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Wyszukujesz frazę "intensification" wg kryterium: Temat


Tytuł:
A Numerical Study of The Heat Transfer Intensification Using High Amplitude Acoustic Waves
Autorzy:
Rulik, S.
Wróblewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/177492.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cavity noise
sound wave cooling
flow over a cavity
transient cooling
blade cooling intensification
Opis:
The current practice in the efforts aiming to improve cooling conditions is to place emphasis on the application of non-stationary flow effects, such as the unsteady jet heat transfer or the heat transfer intensification by means of a high-amplitude oscillatory motion. The research presented in this paper follows this direction. A new concept is put forward to intensify the heat transfer in the cooling channels with the use of an acoustic wave generator. The acoustic wave is generated by a properly shaped fixed cavity or group of cavities. The sound generated by the cavity is a phenomenon analysed in various publications focused on the methods of its reduction. The phenomenon is related to the feedback mechanism between the vortices flowing from the leading edge and the acoustic waves generated within the cavity. The acoustic waves are generated by the interaction between the vortices and the cavity walls. Strong instabilities can be observed within a certain range of the free flow velocities. The investigations presented in this paper are oriented towards the use of the phenomenon for the purposes of the heat transfer process intensification. The first part of the work presents the numerical model used in the analysis, as well as its validation and comparison with empirical relations. The numerical model is constructed using the commercial CFD Ansys CFX-16.0 commercial program. The next part includes determining of the relationship between the amplitude of the acoustic oscillations and the cooling conditions within the cavity. The calculations are performed for various flow conditions.
Źródło:
Archives of Acoustics; 2018, 43, 1; 31-47
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
À propos de quelques structures polyprédicatives comparatives à dominante extensive et/ou intensive
About several polypredictive comparative structures with extensive and/or intensive dominant
Autorzy:
Hajok, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/1048300.pdf
Data publikacji:
2019-05-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
comparison
extension
intensification
quantification
lexico-syntactic structure
predicative structure
Opis:
The objective of this study is to discuss the semantic properties of the comparative structures polyprédicatves to dominant extensive and/or intensive. The comparative structures released for the need for this study make it possible to specify the nature of the concept of ‘compariso’.
Źródło:
Studia Romanica Posnaniensia; 2019, 46, 1; 65-73
0137-2475
2084-4158
Pojawia się w:
Studia Romanica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aplikacyjność bioreaktora single-use z mieszaniem typu wave w bioprocesach przeprowadzanych w warunkach tlenowych
Applicability of a single-use bioreactor with wave-induced agitation in oxygen-dependent bioprocesses
Autorzy:
Pilarek, M.
Sobieszuk, P.
Wierzchowski, K.
Dąbkowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/2073265.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
bioreaktor z mieszaniem typu wave
technologia single-use
intensyfikacja natleniania
bioreactor with wave-induced agitation
single-use technology
intensification of oxygenation
Opis:
Przedyskutowano intensyfikację napowietrzania fazy ciekłej w bioreaktorze typu single-use z mieszaniem typu wave na przykładzie reaktora ReadyToProcess WAVE™25 z polimerowym naczyniem hodowlanym o objętości 2 dm3. Wyróżniono dwie grupy czynników procesowych wpływających na efektywność napowietrzania: parametry dotyczące gazu i fazy ciekłej oraz parametry związane z falą generowaną w aparacie. Dla zbadanych wariantów napowietrzania fazy ciekłej uzyskano równowagę termodynamiczną O-2-woda. Potwierdzono aplikacyjność reaktora WAVE™25 do realizacji bioprocesów z komórkami o metabolizmie tlenowym.
Intensification of liquid phase oxygenation in a single-use bioreactor with wave-induced mixing, i.e. ReadyToProcess WAVE™25 system equipped with 2 dm3 culture bag has been discussed. Two groups of process factors influencing on oxygenation effectiveness have been recognized: parameters related to gas and liquid phases, and parameters related to the wave induced inside the culture bag. The O-2-water thermodynamic equilibrium has been obtained for all studied variants of oxygenation process. The applicability of the WAVE™25 system in oxygen-dependent bioprocesses has been confirmed.
Źródło:
Inżynieria i Aparatura Chemiczna; 2017, 4; 136--137
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budownictwo mieszkaniowe w Polsce w latach 2005-2008
Housing Construction in Poland in 2005-2008
Autorzy:
Żelawski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/447471.pdf
Data publikacji:
2009-09
Wydawca:
Instytut Rozwoju Miast
Tematy:
budownictwo wielorodzinne i indywidualne
struktura inwestorska
cykl budowy
powierzchnia użytkowa mieszkań
wskaźniki nasilenia budownictwa
multi- and single-family housing development
investors' structure
construction cycle
usable area of flats
rates of housing development intensification
Opis:
W artykule zawarto ocenę budownictwa mieszkaniowego w Polsce w latach 2005-2008. Analiza w szczególności obejmuje ekonomiczno-organizacyjne aspekty budownictwa w zakresie jego wielkości, struktury inwestorskiej oraz metod wznoszenia domów. Przedstawia również wskaźniki nasilenia budownictwa mieszkaniowego, obrazujące warunki zamieszkiwania w układzie terytorialnym.
The article contains evaluation of the housing development in Poland in 2005-2008. The analysis includes, in particular, economic and organizational aspects of housing projects as regards their size, investors' structure, and methods of construction. It also presents rates of housing development intensification, which illustrate living conditions in a territorial arrangement.
Źródło:
Problemy Rozwoju Miast; 2009, 3; 76-85
1733-2435
Pojawia się w:
Problemy Rozwoju Miast
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cellular Automata Markov Method, an Approach for Rice Self-Sufficiency Projection
Autorzy:
Sutrisno, Dewayany
Ambarwulan, Wiwin
Nahib, Irmadi
Turmudi, -
Suryanta, Jaka
Windiastuti, Rizka
Kardono, Priyadi
Powiązania:
https://bibliotekanauki.pl/articles/952384.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
rice field
conversion
food security
intensification
food
Indramayu
Indonesia
Opis:
This article discusses the ability of the Cellular Automata (CA) Markov method to project rice sufficiency by considering the conversion of massive rice fields, such as the ones in Indonesia. The conversion of rice fields into land use for non-farming due to the rapidly growing population, industry and economic needs is increasingly affecting the rice self-sufficiency. With the development of remote sensing techniques, such as CA Markov, which has been used for years in spatial change projection, there is a need to assess the rice field conversion and its impact on the rice field self-sufficiency. The process is not solely based on CA Markov but also includes an object-based classification method utilising multi-temporal spot image data to derive land use maps, CA Markov for rice field conversion projection and rice self-sufficiency assessment, which was developed by assessing the availability of rice, consumption and production. Using the Indramayu district as the study area, the results indicate that within the next 20 years, the rice field area will decrease, and the impact on rice self-sufficiency will be 5.34 for Business as usual (BAU) and 0.47 when considering population growth. The previous research validated the results and indicated the efficiency of this method for rice self-sufficiency projection. Moreover, a management assessment was also conducted and indicated that in order to maintain rice self-sufficiency, innovation in the planting and seed systems as well as in farmers’ welfare management, such as incentives and subsidies, local food diversification systems and innovative food technique development to support food diversification, should be considered.
Źródło:
Journal of Ecological Engineering; 2019, 20, 6; 117-125
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the environmental impact of Polish agriculture after the accession to the European Union
Autorzy:
Kociszewski, K.
Powiązania:
https://bibliotekanauki.pl/articles/43994.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
Polska
agriculture
European accession
European Union
environmental impact
change
pollutant emission
environment protection
Common Agricultural Policy
production intensification
livestock production
Źródło:
Journal of Agribusiness and Rural Development; 2018, 50, 4
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka wpływu wirującego pola magnetycznego na współczynnik kLa w reaktorze airlift z zewnętrzną cyrkulacją cieczy
Analysis of rotating magnetic field influence on kLa coefficient in an airlift reactor with the external liquid circulation
Autorzy:
Lechowska, J.
Kordas, M.
Rakoczy, R.
Powiązania:
https://bibliotekanauki.pl/articles/2073350.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
reaktor airlift
hold-up
współczynnik wnikania masy
wirujące pole magnetyczne
intensyfikacja
airlift reactor
mass transfer coefficient
rotating magnetic field
intensification
Opis:
W pracy scharakteryzowano wpływ wirującego pola magnetycznego na stopień zatrzymania gazu w cieczy (hold-up) oraz objętościowy współczynnik wnikania masy kLa w nowej konstrukcji reaktora airlift. W ramach przeprowadzonych badań przeanalizowano wpływ prędkości liniowej strumienia gazu oraz częstotliwości i miejsca ekspozycji WPM na testowane wielkości. Uzyskane wyniki pozwoliły na stwierdzenie, że zastosowanie WPM pozytywnie wpływa na intensyfikację procesu wymiany masy w reaktorze airlift.
The main aim of this paper is to present the effect of rotating magnetic field (RMF) on gas hold-up and volumetric mass transfer coefficient kLa in a new construction of airlift reactor. Moreover, the influence of superficial gas velocity and frequency and RMF exposure location on tested parameters were analyzed. It was concluded that the use of RMF positively influences the mass transfer process intensification in the airlift reactor.
Źródło:
Inżynieria i Aparatura Chemiczna; 2018, 3; 69--70
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of technological efficiency of oil production intensification in carbonate collector. Advantages of the technology of radial drilling
Autorzy:
Ziaja, J.
Movchan, V.
Powiązania:
https://bibliotekanauki.pl/articles/298631.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
drilling
radial drilling
intensification of oil production
Opis:
The paper presents a comparative analysis of the results of radial drilling, drilling perforation, cumulative reperforation and acid treatment. The study was focused at carbonate deposits in Russia. For each technology average incremental oil rates were estimated at the same exploration targets. The analysis of technological effectiveness in the given geologic and physical conditions revealed that drilling perforation and radial drilling allow reaching higher incremental oil rates compared to acid treatment and cumulative perforation. This fact confirms effectiveness of drilling radial canals by enlarging infiltration area. For the sake of completion radial drilling and drilling perforation are performed in the same wells. To reveal limiting conditions of applying radial drilling and drilling perforation an effectiveness analysis is made depending on the thickness of the interlayers exposed. To formulate criteria of radial exposing applicability an analysis of effects of different geological and physical formation parameters on geological and engineering operations effectiveness is done. The following parameters are considered: relation between the current formation pressure and initial formation pressure, formation permeability, skin factor, thickness of interlayers in overall perforation interval, thickness of interlayers exposed by radial canals.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 2; 303-312
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computational Fluid Dynamics and Experimental Studies of a New Mixing Element in a Static Mixer as a Heat Exchanger
Autorzy:
Konopacki, M.
Kordas, M.
Fijałkowski, K.
Rakoczy, R.
Powiązania:
https://bibliotekanauki.pl/articles/185462.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mixing
heat transfer process
static mixer
CFD
process intensification
mieszanie
proces przenikania ciepła
mieszalnik statyczny
intensyfikacja
Opis:
The main aim of this work is to study the thermal efficiency of a new type of a static mixer and to analyse the flow and temperature patterns and heat transfer efficiency. The measurements were carried out for the static mixer equipped with a new mixing insert. The heat transfer enhancement was determined by measuring the temperature profiles on each side of the heating pipe as well as the temperature field inside the static mixer. All experiments were carried out with varying operating parameters for four liquids: water, glycerol, transformer oil and an aqueous solution of molasses. Numerical CFD simulations were carried out using the two-equation turbulence k-ω model, provided by ANSYS Workbench 14.5 software. The proposed CFD model was validated by comparing the predicted numerical results against experimental thermal database obtained from the investigations. Local and global convective heat transfer coefficients and Nusselt numbers were detrmined. The relationship between heat transfer process and hydrodynamics in the static mixer was also presented. Moreover, a comparison of the thermal performance between the tested static mixer and a conventional empty tube was carried out. The relative enhancement of heat transfer was characterised by the rate of relative heat transfer intensification.
Źródło:
Chemical and Process Engineering; 2015, 36, 1; 59-72
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corpus-based Analysis of Verbal and Nominal Reduplication in Colloquial Singapore English
Autorzy:
Paweł, Ziomek,
Powiązania:
https://bibliotekanauki.pl/articles/888775.pdf
Data publikacji:
2020-09-14
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
reduplication
corpus study
persuasion
affection
intensification
Colloquial Sinapore English (CSE)
Opis:
Reduplication has always been an important subject of morphology and language typology. Cross-linguistic studies have identified 45 functions of reduplication in 108 languages. Total reduplication is recognised as productive and systematic in Colloquial Singapore English (CSE), possibly due to language contact. The paper aims to present the cases of verbal and nominal reduplication in CSE described in the linguistic literature, and juxtapose them with the examples from the Singapore component of the International Corpus of English (ICE-SIN), which seem to be indicative of discrepancies in form and functions.
Źródło:
Anglica. An International Journal of English Studies; 2020, 29/2; 55-71
0860-5734
Pojawia się w:
Anglica. An International Journal of English Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the Specific Heat Flux During Boiling of the Dispersed Phase of the Emulsion
Autorzy:
Pavlenkо, Anatoliy
Koshlak, Hanna
Basok, Borys
Hrabova, Tatiana
Powiązania:
https://bibliotekanauki.pl/articles/27315739.pdf
Data publikacji:
2023
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
steam explosion
homogenisation
boiling
intensification of heat
mass transfer
Opis:
The intensity of heat exchange between the boiling emulsion and the enclosing surfaces is associated with the physical phenomena of the formation, growth, and destruction of vapour bubbles of the low-boiling component in the liquid phase. This article presents a methodology to assess the intensity of heat exchange processes. Using this technique, it is possible to predict the energy parameters of heat exchange equipment and the degree of intensification of heat transfer processes.
Źródło:
Rocznik Ochrona Środowiska; 2023, 25; 16--24
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of ORC’s for micro power generation
Autorzy:
Mikielewicz, Jarosław
Mikielewicz, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/1191859.pdf
Data publikacji:
2018
Wydawca:
Gdańska Szkoła Wyższa
Tematy:
CHP
ORC
heat exchangers
heat transfer intensification
thermodynamics
Opis:
In the paper, new trends in development of micro power generation of heat and electricity are presented. New type of CHP for domestic usage is developed in the Institute of Fluid-Flow Machinery PAS and methods of its design are presented. The most promising trends in equipment of ORC cycle for this purpose were discussed. Main attention was focused on micro-heat exchangers design based on micro-channels and micro-jets. In our opinion future development of high power heat exchangers will be based on nets micro-heat exchangers.
Źródło:
Eco-Energetics: technologies, environment, law and economy; 2018, 1; 51--72
2657-5922
2657-7674
Pojawia się w:
Eco-Energetics: technologies, environment, law and economy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
È stato un mezzo disastro… Fenomeni di convergenza tra approssimazione e intensificazione: uno studio contrastivo su italiano e russo
È stato un mezzo disastro… Points of Convergence Between Approximation and Intensification: A Contrastive Italian-Russian Study
Autorzy:
Benigni, Valentina
Powiązania:
https://bibliotekanauki.pl/articles/11541941.pdf
Data publikacji:
2023-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
approximation
mitigation
intensification
downtoner
contrastive analysis
approssimazione
mitigazione
intensificazione
analisi contrastiva
Opis:
Based on the case-study of the Italian downtoner mezzo, ‘half of’, the present work aims to highlight, through a usage-based approach, interesting points of semantic and functional convergence between approximation and intensification, which are traditionally considered divergent meaningconstruction strategies. Mezzo functions both on the semantic level, by modulating the referential force of nouns, verbs, and adjectives, and on the pragmatic level, where it acts as a discourse marker, enabling the speaker to reduce the illocutionary force of their assertions and helping the receiver to make the inferences necessary to recognise the speaker’s communicative intentions in cases of “loose talk” (in Relevance Theory terms), such as understatement and overstatement. In the second part of the article, the results of a contrastive analysis with Russian are discussed, based on the assumption that the identification of functional equivalences between different languages is a valid heuristic method to explain the semantic and pragmatic multifunctionality of certain lexical elements, also from a cross-linguistic perspective.
A partire dal case-study dell’approssimante italiano mezzo ‘metà di’ e attraverso un approccio basato sull’uso, il presente lavoro si propone di evidenziare interessanti punti di convergenza semantica e funzionale tra approssimazione e intensificazione, strategie di costruzione del significato tradizionalmente considerate divergenti. Mezzo agisce sia a livello semantico, modulando la forza referenziale di nomi, verbi e aggettivi, sia a livello pragmatico, dove funziona come marca discorsiva che consente al parlante di ridurre la forza illocutiva delle sue affermazioni e al ricevente di compiere le inferenze necessarie a interpretare correttamente le intenzioni dell’interlocutore dietro ad usi non letterali (o cosiddetti loose dalla Teoria della Pertinenza), quali, ad esempio, l’understatement e l’iperbole. Nella seconda parte dell’articolo verranno discussi i risultati di un’analisi contrastiva con il russo, partendo dal presupposto che l’identificazione di equivalenze funzionali tra lingue diverse è un metodo euristico valido per spiegare la multifunzionalità semantica e pragmatica di alcuni elementi lessicali, anche in una prospettiva interlinguistica.
Źródło:
Italica Wratislaviensia; 2023, 14.1; 9-34
2084-4514
Pojawia się w:
Italica Wratislaviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ensuring the economic efficiency of enterprises by multi-criteria selection of the optimal manufacturing process
Autorzy:
Kotliar, Alexey
Basova, Yevheniia
Ivanov, Vitalii
Murzabulatova, Olena
Vasyltsova, Svitlana
Litvynenko, Mariia
Zinchenko, Olena
Powiązania:
https://bibliotekanauki.pl/articles/406764.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
prismatic part
multiproduct manufacturing
machining
optimality criteria
optimization
shaping intensification
profit intensity
Opis:
Technological assurance and improvement of the economic efficiency of production are the first-priority issues for the modern manufacturing engineering area. It is possible to achieve a higher value of economic efficiency in multiproduct manufacturing by multicriteria optimization. A set of optimality criteria based on technological and economic indicators was defined with the aim of selecting the optimal manufacturing process. Competitive variants and a system of optimization were developed and investigated. A comparative analysis of the optimality criteria and their influence on the choice of optimal machining processes was carried out. It was determined that the batch of parts made an impact on the selection of the manufacturing process.
Źródło:
Management and Production Engineering Review; 2020, 11, 1; 52-61
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Escape from Etymology? A Corpus Study of Polish Adjectival Intensifiers
Ucieczka od etymologii? Korpusowe studium polskich przysłówków wzmacniających
Autorzy:
Dziwirek, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1848241.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
adjective
etymology
connectivity
semantic specificity
intensification
intensyfikacja
przymiotnik
etymologia
łączliwość
specyficzność semantyczna
Opis:
Using the Polish National Corpus (NKJP), the author discusses 31 Polish reinforcing adverbs to determine the degree of their semantic specificity and freedom of connection with adjectives. Empowering adverbs express the person’s judgement, attitudes, and emotions. The author shows that most of the reinforcing adverbs have not deviated from their etymology, even though they are considered synonyms of the word “very”: their etymological meanings influence the choice of the adjective. The most frequently reinforced adjectives in NKJP are “difficult”, “important” and “essential”.
Używając Narodowego Korpusu Języka Polskiego (NKJP), autorka omawia 31 polskich przysłówków wzmacniających, aby określić stopień ich specyficzności semantycznej oraz dowolności łączenia się z przymiotnikami. Przysłówki wzmacniające wyrażają sądy, postawy i emocje osoby mówiącej. Autorka pokazuje, że większość przysłówków wzmacniających nie oddaliło się od swojej etymologii, mimo że są uważane za synonimy słowa bardzo: ich etymologiczne znaczenia wpływają na wybór przymiotnika. Najczęściej wzmacniane przymiotniki w NKJP to trudny, ważny i istotny.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio N – Educatio Nova; 2020, 5; 453-472
2451-0491
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio N – Educatio Nova
Dostawca treści:
Biblioteka Nauki
Artykuł

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