to the observed levels of transcripts containing different types of the CNG repeats. A more extensive characteristics was performed for transcripts containing the CUG repeats, and those encoding the repeat-binding proteins. The scarcity of double-stranded CUG repeats as well as various proportions of the single-stranded and double-stranded CUG repeat-binding proteins were revealed in the studied transcriptomes. The observed correlated levels of transcripts containing single-stranded CUG repeats and of proteins binding single-stranded CUG repeats may imply that in addition to transcripts which only provide binding sites for these proteins there may be a substantial portion of the transcripts whose metabolism is directly regulated by such proteins. Our results showing a highly variable composition of triplet repeat-containing transcripts and their interacting proteins in different tissues may contribute to a better understanding of the mechanism of RNA-mediated pathogenesis in triplet repeat expansion diseases.
Źródło:
Acta Biochimica Polonica; 2008, 55, 1; 1-8
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ras protein of the slime mold Physarum polycephalum is farnesylated in vitro
Autorzy:
Talarczyk, Elżbieta
Hung, Vo
Kozlowski, Piotr
Trzcinska-Danielewicz, Joanna
Świeżewska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/1044490.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Biochemiczne
Źródło:
Acta Biochimica Polonica; 1999, 46, 3; 771-775
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the maintenance system readiness using the semi-Markov model taking into account hidden factors
Autorzy:
Kozłowski, Edward
Borucka, Anna
Oleszczuk, Piotr
Jałowiec, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/27322964.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
maintenance
semi-Markov model
hidden factors
system readiness
Opis:
Modelling the time that the system remains in a given state using classical distributions is not always possible. In many cases, empirical distributions are multimodal due to the influence of external, hidden factors and the selection of the best classical distributions may lead to erroneous results. In the article the method of diagnosis of influence of hidden factors into sojourn time of semi-Markov models was presented. In order to capture hidden factors, the authors proposed to model the distributions of the sojourn time with a mixture of distributions, which is a significant novelty in relation to the studies presented in the literature. Hidden factors directly affect the reliability of technical systems. Detecting the existence of these factors enables more accurate modeling of system readiness. Paying attention to irregularities caused by hidden factors makes it possible to reduce system maintenance costs. Such a system model providescomplete information and enables a reliable assessment of the system readiness and maintenance.
Źródło:
Eksploatacja i Niezawodność; 2023, 25, 4; art. no. 172857
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coexistence of algae and a graptolite-like problematicum: a case study from the late Silurian of Podolia (Ukraine)
Autorzy:
Skompski, Stanisław
Kozłowski, Wojciech
Łuczyński, Piotr
Kozłowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/27323966.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Dasycladales
Graptolite-like epibionts
Silurian
Ludlow
Ukraine
periti dal environment
glony
graptolity
epibionty
sylur
ludlow
Ukraina
Opis:
This contribution presents the record of an abundant assemblage of well-preserved, thallophytic noncalcified algae and of an epibiotic form that has been recognised as a putative graptolite from the upper Silurian (Ludlow, Gorstian–Ludfordian) of Podolia (western part of Ukraine). The sediments represent a shallow peritidal zone of the shelf. A new genus and species, Voronocladus dryganti, belonging to the Dasycladales Pascher, 1931, is established. Most of the specimens representing the algal thallus are overgrown by problematical epibiotic graptolites, described as Podoliagraptus algaeoides gen. et sp. nov. This phenomenon is explained as an epiphytic mode of life of the putative graptolite on algae, and is herein compared to recently known coexistences of algae with other organisms. The excellent state of preservation, and the abundance of studied Dasycladales algae and epibiotic problematics indicate that the investigated mudstone layer can be treated as a ‘Konservat Lagerstätte’ sensu Seilacher (1970).
Źródło:
Acta Geologica Polonica; 2023, 73, 2; 115--133
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polish farmers’ perception of the safety, ergonomics and sozology of tractors
Postrzeganie bezpieczeństwa, ergonomii i sozologii ciągników przez polskich rolników
Autorzy:
Durczak, Karol
Jurek, Piotr
Kozłowski, Radosław Jan
Ekielski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/334929.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
ergonomics
safety
quality
farm tractors
IFOP system
ergonomia
BHP
jakość
ciągnik rolniczy
system NBOR
Opis:
The second edition of the Independent Farmers' Opinion Poll (IFOP 2018) resulted in a database of 600 subjective and reliable opinions used for the analysis of the ergonomics and safety of farm tractors. The poll was conducted in all regions of Poland and resulted in Polish farmers’ opinions of several dozen parameters of tractors, which are basic machines on each farm. John Deere won the second edition of the Independent Farmers' Opinion Poll as users of these tractors considered them the most ergonomic and safest during long-term operation. Like in the first edition (650 questionnaires), the users were the most critical about the insufficient number of compartments in the tractor cab.
Po zakończeniu II edycji Niezależnego Badania Opinii Rolników (NBOR 2018) otrzymano bazę 600 subiektywnych i rzetelnych opinii do analizy o ergonomii i bezpieczeństwie w użytkowaniu ciągników rolniczych. Badanie swym zasięgiem objęło cały kraj i pozwoliło poznać opinie polskich rolników o kilkudziesięciu parametrach podstawowej maszyny w każdym gospodarstwie. Zwycięzcą II edycji według użytkowników zostały ciągniki firmy John Deere, które uznano za najbardziej ergonomiczne i bezpieczne podczas wieloletniej eksploatacji. Podobnie jak w I edycji (650 ankiet) użytkownicy najwięcej zastrzeżeń mieli do niewystarczającej liczby schowków w kabinie ciągnika.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2019, 64, 1; 25-29
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of combustion of qualified composite fuel for the transitional period in the household and communal sector in Poland
Autorzy:
Bembenek, Michał
Dzik, Tomasz
Smyła, Jarosław
Kozłowski, Artur
Wojtas, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/27315551.pdf
Data publikacji:
2022
Wydawca:
STE GROUP
Tematy:
microbriquette
environmentally friendly fuel
solid fuel
composite solid fuel
qualified solid fuel
roller press
Opis:
The article presents the results of laboratory combustion tests of the microbriquette obtained from useless coal (grain class of < 5 mm) generated in the production of “eco-pea” (eko-groszek) coal. The briquettes of 1.5 and 2.5 cm3 were made in a roller press of crushed coal granulation down to 2 mm, mixed with a binder and/or catalytic additives and sorbents, then dried to final moisture of about 7%. The tests were carried out on a specially designed stand enabling to determine the differential curve of the weight loss of samples heated to the ignition temperature and then burnt with laminar airflow by natural chimney draft. Comparative tests were carried out with ecopea coal from the “ZG Sobieski” mine. The results indicate that composite fuels, in the form of microbriquette, ignite faster, burn at a higher temperature and leave less ash when burned than lump coal. The greater reactivity of the briquette concerning the lump coal allows for minimizing the air rate by about 10%, which also reduces the exhaust gas volume by the same amount and the stack losses. It reduces the velocity of dust lifting, which leads to the reduction of their emission.
Źródło:
Management Systems in Production Engineering; 2022, 4 (30); Bibliogr. 40 poz., rys., tab.
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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