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Wyświetlanie 1-15 z 55
Tytuł:
Sposoby ograniczenia zużycia energii przez obrabiarki skrawające do metali
Methods of power consumption reduction in metal cutting machines
Autorzy:
Stembalski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2071272.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
obrabiarka
oszczędność energii
redukcja mas
machine tool
conservation energy
mass reduction
Opis:
W artykule przedstawiono potrzebę oszczędności energii w przemyśle, ze względu na koszty i ochronę środowiska. Wyznaczono obszary występowania strat energii w obrabiarkach i systemach wytwórczych. Ponadto omówiono możliwości wpływania na redukcję zużycia energii. Opisano sposoby zmiany struktury obrabiarek, redukcję ruchomych mas w obrabiarkach oraz tzw. „dematerializację".
Necessity of energy consumption reduction in the industry is presentee this paper. An area of machine tools' and production systems' energy we is determined and opportunities for its reduction are discussed. Methods machine tool structural change, movable mass reduction and so called materialisation are described.
Źródło:
Inżynieria i Aparatura Chemiczna; 2010, 5; 107-108
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expansion of the Universe and Cosmic Microwave Background Correlation and Detecting Deficient Energy Photons
Autorzy:
Tambunga, Gabriel James
Powiązania:
https://bibliotekanauki.pl/articles/1177861.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Conservation of Energy
Conservation of Momentum
Deficient Energy Photons
Expansion
Microwave
Opis:
The Conservation of Energy and Conservation of Momentum was balanced in 2016 for the first time, from the perspective of the reflector, to the authors knowledge, when motion of a reflector results after a reflection. The method used for balancing the conservation laws was applied to the model of the Expansion of the Universe and a direct correlation to the peak wavelengths of the Cosmic Microwave Background was determined and associated with the maximum velocities of the Expansion of the Universe model. The method also indicates there may be more celestial bodies moving toward an observer than what is currently observed through modern telescopes. An experimental setup is presented, but not tested, that may be able to view an increase of celestial bodies compared to what is currently observed through modern telescopes.
Źródło:
World Scientific News; 2018, 98; 115-126
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does Physics Forbid Libertarian Freedom?
Autorzy:
Koperski, Jeffrey
Powiązania:
https://bibliotekanauki.pl/articles/2083941.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Instytut Filozofii
Tematy:
libertarianism
free will
conservation of energy
dualism
emergentism
Opis:
Three well-known physicists have recently argued that libertarian freedom is impossible. In their view, free will is incompatible with what we know about science at the most fundamental level. Here I show that their arguments presuppose a naïve version of reductionism and consider two alternatives, one appealing to mind–body dualism and the other to emergentism. The former says that free will is a capacity of one’s mind, an immaterial entity not subject to the laws of nature. The latter says that free will is an emergent capacity that cannot be reduced to the properties of an agent’s constitutive atoms. These alternatives, however, face the same problem: They seem to violate a fundamental law, namely the conservation of energy. I show how the libertarian can respond to this objection.
Źródło:
Filozoficzne Aspekty Genezy; 2022, 19, 1; 111-132
2299-0356
Pojawia się w:
Filozoficzne Aspekty Genezy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy – conversion, conservation and management
Autorzy:
Badur, J.
Powiązania:
https://bibliotekanauki.pl/articles/175468.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
internal
kinetic and potential energy
energy fluxes
energy conservation
energy conversion
Opis:
Energy is an abstract notion that helps to understand the nature and contributes to the creation of the civilization. The energy notion has a huge meaning not only due to practical reason – it is essential for economy and philosophy too. It turns out that in Hellenic philosophy, and especially in its fundamental part, i.e., metaphysics, there is no place for the concepts and methods of reasoning developed by physics and chemistry. Philosophy assumes that most of the physical and chemical concepts are not known in nature in spe these are employed by science only as a kind of mental keys (qualitative occultea) for the description and understanding of the universe. The concept of energy is only one example of a notion accepted both by the philosophers (in its metaphysical sense) and physicians (in its descriptive role).
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2015, 127; 27-43
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SOURCE’S and SINKs in Phases of Matter
Autorzy:
Tambunga, Gabriel James
Powiązania:
https://bibliotekanauki.pl/articles/1178530.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Conservation of Energy
Conservation of Momentum
Energy Deficient Photons
Energy Excess Photons
Phases of Matter
Space-Time Geometry
Opis:
The space-time geometry around a photon was held constant despite the photon sources speed relative to a reflector, in a previous publication [1]. This resulted in the conservation of energy and momentum being balanced for a reflection, when motion of a reflector occurs after a reflection, relative to a reflector and a photon sources perspective, for the first time, to the author’s knowledge. As a result, photons from moving sources have energies that are not equal to the energies observed. As photon sources moving towards and away from a reflector reflects photons, there may be mechanisms where energy deficient photons and photons with excess energy, compared to what is observed, acquire energy and disperse energy from and to its surroundings, respectively, so a reflection can occur. A reflector can be in a solid, liquid or a gas, where each phase presents possible sources of energy, for energy deficient photons, and possible sinks for photons with excess energy. No discreet and non-discreet energies associated with the phases of matter are disregarded as a possible source or sink, as this may delay detection of energy deficient photons and photons with excess energy, where tests for their detection are suggested.
Źródło:
World Scientific News; 2017, 70, 2; 189-200
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Resource scheduling in cloud environmet: a survey
Autorzy:
Mangla, N.
Singh, M.
Rana, S. K.
Powiązania:
https://bibliotekanauki.pl/articles/102866.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
resource scheduling
energy conservation
cloud computing
virtualization
service level agreement
Opis:
Cloud Computing offers the avant-garde services at a stretch that are too attractive for any cloud user to ignore. With its growing application and popularization, IT companies are rapidly deploying distributed data centers globally, posing numerous challenges in terms of scheduling of resources under different administrative domains. This perspective brings out certain vital factors for efficient scheduling of resources providing a wide genre of characteristics, diversity in context of level of service agreements and that too with user-contingent elasticity. In this paper, a comprehensive survey of research related to various aspects of cloud resource scheduling is provided. A comparative analysis of various resource scheduling techniques focusing on key performance parameters like Energy efficiency, Virtual Machine allocation and migration, Cost-effectiveness and Service-Level Agreement is also presented.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 38-50
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phenomenological modeling of mechanical properties of metal foam
Modelowanie metodą fenomenologiczną mechanicznych właściwości pian metalowych
Autorzy:
Wegner, T.
Kurpisz, D.
Powiązania:
https://bibliotekanauki.pl/articles/949201.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
metal foam
strain energy density function
phenomenological method of modeling
energy conservation principle
Opis:
In this paper, constitutive relations for metal foam under complex load are introduced using a phenomenological concept. On the basis of stress-strain and transversal-longitudinal strain dependencies in uniaxial tests, a form of the function for strain energy density is specified, and further, the criterion for loss of stability due to the occurrence of plastic flow is defined. The theoretical investigations are illustrated by a short numerical example.
W niniejszej pracy, bazując na fenomenologicznym sposobie podejścia, wyprowadzono związki konstytutywne piany metalowej poddanej złożonemu stanowi obciążenia. Na podstawie zależności naprężenia oraz odkształcenia poprzecznego od odkształcenia podłużnego uzyskanych w jednoosiowych próbach, wyznaczono wzór opisujący funkcję gęstości energii wewnętrznej, a następnie sformułowano analityczną postać kryteriów zniszczenia materiału ze względu na wystąpienie plastycznego płynięcia. Rozważania teoretyczne zilustrowano prostym przykładem numerycznym.
Źródło:
Journal of Theoretical and Applied Mechanics; 2013, 51, 1; 203-214
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Issledovanie ehnergocberezhenija v kabinakh selskokhozjajjstvennykh mashin
Study of energy conservation in cabin of agricultural machinery
Autorzy:
Tarasenko, S.
Kyurchev, S.
Powiązania:
https://bibliotekanauki.pl/articles/77951.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
car
energy conservation
agricultural machine
machine cabin
ambient temperature
heat flux
Opis:
Проведен анализ условий, влияющих на энергосбережение в кабинах сельскохозяйственных машин.
The conditions that affect energy efficiency in the cabs of agricultural machinery.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 3
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eshhjo raz o radiusakh ehlektrichnogo kolesa
Once again about radius of elastic wheel
Autorzy:
Pozhidaev, S.
Powiązania:
https://bibliotekanauki.pl/articles/77220.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
elastic wheel
rolling radius
ultra low pressure
energy conservation
linear velocity
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 3
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Study of Wireless Sensor Networks Energy-Efficient Topologies and Power Save Protocols
Autorzy:
Niewiadomska-Szynkiewicz, E.
Kwaśniewski, P.
Windyga, I.
Powiązania:
https://bibliotekanauki.pl/articles/309032.pdf
Data publikacji:
2009
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
ad hoc networks
energy conservation protocols
topology control
wireless sensor network
Opis:
Ad hoc networks are the ultimate technology in wireless communication that allow network nodes to communicate without the need for a fixed infrastructure. The paper addresses issues associated with control of data transmission in wireless sensor networks (WSN) - a popular type of ad hoc networks with stationary nodes. Since the WSN nodes are typically battery equipped, the primary design goal is to optimize the amount of energy used for transmission. The energy conservation techniques and algorithms for computing the optimal transmitting ranges in order to generate a network with desired properties while reducing sensors energy consumption are discussed and compared through simulations. We describe a new clustering based approach that utilizes the periodical coordination to reduce the overall energy usage by the network.
Źródło:
Journal of Telecommunications and Information Technology; 2009, 3; 68-75
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Quantum Theory of Impact Phenomenon for the Conditions of Elastic Deformation of Impacted Body
Autorzy:
Pluta, Z.
Hryniewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/412030.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
impact
Quantum (potential)
potential field
energy
Principle of mechanical energy conservation
space-time
dynamics
Opis:
The work contains some of the elements of adequate quantum theory of impact phenomenon. These elements form the prelude to verification of the existent non-adequate theory of the impact phenomenon. At first a correct definition of impact has been formulated. For comparison, the interpretation of the elastic impact according to the existent knowledge is given. Then, taking advantage of the new correctly formulated the principle of mechanical energy conservation, the energetic states of impacting body have been described. Basing on this, the formula on dynamic deflection has been derived. This formula is adequate in character and fully corresponds with investigated reality.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 7, 1; 45-59
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detailed Energy Audit of Thermal Power Plant Equipment
Autorzy:
Das, Sourabh
Mukherjee, Mainak
Mondal, Surajit
Powiązania:
https://bibliotekanauki.pl/articles/1193916.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Energy Audit
Energy Conservation
Lighting Audit
Motor Audit
Pump Audit
Thermal Power Plant
Transformer Audit
Opis:
Energy audit is a technique developed to reduce unnecessary usage of energy, control and also streamline processes leading to energy efficiency. Energy audit and its impact on a daily basis is high and hence is of good significance. Energy Conservation over the years has been a key in terms of saving excessive bills and building up unnecessary usage both domestically and industrially. The world is not completely energy efficient yet, it should be a made sure that the process to ensure optimum usage and saving wherever possible. In this paper we shall discuss in brief about energy audit in a thermal power plant, techniques and ways data are obtained. India’s strive for complete energizing is yet on the verge of completion, need for saving unused energy and also recovering waste energy can be beneficial in developing an energy content environment. The energy audit carried out in thermal power plant gives a presentation of the data and corners of collecting data.
Źródło:
World Scientific News; 2015, 22; 70-90
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer modeling of destructive fire hazards dynamics
Kompjuternoe modelirovanie dinamiki opasnykh faktorov pozhara
Autorzy:
Michaylov, D.
Powiązania:
https://bibliotekanauki.pl/articles/792505.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
fire
computer modelling
mathematical simulation
CFD modelling
combustion
model analysis
energy conservation law
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 3
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of Energy Intensity in Indian Iron and Steel Sector: A Panel Data Analysis
Autorzy:
Sharma, Anukriti
Roy, Hiranmoy
Dalei, Narendra Nath
Powiązania:
https://bibliotekanauki.pl/articles/1194459.pdf
Data publikacji:
2019-07-02
Wydawca:
Główny Urząd Statystyczny
Tematy:
energy intensity
Indian Iron and Steel sector
Energy Conservation Act
Perform-Achieve-Trade Mechanism
panel data
Opis:
India is the world's third largest consumer of primary energy, which includes fossil fuels like coal, oil, etc. The total primary energy consumption in India in 2015 was 107 Mtoe. India's total final energy consumption was estimated at 527 Mtoe of which the industrial sectors consumed about 30% (185 Mtoe) in 2013. The Iron and Steel sector is one of the most energy-intensive industries, consuming about 25% of the total industrial energy consumption. The energy consumption in Indian Iron and Steel sector is on the declining trend. It declined from 10 GCal/tcs in 1990 to 6.9 GCal/tcs in 2010-11. On average, iron & steel plants spend about 20-40% of the total manufacturing cost to meet their energy demands. In fact, energy cost is considered as a major factor in pricing of the steel. Energy Conservation Act, 2001 (ECA), and the formulation of Bureau of Energy Efficiency are important initiatives taken up by government in order to reduce energy consumption by various sectors in the Indian economy. Another important initiative is launching of first of its kind market-based mechanism, Perform, Achieve and Trade (PAT) mechanism in 2010 particularly targeting the energy consumption by the industrial sector of the economy. Phase-I for PAT ran from 2012-015 including eight most energy-intensive sectors under Indian Industrial sector, with Iron and Steel sector being a prominent sector. The objective of this paper is to empirically estimate the energy intensity of Indian Iron and Steel sector, also accounting for the impact of ECA and PAT Phase-I in dummy variable form. The results indicate that the decline in energy consumption in this sector until 2011 can also be attributed to Energy Conservation Act implemented in the year 2001 along with other factors. This is empirically confirmed by our results that ECA has a significant impact on reduction of energy intensity of the steel firms. PAT does not seem to have a considerable impact on energy intensity alone but in the years where both PAT and ECA are prevalent, i.e. from 2012 to 2015, there seems to be a significant impact of around 0.050 reduction in energy intensity, as accounted by different models in this paper. There is one more observation from the empirical results that profit margin intensity was found to be negatively related to energy intensity implying more profitable firms invest more in energy efficiency.
Źródło:
Statistics in Transition new series; 2019, 20, 2; 107-121
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 55

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