Bibliografías temáticas / Asymmetric couplers

Literatura académica sobre el tema "Asymmetric couplers"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 8 de febrero de 2022

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Artículos de revistas sobre el tema "Asymmetric couplers"

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Sorocki, Jakub, Kamil Staszek, Ilona Piekarz, Krzysztof Wincza y Slawomir Gruszczynski. "Application of RH and LH sections for reduction of coupling coefficients in two-section asymmetric directional couplers". International Journal of Microwave and Wireless Technologies 8, n.º 3 (23 de marzo de 2015): 559–65. http://dx.doi.org/10.1017/s1759078715000410.

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A method allowing for reduction of coupling coefficients required for realization of two-section asymmetrical coupled-line directional couplers has been proposed. It has been shown that by connecting uncoupled left-handed and right-handed transmission lines between two coupled-line sections one can obtain greater design flexibility of the resulting circuit, simultaneously with the coupling reduction in coupled-line sections. Moreover, the proposed circuit features the properties of two-section asymmetric directional couplers offering wide operational bandwidth. The theoretical analysis has been verified by measurements of a 3 dB directional coupler operating at the center frequency f0 = 1.5 GHz having coupling imbalance δC = ±0.4 dB and bandwidth 0.75–2.3 GHz.
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Griffin, R., J. D. Love, P. R. A. Lyons, D. A. Throncraft y S. C. Rashleigh. "Asymmetric multimode couplers". Journal of Lightwave Technology 9, n.º 11 (1991): 1508–17. http://dx.doi.org/10.1109/50.97639.

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Chen, Y. "Asymmetric triple-core couplers". Optical and Quantum Electronics 24, n.º 5 (mayo de 1992): 539–53. http://dx.doi.org/10.1007/bf00619753.

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Chen, Y. "Corrigendum: ?Asymmetric triple-core couplers?" Optical and Quantum Electronics 27, n.º 8 (agosto de 1995): 765. http://dx.doi.org/10.1007/bf00576729.

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Wincza, Krzysztof, Ilona Piekarz y Slawomir Gruszczynski. "Two‐section asymmetric coupled‐line impedance transforming directional couplers". IET Microwaves, Antennas & Propagation 9, n.º 4 (marzo de 2015): 343–50. http://dx.doi.org/10.1049/iet-map.2014.0338.

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Hardy, A., E. Marom y Y. Shama. "Power transfer in asymmetric multiport couplers". Applied Optics 27, n.º 3 (1 de febrero de 1988): 447. http://dx.doi.org/10.1364/ao.27.000447.

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Marcuse, D. "Directional couplers made of nonidentical asymmetric slabs. Part I: Synchronous couplers". Journal of Lightwave Technology 5, n.º 1 (1987): 113–18. http://dx.doi.org/10.1109/jlt.1987.1075399.

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Marcuse, D. "Directional couplers made of nonidentical asymmetric slabs. Part II: Grating-assisted couplers". Journal of Lightwave Technology 5, n.º 2 (1987): 268–73. http://dx.doi.org/10.1109/jlt.1987.1075493.

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Schneider, Vitor Marino y Haroldo T. Hattori. "Wavelength insensitive asymmetric triple mode evolution couplers". Optics Communications 187, n.º 1-3 (enero de 2001): 129–33. http://dx.doi.org/10.1016/s0030-4018(00)01088-9.

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Hong, J. y W. P. Huang. "Asymmetric power coupling in grating-assisted couplers". IEE Proceedings - Optoelectronics 142, n.º 2 (1 de abril de 1995): 103–8. http://dx.doi.org/10.1049/ip-opt:19951546.

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Tesis sobre el tema "Asymmetric couplers"

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Pelegrina, Bonilla Gabriel [Verfasser]. "Asymmetric fused fiber couplers for wavelength- and space-division multiplexing / Gabriel Pelegrina Bonilla". Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2015. http://d-nb.info/1077017774/34.

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Mak, William Chi Keung Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Coupled Solitary Waves in Optical Waveguides". Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 1998. http://handle.unsw.edu.au/1959.4/17494.

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Soliton states in three coupled optical waveguide systems were studied: two linearly coupled waveguides with quadratic nonlinearity, two linearly coupled waveguides with cubic nonlinearity and Bragg gratings, and a quadratic nonlinear waveguide with resonant gratings, which enable three-wave interaction. The methods adopted to tackle the problems were both analytical and numerical. The analytical method mainly made use of the variational approximation. Since no exact analytical method is available to find solutions for the waveguide systems under study, the variational approach was proved to be very useful to find accurate approximations. Numerically, the shooting method and the relaxation method were used. The numerical results verified the results obtained analytically. New asymmetric soliton states were discovered for the coupled quadratically nonlinear waveguides, and for the coupled waveguides with both cubic nonlinearity and Bragg gratings. Stability of the soliton states was studied numerically, using the Beam Propagation Method. Asymmetric couplers with quadratic nonlinearity were also studied. The bifurcation diagrams for the asymmetric couplers were those unfolded from the corresponding diagrams of the symmetric couplers. Novel stable two-soliton bound states due to three-wave interaction were discovered for a quadratically nonlinear waveguide equipped with resonant gratings. Since the coupled optical waveguide systems are controlled by a larger number of parameters than in the corresponding single waveguide, the coupled systems can find a much broader field of applications. This study provides useful background information to support these applications.
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Allan, Sardonia y Mursal Wali. "Vision om jämställdhet - en illision?‏ : En kvalitativ studie om jämställdhet inom samboförhållanden". Thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-25781.

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This qualitative study was conducted to investigate how subordination and superiority emerges in the interaction between heterosexual couples between 20 to 30 years old, without children. Eight semi-structured interviews with four couples have been conducted to provide insight into how subordination and superiority is made in the interaction between the cohabiting couples. All interviews were transcribed and then manually categorized along specific main themes and sub themes. The empirical data were then assayed by a hermeneutic interpretation.   Three previous studies have formed the basis for this study, Det kallas kärlek by Carin Holmberg, the anthology, Jämställdhetens pris and Familjer i tiden by Christine Roman and Helen Peterson. The theoretical framework consists symbolic interactionism, and especially the concept of asymmetrical role-taking and also doing gender. By using these theories, we can gain knowledge about the interaction between the pairs. We have also enlisted the aid of the theory doing gender to gain an understanding of how household distribution of the pairs look like.   The analysis of the empirical material showed that the majority of the women were the initiator in the relationship, with regard to housework and leisure. It was also in the female and male informants' statements that the primary responsibility for the division in terms of housework was on the women. In this way, one can, using the theory of asymmetric role- taking, identify the subordination of the woman in the relationship.
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Coetzee, Nicola. "Asymmetrical S-band coupled resonator filters". Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2287.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.
Due to a more densely packed frequency spectrum, there is an increasing demand for narrow band filters with asymmetrical transfer function characteristics. The resulting coupling matrices contain both positive and negative couplings, cross couplings and individual resonator frequency offsets.
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Isbiliroglu, Yigit D. "Coupled Soil-Structure Interaction Effects of Symmetric and Asymmetric Buildings In Urban Regions". Research Showcase @ CMU, 2013. http://repository.cmu.edu/dissertations/268.

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This thesis deals with the response of idealized building clusters during earthquakes, their effect on the ground motion, and how individual buildings interact with the soil and with each other. We simulate the ground motion during the 1994 Northridge earthquake and focus on the coupled response of multiple simplified symmetric and asymmetric building models located within the San Fernando Valley and the Simi Valley. We use the Domain Reduction Method (DRM) in order to perform these simulations efficiently while recurrently modifying the models without having to redo the entire simulation every time. Numerical results show that the soil-structure interaction (SSI) effects vary with the number and dynamic properties of the buildings, their separation, and the impedance with respect to the soil. These effects appear as: (i) an increased spatial variability of the ground motion; and (ii) significant reductions in the buildings’ base motion at high frequencies, changes in the higher natural frequencies of the building-foundation systems and variations in the roof displacement, with respect to those of the corresponding rigid-base and single SSI models. Torsional coupling of the asymmetric structures combined with SSI effects are also investigated, and results, in comparison with the symmetric structures, are given.
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Kogan, Anya V. y Anya V. Kogan. "Frontal EEG Asymmetry and Communication Patterns During Discussion of Disagreements in Romantic Partners". Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/620878.

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Relationship conflict puts individuals at risk for emotional distress and physical illness. Although many studies in the field have focused on examining cardiovascular, endocrine, and immunological changes associated with relationship conflict, the role of central nervous system processes in relationship functioning remains vastly underexplored. The present study examined frontal electroencephalographic (EEG) alpha asymmetry during discussions of disagreements in romantic partners. Asymmetrical brain activity over the frontal cortex has been conceptualized in the literature as both a trait and state indicator of approach and withdrawal behaviors, with relatively greater left than right frontal activity corresponding to approach behaviors and relatively less left than right frontal activity corresponding to withdrawal behaviors. It was hypothesized that during discussions of disagreements in romantic partners, relatively greater left than right frontal activity would be associated with approach of discussion whereas relatively less left than right frontal EEG asymmetry would be associated with avoidance of discussion. It was also hypothesized that partners would engage in higher level of approach behaviors and exhibit relatively greater left than right frontal activity during discussion of the issue in the relationship that they chose to discuss relative to the issue chosen by their partner. Fifty heterosexual college couples in romantic relationships for at least two months came to the laboratory for a 2.5-hour experimental session, during which self-reported measures were administered, EEG activity was recorded continuously from both partners, and interactions were video-recorded. Participants were asked to engage in 2 discussions of topics on which they disagreed, in counterbalanced order, and each partner was given an opportunity to select an issue to be discussed (Her Issue vs. His Issue). After each discussion, participants were asked to watch a video-recording of their discussions and rate themselves continuously, using a computer mouse, on how much they approached and avoided the discussion. After excluding left-handed participants and data unusable due to equipment failure, data from 25 couples were analyzed. Consistent with the study hypothesis, during discussion of Her Issue, in female partners, greater self-reported rating of approach of discussion was associated with relatively greater left than right frontal activity at F4-F3 and F2-F1 EEG leads. However, there was no significant association between rating of approach of discussion and frontal EEG asymmetry at any of the sites in males during Her Issue, and no effects of rating of approach of discussion on frontal EEG asymmetry at any of the sites during His Issue in either males or females. Consistent with the study hypothesis, both female and male participants evidenced greater rating of approach of discussion during the issue they chose to discuss relative to their partners' issue. Additionally, consistent with the study prediction, males evidenced relatively greater left than right frontal activity measured by the overall asymmetry across 4 regions as well as at F6-F5, F4-F3, and F2-F1 during His Issue relative to Her Issue, and females exhibited greater relative left frontal activity at F8-F7 during Her Issue relative to His Issue. However, there were no significant differences in level of frontal EEG asymmetry measured at other EEG sites. There was a significant positive association between own approach of discussion, as derived from a self-report measure of Demand-Withdraw, and relatively greater left than right frontal activity at F8-F7, F6-F5, and F4-F3 during Her Issue but not His Issue. The current study provided partial support for the association between approach and withdrawal interactions and frontal EEG asymmetry during discussions of disagreements in romantic partners. Future studies should establish whether patterns of changes in frontal EEG activity associated with these interactions have an effect on relationship quality and satisfaction, partners' ability to resolve disagreements, and partners' psychological and physical health.
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Liu, Zhihua. "THE DESIGN AND SYNTHESIS OF NOVEL UNNATURAL AMINO ACIDS AND THE DESIGN AND SYNTHESIS OF PEPTIDES & PEPTIDOMIMETICS CONTAINING UNNATURAL AMINO ACIDS FOR THE STUDY OF G-PROTEIN COUPLED RECEPTORS". Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/204274.

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Nature has gifted peptides as important modulators in the human body, but these types of molecules often have not been favored when we were looking for therapeutic agents. The poor bioavailability, fast degradation and until recent high manufacturing costs of some bioactive peptides lowered their potential usage in the health industry. Under these circumstances, unnatural amino acids were developed as indispensible tools providing enormous support to peptide science. By incorporating proper unnatural amino acids into a peptide or protein, we now can significantly improve peptide's or protein's half-life, cell permeability, bio-distribution, etc. In addition, their potency and receptor/acceptor selectivity could also be enhanced. Site-specific modifications of peptides and proteins under physiological conditions with the use of unnatural amino acids also have been made easier with the advance of biotechnology. Therefore, my research described in this dissertation contributes to the efforts in the development of novel unnatural amino acids. In particular, I have focused on novel methods in the synthesis of anti beta-functionalized gamma,delta-unsaturated amino acids. These amino acids have special interests in peptide chemistry: they can provide conformational constraints to the peptide 3D structures; the beta-functionalization allows the introduction of pharmaceutically interesting side chain groups; and the terminal double bond which is orthogonal to peptide synthesis provides access to further chemical modifications. Two general methodologies for the synthesis of both racemic and optically active anti beta-functionalized gamma,delta--unsaturated amino acids were developed by using the thio-Claisen rearrangement (TCR) reaction. Excellent diastereoselectivies and enantioselectivities were obtained when C2-symmetric chiral auxiliaries were selected to control the stereochemistry outcome. The mechanism and the scope of the TCR reaction were also studied, showing unique advantages in the preparation of these biological interesting amino acids.Another effort of developing angiotensin II type 1 (AT1) receptor biased peptide ligands is also documented in this dissertation. The AT1 receptor is a 7-transmembrane G-protein coupled receptor, which recent researches have shown could be activated through a beta-arrestins only, but G-protein independent, pathway. We synthesized 12 analogs of Sar1,Ile4,Ile8-AngII (SII), and tested them in biological assays, and obtained valuable information for further "perfect" biased ligands design.
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Nsibi, Mohamed Ali. "Asymmetric magnetic domain walls motion in a two-dimensional geometry : causes and effects". Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAY047.

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L’étude du déplacement par le courant électrique des parois de domaine magnétique a généré beaucoup d’intérêt depuis l’observation de leurs importantes vitesses de déplacement dans des multicouches ayant une asymétrie d’inversion verticale (SIA). Cet intérêt se justifie par leur fort potentiel pour de nouvelles applications à basse consommation d’énergie en mémoire cache ou mémoires centrale. L’inversion de symétrie (SIA) induit deux mécanismes dont l’action conjointe permet de déplacer efficacement les parois de domaines. Il s’agit d’une contribution énergétique chirale, appelée l’interaction Dzyaloshinskii-Moriya (DMI), et des couples de spin-orbite (SOT). Ce modèle reste incomplet vu qu’il n’explique pas plusieurs résultats expérimentaux. De plus, une contribution dissipative chirale appelée l’amortissement anisotrope, également induite par la SIA, a été proposée récemment et dont le rôle, sous courant, n’as pas encore été étudié.Le but de ce travail a été d’amener une connaissance détaillée des différentes interactions en jeu dans la dynamique des parois de domaine. Pour cela, j’ai étudié la propagation de parois sous courant dans une géométrie non colinéaire. Cette étude a été réalisée dans des systèmes ayant des SIA différentes (Pt/Co/Pt et Pt/Co/AlOx). Dans cette géométrie, j’ai observé l’asymétrie du déplacement qui illustre la compétition entre les contributions chirales d’énergie et d’amortissement dans des multicouches à faible SIA. Quant aux multicouches à forte SIA, l’asymétrie ne peut être expliquée par l’action conjointe de DMI et SOT même dans le régime à forte mobilité. Une des conséquences de ce type de déplacement est de contribuer à la déviation des bulles de skyrmion en mouvement. Nous avons appelé cet effet l’effet Hall extrinsèque des skyrmions.En mettant en évidence de nouveaux effets induits par SIA, les résultats de cette thèse contribuent à une meilleur compréhension des mécanismes intervenant dans les déplacements des parois et des skyrmions sous courant dans les multicouches magnétiques
The study of the current-induced magnetic domain walls motion has attracted a lot of interest since the report of their large velocities of motion in thin layers with structural inversion asymmetry (SIA). This interest comes from their high potential for low power consumption functionalities in cache and main memories applications. The SIA induces two mechanisms whose combined action allows to drive efficiently the domain walls. The two mechanisms are the chiral energy term, called the Dzyaloshinskii-Moriya interaction (DMI), and the spin-orbit torques (SOT). This model is still incomplete since it does not explain several experimental results. In addition, a chiral dissipation term called the chiral damping, also induced by SIA, has recently been proposed. However, its effect on current-induced domain wall motion has not been studied.The objective of this work was to bring a more detailed understanding of the interactions involved in the domain wall motion. To that end, I have studied the domain wall motion in a non-collinear geometry with respect to the current, in materials with different SIA (Pt/Co/Pt and Pt/Co/AlOx). This motion has been found to be asymmetric. It illustrates the interplay between chiral energy and chiral dissipation in current-induced domain wall motion in weak SIA materials. In large SIA materials, the DMI and SOT model, even in the flow regime of motion, cannot explain this asymmetry. I have also evidenced that the asymmetric non-collinear domain wall motion induces a well-defined deflection of the skyrmion bubbles. This is the first observation of the extrinsic skyrmion Hall effect.The results of this thesis contribute to the understanding of the physical mechanisms behind domain wall and skyrmion motion in ultrathin layers by evidencing supplementary effects from SIA
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Pile, David Fujio Pelleas. "Extremely asymmetrical scattering of waves in periodic Bragg arrays". Queensland University of Technology, 2003. http://eprints.qut.edu.au/15794/.

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This thesis fills in the gaps in the existing theory of wave phenomena in thick diffraction gratings at extreme angles of scattering, i.e. when the scattered wave propagates parallel or almost parallel to the grating boundaries. A consistent theory of a new type of Bragg scattering of bulk and guided optical modes in thick uniform and non-uniform, dissipative and non-dissipative, slanted periodic gratings has been developed. This type of scattering is called extremely asymmetrical scattering (EAS). One of the main distinctive features of EAS is the strong resonant increase of the scattered wave amplitude compared to the amplitude of the incident wave. Several unique combinations of strong resonances shaping a complex multi-resonant pattern of EAS in different types of gratings have been predicted and investigated theoretically and numerically. This includes the prediction of a new resonant wave effect in non-uniform gratings with varying phase – double-resonant EAS, the discovery of several sharp and strong resonances with respect to scattering angle in gratings with the scattered wave propagating almost parallel to the grating boundaries (grazing-angle scattering (GAS)) for the case of second-order scattering, and the prediction of a new type of eigenmode in gratings with second-order scattering (especially in gratings with large amplitude). In addition, several other important practical problems that may be crucial for the experimental observation and application of EAS and GAS have been solved. These are the determination of the tolerance of EAS to small grating imperfections, e.g., fluctuations of the grating amplitude, prediction of unusually high sensitivity of second-order EAS to small variations of mean structural parameters, determination of the effect of weak dissipation on EAS, etc. Physical reasons for the predicted resonances and effects are explained. In particular, the crucial role of the diffractional divergence for EAS and GAS has been revealed, especially for non-uniform gratings. Methods of analysis involve the approximate and rigorous approaches. The approximate method is based on understanding the role of the diffractional divergence in the geometry of EAS and the two-wave approximation (valid for any types of waves). The rigorous approach is based on the rigorous coupled-wave analysis (RCWA) and, in particular, the known enhanced T-matrix algorithm (by Moharam, et al.) that is numerically stable for narrow and wide gratings with arbitrary amplitude (valid only for bulk electromagnetic waves).
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Kurlemann, Nils. "Evaluation of C-C-bond coupling enzymes as reversibly immobilised biocatalysts and for the application in a coupled asymmetric alkene oxidation". Berlin mbv, 2008. http://d-nb.info/990627527/04.

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Libros sobre el tema "Asymmetric couplers"

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Lai, A. Y. H. Design of symmetrical and asymmetrical 10-dB microstrip directional couplers for 1GHz. Manchester: UMIST, 1993.

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Hydén, Lars-Christer. Selves and Interdependent Identities. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199391578.003.0007.

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If stories are the result of joint endeavors, identity may be seen less as an individual phenomenon, but rather as something that is shared between persons. In couples in which one spouse has been diagnosed with dementia, the processes of presenting, sustaining, and negotiating a shared identity are part of a dynamic, complex, and constantly renegotiated relationship between the spouses. This shared identity is an interdependent identity. Interdependent identities are established and negotiated in many ways, but some of the most important resources and sites are probably joint storytelling and joint stories. Telling joint stories implies that the spouses must position themselves as being knowledgeable about each other and their couplehood. Dementia implies a gradual loss of common ground, and this challenges the interdependent identity. The relationship between the spouses will become increasingly asymmetric as the healthy spouse must take responsibility for their shared identity and life.
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Capítulos de libros sobre el tema "Asymmetric couplers"

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Demura, Alexander V., Dominique Gilles y Chantal Stehlé. "On Plasma Statistics of Microfield Gradients and Line Asymmetries". En Strongly Coupled Coulomb Systems, 377–80. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/0-306-47086-1_66.

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Julien, F. H., P. Vagos, P. Boucaud, L. Wu y R. Planel. "Photoinduced Intersubband Transitions in GaAs/AlGaAs Asymmetric Coupled Quantum Wells." En Quantum Well Intersubband Transition Physics and Devices, 345–59. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1144-7_28.

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Förster, Matthias, Eelco Doornbos y Stein Haaland. "The Role of the Upper Atmosphere for Dawn-Dusk Differences in the Coupled Magnetosphere-Ionosphere-Thermosphere System". En Dawn-Dusk Asymmetries in Planetary Plasma Environments, 125–41. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119216346.ch10.

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Levy, M., Yu L. Khait, R. Beserman, A. Sa’ar, V. Thierry-Mieg y R. Planer. "Charge transfer of carriers by interband photoexcitation in asymmetric GaAs/ AlGaAs coupled quantum wells". En Springer Proceedings in Physics, 541–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59484-7_255.

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Zebiri, Chemseddine, Djamel Sayad, Fatiha Benabelaziz, Mohamed Lashab y Ammar Ali. "Impact of Microstrip-Line Defected Ground Plane on Aperture-Coupled Asymmetric DRA for Ultra-Wideband Applications". En Antenna Fundamentals for Legacy Mobile Applications and Beyond, 101–18. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63967-3_5.

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Viswanadha, Karteek y N. S. Raghava. "Design of a Narrow-Band Pass Asymmetric Microstrip Coupled-Line Filter with Distributed Amplifiers at 5.5 GHz for WLAN Applications". En Advances in Intelligent Systems and Computing, 181–87. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1822-1_17.

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Zhang, Zhi-wei, Yi-ming Zhou, Yan Zhang, Yong Guo, Sheng-ce Tao, Ze Li, Qiong Zhang y Jing Cheng. "Sensitive Detection of SARS Coronavirus RNA by a Novel Asymmetric Multiplex Nested RT-PCR Amplification Coupled With Oligonucleotide Microarray Hybridization". En Microarrays in Clinical Diagnostics, 59–78. Totowa, NJ: Humana Press, 2005. http://dx.doi.org/10.1385/1-59259-923-0:59.

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Schindler, Thomas E. "What She Did for Love". En A Hidden Legacy, 90–98. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197531679.003.0011.

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This chapter reviews the marked asymmetry exhibited by the Lederberg collaboration. After 1958 when he won the Noble Prize, Joshua’s career took off while Esther’s sharply declined. For the awards ceremonies in Stockholm, Esther was demoted to Nobel wife. Coincidentally, 1958 was the year that Rosalind Franklin died, which disqualified her for sharing the Nobel Prize for the discovery of the DNA double helix. Franklin’s exceptional X-ray diffraction micrographs of DNA provided the critical evidence for Watson and Crick’s chemical model of DNA. In 1947, Gerty and Carl Cori were the first scientific couple to win the Nobel Prize in Physiology or Medicine. An exceptional complementarity distinguished the Cori relationship. More often, husband and wife collaborations are asymmetric: for six out of the seven other couples who earned one Nobel Prize, the husband alone received the award. Unlike most of their colleagues, B. O. Dodge congratulated both Lederbergs for achieving together the Nobel Prize.
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Cheng, Tinghai, Xiaosong Zhang, Xiaohui Lu, Hengyu Li, Qi Gao y Guangda Qiao. "The Asymmetric Flexure Hinge Structures and the Hybrid Excitation Methods for Piezoelectric Stick-Slip Actuators". En Piezoelectric Actuators - Principles, Design, Experiments and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95536.

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Piezoelectric stick–slip actuators have become viable candidates for precise positioning and precise metering due to simple structure and long stroke. To improve the performances of the piezoelectric stick–slip actuators, our team deeply studies the actuators from both structural designs and driving methods. In terms of structural designs, the trapezoid-type, asymmetrical flexure hinges and mode conversion piezoelectric stick–slip actuators are proposed to improve the velocity and load based on the asymmetric structure; besides, a piezoelectric stick–slip actuator with a coupled asymmetrical flexure hinge mechanism is also developed to achieve the bidirectional motion. In terms of driving methods, a non-resonant mode smooth driving method (SDM) based on ultrasonic friction reduction is first proposed to restrain the backward motion during the rapid contraction stage. Then, a resonant mode SDM is further developed to improve the output performance of the piezoelectric stick–slip actuator. On this basis, the low voltage and symmetry of the SDM are also discussed. Finally, the direction-guidance hybrid method (DGHM) excitation method is presented to achieve superior performance, especially for high speed.
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"Conflict and Control: Symmetry and Asymmetry in Domestic Violence". En Couples in Conflict, 105–14. Routledge, 2001. http://dx.doi.org/10.4324/9781410600134-14.

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Actas de conferencias sobre el tema "Asymmetric couplers"

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Dai, Daoxin y Chenlei Li. "Versatile asymmetric directional couplers on silicon". En SPIE/COS Photonics Asia, editado por Zhiping Zhou y Kazumi Wada. SPIE, 2016. http://dx.doi.org/10.1117/12.2245130.

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Muhs, J. D. "Coupling Limitations Of Asymmetric Multimode Couplers". En O-E/Fibers '87, editado por Vincent J. Tekippe. SPIE, 1988. http://dx.doi.org/10.1117/12.942543.

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Venugopal, Gayatri y Natalia M. Litchinitser. "Asymmetric Positive-Negative Index Nonlinear Waveguide Couplers". En Frontiers in Optics. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/fio.2010.fwg5.

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Valagiannopoulos, Constantinos, Yertay Zhiyenbayev, Yannis Kominis y Vassilios Kovanis. "Basins of Attraction in Asymmetric Photonic Couplers". En 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2019. http://dx.doi.org/10.1109/iceaa.2019.8879312.

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Morrel, W. G., D. R. Moore y V. J. Tekippe. "Characteristics Of Singlemode-To-Multimode Asymmetric Couplers". En O-E/Fiber LASE '88, editado por Paul M. Kopera y Harish R. Sunak. SPIE, 1989. http://dx.doi.org/10.1117/12.959734.

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Lorenz, Lukas, Florian Hanesch, Krzysztof Nieweglowski, Yannic Eiche, Jorg Franke, Gerd-Albert Hoffmann, Ludger Overmeyer y Karlheinz Bock. "3D-Opto-MID for Asymmetric Optical Bus Couplers". En 2020 IEEE 8th Electronics System-Integration Technology Conference (ESTC). IEEE, 2020. http://dx.doi.org/10.1109/estc48849.2020.9229840.

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Ray, Biplab K., Avranil Das y Alok K. Das. "Fused fiber couplers with asymmetric heating by arc discharge". En 2010 Seventh International Conference on Wireless and Optical Communications Networks - (WOCN). IEEE, 2010. http://dx.doi.org/10.1109/wocn.2010.5587347.

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Shi, Wei, Xu Wang, Han Yun, Wen Zhang, Lukas Chrostowski y Nicolas A. F. Jaeger. "Add-Drop Filters in Silicon Grating-Assisted Asymmetric Couplers". En Optical Fiber Communication Conference. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/ofc.2012.oth3d.3.

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Pelegrina-Bonilla, Gabriel, Katharina Hausmann, Henrik Tünnermann, Peter Weßels, Hakan Sayinc, Uwe Morgner, Jörg Neumann y Dietmar Kracht. "Modal Decomposition in Asymmetric Wavelength-Selective Fused Fiber Couplers". En Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/bgpp.2014.jm5a.6.

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Lorenz, Lukas, Lennard Ott, Krzysztof Nieweglowski y Karlheinz Bock. "Influence of Temperature Cycling on Asymmetric Optical Bus Couplers". En 2020 IEEE 8th Electronics System-Integration Technology Conference (ESTC). IEEE, 2020. http://dx.doi.org/10.1109/estc48849.2020.9229684.

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Informes sobre el tema "Asymmetric couplers"

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Harris, J. S. y G. S. Solomon. Coupled Asymmetric Quantum Dot (CAD) Laser. Fort Belvoir, VA: Defense Technical Information Center, mayo de 2004. http://dx.doi.org/10.21236/ada422937.

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Kitazawa, Toshihide, Yoshio Hayashi y Raj Mittra. Asymmetrical Coupled Coplanar-Type Transmission Lines with Anisotropic Substrates. Fort Belvoir, VA: Defense Technical Information Center, febrero de 1986. http://dx.doi.org/10.21236/ada165007.

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Kitazawa, T. y R. Mittra. Quasistatic Characteristics of Asymmetrical and Coupled Coplanar-Type Transmission Lines. Fort Belvoir, VA: Defense Technical Information Center, abril de 1985. http://dx.doi.org/10.21236/ada156929.

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Klain, Kimberly L. Analysis of the Temporal Response of Coupled Asymmetrical Zero-Power Subcritical Bare Metal Reactor Systems. Office of Scientific and Technical Information (OSTI), junio de 2017. http://dx.doi.org/10.2172/1367792.

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