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Tytuł:
Le manque en tant que métaphore de l’écriture : de l’indicible et du mot-absence chez Marguerite Duras
Absence as a metaphor for writing – on the missing word and that which is inexpressible in the works of Marguerite Duras
Autorzy:
Ledwina, Anna
Powiązania:
https://bibliotekanauki.pl/articles/483651.pdf
Data publikacji:
2011
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Wydawnictwo Werset
Tematy:
absence
fragmentation
elliptical style
silence
inexpressible
Opis:
Marguerite Duras’s works deal with the problems typical of the literary studies in the second half of the twentieth century: presence and absence, abandoning chronological order of events, and eroticism. This article analyses her literary technique, including text fragmentation and elliptical style. The author searches for appropriate means of expression, often using silence and loneliness in keeping with her vision of absence attributed to women, kept silent by the dominant culture. Omissions in the narrative emphasise the inexpressible, beyond rational. Absence is meaningful, e.g. the missing photograph in The Lover. Absence also implies a desire to change and to write. Duras shows the problem in the context of a hidden image and an act of creation. The missing word alludes to a search of self. The author grasps complexity and diversity of absence. It is part of the theme, style, and text structure, emphasising the limitations of the language and the powerlessness of the protagonist.
Źródło:
Quêtes littéraires; 2011, 1; 73-86
2084-8099
2657-487X
Pojawia się w:
Quêtes littéraires
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reverse reaction magnetic field in two-wire high current busduct
Autorzy:
Piatek, Z.
Kusiak, D.
Szczegielniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/97489.pdf
Data publikacji:
2010
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
magnetic field
high-current busduct
elliptical field
Opis:
Work has shown how a reverse reaction magnetic field influences the whole magnetic field within the conductor and its vicinity. A description of this is presented in formulae for relative field values and parameters taking into account frequency, conductivity and diameter of the conductor. This has shown the field to be an elliptical field.
Źródło:
Computer Applications in Electrical Engineering; 2010, 8; 53-60
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Overtone Modes in an At-Cut Quartz Trapped-Energy Resonator with Elliptical Electrodes
Autorzy:
Li, Long
Wang, Zhi
Powiązania:
https://bibliotekanauki.pl/articles/1033433.pdf
Data publikacji:
2017-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
quartz
resonator
thickness-shear vibration
elliptical
overtone modes
Opis:
We analyze thickness-shear vibrations of an at-cut quartz plate with elliptical electrodes. The electrodes are essentially optimal in the sense of Mindlin in that they approximately satisfy the criterion for the Bechmann number in every direction. The scalar differential equation derived by Tiersten and Smythe is used which allows us to obtain the overtone modes in addition to the fundamental modes.
Źródło:
Acta Physica Polonica A; 2017, 131, 2; 294-296
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mirror surface finishing of hardened die steel by high-Power ultrasonic elliptical vibration cutting
Autorzy:
Jung, H.
Shamoto, E.
Ueyama, T.
Hamada, S.
Xu, L.
Powiązania:
https://bibliotekanauki.pl/articles/100101.pdf
Data publikacji:
2016
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
elliptical vibration cutting
mirror surface finishing
hardened steel
Opis:
Ultrasonic elliptical vibration cutting has recently been utilized in industry for finishing of various precision parts such as mirror surface finishing and precision micro machining of dies and molds. However, its application has been limited to high-cost ultra-precision machining, where depth of cut is typically in a range from a few micrometers to several tens of micrometers due to power limitation of the vibration device. To expand its application to low-cost mirror surface finishing with ordinary machining facilities, a high-power elliptical vibration device was developed in this research. The elliptical vibration cutting of hardened die steel was examined by applying the developed high-power elliptical vibration device with single crystalline diamond tools. Pick feed was kept to be 0.02 mm to obtain mirror quality surfaces, while depth of cut was increased up to 0.4 mm to verify performance of the high-power elliptical vibration cutting. By analyzing the experimental results, it was clarified that mirror surface finishing of the hardened die steel can be achieved at the large depth of cut with practically acceptable tool life.
Źródło:
Journal of Machine Engineering; 2016, 16, 1; 5-14
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial construction of intersection points of two ellipses
Przestrzenna konstrukcja wspólnych punktów dwóch elips
Autorzy:
Bieliński, A.
Łapińska, C.
Powiązania:
https://bibliotekanauki.pl/articles/973250.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Geometrii i Grafiki Inżynierskiej
Tematy:
ellipse
elliptical cone
affinity
elipsa
stożek eliptyczny
pokrewieństwo
Opis:
A spatial construction of intersection points of two coplanar ellipses, whose major axes lie on the same line and minor axes are equal in length, is given.
Rozpad linii przenikania dwóch walców został tu wykorzystany do wyznaczenia punktów przecięcia się dwóch elips będących w określonym szczególnym położeniu – elipsy leżą w jednej płaszczyźnie, ich duże osie leżą na jednej prostej i częściowo pokrywają się, ich małe osie są równej długości.
Źródło:
Journal Biuletyn of Polish Society for Geometry and Engineering Graphics; 2006, 16; 17-19
1644-9363
Pojawia się w:
Journal Biuletyn of Polish Society for Geometry and Engineering Graphics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Il nome proprio nella struttura del sintagma nominale
The proper name in the structure of the noun phrase
Autorzy:
Pronińska, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/1051028.pdf
Data publikacji:
2013-01-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
nominal groups
proper nouns
elliptical structure
paraphrase
syntagmas
Opis:
The aim of this paper is to analyse Italian nominal groups containing proper nouns. The article discusses two syntagma types with elliptical structure as well as analogical structures where the common and proper nouns are joined by the preposition “di”. The classification and analysis of nominal groups have been carried out on the basis of the function of the proper noun in the syntagma. Two groups of syntagmas have been distinguished: one with the proper noun functioning as a superordinate constituent and one with the proper noun functioning as a modifier. In the former type (where the proper noun is a superordinate constituent), the common noun functions as a descriptive or restrictive appositive. The syntagmas, where the proper noun functions as a modifier, are of particularly diverse character. In such cases, the possibility to paraphrase them by means of the analysed structures constitutes an additional criterion. Consequently, three syntagma types have been distinguished as represented by the following examples: il progetto Leonardo (which does not allow for an alternative synonymous version, *il progetto di Leonardo), il governo Monti (where the prepositional structure il governo di Monti may be used interchangeably) and un quadro di Rubens (which does not allow for an alternative synonymous version with the ellipsis of the preposition “di” *un quadro Rubens).
Źródło:
Studia Romanica Posnaniensia; 2013, 40, 3; 65-79
0137-2475
2084-4158
Pojawia się w:
Studia Romanica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of a Microstrip Filtering Antenna for 4G and 5G Wireless Networks
Autorzy:
Boddu, Ramesh
Deb, Arindam
Roy, Jibendu Sekhar
Powiązania:
https://bibliotekanauki.pl/articles/24200731.pdf
Data publikacji:
2023
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
elliptical microstrip patch antenna
filtering antenna
hairpin bandpass filter
Opis:
The filtering antenna provides both radiation and filtering features and is an important component for the RF front-end of wireless devices. The main function of a filtering antenna is to reject out-of-band signals, thus reducing the interference from adjacent channels. The aim of the present work is to design a 2.6 GHz microstrip filtering antenna for 4G and 5G global mobile services. The filtering antenna is designed using a hairpin bandpass filter integrated with an elliptical microstrip aerial. Good impedance matching is obtained by using appropriate dimensions of the hairpin bandpass filter. The 10 dB return loss bandwidth of the filtering antenna is approx. 5.7%, with the maximum gain for the elliptical filtering antenna of approx. 2.2 dB. Good agreements between the measured and simulated results are obtained for the proposed filtering antenna and the bandwidth covers almost the entire 2.6 GHz band.
Źródło:
Journal of Telecommunications and Information Technology; 2023, 2; 78--83
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transverse energy propagation and interference of elliptical Gaussian beams
Autorzy:
Li, Jin
Tan, Shuang-Cheng
Powiązania:
https://bibliotekanauki.pl/articles/27310096.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
elliptical Gaussian beam
transverse energy flux
interference of EGBs
Opis:
Elliptical Gaussian beam (EGB) has many different physical properties from circular Gaussian beam. In this paper, the transverse energy flux and intensity of one and two coherent EGBs are studied. In our simulation, the transverse energy flux and intensity varying with waist ratio are discussed in detail. It has been found that through increasing the waist ratio, the transverse energy flux after interference would be strengthened significantly. Although the transverse energy flux is much weaker than the longitudinal energy flux, its signal to noise ratio has been verified to be strong enough for detection. Our derivations are still reasonable for another simulation with general experimental parameters. The simulation results are considered to be helpful for some physical experiments using the transverse energy flux of Gaussian beam, such as an important application in electromagnetic response produced by interaction of high-frequency gravitational waves.
Źródło:
Optica Applicata; 2023, 53, 2; 249--260
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of danger of long‑term operated coiled tubing failure
Autorzy:
Vytyaz, Oleg
Hrabovskyi, Roman
Bezaniuk, Yarema
Powiązania:
https://bibliotekanauki.pl/articles/1403643.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
coiled tubing failure
stress intensity
external transverse semi‑elliptical crack
Opis:
The power criterion of the resistance to failure of the metal of coiled tubing (CT) was experimentally evaluated. The conditions are defined under which failure is possible during the operation of CT containing an external semi‑elliptical crack. The interconnection of the critical depths of external semi‑elliptical cracks from the ratio of their semiaxes is established. It is shown that, during the course of operation, the external transverse semi‑elliptical crack with the ratio of semiaxes (a/c)i = 1/2 is the most dangerous for coiled tubing. The experimental and calculation procedures are proposed that give us an opportunity to interpret the results of their technical diagnostics in evaluating the conditions under which the failure of flexible pipes containing outer transverse semi‑elliptical cracks is possible during tripping operations.
Źródło:
AGH Drilling, Oil, Gas; 2020, 37, 4; 5-14
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some geometrical data for the elliptical bearings in artificial robots
Autorzy:
Wierzcholski, K.
Powiązania:
https://bibliotekanauki.pl/articles/245499.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
artificial robots
elliptical slide bearings
comparisons with natural human joints
Opis:
In this paper are considered analogies between elliptical-slide hearing occurring in artificial robots and elliptical natural human joints as well artificial human femoral prosthesis. The comparisons between elliptical human femoral prosthesis and mechanical spherical bearings indicate the advantages implicated from the use ol elliptical slide bearings To prow above statement we describe some remarks referring the elliptical femoral prosthesis and natural human joints. Numerous contemporary studies and experimental measurements regarding the human hip joints indicate, that femoral head is, in fact naturally elliptical. Therefore, the femoral elliptical complete prosthesis as well half prosthesis must be better adapted to the natural hip joint with elliptical bonehead and neck of the femur. The elliptical femoral prosthesis was designed for solving the problem of the relationship between the femoral prosthesis head and the anatomical acetabulum and to minimize the various incidence namely wear protrusion and pain effects. Performed clinical tests indicate that elliptical prosthesis head have the most advanced technological shapes because are based on the anatomy and biomechanics features of the natural human hip joint The same aspects are occurring during functioning the elliptical slide bearing in artificial robots. The mechanics of elliptical-slide bearings can be taken as the appropriate shape in the respect to the operating treatment. Taking into account the hydrodynamic theory of lubrication of cooperating surfaces we must finally find pressure distributions, friction forces, friction coefficients and wear. To prepare this calculations we ought al first determine and calculate the fields of the regions of lubrication on the internal surface lying on the elliptical surfaces and on the external elliptical surface of the sleeve. Surface lubrication regions consist of the sums of spherical triangle, which are lying on the abovementioned surface. In this paper are determined the formulas for the field calculations of elliptical triangle with the three vertexes (points) for coordinates which are foreseen measured.
Źródło:
Journal of KONES; 2014, 21, 2; 295-302
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental and numerical study of the effect of the presence of a geometric discontinuity of variable shape on the tensile strength of an epoxy polymer
Autorzy:
Saada, Khalissa
Amroune, Salah
Zaoui, Moussa
Houari, Amin
Madani, Kouider
Hachaichi, Amina
Powiązania:
https://bibliotekanauki.pl/articles/2204630.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
tensile test
hole-notched
elliptical-notched
XFEM
finite element method
Opis:
The presence of geometric discontinuity in a material reduces considerably its resistance to mechanical stresses, therefore reducing the service life of materials. The analysis of structural behaviour in the presence of geometric discontinuities is important to ensure the proper use, especially if it is regarding a material of weak mechanical properties such as a polymer. The objective of the present work is to analyse the effect of the notch presence of variable geometric shapes on the tensile strength of epoxy-type polymer specimens. A series of tensile tests were carried out on standardised specimens, taking into account the presence or absence of a notch. Each series of tests contains five specimens. Two notch shapes were considered: circular (hole) and elliptical. The experimental results in terms of stress–strain clearly show that the presence of notches reduces considerably the resistance of the material, where the maximum stress for the undamaged specimen was 41.22 MPa and the lowest stress for the elliptical-notched specimen was 11.21 MPa. A numerical analysis by the extended finite element method (XFEM) was undertaken on the same geometric models; in addition, the results in stress–strain form were validated with the experimental results. A remarkable improvement was obtained (generally an error within 0.06%) for strain, maximum stress, Young’s modulus and elongation values. An exponential decrease was noted in the stress, strain, and Young’s modulus in the presence of a notch in the material.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 2; 192--199
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Blank shape optimization on deep drawing of a twin elliptical cup using the reduced basis technique method
Autorzy:
Golshani, M H
Jabbari, A.
Powiązania:
https://bibliotekanauki.pl/articles/957954.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
deep drawing
twin elliptical cup
reduce basic technique
anisotropic
sheet
earring
Opis:
In this project thesis, initial blank shape optimization of a twin elliptical cup to reduce earring phenomenon in anisotropic sheet deep drawing process was studied .The purpose of this study is optimization of initial blank for reduction of the ears height value. The optimization process carried out using finite element method approach, which is coupled with Taguchi design of experiments and reduced basis technique methods. The deep drawing process was simulated in FEM software ABAQUS 6.12. The results of optimization show earring height and, in addition, a number of design variables and time of process can be reduced by using this methods. After optimization process with the proposed method, the maximum reduction of the earring height would be from 21.08 mm to 0.07 mm and also it could be reduced to 0 in some of the directions. The proposed optimization design in this article allows the designers to select the practical basis shapes. This leads to obtain better results at the end of the optimization process, to reduce design variables, and also to prevent repeating the optimization steps for indirect shapes.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 27; 72-77
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of strength properties of functionally graded structures with elliptical stress concentrators
Autorzy:
Stotsko, Z.A.
Kuzin, B.
Kuzin, M.O.
Mechanik, V.A.
Powiązania:
https://bibliotekanauki.pl/articles/2201119.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
elliptical stress concentrators
optimization of hardening modes
power load
computational mechanics
Opis:
Purpose: The purpose of this paper is to elaborate new calculation schemes for evaluating the strength parameters of railway rolling stock parts with non-local properties of surface layers in the presence of elliptical stress concentrators. Design/methodology/approach: Using the proposed approaches of developed mathematical modelling and open software for calculating FEniCS, it were established the most dangerous angles of stress concentrator orientation and the required thickness of the hardened zones of parts, which ensures their minimum softening during operation. Findings: It is shown that for an elliptical stress concentrator with any orientation angle, there is a certain key size of surface hardening thickness, the exceeding the value of which does not have influence on the operational strength of the parts, but rise the price of technological operations. Research limitations/implications: In this paper proposes a method for computation the impact of the orientation of the surface elliptical stress concentrators on the contact strength of parts under conditions of dominate friction power loads. Practical implications: The obtained results were used to set the modes of plasma hardening, which increase the contact strength of railway parts with elliptical stress concentrators. Originality/value: Using the approaches of contact mechanics, mathematical and computer modelling, methods of controlling the contact strength of the parts with the surface elliptical stress concentrators were proposed for the first time.
Źródło:
Archives of Materials Science and Engineering; 2022, 113, 1; 35--41
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microarray-core based circular photonic crystal fiber for high chemical sensing capacity with low confinement loss
Autorzy:
Asaduzzaman, S.
Ahmed, K.
Powiązania:
https://bibliotekanauki.pl/articles/174575.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
circular photonic crystal fiber
confinement loss
elliptical core
chemical sensor
relative sensitivity
Opis:
In this article, a circular photonic crystal fiber based chemical sensor has been presented where core region is designed with an array of elliptical holes. The proposed structure is numerically investigated by using a full vectorial finite element method. From the numerical results, it is observed that introducing an array of elliptical holes helps to obtain the high relative sensitivity and realizes a low confinement loss. In addition, the increase in the value of the diameter of holes in the innermost ring enhances the relative sensitivity. Moreover, the increase in the value of the diameter of holes in the outermost ring reduces the confinement loss. In this work, we have considered an industrially valuable chemical ethanol. Simulation results disclose that the highest relative sensitivity of proposed photonic crystal fiber is 29.25% for ethanol and the confinement loss is 7.68 × 10–7 dB/m at the wavelength 1.5 µm.
Źródło:
Optica Applicata; 2017, 47, 1; 41-49
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical study on dimensions and orientation effect of semi-elliptical cracks in PE100 pipelines
Autorzy:
Zitouni, T. A.
Labed, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2106453.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
rurociąg
pęknięcie
naprężenie
pipeline
PE100
semi-elliptical crack
stress concentration
HDPE
Opis:
The through-thickness crack or surface crack in PE100 pipes subjected to internal pressure represents a serious risk to the structural integrity of HDPE pipes, which has attracted wide attention in modern industry. Although experimental research offers reliable predictions of surface crack influence on pipes, the relatively high cost hinders its application. The numerical simulation, as a cost-effective alternative, has been widely applied to assess stress displacement and strain to the entire pipe structure. This is the initial approach adopted in recent decades. This article provides simulations tests of an uncracked pipe and cracked PE100 pipe under different internal pressure values, with varying each time the dimensions of the crack with 1 mm rate for minor and major radius and 0.5mm rates for the largest contour radius, using ANSYS MECHANICAL STRUCTURAL STATIC for simulation.
Źródło:
International Journal of Applied Mechanics and Engineering; 2021, 26, 3; 198--207
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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