Relevant bibliographies by topics / Perfect rings

Academic literature on the topic 'Perfect rings'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Perfect rings"

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Tuganbaev, A. A. "Bass rings and perfect rings." Russian Mathematical Surveys 51, no. 1 (February 28, 1996): 173–74. http://dx.doi.org/10.1070/rm1996v051n01abeh002767.

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Martinez, Jorge. "Categorically perfect rings." Communications in Algebra 23, no. 10 (January 1995): 3641–51. http://dx.doi.org/10.1080/00927879508825423.

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Năstăsescu, C., L. Dăuş, and B. Torrecillas. "Graded Semiartinian Rings: Graded Perfect Rings." Communications in Algebra 31, no. 9 (January 9, 2003): 4525–31. http://dx.doi.org/10.1081/agb-120022807.

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Udar, Dinesh, R. K. Sharma, and J. B. Srivastava. "Restricted Perfect Group Rings." Communications in Algebra 44, no. 9 (May 19, 2016): 4097–103. http://dx.doi.org/10.1080/00927872.2015.1087018.

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Fuchs, László, and Luigi Salce. "Almost perfect commutative rings." Journal of Pure and Applied Algebra 222, no. 12 (December 2018): 4223–38. http://dx.doi.org/10.1016/j.jpaa.2018.02.029.

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Ánh, P. N., N. V. Loi, and D. V. Thanh. "Perfect rings without identity." Communications in Algebra 19, no. 4 (January 1991): 1069–82. http://dx.doi.org/10.1080/00927879108824190.

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Beattie, Margaret, and Eric Jespers. "On perfect graded rings." Communications in Algebra 19, no. 8 (January 1991): 2363–71. http://dx.doi.org/10.1080/00927879108824264.

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Camillo, Victor P., and Weimin Xue. "On quasi-perfect rings." Communications in Algebra 19, no. 10 (January 1991): 2841–50. http://dx.doi.org/10.1080/00927879108824297.

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Amini, A., B. Amini, M. Ershad, and H. Sharif. "On Generalized Perfect Rings." Communications in Algebra 35, no. 3 (February 27, 2007): 953–63. http://dx.doi.org/10.1080/00927870601115880.

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Jhilal, Abdellatif, and Najib Mahdou. "On Strongn-Perfect Rings." Communications in Algebra 38, no. 3 (March 16, 2010): 1057–65. http://dx.doi.org/10.1080/00927870902828769.

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Dissertations / Theses on the topic "Perfect rings"

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Martínez, Fernández María del Carmen. "Códigos y grafos sobre anillos de enteros complejos." Doctoral thesis, Universidad de Cantabria, 2007. http://hdl.handle.net/10803/10699.

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El objetivo de esta tesis es definir códigos perfectos sobre diferentes espacios de señal multidimensionales. Para resolver este problema, esta memoria presenta una relación original entre las Teorías de Grafos, Números y Códigos. Uno de nuestros principales resultados es la propuesta de una métrica adecuada sobre constelaciones de señal de tipo cuadrático, hexagonal y cuatro-dimensional. Esta métrica es la distancia entre los vértices de una nueva clase de grafos de Cayley definidos sobre diferentes anillos de enteros, en concreto, los enteros de Gauss, Eisenstein-Jacobi y Lipschitz. Así, resolvemos el problema de Teoría de Grafos conocido como el cálculo del conjunto perfecto dominante sobre las familias de grafos definidas en esta memoria. Para cada caso, daremos una condición suficiente para obtener dicho conjunto. La obtención de estos conjuntos de dominación implica directamente la construcción de códigos perfectos sobre los alfabetos que se consideran.Además, se obtendrán algunos resultados de isomorfía y embebimiento de grafos. En particular, se establecerán las relaciones entre grafos circulantes, toroidales y los que se presentan en este trabajo. Más concretamente, se mostrará que siempre existen órdenes para los cuales un grafo Toro puede ser embebido en un grafo Gaussiano, de Esenstein-Jacobi o de Lipschitz. Esto implica que la conocida distancia de Lee es un caso particular de las métricas presentadas en este trabajo.
The aim of this work is to define perfect codes for different multidimensional signal spaces. To solve this problem, this thesis presents an original relationship among the fields of Graph Theory, Number Theory and Coding Theory. One of our main findings is the proposal of a suitable metric over quadratic, hexagonal and four-dimensional constellations of signal points. This metric is the distance among vertices of a new class of Cayley graphs defined over integer rings, namely Gaussian integers, the Eisenstein-Jacobi integers and the Lipschitz integers.A problem in Graph Theory known as the perfect dominating set calculation is solved over the families of graphs defined in this memory. A sufficient condition for obtaining such a set is given for each case. The obtention of these sets of domination directly yields to the construction of perfect codes for the alphabets under consideration. In addition, some isomorphism and graph embedding results are going to be obtained. Specially, the relations between circulant, toroidal and the graphs presented in this work are stated. In particular, there always exist orders for which a Torus graph can be embedded in Gaussian, Eisenstein-Jacobi and Lipschitz graphs. This implies that the well-known Lee distance is a subcase of the metrics presented in this research.
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Nossem, Nicole. "On the perfect closure of a commutative Noetherian ring of positive prime characteristic." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251466.

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Fettig, Jake Alan. "Nothing is Perfect, But Something is Just Right: Redevelopment of Inner-Ring Suburbs - Integrating Ecological Systems into Modern Urban Villages." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/96792.

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The inner-ring suburbs of major metropolitan areas such as Washington, DC are either being redeveloped already or are poised to be redeveloped over the next several decades. The engineered 'gray' infrastructure networks in these areas, largely put in place between 100 and 75 years ago, are aging and reaching the end of their useful life. New developments are being funded by real estate investment trusts and developers and are being welcomed by municipalities and a public that are often genuinely inspired to create the more livable places of the future. Such redevelopments provide a unique opportunity not to just import new 'green' features, but to reimagine the fundamental connections between ecological, human, and non-human systems within the fabric of the larger community in a way that profoundly improves the cognitive experience of a place for the people and wildlife that reside there. The project begins by recognizing this opportunity and posing a question. Through thoughtful design, how can we bring people back into balance with their environment and back into touch with each other? By working with the cultural and built fabric of a place, the project proposes to reintroduce ecological systems and create places that might not be a perfect clean slate but are somehow just right for the people that live there. The project proceeds first by developing an understanding of the overall ecological context for each of four primary development corridors in Virginia, west of Washington, D.C. across the Potomac River. Then, key intersections between stream systems and the development corridors are identified and assessed to determine (a) whether any existing landscape framework surrounding the stream feature is in place and (b) whether the amenities necessary to support a walkable Urban Village center are present within a half mile in each direction along the route. The project proposes a design for revealing a continuous flow stream channel currently piped underground and creating integrated stormwater detention basins along the historic stream channel path at the headwaters of Spout Run in northern Arlington County Virginia. Stormwater mains downstream from the headwaters have already been deemed below capacity for the unprecedentedly intense storms that have become an annual occurrence. Here, the major transportation and development corridor, Route 29 (Lee Highway), just across the Potomac River west of Washington D.C, crosses Glebe Road and a unique geological formation, dubbed for this thesis as the 'Headwaters Plateau'. It is an intersection between historically significant transportation routes as well as a unique intersection between landscape and the built environment. Around the Headwaters Plateau, not just Spout Run but the waters of four other streams begin their path to the Potomac River, flowing through numerous Arlington County neighborhoods along the way. As redevelopment plans take shape for the Lee Highway corridor through northern Arlington County, this thesis proposes the unique intersection between the Headwaters Plateau at Spout Run Gap along Route 29 as the site for the core of a modern Urban Village, with the Plateau and the Spout Run Headwaters Channel as the landscape framework around which the redeveloping Village should be built.
Master of Landscape Architecture
This thesis proposes a design for revealing a continuous flow stream channel currently piped underground and creating integrated stormwater detention basins along the historic stream channel path at the headwaters of Spout Run in northern Arlington County, Virginia. Stormwater mains downstream from the headwaters have already been deemed below capacity for the unprecedentedly intense storms that have become an annual occurrence. Here, the major transportation and development corridor, Route 29 (Lee Highway), just across the Potomac River west of Washington D.C, crosses Glebe Road and a unique geological formation, dubbed for the purpose of this thesis as the 'Headwaters Plateau'. It is an intersection between historically significant transportation routes as well as a unique intersection between landscape and the built environment. Around the Headwaters Plateau, not just Spout Run but the waters of four other streams begin their path to the Potomac River, flowing through numerous Arlington County neighborhoods along the way. As redevelopment plans take shape for the Lee Highway corridor through northern Arlington County, this thesis proposes the unique intersection between the Headwaters Plateau at Spout Run Gap along Route 29 as the site for the core of a modern Urban Village, with the Plateau and the Spout Run Headwaters Channel as the landscape framework around which the redeveloping Village should be built. Through design, this thesis is an investigation of the potential integration of ecological systems such as stream hydrology into the design of modern 'Urban Villages' with the intent to create impactful individual experiences that provide a shared sense of connection within the community to its surrounding landscape. Throughout the country, redevelopment plans are focused on creating increased-density 'mixed-use' communities within existing urban and suburban areas - often called Urban Villages in the lexicon of the New Urbanism planning theory. This represents a move away from the predominant approach of separation of land use zoning practices. Such redevelopments provide a unique opportunity to not only import new 'green' features, but to reimagine the fundamental connections between ecological, human, and non-human systems within the fabric of the larger community in a way that profoundly improves the cognitive experience of a place for the people and wildlife that reside there.
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Wang, Xianbing, and Yong Meng Teo. "Global Data Computation in a Dedicated Chordal Ring." 2005. http://hdl.handle.net/1721.1/30247.

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Existing Global Data Computation (GDC) protocols for asynchronous systems are designed for fully connected networks. In this paper, we discuss GDC in a dedicated asynchronous chordal ring, a type of un-fully connected networks. The virtual links approach, which constructs t+1 (tSingapore-MIT Alliance (SMA)
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Lin, Hao-Tsun, and 林浩存. "Isotropic Perfect Absorber Using Vertical Nano Split-Ring Resonators." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/83859536841019986374.

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碩士
國立臺灣大學
應用物理研究所
104
Metamaterials are artificial materials which cannot be found in nature. The properties of these materials are not from the component but from the artificial structures in subwavelength scale. In this thesis, we use ebeam lithography to make the three dimensional erected split-ring resonators, and fabricate metamaterial perfect absorber by the three dimensional erected split-ring resonators. We adopt the metal-insulator-metal(MIM) structure. The button layer is a gold layer as a mirror, and the middle layer is ZnS-SiO2. The top layer adopts erected split-ring resonators to serve as the structure interacting with the incident light. The benefit of using the erected split-ring resonators is that the erected split-ring resonators can coupling the energy of electric and magnetic field at the same time which can enhance the absorption. Then we arranged the erected split-ring resonators in cross-shaped which makes this structure isotropic when direct illumination. Also, the electromagnetic response still keeps in a great absorption under both TM- and TE-polarized illumination even through the angle of incidence is greater than 60 degrees.
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Cheng, Ke-Chiao, and 鄭可喬. "To Understand George Bernard Shaw's Reading of The Ring by Examining The Perfect Wagnerite." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5zgpmh.

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碩士
國立臺灣師範大學
音樂學系
106
George Bernard Shaw was, and is still regarded as not only a renowned literatus and a playwright, but also a prolific writer of music discourses. His book on Wagner’s Der Ring des Nibelungen, The Perfect Wagnerite, is full of profound and abundant details, making itself a crucial source to understand this colossal work of Wagner. With his rich knowledge in music and works of other literature, Shaw understood and thought about The Ring deeply with his unique style; his writing is smooth and humorous, on the other hand, how he wrote it and what he chose to talk about is thought-provoking. The main idea of this thesis is divided into two parts: “Shaw as a reader” and “Shaw as an author”. In the “Shaw as a reader” part, Shaw’s understanding of The Ring will be discussed, and then in the “Shaw as an author” part, some of the most valuable but potentially overlooked details will be dug out from the details of the author’s writing. Hopefully, this thesis will sort out Shaw’s aesthetic experience from “accepting a work” to “creating a work” and will provide a way to understand The Perfect Wagnerite, and thus to understand The Ring.
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Books on the topic "Perfect rings"

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The perfect ring. Kansas City: Andrews and McMeel, 1993.

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Becker, Joyce Scardina. Countdown to your perfect wedding: From engagement ring to honeymoon, a week-by-week guide to planning the happiest day of your life. New York: St. Martin's Griffin, 2006.

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Topology and geometry in dimension three: Triangulations, invariants, and geometric structures : conference in honor of William Jaco's 70th birthday, June 4-6, 2010, Oklahoma State University, Stillwater, OK. Providence, R.I: American Mathematical Society, 2011.

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Georgic, Jennifer. Lord of the Rings Food Recipes : the Perfect Lord of the Rings Party Diet: Recipe Book. Independently Published, 2021.

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Stetsons, Spring and Wedding Rings: Rocky Mountain Courtship / Courting Miss Perfect / Courted by the Cowboy. Harlequin Mills & Boon, Limited, 2011.

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Grey, Ga;dalf The. Lord of the Rings Coloring Book: Perfect Gift for LOTR Adults Fan with Amazing Artwork. Independently Published, 2019.

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lsgw and L. S. Goulet. Our Wedding: Everything you need to help you plan the perfect wedding, paperback, color interior, matte cover, wedding rings. Independently published, 2019.

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Lsgw and L. S. Goulet. Our Wedding: Everything You Need to Help You Plan the Perfect Wedding, Paperback, Matte Cover, B&W Interior, Silver Wedding Rings. Independently Published, 2019.

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Design, Aldona. Guest Book: Your Perfect Day Wedding Anniversary Guest Book - Memory Signature Message Book - Engagement Party - White Paper with Gold Rings and Birds. Independently Published, 2019.

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Luther, Lex. Lord of the Rings Coloring Book: Over 50 Coloring Pages of LOTR to Inspire Creativity and Relaxation. a Perfect Gift for Adults Fan. Independently Published, 2019.

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Book chapters on the topic "Perfect rings"

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Lam, T. Y. "Perfect and Semiperfect Rings." In Graduate Texts in Mathematics, 335–69. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4419-8616-0_8.

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Lam, T. Y. "Perfect and Semiperfect Rings." In Exercises in Classical Ring Theory, 257–75. New York, NY: Springer New York, 1995. http://dx.doi.org/10.1007/978-1-4757-3987-9_8.

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Lam, T. Y. "Perfect and Semiperfect Rings." In Graduate Texts in Mathematics, 345–80. New York, NY: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-0406-7_8.

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Teply, Mark L. "Right Hereditary, Right Perfect Rings are Semiprimary." In Advances in Ring Theory, 313–16. Boston, MA: Birkhäuser Boston, 1997. http://dx.doi.org/10.1007/978-1-4612-1978-1_25.

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Azumaya, Goro. "Locally split submodules and modules with perfect endomorphism rings." In Lecture Notes in Mathematics, 1–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/bfb0091245.

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Khuri, Soumaya Makdissi. "Modules with regular, perfect, noetherian or artinian endomorphism rings." In Lecture Notes in Mathematics, 7–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/bfb0091246.

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McKinley, Arnold. "Thin-Wire Perfectly Conducting Loops and Rings." In The Analytical Foundations of Loop Antennas and Nano-Scaled Rings, 69–91. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5893-7_3.

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Yde, Matthew. "Utopia in Flames: Shaw and Wagner’s Ring: The Perfect Wagnerite." In Bernard Shaw and Totalitarianism, 46–65. London: Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137330208_3.

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Hill, Greg. "The Ring of Gyges, the Perfect Shield, and the Veil of Ignorance." In Rousseau’s Theory of Human Association, 127–53. New York: Palgrave Macmillan US, 2006. http://dx.doi.org/10.1057/9781403983046_5.

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Krzywiecki, Łukasz, Małgorzata Sulkowska, and Filip Zagórski. "Hierarchical Ring Signatures Revisited – Unconditionally and Perfectly Anonymous Schnorr Version." In Security, Privacy, and Applied Cryptography Engineering, 329–46. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24126-5_19.

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Conference papers on the topic "Perfect rings"

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Quilles, Catia, and Reginaldo Palazzo. "Quasi-perfect geometrically uniform codes derived from graphs over Gaussian integer rings." In 2010 IEEE International Symposium on Information Theory - ISIT. IEEE, 2010. http://dx.doi.org/10.1109/isit.2010.5513673.

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Giacomelli, Enzo, Nicola Campo, Simone Pratesi, Giovanni Zonfrillo, and Andrea Meneghin. "Evaluation of Loads on a Hypercompressor Plunger in Service Conditions." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71294.

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The plunger is a very critical component for the operation of hyper-compressors. To achieve long packing ring life it is necessary to select very hard materials for the plunger. As a consequence of the special materials used, the plunger is very brittle. To guarantee safe operation it is necessary to have perfect alignment to avoid bending stress that could cause plunger failure. The effects of the whole system, including packing rings and supporting crossheads were analyzed using a multi-body dynamic simulation to determine the maximum loads acting on the plunger. This analysis verified the viability of this critical component during abnormal machine operating conditions.
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Li, Huiyu, Hua Li, and Hornsen Tzou. "Neural-Network Vibration Control of Rings With Light-Activated Shape Memory Polymer Actuators." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47019.

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The light-activated shape memory polymer (LaSMP) is sensitive to ultraviolet light with specific wavelength. It is featured with dynamic stiffness. In this study, LaSMP is used to control the vibration of thin ring shells induced by external loading. Firstly the variation of LaSMP’s Young’s modulus is modeled. The mathematical model reflects the influence of light intensity, the decay coefficient and thickness of LaSMP. Besides, the model is suitable for LaSMPs with different reaction orders. Then, with Lamé parameters and the radii of rings the governing equations of the flexible ring laminated with LaSMP actuators are established. Love operators of LaSMP actuators are derived. Based on the mode expansion method, the modal forces of external loading and LaSMP actuators are given. The modal participation factors are analyzed with the modal forces. As the variation of Young’s modulus to the light intensity is nonlinear, the control effect of LaSMP actuators to common harmonic excitation is not perfect. Because the neural network control is effective to identify complex models, it is introduced to adjust the profile of light intensity. In the case study, the model of LaSMP’s Young’s modulus is validated with the experimental data. Then the forced harmonic responses of the ring are studied. For the mode n=2, the modal participation factor is reduced by 47.7% with the control of LaSMP actuator. To further enhance the control effect, the phase shift method is applied. With π/6 phase shift, the modal participation factor is reduced by 80.8%. With the neural network control method, the modal participation factor is cut down by 98.1%. The study shows that LaSMP actuator provides a new choice to control the forced vibration of flexible rings. It is also possible to apply LaSMP actuator to vibration control of other thin shell structures.
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Delaet, M., and C. Coddet. "Thermal Spray Coating Developments for Piston Rings to be Used in Tomorrow’s Duty Engines." In ITSC 1997, edited by C. C. Berndt. ASM International, 1997. http://dx.doi.org/10.31399/asm.cp.itsc1997p0001.

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Abstract Plasma arc sprayed coatings are largely developed in Perfect Circle Europe because of the wide range of coating materials which ensure numerous tribological properties. Spraying parameters are of great importance in improving the coating structure and therefore the coating wear, adhesive, cohesive and corrosive resistances. The utilized plasma gas is first studied; designed experiments are then achieved to optimize the all spraying parameters. More than the spraying parameters, the powder formulation has a major influence on the coating tribological properties. Several powders are studied with the aim to reduce the ring-liner system wear. Tests on idealized samples coupled with engine tests help us to characterize the tribological behaviour of some molybdenum based coatings.
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Scholz, P., U. Kerst, C. Boit, C. C. Tsao, and T. Lundquist. "A Versatile Design of Solid Immersion Lenses in Bulk Silicon Using Focused Ion Beam Techniques." In ISTFA 2009. ASM International, 2009. http://dx.doi.org/10.31399/asm.cp.istfa2009p0119.

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Abstract The topic of this work is the sequential use of Solid Immersion Lenses (SILs), created in bulk silicon in less than 20 minutes of processing time, using a focused ion beam and a bitmap milling process. Fibbed SILs can be removed by polishing, and the silicon back surface resumes a perfect planar shape for further backside analysis or the creation of more SILs. The influence of the progressively thinner sample thickness on the magnification of the SIL was analyzed. As fibbed SILs in this work are about 1.4 µm thick and have an additional magnification of 2.4, a second process after removal has been found to decrease magnification not more than 20%. The presence of interference rings in the SIL image could be almost completely removed by anti-reflective coating. Photon emission microscopy, performed using fibbed SILs, allowed to clearly distinguish between sources that were separated by 240 nm wide structures.
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Shankhwar, Nishant, Ritika Ranga, Yogita Kalra, and Ravindra K. Sinha. "Dielectric ring based metamaterial perfect reflector." In Metamaterials, Metadevices, and Metasystems 2019, edited by Nader Engheta, Mikhail A. Noginov, and Nikolay I. Zheludev. SPIE, 2019. http://dx.doi.org/10.1117/12.2529033.

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Grmek, Damir. "Improving the Integrity of Lap Joint Flange Connections." In 2008 7th International Pipeline Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ipc2008-64383.

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Bolted connections where proper alignment is critical usually require the use of lap joint flanges. The ability of lap joint flanges to swivel around the pipe enables the connection to be installed with no rotational stress applied to the attached piping and equipment. The majority of lap joint flanges on the Enbridge Pipelines system are ANSI 600 and are located at pump nozzles. In these applications, Enbridge Pipelines’ standard specifies the use of spiral wound gaskets with inner rings. Problems with lap joint flanges typically occur at the time of assembly. There are a number of factors that contribute to the challenges of properly seating a gasket in these joints: • Since the raised face is separate from the flange, there is some flex in the face that could unevenly load the gasket; • The flange may not be concentric with the raised face that is welded to the pipe because of clearance between the pipe OD and the flange ID. Using the bolt holes to align the flange does not necessarily ensure that the raised faces are aligned; • Line up pins are not recommended on pump nozzles in order to ensure that no stress is placed on the pump. Consequently, the bottom studs are used to center the gasket and it is possible for the gasket to sit in the stud threads, increasing the misalignment between the gasket windings and the flange raised faces; • Specified torque values for a given flange size may be too high for use in a lap joint application. The perfect bolt alignment in these joints may result in a lower nut factor and subsequently a higher bolt stress for a given torque value. All of these factors can cause damage to the windings on a spiral wound gasket, eventually resulting in a leak. This paper will discuss ways to mitigate these issues.
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Gupta, Shulabh. "Active micro-ring resonators as compact perfect dispersive devices." In 2016 Photonics North (PN). IEEE, 2016. http://dx.doi.org/10.1109/pn.2016.7537979.

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Rothenberg, Jacob M., Christine P. Chen, Jason J. Ackert, Asif Ahmed, Andrew P. Knights, Richard R. Grote, Keren Bergman, and Richard M. Osgood. "Coherent Perfect Absorption in a Silicon Photonic Ring Resonator." In Frontiers in Optics. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/fio.2015.fw3e.3.

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Beverini, N., G. Carelli, E. Maccioni, D. Cuccato, A. Ortolan, R. Santagata, S. Solimeno, et al. "Toward the “perfect square” ring laser gyroscope." In 2014 Fotonica AEIT Italian Conference on Photonics Technologies (Fotonica AEIT). IEEE, 2014. http://dx.doi.org/10.1109/fotonica.2014.6843890.

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