Relevant bibliographies by topics / Heptagon

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Heptagon'

Author: Grafiati
Published: 28 June 2021
Last updated: 29 July 2025

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Journal articles on the topic "Heptagon"

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Sánchez-Bernabe, Francisco J. "Study of fullerenes C126 and C156 with seven heptagon rings." Journal of Physics: Conference Series 2321, no. 1 (2022): 012028. http://dx.doi.org/10.1088/1742-6596/2321/1/012028.

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Abstract We consider fullerenes C126 and C156, both of them with seven heptagon rings. The first of them is C126 with 19 pentagons, and 39 hexagons. It is also considered C156 with 19 pentagons, and 54 hexagons. From previous work, a couple of fullerenes, C130 and C134, are mentioned for comparative reasons. These two fullerenes also contain seven heptagon rings. Fullerene C130 is constituted of 19 pentagons, and 41 hexagons. On the other hand, fullerene C134 has 19 pentagons, and 43 hexagons. Therefore, the four fullerenes considered, with seven heptagon rings, also share the property that, t
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Meunier, V., and P. Lambin. "Propriétés structurales des jonctions de nanotubes de carbone." Canadian Journal of Physics 77, no. 9 (2000): 667–75. http://dx.doi.org/10.1139/p99-004.

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The junction between two different nanotubes can be realized by the simple insertion of a pentagon-heptagon pair defect while preserving the triple coordination of each C atom. This insertion bends the structure to an angle depending on the distance between the pentagonand heptagon. The atomic structure of several of these junctions was optimized with the help of empirical potentials, the nanotubes on both sides of the junctions being considered as infinitely long. Local densities of σ + π electronic states were evaluated in the interfacial regions from a tight-binding Hamiltonian. From there,
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Zukrianto, Zukrianto, Rima Erfianti, Rahmawati Rahmawati, and Ade Novia Rahma Ade Novia Rahma. "Pengembangan Teorema Ceva pada Heptagon Nonkonveks." Jurnal Sains Matematika dan Statistika 7, no. 1 (2021): 20. http://dx.doi.org/10.24014/jsms.v7i1.11579.

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Teorema Ceva pada dasarnya merupakan suatu teorema yang berlaku pada segitiga. Dalam penelitian ini teorema Ceva dikembangkan pada heptagon nonkonveks dalam dua kasus. Kasus satu menunjukkan kekonkurenan tujuh buah garis di dalam heptagon nonkonveks dan kasus dua menunjukkan kekonkurenan tujuh buah garis di luar heptagon nonkonveks. Proses ini dimulai dengan pengkontruksian heptagon nonkonveks menggunakan aplikasi Geogebra, selanjutnya pembuktian teorema Ceva dilakukan dengan menggunakan prinsip perbandingan luas pada segitiga. Hasil yang diperoleh dari penelitian ini adalah eksistensi tujuh b
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Ruhland, Helmut. "Unified Constructions of the Regular Heptagon and Triskaidecagon." Computer tools in education, no. 1 (April 20, 2025): 27–32. https://doi.org/10.32603/2071-2340-2025-1-27-32.

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Constructions of regular heptagon and triskaidecagon by trisection of an angle are well known. An elegant construction of the heptagon by S. Adlaj shows a 3-fold symmetry related to a Galois group. Based on the latter construction, in this article one more for the heptagon and two more for the triskaidecagon are presented, all using angle trisection.
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Porter, A. F. "THE REGULAR HEPTAGON." Survey Review 31, no. 245 (1992): 409–12. http://dx.doi.org/10.1179/sre.1992.31.245.409.

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Douce, J. L. "THE REGULAR HEPTAGON." Survey Review 32, no. 248 (1993): 121. http://dx.doi.org/10.1179/sre.1993.32.248.121.

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Belitsky, A. V. "Resummed tree heptagon." Nuclear Physics B 929 (April 2018): 113–36. http://dx.doi.org/10.1016/j.nuclphysb.2018.01.031.

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Prianasari, Eka Ningrum, and Isnaini Rosyida. "Nilai Ketakteraturan Sisi Total pada Graf Rantai Heptagon dan Graf Rantai Heptagon dengan Dua Sisi Pendant." Unnes Journal of Mathematics 11, no. 1 (2022): 38–43. http://dx.doi.org/10.15294/ujm.v11i1.35333.

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Diketahui sebuah graf G dengan himpunan titik tak kosong V(G) dan himpunan sisi E(G). Suatu pelabelan dikatakan pelabelan-k total tak teratur sisi jika setiap dua sisi berbeda memenuhi bobot sisi yang berbeda, dengan bobot suatu sisi adalah jumlah dari label sisi tersebut ditambah jumlah semua titik yang terkait pada sisi tersebut. Nilai ketakteraturan sisi total (total edge irregularity strength) graf G, yang dinotasikan dengan tes(G) adalah minimum k atau label terbesar minimum yang digunakan untuk melabeli titik dan sisi graf G dengan pelabelan total tak teratur sisi. Pada artikel ini, penu
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Prayogi, Gusti Dian, and Widiar Onny Kurniawan. "The Influence of the Fraud Heptagon on Fraud Levels in Indonesian State-Owned Enterprises: The Moderating Role of the Whistleblowing System." Majalah Ekonomi 31, no. 1 (2025): 49–59. https://doi.org/10.36456/majeko.vol31.no1.a10143.

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This study aims to explore the correlation between the theoretical construct of the Fraud Heptagon and the intensity of fraudulent practices in Indonesian State-Owned Enterprises (SOEs), as well as the moderating role of the whistleblowing system in this relationship. The Fraud Heptagon is a concept that expands upon previous theories, such as the Fraud Triangle and Fraud Diamond, by incorporating additional elements that influence fraud occurrence, namely financial pressure, opportunity, rationalization, capability, arrogance, and greed. The whistleblowing system is identified as a control me
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White, Tony. "The Life Script Heptagon." International Journal of Transactional Analysis Research & Practice 13, no. 1 (2022): 53–61. http://dx.doi.org/10.29044/v13i1p53.

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The life script heptagon, developed by the author, is described to show how seven elements, all seven aspects of human personality – behaviour, feelings, thoughts, body holding patterns, habits, beliefs and attitudes, and early decisions – fit together geometrically so that they reinforce and support each other and make it hard for people to change their life scripts. These elements are then related to the ways in which different psychotherapies tend to work with them, and explanations are given of why the geometric nature of the model means that several aspects need to change because otherwis
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Dissertations / Theses on the topic "Heptagon"

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Liu, Xiaoyang. "Generation of Heptagon-Containing Fullerene Structures by Computational Methods." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/83480.

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Since the discovery three decades ago, fullerenes as well as metallofullerenes have been extensively investigated. However, almost all known fullerenes follow the classical definition, that is, classic fullerenes are comprised of only pentagons and hexagons. Nowadays, more and more evidence, from both theoretical and experimental studies, suggests that non-classical fullerenes, especially heptagon-containing fullerenes, are important as intermediates in fullerene formation mechanisms. To obtain fundamental understandings of fullerenes and their formation mechanisms, new systematic studies shou
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Gérard, Léonard. "Programmer le parallélisme avec des futures en Heptagon un langage synchrone flot de données et étude des réseaux de Kahn en vue d'une compilation synchrone." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00929932.

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Les langages synchrones ont été fondés pour modéliser et implémenter les systèmes réactifs temps-réels critiques. Avec la complexité toujours croissante des systèmes contrôlés, la vitesse d'exécution devient un critère important. Nous sommes donc à la recherche d'une exécution parallèle, combinant efficacité et sûreté.Les langages synchrones ont toujours intégré la notion de parallélisme, mais ce, pour l'expressivité de la modélisation. Leurs compilations visent principalement les circuits ou la génération de code séquentiel. Tous ont une sémantique formelle, qui rend possible la distribution
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Gérard, Léonard. "Programmer le parallélisme avec des futures en Heptagon un langage synchrone flot de données et étude des réseaux de Kahn en vue d’une compilation synchrone." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112202/document.

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Les langages synchrones ont été fondés pour modéliser et implémenter les systèmes réactifs temps-réels critiques. Avec la complexité toujours croissante des systèmes contrôlés, la vitesse d'exécution devient un critère important. Nous sommes donc à la recherche d'une exécution parallèle, combinant efficacité et sûreté.Les langages synchrones ont toujours intégré la notion de parallélisme, mais ce, pour l'expressivité de la modélisation. Leurs compilations visent principalement les circuits ou la génération de code séquentiel. Tous ont une sémantique formelle, qui rend possible la distribution
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Hanousek, Ondřej. "Nová synagoga Frýdek-Místek." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2021. http://www.nusl.cz/ntk/nusl-443685.

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The thesis deals with a hypothetical project of a new building complex of a synagogue, a kosher restaurant and a community centre at the location of the former synagogue in Frýdek. The proposal includes a memorial of the destroyed synagogue and Jewish community, as well as the incorporation of the complex into the urban structure of the city. The project proposes a building distributed into three volumes. The restaurant and community centre are connected by an underground garage within a U-shaped floor plan. The buildings are axially symmetrical, white, with expressive rhythmical perforations
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Liu, Junzhi, Shantanu Mishra, Carlo A. Pignedoli, et al. "Open-Shell Nonbenzenoid Nanographenes Containing Two Pairs of Pentagonal and Heptagonal Rings." ACS Publications, 2019. https://tud.qucosa.de/id/qucosa%3A37009.

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Nonbenzenoid carbocyclic rings are postulated to serve as important structural elements toward tuning the chemical and electronic properties of extended polycyclic aromatic hydrocarbons (PAHs, or namely nanographenes), necessitating a rational and atomically precise synthetic approach toward their fabrication. Here, using a combined bottom-up in-solution and on-surface synthetic approach, we report the synthesis of nonbenzenoid open-shell nanographenes containing two pairs of embedded pentagonal and heptagonal rings. Extensive characterization of the resultant nanographene in solution shows a
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Barsi, Fabrício Ventura. "Isomerização do n-heptano sobre catalisadores bifuncionais Pt-Ni suportados em zeólitas BEA e FAU." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/3879.

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Made available in DSpace on 2016-06-02T19:55:26Z (GMT). No. of bitstreams: 1 2782.pdf: 4553627 bytes, checksum: f73cfcf1828cc709aa70c31e60f46159 (MD5) Previous issue date: 2009-12-09<br>Financiadora de Estudos e Projetos<br>The objective of this paper was to study the influence of metal loading content on the properties of bimetallic catalysts, formed by Pt and Ni, supported on zeolite HUSY and HBEA. Another objective of this study was to infer possible mechanisms and reaction pathways. In this sense, were compared catalysts containing different contents and percentage of metals in the isome
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Ferreira, Márcio Luís Oliveira. "Avaliação de catalisadores do tipo Pt-Re-Au/Al2 O3 na reforma de n-heptano." reponame:Repositório Institucional da UFBA, 2011. http://www.repositorio.ufba.br/ri/handle/ri/11169.

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127f.<br>Submitted by Ana Hilda Fonseca (anahilda@ufba.br) on 2013-04-04T14:19:14Z No. of bitstreams: 11 SUMÁRIO.pdf: 387928 bytes, checksum: 97572aa6a0c6f9e1603c58e13445c4b0 (MD5) SUGESTÕES PARA TRABALHOS FUTUROS.pdf: 185948 bytes, checksum: a4cf4835add63bfe3410965e6ed99060 (MD5) REVISÃO BIBLIOGRÁFICA.pdf: 613262 bytes, checksum: 899ef505497cce7f776561ff2903c41b (MD5) RESUMO.pdf: 90910 bytes, checksum: e6ff997e49241b2db759eb772d78d856 (MD5) RESULTADOS E DISCUSSÃO.pdf: 1410244 bytes, checksum: 0fbf4fad7b7711daf673de9304838f4d (MD5) REFERÊNCIAS BIBLIOGRÁFICAS.pdf: 300838 bytes, checksum: 629071
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Zanoni, Élton Torres. "Avaliação de nanoestruturas de sílica na liberação controlada de feromônios repelentes de abelha." reponame:Repositório Institucional da UNESC, 2018. http://repositorio.unesc.net/handle/1/5856.

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Dissertação de Mestrado, apresentada ao Programa de Pós-Graduação em Ciência e Engenharia de Materiais da Universidade do Extremo Sul Catarinense, UNESC, para a obtenção do título de Mestre em Ciência e Engenharia de Materiais.<br>Nanomateriais têm sido empregados em diversas funções nas mais variadas áreas do conhecimento. Um campo de aplicação que ganha espaço nos últimos anos é o uso da nanotecnologia na agricultura, visando amenizar os impactos do avanço populacional e a escassez dos recursos naturais atuando no controle de pragas e gerenciamento de agroquímicos. Neste estudo foram avaliad
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Weihofen, Wilhelm. "Strukturelle Basis für die kooperative Bindung des o-Repressors [Omega-Repressors] an direkte und invertierte Wiederholungen von DNA-Heptaden." [S.l.] : [s.n.], 2005. http://www.diss.fu-berlin.de/2005/254/index.html.

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BESSON, ISABELLE. "Etude du comportement des spores de penicillium roquefortii au cours de la bioconversion de l'acide octanoique en heptanone-2." Clermont-Ferrand 2, 1993. http://www.theses.fr/1993CLF21537.

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Une etude bibliographique fait le point sur les diverses possibilites d'utilisation des bioconversions et des biotransformations pour l'obtention de produits naturels, et sur les perspectives de mise en uvre de ces techniques au niveau industriel. Apres un rappel concernant les connaissances actuelles dans le domaine de la production d'arome de fromage bleu, l'analyse du comportement des spores de penicillium roquefortii au cours de la synthese d'heptanone-2 a partir de l'acide octanoique est envisagee. La methodologie utilisee comporte deux volets; le premier s'interesse a la caracterisation
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Books on the topic "Heptagon"

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Muhammad, Sahri. Pemberdayaan tujuh (saptagon/heptagon) akses rumah tangga miskin: Penguatan ekonomi rumah tangga untuk penanggulangan kemiskinan dan kesejahteraan. UB Press, 2014.

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(Lodge), Heptagone, ed. L' Initiation féminine: Une voie exceptionnelle de réalisation pour la femme d'aujourd'hui. Le Rocher, 1986.

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Ciezki, Helmut. Untersuchung des selbstzündverhaltens von N-Heptan/Luft-Gemischen unter hohem Druck. Verlag der Augustinus-Buchh., 1990.

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Edmunds, Jerry. Heptagon. Independently Published, 2019.

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Corn. Heptagon Calendar 2022. Independently Published, 2021.

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Shea, James T. Working With Numbers: Heptagon Book. 2nd ed. Steck-Vaughn Co, 1987.

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Heptagone. Robert Laffont, 2012.

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Chen, Fen. Regular Polygons: Applied New Theory of Trisection to Construct a Regular Heptagon for Centuries in the History of Mathematics. International School Math & Sciences Institut, 2001.

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Heptalón para princesas. Editorial Gente Nueva, 2011.

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Christian Hack - Heptagonal Sculptures. VanSpijk, 2020.

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Book chapters on the topic "Heptagon"

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Winter, C. J. "The Energy Heptagon." In Solar Power Plants. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-61245-9_1.

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Robu, Judit, Tetsuo Ida, Dorin Ţepeneu, Hidekazu Takahashi, and Bruno Buchberger. "Computational Origami Construction of a Regular Heptagon with Automated Proof of Its Correctness." In Automated Deduction in Geometry. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11615798_2.

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Sumathi, K., S. Thenmozhi, and V. Seethalakshmi. "Design and Analysis of Heptagon-Shaped Multiband Antennas with Multiple Notching for Wireless Applications." In Microstrip Antenna Design for Wireless Applications. CRC Press, 2021. http://dx.doi.org/10.1201/9781003093558-17.

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Priya, A., M. Saravanan, D. Balasubramaniam, A. Subahar, and V. Purushothaman. "A Compact Vertex Fed Heptagon Monopole Antenna in a Wide Diamond Slot for UWB Applications." In Lecture Notes in Networks and Systems. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7345-3_48.

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Lide, David R. "2-Heptanol." In Handbook of Organic Solvents. CRC Press, 2024. http://dx.doi.org/10.1201/9781003575191-255.

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Lide, David R. "1-Heptanol." In Handbook of Organic Solvents. CRC Press, 2024. http://dx.doi.org/10.1201/9781003575191-254.

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Lide, David R. "3-Heptanol." In Handbook of Organic Solvents. CRC Press, 2024. http://dx.doi.org/10.1201/9781003575191-256.

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Gooch, Jan W. "Heptanol-2." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_5903.

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Howard, Philip H. "2-Heptanone." In Handbook of Environmental Fate and Exposure Data For Organic Chemicals, Volume V. CRC Press, 2024. http://dx.doi.org/10.1201/9781003575573-37.

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Hashim, Mohd Ekram Alhafis, Muhammad Zaffwan Idris, and Che Soh Said. "The Heptagon of AUX Model: Development of a Synergising Model on Aesthetic Experience and User Experience through the Fuzzy Delphi Method Towards Augmented Reality Comics." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99188-3_19.

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Conference papers on the topic "Heptagon"

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Wang, Yang, Yong Yang, Qi Zhang, et al. "Laser beam mode shaper with heptagonal core anti-resonant hollow-core fiber." In Eighth Workshop on Specialty Optical Fibers and their Applications, edited by Pavel Peterka, John Ballato, Kyriacos Kalli, and Alexis Mendez. SPIE, 2025. https://doi.org/10.1117/12.3056277.

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Lakade, Nilesh A., and Shankar D. Nawale. "Design of Heptagonal-Shaped 2.45 GHz Omni-directional Antenna for RF Energy Harvesting Application." In 2024 15th International Conference on Computing Communication and Networking Technologies (ICCCNT). IEEE, 2024. http://dx.doi.org/10.1109/icccnt61001.2024.10724644.

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Elapolu, Mohan S. R., and Alireza Tabarraei. "Impact of Grain Boundaries on the Heat Conductivity of Mono-Layer Hexagonal Boron Nitride." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71415.

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Reverse nonequilibrium molecular dynamics modeling is used to study the influence of grain boundaries on thermal properties of mono–layer hexagonal boron nitride (h–BN) nanoribbons. We consider symmetric grain boundaries consisting of series of pentagon–heptagon ring defects. Our results show a jump in the temperature profile at the location of grain boundary. The jump is consistently increasing with increase in the mis-orientation angle of nanoribbons with grain boundaries. This is attributed to an increase in the pentagon–heptagon defect density along the grain boundary. The temperature prof
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Shafiqzzaman, Md, Anurak Udomvech, and Teerakiat Kerdcharoen. "Theoretical studies of pentagon-heptagon pair defects in carbon nanotube junctions." In 7th IEEE International Conference on Nanotechnology. IEEE, 2007. http://dx.doi.org/10.1109/nano.2007.4601250.

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Painam, Surendra kumar, and Chandra Mohan Bhuma. "A Compact Hexa-Band and UWB Antenna Using Heptagon and Nonagon Rings with Vertex Feed." In 2018 IEEE Indian Conference on Antennas and Propogation (InCAP). IEEE, 2018. http://dx.doi.org/10.1109/incap.2018.8770812.

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Handoko, Bambang Leo, Gladys Fanny Natalya, and Edwin Hendra. "Analysis of Factors Impacting Fraudulent Financial Reporting Based on Fraud Heptagon Model on Indonesian's State-Owned Enterprises." In ICMECG 2022: 2022 The 9th International Conference on Management of e-Commerce and e-Government. ACM, 2022. http://dx.doi.org/10.1145/3549823.3549829.

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Handoko, Bambang Leo, Regine Nathasa Anya Putri, and Sylvia Wijaya. "Analysis of Fraudulent Financial Reporting based on Fraud Heptagon Model in Transportation and Logistic Industry listed on IDX during Covid-19 Pandemic." In ICSEB 2022: 2022 6th International Conference on Software and e-Business. ACM, 2022. http://dx.doi.org/10.1145/3578997.3579003.

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Spremić, Siniša. "NOVE GRANICE UNAPREĐENOG TROUGLA ZA ANALIZU GASOVA RASTVORENIH U ULJU SA PRIMERIMA KVAROVA." In 36. Savetovanja CIGRE Srbija 2023 Fleksibilnost elektroenergetskog sistema. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre36.0135s.

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For many years, various methods have been used for the dissolved gas in oil analysis: Dernenburg, Rogers relations, MSS (Mueller, Schliesinger and Soldner), Duval triangles, Duval pentagons, Universal triangle, Key gas, Logarithmic nomograph, IEC relations, Gas pattern analysis method, Japan ETRA diagnostic diagram, Heptagon... Basically most methods deal with single or pure faults. The Duval Triangle has had significant changes in the boundaries between all areas with the appearance of areas of multiple faults of electrical discharge and overheating (DT) in the existing Duval Triangle 1. A ne
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Duhr, Claude. "Hexagons, Heptagons and Octogons in N=4SYM." In “Loops and Legs in Quantum Field Theory ” 11th DESY Workshop on Elementary Particle Physics. Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.151.0027.

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Došlić, Tomislav. "The Golden Section's heptagonal connections." In 3rd Croatian Combinatorial Days. Faculty of Civil Engineering, University of Zagreb, 2021. http://dx.doi.org/10.5592/co/ccd.2020.02.

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Reports on the topic "Heptagon"

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Nahman, N. S. Dielectric constant measurements on n-heptane and 2-heptanone. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/527432.

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Arfsten, Darryl P., Linda V. Kane, and Kenneth R. Still. Derivation of Exposure Duration-Specific Occupational Exposure Limits (OELS) for 4,6-Dimethyl-2-Heptanone (CAS# 19549-80-5). Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada414142.

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