Wyniki wyszukiwania - Biblioteka Nauki

1

Problem hybrydy

100%

Kłosiński M.

Świat i Słowo

|

2010

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tom 2010, nr 1(14)

157-166

EN

In the present paper I discuss the problem of a hybrid as a concept, which started functioning on the borderlines between various discourses – in particular legal, media and post-colonial studies. Hence the term itself was appropriated as a textual concept – from the borderline with philosophy – by the institutional discourse that Michel Foucault would include into the sphere of bio-politics. Here I can see the danger of transferring the textual creation into the domain of biological sciences (hence the term that was transplanted from biology returns to it, changing its status from a fictitious one into the real one), and what follows – a hybrid becomes a problem of civilization and societies within which various institutions of bio-politics operate.

2

Effectiveness of hybrid optimization methods in solving test problems and practical issues

80%

Twardochleb M. , Król T. , Włoch P. , Kuka B.

Informatyka Ekonomiczna

|

2013

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nr 4(30)

279-289

EN

This paper shows the results of analyzing the effectiveness and efficiency of a hybrid approach against a variety of optimization problems. An application with a serial-optimization structure, consisting of several methods with different characteristics, is presented. In order to evaluate the initial effectiveness of the hybrid optimization method, a number of test tasks, represented by complex functions with many variables, were examined. Additionally, a real-life case, determining an optimal product variety in a supermarket environment, regarding the highest rate of return for given conditions and limitations, is presented as an instance of the practical use of a hybrid algorithm. The research shows that the results achieved by the hybrid- -optimization method are highly satisfactory, both in terms of efficiency as well as effectiveness.

3

Positive realizations of hybrid linear systems described by the general model using the state variable diagram method

80%

Kaczorek T.

Journal of Automation Mobile Robotics and Intelligent Systems

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2010

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tom Vol. 4, No. 4

3-10

EN

The realization problem for linear hybrid systems described by the general model is formulated and solved. Sufficient conditions for the existence of positive realizations are established. A procedure based on the state variable diagram method for computation of a positive realization of a given transfer matrix is proposed. Effectiveness of the procedure is demonstrated on two examples.

4

Skrzynie biegów z równoległym przepływem mocy podstawą napędu hybrydowego

80%

Pawelski Z.

Napędy i Sterowanie

|

2012

|

tom R. 14, nr 10

54--60

PL

Na przykładzie napędów hybrydowych firm Toyota, Allison oraz własnych przedstawiono zalety przekładni bezstopniowej z równoległym połączeniem przekładni elektrycznej (hydrostatycznej) z mechaniczną. Rozwiązanie takie charakteryzuje się dużą sprawnością przeniesienia mocy, zarówno od silnika do kół, jak i w drugą stronę – od kół do akumulatora energii – oraz wymusza wąski zakres zmian prędkości kątowej silnika i momentu obrotowego, co umożliwia jego pracę w najbardziej korzystnym zakresie. Zalety tej przekładni są korzystne w pojazdach charakteryzujących się dużą dynamiką ruchu, gdyż pozwalają zmniejszyć zużycie paliwa o 20–30% oraz znacząco zmniejszyć ilość spalin, tj. o 40–60% w zależności od składnika spalin.

EN

Basis on the Toyota, Allison and owns hybrid drives, it was shown the advantages of a continuously variable transmission with a parallel connection of electricity (hydrostatic) transmission with a mechanical. This solution is characterized by high efficiency power transfer, both from the engine to the wheels, as well as the other side of the wheels for energy storage and force the narrow scope of the changes in angular velocity and torque of the engine, thus enabling it to work in a most preferred range. The advantages of this gear is beneficial in vehicles, characterized by high dynamics of movement, as they allow to reduce fuel consumption by 20–30% and significantly reduce the amount of exhaust gas, around 40–60% depending on the exhaust component.

5

Metal/Composite Hybrids for Lightweight Applications

80%

Osiecki T. , Nossol P. , Czech A. , Kroll L. , Niesłony A. , Łagoda T.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

|

2015

|

tom z. 106

73

EN

In fields of mechanical engineering, automotive and aircraft industry the increasing demands for efficient energy processes induce the development of load adjusted multi-material constructions. In particular – due to their higher stiffness, good impact behavior and high load capacity – hybrid structures made of fiber reinforced thermoplastics (FRP) and metals can provide a significant contribution for weight reduction and thus for saving natural resources. Compared to establish thermosetting systems like GLARE, ARALL and CARALL in aircraft the new hybrid material is predestined for automotive mass production because of the short cycle times by using thermoplastic polymers.

6

Use of hydraulic hybrid drivetrain in passenger car

80%

Siedlecki M. , Merkisz J.

Journal of Mechanical and Transport Engineering

|

2015

|

tom Vol. 67, No. 4

51--57

EN

The main factor influencing the structure of today's internal combustion engines and all vehicles are UE rules on emissions from exhaust systems. From 2020 year is expected to apply to limit average CO2 emission for the entire fleet of LDV (Light Duty Vehicle) of the manufacturer at 95 g/km, which is directly proportional to fuel consumption. For this reason, manufacturers are looking for new solutions in the field of improving cars energy efficiency. An example of this type of action is using a hybrid powertrain which a combination of combustion engine and other source of energy. Example is series hydraulic drivetrain, used previously only in HDV (Heavy Duty Vehicle). The Battery are hydraulic oil which is pressed in a hydraulic system depending on driving conditions. The aim of the article is to present solution for a hybrid hydraulic drive system for possible use in passenger vehicles. This paper presents the basic structural problems of the hybrid system and a comparison with a conventional hydraulic drive. It may be futureproof solution to meet emission limits of CO2 in the coming years.

PL

Celem artykułu jest prezentacja rozwiązania hybrydowego, hydraulicznego układu napędowego możliwego do zastosowania w pojazdach osobowych. Przedstawiono, podstawowe założenia konstrukcyjne układu hybrydowego oraz porównano go z układem hydraulicznym z konwencjonalnym napędem. Dodatkowo porównano punkty pracy z obydwu rozwiązań wraz z określeniem jednostkowego zużycia paliwa i wydatku energetycznego potrzebnego na przejechanie cyklu homologacyjnego dla pojazdów LDV (Light Duty Vehicle) w Europie – NEDC (New European Drving Cycle). Zdaniem autorów zastosowanie układu hybrydowego, opartego na instalacji hydraulicznej, w pojazdach osobowych może być się przyszłościowym rozwiązaniem, pozwalającym na spełnienie limitów emisji CO2 w nadchodzących latach.

7

Concept of two-level optimization of a hybrid energy supply system

80%

Wieczorek M. , Lewandowski M.

TTS Technika Transportu Szynowego

|

2015

|

tom R. 22, nr 10

161--163, CD

EN

The paper deals with the problems of selection, sizing and obtaining energy management strategy in a hybrid energy supply system. The system consists of a number of energy storages and generators. The two-level optimization using genetic algorithm is presented. The algorithm work was considered in two states: static – while optimizing a HESS configuration with energy management strategy and dynamic while optimizing the strategy in real time. The aim of these research is to develop a method for selecting the optimum configuration of devices in a HESS and to optimize energy management strategy in real time, allowing for interference in the system configuration.

8

Hybrid forms of entertainment in the media

80%

Czarnek-Wnuk P.

Acta Universitatis Lodziensis. Folia Litteraria Polonica

|

2017

|

tom 43

|

nr 5

67-78

EN

The media environment is an extremely variable universe where every now and again we can observe the emergence of new phenomena. Many of those form through blending of often rather different and distant areas. As a result, there emerge hybrid forms, which are not entirely established or completely defined. This article is focussed on those kinds of mixed types based on media entertainment, e.g. infotainment, edutainment, politainment, politicotainment, docutainment etc., which can be observed in the means of mass communication. The goal of the study was to define their essence, their distinctive features, and to indicate the place of those hybrid forms within the media discourses being carried on today.

9

THE EFFECTIVENESS OF USING A HYBRID MODE OF AUTOMATED WRITING EVALUATION SYSTEM ON EFL STUDENTS’ WRITING

80%

Mohsen M. A. , Abdulaziz A.

Teaching English with Technology

|

2019

|

tom 19

|

nr 1

118-131

EN

Automated Writing Evaluation programs have been used extensively to assist both L2 instructors and learners to get corrective feedback and to score students’ final product of writing. Research has found that the AWE programs help in optimizing the writing output. However, little is known about the hybrid mode; use of AWE involving the evaluation of both modes instructors and the AWE program. This paper studies the effects of both modes in developing the students’ writing outputs using a small case study of 6 EFL learners. The learners were exposed to both modes where in each mode they undertook two sessions using the program. In the first phase the learners wrote an essay via MY Access and then saved their input in the program. In the second session, they revised their essays based on the feedback given from the program. In the hybrid mode, the same students in the second session revised their input as per the instructor’s feedback and then continued submitting their essays via MY Access. Results found that under the hybrid condition students significantly outscored the learners with the AWE program.

10

Les anthologies surréalistes : l’élaboration collective d’un genre littéraire hybride

80%

Mannu R.

Quêtes littéraires

|

2016

|

nr 6

74-80

EN

Published for the first time in 1940 the André Breton’s Anthology of black humor inaugurates the great season of surrealist anthologies, which will last until late 60s. The use of the traditional form of the modern anthology by the Surrealists, does not involve into a complete acceptance of its rules, already codified since the end of the 19th century, but rather a deformation of its textual structure and of its objectives, producing a literary genre with particular characteristics. The surrealist anthology, such as those realized by André Breton, Paul Éluard, Louis Aragon and Benjamin Péret, represent an hybrid literary object with structural elements in common with the dictionary, the glossary, the anthology and the catalogue. The surrealist literary collections represent both a different approach to the history of literature and an expression of surrealist poetics.

11

Characterisation of hybrids in genus Pinus using in situ hybridization

80%

Hasiow B. , Tomczak R.

Polish Journal of Natural Sciences. Supplement

|

2003

|

tom 01

12

The research for the auxiliary power unit APU and its work characteristics of BJD6100HEV series hybrid electric bus

70%

Wang Y.

Przegląd Elektrotechniczny

|

2012

|

tom R. 88, nr 3b

93-96

EN

In this paper, the auxiliary power unit APU and its work characteristics of the BJD6100HEV Series Hybrid Electric Vehicle (SHEV) is mainly researched. Through comparing calculation, the type selection designs of auxiliary power unit APU and other key parts are determined.

PL

Zbadano zewnętrzny układ APU w zastosowaniu do hybrydowych samochodów elektrycznych. Zaproponowano kryteria doboru parametrów układu.

13

Broadband Phase Commutator - Theory and Realization

70%

Sadowski M.

Przegląd Elektrotechniczny

|

2010

|

tom R. 86, nr 3

74-75

EN

The paper presents mathematical model, structures and realization of n-port phase commutator on transmission lines. The scattering matrix of multiport phase commutator, structures of two-channel base element (hybrid) and multiport phase commutators are discussed. The synthesis and realization of the phase commutators based on transmission lines are proposed. The particular examples and results of computer analysis and experimental researches of the frequency characteristics are discussed.

PL

W pracy przedstawiono model matematyczny, strukturę blokową oraz realizację n-kanałowych komutatorów fazy zbudowanych z wykorzystaniem linii transmisyjnych. Przedstawiono konstrukcję 4-kanałowego komutatora fazy wykonanego z wykorzystaniem linii transmisyjnych oraz toroidalnych pierścieni ferrytowych. Omówiono też jego najważniejsze charakterystyki.

14

Investigation on Mechanical Properties and Microstructures of Aluminum Hybrid Composites Reinforced with Al2O3/GNPs Binary Particles

70%

Şenel M. C. , Gürbüz M.

Archives of Metallurgy and Materials

|

2021

|

tom Vol. 66, iss. 1

97--106

EN

Nowadays, aluminum-based composites have been produced by pure alumina (Al2O3) or pure graphene nanoplatelets (GNPs) in aluminum matrix because of the high compressive strength of alumina and the solid lubricant properties of graphene. However, there are no studies on the influence of both alumina and graphene reinforced aluminum composites. In this study, Al-Al2O3 and Al-Al2O3-GNPs composites were reinforced with pure alumina (between 0 and 30 wt.%), pure graphene (0, 0.1, 0.3, 0.5 wt.%), and their hybrid forms (Al2O3-GNPs) by the powder metallurgy method. This method involved ultrasonic dispensing, mixing, filtering, drying, pressing, and sintering processes. From the test results, the micro Vickers hardness of pure aluminum (28.2±1 HV) improved to 51.5±0.8 HV (Al-30Al2O3) and 63.1±1 HV (Al-30Al2O3-0.1GNPs). Similarly, the ultimate compressive strength (UCS) enhanced from 92.4±4 MPa (pure aluminum) to 165±4.5 MPa (Al-30Al2O3) and 188±5 MPa (Al-30Al2O3-0.1GNPs), respectively. In conclusion, the Vickers hardness and ultimate compressive strength of aluminum hybrid composites improved up to 0.1 wt.% graphene content. After 0.1 wt.% graphene content, these mechanical properties decreased because of the clumping of graphene nanoparticles.

15

Noise Elimination of a Multi-tone Broadband Noise with Hybrid Helmholtz Mufflers Using a Simulated Annealing Method

70%

Chiu M.-C.

Archives of Acoustics

|

2012

|

tom Vol. 37, No. 4

489-498

EN

Noise control is essential in an enclosed machine room where the noise level has to comply with the occupational safety and health act. In order to overcome a pure tone noise with a high peak value that is harmful to human hearing, a traditional reactive muffler has been used. However, the traditional method for designing a reactive muffler has proven to be time-consuming and insufficient. In order to efficiently reduce the peak noise level, interest in shape optimization of a Helmholtz muffler is coming to the forefront. Helmholtz mufflers that deal with a pure tone have been adequately researched. However, the shape optimization of multi-chamber Helmholtz mufflers that deal with a broadband noise hybridized with multiple tones within a constrained space has been mostly ignored. Therefore, this study analyzes the sound transmission loss (STL) and the best optimized design for a hybrid Helmholtz muffler under a space- constrained situation. On the basis of the plane wave theory, the four-pole system matrix used to evaluate the acoustic performance of a multi-tone hybrid Helmholtz muffler is presented. Two numerical cases for eliminating one/two tone noises emitted from a machine room using six kinds of mufflers (muffler AF) is also introduced. To find the best acoustical performance of a space-constrained muffler, a numerical assessment using a simulated annealing (SA) method is adopted. Before the SA operation can be carried out, the accuracy of the mathematical model has been checked using the experimental data. Eliminating a broadband noise hybridized with a pure tone (130 Hz) in Case I reveals that muffler C composed of a one- chamber Helmholtz Resonator and a one-chamber dissipative element has a noise reduction of 54.9 (dB). Moreover, as indicated in Case II, muffler F, a two-chamber Helmholtz Resonator and a one-chamber dissipative element, has a noise reduction of 69.7 (dB). Obviously, the peak values of the pure tones in Case I and Case II are efficiently reduced after the muffler is added. Consequently, a successful approach in eliminating a broadband noise hybridized with multiple tones using optimally shaped hybrid Helmholtz mufflers and a simulated annealing method within a constrained space is demonstrated.

16

Influence of the hull shape on the energy demand of a small inland vessel with hybrid propulsion

70%

Karczewski A. , Kunicka M.

Polish Maritime Research

|

2021

|

tom nr 3

35--43

EN

Recently, there has been a significant development of ecological propulsion systems, which is in line with the general trend of environmentally friendly “green shipping”. The main aim is to build a safe, low-energy passenger ship with a highly efficient, emission-free propulsion system. This can be achieved in a variety of ways. The article presents the main problems encountered by designers and constructors already at the stage of designing the unit. The research conducted made it possible to create a design with an effective shape of the hull, with the prospect of an energy-efficient and safe propulsion system with good manoeuvrability. The scope of the research included towing tank tests, recalculation of the results in full-scale objects and a prediction of the energy demand of the propulsion system. The results obtained were compared to indicate power supply variants depending on the hull shape.

17

Quality evaluation of broiler chicken carcass from six commercial hybrids

70%

Gornowicz E. , Pawlak A.

Annals of Animal Science. Supplement

|

2005

|

nr 2

18

Wspólnotowość hybrydowa jako kategoria w oglądzie grup studenckich

70%

Bochno E.

Rocznik Pedagogiczny

|

2018

|

tom 41

227-237

EN

The paper scrutinises the university as a place for functioning within the community of student groups with relations and activities which are conducive or detrimental to the creation of the community. An attempt was made to achieve two goals. First of all, to indicate the potential of a theoretical and practical category of a hybrid, as well as a newly introduced, related category of hybrid community. Secondly, in relation to own research findings on dean’s student groups, the potential of their application when perceiving the groups through the category of hybrid community.

19

Pollen viability in hybrid swarm populations of Pinus mugo Turra and P. sylvestris L.

70%

Kormutak A. , Bohovicova J. , Vookova B. , Gomory D.

Acta Biologica Cracoviensia. Series Botanica

|

2007

|

tom 49

|

nr 1

61-66

EN

Pollen viability was tested in two hybrid swarm populations of Pinus mugo and P. sylvestris in northern Slovakia and in control populations of the parental species. It was significantly reduced in hybrid populations, as evidenced by average germination percentages ranging from 49.0% and 61.53% and by pollen tube length averaging 74.54-86.47 µm. The corresponding values in the control populations were 78.38-88.5% and 102.92-152.84 µm, respectively. The frequency of microsporogenesis disturbances at the tetrad and mature pollen stages was higher in hybrid swarms than in the control population of P. sylvestris. Based on in vitro germination data, the amount of sterile pollen was estimated at 40-41% in hybrid swarm populations, 12% in P. sylvestris, and 21% in P. mugo.

20

Procedural Modelling of Three-Dimensional Geometry

70%

Zawadzki T. , Nikiel S. , Warszawski K.

Machine Graphics and Vision

|

2011

|

tom Vol. 20, No. 2

113-138

EN

Modelling three-dimensional shapes plays an increasingly significant role in modern computer graphics. Geometry synthesis is used in many fields, including digital cinema, electronic entertainment and computer simulations. Unfortunately, the modelling process is still done manually, offering a unique output at the cost of tedious work. There is a constant need to replace designers' work with intelligent automated algorithms. The methods based on the automation of modelling processes offer a variety of three-dimensional structures within limited time and restricted money budget. This paper addresses the problem of automated modelling of virtual structures such as caves, buildings and clouds, and presents an alternative solution in the form of a hybrid system. The innovative approach combines two independent methods well known in three-dimensional computer graphics: shape grammar and shape morphing. In the modelling process, it is possible to obtain the characteristics of 3D structures with non-spherical mesh topology. The objects and their transformations are described by functions, while rule grammars define the geometry modelling process. The shapes thus obtained can be freely deformed in the subsequent rules. The resulting structure can be rendered up to very high levels of visual realism. However, in the paper we present the description of the algorithm illustrated by results on a 3D mesh without focusing on photorealistic rendering aspects. We also propose some measures that can be used to verify the model geometry.