Journal articles: 'Tekla structures'

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Rachmawati, Dina Sri, and Kamaludin Kamaludin. "Desain Rangka Atap Baja Bentang Panjang dengan Memanfaatkan Konsep BIM. (Hal. 52-63)." RekaRacana: Jurnal Teknil Sipil 5, no. 3 (September 26, 2019): 52. http://dx.doi.org/10.26760/rekaracana.v5i3.52.

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ABSTRAKSaat ini penggunaan konsep BIM dalam prencanaan struktur bangunan sipil sangat diperlukan. Hal ini dikarenakan konsep BIM adalah suatu konsep pertukaran data informasi antar software salah satu contoh software yang memanfaatkan konsep BIM adalah Tekla Structures dan SAP2000. Untuk pemodelan struktur digunakan Tekla Structures dan untuk proses analisis digunakan SAP2000. Konsep BIM dapat dimanfaatkan untuk menganalisis beban-beban yang terpasang. Penelitian ini dilakukan untuk menghitung beban SDL yang terpasang pada struktur rangka atap secara real yang telah dimodelkan lengkap pada Tekla Strctures. Dilanjutukan dengan menghitung berat SDL kemudian dimasukkan sebagai beban di SAP2000. Tahap ini dilakukan secara terus menerus hingga berat SDL yang terpasang ada Tekla Strctures sesuai dengan data yang diinput pada SAP2000. Hasil yang diperoleh menunjukkan bahwa berat penampang yang dirancang menggunakan konsep BIM dan tanpa konsep BIM akurat. Hasil dimensi dari material yang digunakan memenuhi syarat yang telah dilakukan.Kata kunci: Tekla Strutures, BIM, SAP2000 ABSTRACTNowadays, the application of BIM concept in civil structure planning is very necessary. BIM concept allows exchange of data information between softwares. Some of the softwares that use BIM concept are Tekla Structures and SAP2000. For modeling using Tekla Structures and for analysis using SAP2000. BIM concept is applied in order to analyse installed load. This study aims to calculate the installed load by real data. First of the building model of roof truss is completely created in Tekla Structures. Then, we calculate SDL load of the building and input it to SAP2000. This stage is done repeatedly until SDL load in Tekla Structures matches the data in SAP2000. The result shows that there is accurate cross section weight designed with BIM concept or without BIM concept. The dimension of materials that used is eligible.Keywords: Tekla Strutures, BIM, SAP2000

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Minawati, Retno. "MANFAAT PENGGUNAAN SOFTWARE TEKLA BUILDING INFORMATION MODELING (BIM) PADA PROYEK DESIGN-BUILD." Dimensi Utama Teknik Sipil 4, no. 2 (August 1, 2017): 8–15. http://dx.doi.org/10.9744/duts.4.2.8-15.

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BIM dapat membuat desain struktur, memvisualisasi, mensimulasi, menganalisis, mendokumentasi, dan membangun proyek lebih efisien, akurat, dan kompetitif. Dengan adanya penggunaan software Tekla BIM maka diharapkan dapat mencapai keberhasilan dari proyek design-build. Dalam software Tekla Structures terdapat data-data yang akurat, detail, dan 3D yang dapat digunakan bersama oleh kontraktor, konsultan, fabrikator, dan sub-kontraktor. Tujuan dari penelitian ini adalah mengetahui manfaat penggunaan software Tekla BIM pada proyek design-build. Penelitian ini dilakukan di wilayah Surabaya dengan cara penyebaran kuisioner yang ditujukan kepada perusahaan kontraktor yang terdapat proyek design-build dan menggunakan software Tekla BIM. Selanjutnya semua kuisioner yang berhasil terkumpul dianalisis secara statistik, dengan menggunakan program SPSS. Dari hasil analisis didapatkan bahwa manfaat penggunaan software Tekla BIM pada proyek design-build adalah otomatisasi terhadap output.

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Nur Prasetyo, Ilham Agung, Taufiq Rochman, and Wahiddin Wahiddin. "PERENCANAAN DAN PEMODELAN 3D STRUKTUR GEDUNG CO-WORKING SPACE 4 LANTAI SOEKARNO HATTA KOTA MALANG BERBASIS BUILDING INFORMATION MODELING (BIM)." Jurnal JOS-MRK 2, no. 1 (March 21, 2021): 78–84. http://dx.doi.org/10.55404/jos-mrk.2021.02.01.78-84.

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The rapid development of information technology provides lots of benefits for construction. In several construction works, related to various scientific disciplines, there are often inefficiency and ineffectiveness during the process of planning and project implementation. Thus, we need a certain technology as a solution for the more efficient and integrated building planning, which is Building Information Modeling (BIM). One of the BIM-based software that is able to analyze the structures and the detailing structural elements is called Tekla Structural Designer 2019 and Tekla Structures 2020. The purpose of this study is to find out the result of analysis and the design of roof structural elements, slabs, beams, columns, stairs, bored pile foundations, pile caps, and tie beams in the 4-storey Building Structures of Co-working space Soekarno Hatta Malang City based on Building Information Modeling (BIM). The data needed was the dead load data, live load, wind load, earthquake load, technical drawings, and soil data. The analysis and the design of reinforced concrete structural elements based on the Tekla Structural Designer 2019 and rebar detailing using the Tekla Structures 2020. From the calculation data, the result obtained for the seismic base shear force of 1673 kN. The structures of the roof, slabs, beams, stairs, and tie beams using fc’ 25 MPa quality concrete. Columns structure, bored pile foundations, and pile caps using quality concrete fc’ 30 MPa. The quality of reinforcing steel for all concrete structural elements using fy 400 MPa

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Кожемякина, В. И. "Параметрическое изменение значений атрибутов элементов в ПО Tekla Structures средствами программы Grasshopper." ТЕНДЕНЦИИ РАЗВИТИЯ НАУКИ И ОБРАЗОВАНИЯ 81, no. 1 (2022): 40–44. http://dx.doi.org/10.18411/trnio-01-2022-13.

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В данной статье рассматривается способ параметрического пакетного изменения значений атрибутов элементов и узлов-компонентов в ПО Tekla Structures средствами программы Grasshopper. Показана возможность внесения изменений по определенной пользователем зависимости. Также проанализированы преимущества данного метода перед ручным вводом изменений в модель.

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Saputro, Dani Nugroho, Gandjar Pamudji, Nor Intang Setyo Hermanto, and Arnie Widyaningrum. "Pelatihan Dasar Pengoperasian Building Information Modeling (BIM) Tekla Structures bagi Guru SMK Teknik Bangunan di Kabupaten Banyumas." Jurnal Pengabdian UNDIKMA 2, no. 2 (November 13, 2021): 134. http://dx.doi.org/10.33394/jpu.v2i2.4217.

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This community service activity is intended to provide knowledge updates to Building Engineering Vocational High School teachers regarding the operation of the Tekla Structures BIM, where Tekla Structures is one of the tools of BIM, especially 3D drawings, detailing and material quantity. The method used is to analyze the needs of partners, lectures, discussions, and demonstrations. The participants of the activity, apart from the Building Vocational High School teachers in Banyumas, were also attended by representatives of several Subject Course Teacher Conferences (MGMP) throughout Central Java. Based on the evaluation of the activities, as many as 88.7% of participants had understood the concept of BIM after participating in this activity, participants welcomed and enthusiastically related to the development of learning by always following technological developments, especially in the construction sector.

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-, Fakhruddin, Herman Parung, Muhammad Wihardi Tjaronge, Rudy Djamaluddin, Rita Irmawaty, Andi Arwin Amiruddin, Abdul Rahman Djamaluddin, et al. "Sosialisasi Aplikasi Teknologi Building Information Modelling (BIM) pada Sektor Konstruksi Indonesia." JURNAL TEPAT : Applied Technology Journal for Community Engagement and Services 2, no. 2 (December 29, 2019): 112–19. http://dx.doi.org/10.25042/jurnal_tepat.v2i2.82.

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Building Information Modelling (BIM) adalah sebuah pendekatan untuk desain bangunan, konstruksi, dan manajemen. Software Tekla merupakan revolusi baru dalam bidang rekayasa struktur yang memiliki beberapa keunggulan dibanding program aplikasi lainnya. Tekla Structures merupakan perangkat lunak Building Information Modelling (BIM) yang memungkinkan untuk membuat dan mengelola data secara akurat dan rinci, serta dapat membuat model struktur 3D tanpa melupakan material dan struktur yang kompleks. Penggunaan BIM di Indonesia masih hanya sebatas menjawab persoalan bagaimana mengefisiensikan kebutuhan tenaga kerja, waktu dan uang. Jika kita berkaca pada bagaimana pengaplikasian metode BIM di negara lain, potensi yang dicapai dari pengaplikasian metode BIM di Indonesia masih jauh dari kata maksimal. Tantangan selanjutnya adalah bagaimana mengenalkan teknologi aplikasi BIM ini dan mendorong penerapan BIM ini ke seluruh pihak stakeholder sektor konstruksi yang terkait. Maka dari itu, kegiatan pengabdian pada masyarakat ini bertujuan untuk memberikan pengenalan tentang Building Information Modelling dan memberikan keterampilan dasar dalam penggunaan aplikasi teknologi BIM dengan software Tekla Structures. Kegiatan ini dilaksanakan di Departemen Teknik Sipil, Universitas Hasanuddin yang dihadiri oleh 35 peserta yang berasal dari kalangan praktisi dan akademisi. Tahapan kegiatan pengabdian meliputi kegiatan sosialiasi ke stakeholder melalui mitra Lembaga Pengembangan Jasa Konstruksi Provinsi Sulawesi Selatan (LPJKP Sul-Sel), pengumpulan data berupa shop drawing, pembuatan modul, pemodelan dan laporan berupa quantity dan gambar kerja.

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Dwi Sungkono, Kukuh Kurniawan. "APLIKASI BUILDING INFORMASI MODELING (BIM) TEKLA STRUCTURE PADA KONSTRUKSI ATAP DOME GEDUNG OLAHRAGA UTP SURAKARTA." JUTEKS - Jurnal Teknik Sipil 3, no. 2 (January 14, 2019): 273. http://dx.doi.org/10.32511/juteks.v3i2.278.

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Pekembangan teknologi informasi dibidang konstruksi berkembang semakin pesat. Teknologi virtual building dengan sistem komputasi dikembangkan dengan prinsip Building Information Modeling (BIM), mampu menciptakan modeling secara 3D di bidang konstruksi (arsitektur, struktur dan MEP). Tekla Structures salah satu perangkat lunak berbasis BIM yang mampu membuat dan mengelola data akurat dan rinci. Tekla Structures mempunyai kemampuan dalam modeling, detailing, engineering, drawing, reporting, scheduling. Pembangunan atap dome baja menggunakan sistem truss pada Gedung Olahraga UTP Surakarta dengan bentang 40meter. Memerlukan detail drawing yang baik pada proses fabrikasi, sehingga didapatkan hasil yang presisi pada saat pemasangan. Proses pemasangan dilakukan secara segmented. Gambar fabrikasi atap dome terdiri dari Gambar Arrangement, Section drawing : Kuda-kuda K1 & K2, Anchor bolt plan, Lateral & Windbrace, Purlin & Sagrod, Detail drawing : Rafter 1 s/d 13, Cutting plan. Dan report bill of materials (BOM) terdiri dari Assembly List, Assembly Part List, Bolt List, Material List dan Part List.

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Cho, Young Sang, Sung Chul Hong, Hyun Suk Jang, and Min O. Kang. "A Study on Automatic Reinforcement Placement System of Spread Footing Based on S-BIM." Advanced Materials Research 838-841 (November 2013): 3296–99. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.3296.

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The purpose of this study is to enhance productivity and economic value with precise object information generation and reinforcement quantity take-off by developing the Automation Reinforcement Placement System of Foundation (ARPF). This study was conducted by selecting the most basic form, spread footing, and no force was applied on the foundation other than axial force. For the development of ARPF, variables that should be input into the typical programs directly by users were minimized through developing the reinforcement placement algorithm by using visual C# based on the reinforced concrete structure design standard. The process of reinforcement detail placement formation was performed in the Tekla Structure (TS) that has outstanding accessibility and usability of API. Objects made by applying ARPF enable information confirmation and modification, as typical ones. Through this process using ARPF, rapid and precise reinforcement quantity take-off and footing bar placement are possible. If modeling is performed on the Tekla Structures by using ARPF, a detailed 3D reinforcement placing drawing, not 2D, can be created. It is expected that this method may take a smaller amount of time and effort than the typical drawing generation method that users had to generate objects or input information themselves.

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Nasybullin, Ranel, Fail Akhmadiev, and Olga Bakhareva. "Method for optimizing the number of glass-fiber reinforced plastic rebars in concrete structures." E3S Web of Conferences 274 (2021): 09001. http://dx.doi.org/10.1051/e3sconf/202127409001.

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Innovations in the construction industry have led to a change in the technological structure, the use of end-to-end technologies, innovative materials, information management and the need for new technical, technological and managerial solutions. The research problem is the optimal placement of glass-fiber reinforced plastic bars in concrete structures. It took several steps to solve the research problem: 1) development of an algorithm for solving the design problem in TEKLA Structures; 2) performing of calculations based on the finite element method in LIRA-SAPR, which were further reproduced in Rhinoceros and Grasshopper (based on interoperability in a single BIM environment); 3) implementation of the optimization algorithm using the parametric optimization method; 4) A practical calculation of determining the optimal values of the loads of glass-fiber reinforcement in the slab on the example of a typical design problem of a structural element of a construction facility; 5) calculation of positive economic effect. The conclusion is that the algorithm can be used in the practice of building design.

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Kotlarz, Oskar, and Adam Wosatko. "Effectivity of BIM transfer of structural models between programs for engineers." Budownictwo i Architektura 20, no. 3 (October 29, 2021): 005–24. http://dx.doi.org/10.35784/bud-arch.2627.

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The paper describes the verification of the quality of the data transfer between selected software dedicated to generation of building models and for their analysis using the finite element method. For comparison, models of two typical structures are constructed: a steel truss hall and a multi-storey reinforced concrete building. Both models are created simultaneously in two programs: Autodesk Revit and Tekla Structures. Next, these models are exported to computational packages: Autodesk Robot, Dlubal RFEM and SCIA Engineer. Different options of data transfer are considered, in particular: a direct link between programs as well as via open formats. The scope and limitations of the data exchange are determined in each case. Juxtaposition of the effectiveness of different transfer methods for such typical building models are helpful at the stage of cooperation between the architect and the structural designer. In addition, pilot results of a finite element static analysis for the steel hall model are also compared.

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Babyak, Tekla. "My Intersecting Quests as a Disabled Independent Scholar." Current Musicology 107 (January 27, 2021): 158–62. http://dx.doi.org/10.52214/cm.v107i.7844.

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This colloquy, by graduate-student-led collective Project Spectrum, attempts to map out existing discussions around inclusion and equity in music academia, with a specific focus on identifying and analyzing the structures in academia that work against minoritized and historically excluded scholars. Tekla Babyak asks us to re-imagine what is on the other side of the pipeline. In her colloquy contribution, she shares her advocacy experience in fighting for both independent scholars’ and disabled scholars’ seat at the proverbial table. She imagines an academic discipline that would readily accept, acknowledge, and uplift independent scholars—instead of considering them half- or failed scholars for their lack of institutional affiliation. And she imagines an academic discipline that would readily include disabled scholars, not for their exceptionality in achieving scholarship, but for their ability to contribute to a more diverse and inclusive intellectual milieu. She critiques the ableism endemic to the academic pipeline, an ableism that veils the physical and also emotional, mental, and spiritual obstructions in our discipline’s path to so-called success.

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Budko, Тatiana, and Lyudmila Lavrinenko2. "Structural Analysis and 3D Timber Spatial Structure Modeling." Building constructions. Theory and Practice, no. 8 (November 29, 2021): 4–16. http://dx.doi.org/10.32347/2522-4182.8.2021.4-16.

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The analysis of the structural form of the multi-volume dome structure using load-bearing wooden arches is performed. The complexity of the volumes and their connecting lines, as well as the requirement to conduct a non-linear analysis of long-span wooden elements at the request of Eurocode 5 make the information model necessary. It is noted that the design using this technology is developing in the direction of taking into account all stages of the structure life cycle. Information modeling of wooden structures in the world is the most prepared for the use of BIM-technologies. This is due to the sophisticated digital technologies for the production of modern wooden structures elements. An information model was formed for designing according to the regulations of Ukraine. The Information Model was created in the SAPFIR software package for further possibility of importing the model into the LIRA-CAD software package. The necessary auxiliary steps were used to build the model. The loads on the curved surface were calculated in the PC Espri. For further development of the nodes, 3D-modeling was used with the transfer of the information model into the PC Tekla Structures as a specialized environment for the constructive section of the project. The presented analysis of the complex dome structure using wooden arches summarizes the approaches to the development of unique forms of structures using wood. The use of information models has significantly increased the complexity of architectural design and structural model taking into account the nonlinear effects of wood. The possibility of integrating these tools for further implementation in BIM-technology is shown.

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Di Donato, D., and M. Abita. "LOW-COST 4D BIM MODELLING: A COMPARISON BETWEEN FREECAD AND COMMERCIAL SOFTWARE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W17 (November 29, 2019): 107–14. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w17-107-2019.

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Abstract. The paper aims to investigate the potential inherent in a FOSS (Free and Open Source Software) approach for the 4D BIM modelling using Freecad. In order to reach this goal it shows a comparison of Freecad features with those of commercial software, considering the evaluation of the effective application of this Open Source software in the professional environment, and highlighting the progress in the FOSS BIM area, that still represents an unexplored study field if compared to the vast publications related to BIM modelling that occurred in the last two decades. To this end, the study has been carried out on a singular case study, a steel canopy which has been designed for the urban renewal of a public space in Teramo. Despite its size, the canopy required the definition of complex details. Its structural system has addressed the study to compare Freecad with some software dedicated to steel structures or particularly suitable for the modelling of this specific structural typology: Tekla Structures and Sketchup. Starting from a concise historical reconstruction of the FOSS spread, the paper introduces a brief overview of the potential of Freecad in terms of BIM modelling - also proposing an operational modality to facilitate the drawing of BIM elements within the software - and finally reaching to the examination of three simulations which has been carried. This comparison can be useful to establish the current state of development of Freecad in the field of 4D BIM.

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Budko, T. G., and L. І. Lavrinenko. "BIM-TECHNOLOGY METHOD AND MODELS IN THE DESIGN OF THE AQUAPARK DOME STRUCTURE WITH WOODEN ARCHES." Modern structures of metal and wood, no. 25 (August 2021): 72–84. http://dx.doi.org/10.31650/2707-3068-2021-25-72-84.

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Тhe issues of designing a multi-volume dome structure for a water park using wooden arches as load-bearing structures are сonsidered. The complexity of the volumes and their joining lines, as well as the requirement to perform non-linear analysis of large-span timber elements at the request of Eurocode 5, make an information model with elements of BIM-technology necessary. It is noted that design using this technology is developing in the direction of taking into account all stages of the structure life cycle. Wood Information modeling is the most prepared for the use of BIM-technologies. This is due to the high factory readiness and complex digital technologies for the manufacture of modern wooden structures elements. During the design, an information model was formulated in the SAPFIR software package with the subsequent possibility of importing the model into the LIRA-SAPR software package. Additional steps were used to build the model: creating a 2D template in AutoCad with reference lines and the location of rigid walls on which the coating rests, and importing drawings into SAPFIR as a dxf-underlay; for all elements of the system located in the local coordinate system, auxiliary lines were built for the correct orientation of the plane in space; loads on curved surfaces were calculated in the PC Expri. For the further development of the nodes, 3D modeling was used with the transfer of the information model to the Tekla Structures PC as a specialized environment for the constructive section of the project. The presented calculation of a complex dome structure using wooden arches summarizes the approaches to the development of unique forms of structures using wood. The use of information models made it possible to reduce the time spent on design, to optimize the drawings, and also to significantly increase the complexity of the architectural and structural design of the structure and the design model, taking into account the nonlinear effects of wood.

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Miklaszewska, Joanna. "The Idea of an ‘Icon in Sound’ in the Works of John Tavener." Liturgia Sacra 57, no. 1 (July 9, 2021): 217–31. http://dx.doi.org/10.25167/ls.3934.

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Abstract The aim of this article is to present an innovative concept of the ‘icon in sound’ created by the English composer John Tavener. The first part of the article presents the intermedial and intertextual features of Tavener's work, the second shows the genesis of the concept of ‘icon in sound’, to which three factors have contributed: 1) the composer’s interest in religious topics in his pieces, 2) the composer’s conversion to Orthodoxy, 3) collaboration with Mother Tekla, the author of the texts of many Tavener’s works. The last, third part of the article describes issues related to the formal structure and musical symbolism present in Tavener’s musical icons. The composer refers to painted icons by composing works characterised by static form and the expression of spirituality, mysticism and inner peace. These features result from the juxtaposing of melismatic structures, inspired by Byzantine music, with repetitive technique and dynamics often characterised by a low intensity. One characteristic of Tavener’s sound icons is a ‘luminous’ sound, achieved through the use of high registers of voices and instruments, which are combined with contemplative and lyrical expression. An important feature of John Tavener’s musical icons was the introduction of archaic elements, resulting primarily from the inspiration that the composer drew from the musical culture of the Orthodox Church (eg the use of Byzantine scales in Mary of Egypt, the introduction of instruments such as simantron in Mary of Egypt).

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Sekutowicz, J. "TESLA superconducting accelerating structures." Measurement Science and Technology 18, no. 8 (July 6, 2007): 2285–92. http://dx.doi.org/10.1088/0957-0233/18/8/001.

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Vörös, László. "Structures in the space of Platonic and Archimedean solids." SAJ - Serbian Architectural Journal 3, no. 3 (2011): 140–51. http://dx.doi.org/10.5937/saj1102140v.

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This paper gives a classification of Platonic and Archimedean solids related to more-dimensional cubes. A general infinite net structure for space-filling mosaics created from the above solids has been derived and the node elements for grid structures based on our groups of solids have been described within the frame of constructive geometry. The topic is related to arts and design and raises further geometrical questions.

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SCHREIBER, S. "THE TESLA LINEAR COLLIDER PROJECT." International Journal of Modern Physics A 13, no. 14 (June 10, 1998): 2431–41. http://dx.doi.org/10.1142/s0217751x98001220.

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TESLA is one of the projects for a next generation TeV linear collider. Emphasis is on e+e--Physics at an initial center of mass energy of 500 GeV and a luminosity above 5·1033 cm -2 s -1. Different to other approaches, TESLA has chosen superconducting acceleration structures operated at 1.3 GHz. In this report, the TESLA project is briefly described and some aspects of a possible e-e--mode are discussed.

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van Rienen, Ursula, Hans-Walter Glock, Dirk Hecht, and Karsten Rothemund. "Computation of higher order modes in TESLA structures." International Journal of Applied Electromagnetics and Mechanics 14, no. 1-4 (December 20, 2002): 237–42. http://dx.doi.org/10.3233/jae-2002-374.

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Szymański, Witold. "Flat pneumatic elements and their potential use in the construction of dwelling facilities within emergency housing systems." Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych 17, no. 2 (June 30, 2021): 24–36. http://dx.doi.org/10.35784/teka.2664.

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As part of this study, experimental and theoretical investigations into the strength and stiffness of flat pneumatic elements to be used in lightweight dwelling structures, enabling the quick assembly of the latter, were undertaken. On the basis of the experimentally and theoretically determined parameters of the elements it will be possible to design configurations of spatial pneumatic structures. In particular, the following were devised and carried out: a theoretical assessment of the load capacity and stiffness of selected pneumatic elements depending on their dimensions, internal pressure and fixing and support conditions, an experimental verification of the obtained results. This study has an exploratory character and constitutes the basis for the design and implementation of original technical, constructional and architectural solutions relating to the application of spatial pneumatic structures in the emergency system. It should be mentioned that in the known literature on the subject there is no theoretical basis for designing structures whose principal member is a flat pneumatic element. In the construction industry such structures have not been used so far. An exemplary solution of the spatial dwelling structure has been patented under the name Obiekt mieszkalny (Dwelling facility), (patent no. 131 528, of 18.04.1988).

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Matschl, V., J. T. Heverhagen, M. Kalinowski, A. Alfke, H. J. Jaensch, H. J. Wagner, and K. J. Klose. "In vivo Evaluation einer intravaskulären Empfangsspule für MRI bei 1,0 Tesla." Vasa 30, no. 1 (February 1, 2001): 9–13. http://dx.doi.org/10.1024/0301-1526.30.1.9.

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Background: Evaluation of the applicability of intravascular radiofrequency receiver coils by means of a pig in-vivo-experiment for the detection of vessel wall structures at 1.0 Tesla. Materials and methods: The intravascular receiver coil was constructed according to a well evaluated single-loop-design, which was mounted onto a balloon catheter for angioplasty. Under fluoroscopy control the balloon catheter was placed in the common carotid artery of a porcine. Images were obtained in a 1.0 Tesla clinical scanner using a fast-spin-echo-, a gradient-echo- and a high resolution spin-echo-sequence. Histological examinations were obtained to detect any vessel wall damage associated with the use of the receiver coil. Results: High qualtity images with a resolution up to 0.16*0.12 mm2 could be acquired in aquisition times of about 5 minutes. Subtle intra- and extra-vascular structures such as the balloon, irregularities of the vessel wall or bordering structures could be visualized. The histological examination showed no vessel damage due to the application of the intravascular receiver coil. Conclusions: The application of intravascular receiver coils for the visualization of the vessel wall is feasible at 1.0 Tesla without histologically detectable trauma to the vessel wall.

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Radovanović, Nikola, Nemanja Zorić, Nataša Trišović, and Aleksandar Tomović. "Free planar vibration of structures composed of rigid bodies and elastic beam segments." FME Transactions 45, no. 1 (2017): 97–102. http://dx.doi.org/10.5937/fmet1701097r.

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Kulig, Anna. "About historic stonework in Kraków." Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych 13, no. 3 (January 12, 2018): 7–13. http://dx.doi.org/10.35784/teka.1709.

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Massive fragments of portals, mouldings, and columns which are stored in stone collections and museum storage rooms are today of no particular interest. They spur the visitors’ imagination only slightly; there, just a piece of stone, carved, yet incomplete, broken. Can this legacy, difficult in perception, be shown in a different way and made memorable? Can it be made close to the audience? The concepts of the pioneers of conservation of historical objects are worth referencing. Realized concepts testify for an attitude of respect towards the legacy and traditions. Gothic architectural details that were abandoned during demolitions of historical structures in the 19th century, have survived elsewhere, “incrusted” in other structures. It happened in the walls of Collegium Maius, The Bishop Erazm Ciołek Palace, Pusłowscy Palace, Lubomirscy Palace, Tadeusz Stryjeński Palace. They were often treated as native relics. Saved from destruction and from being forgotten they adorn facades, interiors and gardens. Perhaps the idea and the examples of stone collections will spur a reflection and inspiration in designers today.

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Hong, Chien-Chong, Jin-Woo Choi, and Chong H. Ahn. "A novel in-plane passive microfluidic mixer with modified Tesla structures." Lab on a Chip 4, no. 2 (2004): 109. http://dx.doi.org/10.1039/b305892a.

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Oomen, K. P. Q., F. A. Pameijer, J. J. M. Zwanenburg, G. J. Hordijk, J. A. De Ru, and R. L. A. W. Bleys. "Improved Depiction of Pterygopalatine Fossa Anatomy Using Ultrahigh-Resolution Magnetic Resonance Imaging at 7 Tesla." Scientific World Journal 2012 (2012): 1–7. http://dx.doi.org/10.1100/2012/691095.

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Purpose. To study the anatomy of the pterygopalatine fossa (PPF) using ultrahigh-resolution magnetic resonance imaging.Methods. A human cadaveric tissue block containing the pterygopalatine fossa was examined on a clinical 7-Tesla magnetic resonance imaging system. Subsequently, cryosections of the tissue block were created in a coronal plane. The cryosections were photographed and collected on adhesive tape. The on-tape sections were stained for Mallory-Cason, in order to detail the anatomic structures within the fossa. Magnetic resonance images were compared with surface photos of the tissue block and on-tape sections.Results. High-resolution magnetic resonance images demonstrated the common macroscopic structures in the PPF. Smaller structures, best viewed at the level of the operation microscope, which have previously been obscured on magnetic resonance imaging, could be depicted. Some of the orbital pterygopalatine ganglion branches and the pharyngeal nerve were clearly viewed.Conclusions. In our experience with one human cadaver specimen, magnetic resonance imaging at 7 Tesla seems effective in depicting pterygopalatine fossa anatomy and provides previously unseen details through its demonstration of the pharyngeal nerve and the orbital pterygopalatine ganglion branches. The true viability of depicting the pterygopalatine fossa with ultrahigh-resolution MR will depend on confirmation of our results in larger studies.

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Guk, I. S., and A. N. Dovbnya. "The development of a TESLA recirculator with superconducting accelerating structures in Ukraine." Physics of Particles and Nuclei Letters 5, no. 7 (November 25, 2008): 572–76. http://dx.doi.org/10.1134/s1547477108070066.

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Yang, An-Shik, Feng-Chao Chuang, Chi-Kuan Chen, Mei-Hui Lee, Shih-Wei Chen, Tsai-Lung Su, and Yung-Chun Yang. "A high-performance micromixer using three-dimensional Tesla structures for bio-applications." Chemical Engineering Journal 263 (March 2015): 444–51. http://dx.doi.org/10.1016/j.cej.2014.11.034.

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Napieralska, Zuzanna, Marek Piróg, Natalia Przesmycka, Agata Pięt, and Marcin Zdanowicz. "Building engineering issues in Architectural education in Poland, in context of actual Ministry of Science and Higher Education Regulations." Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych 17, no. 2 (June 30, 2021): 87–95. http://dx.doi.org/10.35784/teka.2712.

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The article presents the curriculum for architectural studies in the context of technical courses, such as building engineering, structures, materials science and building physics. The authors of the publication compare the method of conducting these courses and their participation in the entire study program on the example of selected Polish universities (Faculty of Architecture of the Wrocław University of Science and Technology, Faculty of Architecture and Building Engineering of the Lublin University of Technology and the Faculty of Technical Sciences, University of Applied Sciences in Nysa). Authors of the article present changes that have occurred in the curriculum of these courses before and after the reform of higher education from 2019, what impact it has on the education of future architects, and what new opportunities these changes offer will be analyzed.

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Kido, Ewa Maria. "ELEMENTS OF THE UBRANSCAPE IN TOKYO." Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych 8, no. 1 (June 29, 2012): 75–92. http://dx.doi.org/10.35784/teka.2495.

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Tokyo Metropolis (Tōkyō-to) of 13 mln people, crowded, colored, noisy, made of very freely designed buildings, with railway loop line separating the inner center from the outer center – from one side is similar to other large metropolises in Japan, and from another – being a capitol and having the Imperial Palace as its symbolical center, is unique. This article discusses elements of urbanscape, such as transportation infrastructure – roads and railways; junctions and city centers – neighborhoods; urban interiors – streets and squares; border lines and belts – rivers, parks; dominant urban structures, outstanding elements – landmarks, and characteristic sights, that contribute to aesthetic appeal of the landscape of Tokyo. The conclusion is that although both European cities and Tokyo have well-functioning centers, as well as subcenters of the polycentric metropolises, their forms are differing because they reflect local urban planning, aesthetics, and culture.

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Tokajuk, Andrzej, and Ewa Tokajuk. "New Life of Postindustrial Factories in Bialystok – Chosen Aspects." Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych 15, no. 1 (February 4, 2020): 16–27. http://dx.doi.org/10.35784/teka.1488.

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The revitalization is one of the most essential processes associated with transformations of urban structures in the 20th and 21st centuries. Revitalization actions, carried out in Polish cities at the beginning of the 21st century, concern mainly postindustrial areas and buildings. The most known revitalization operations in Poland have been carried out in Lodz and Poznan. The authors of the article will present analyses concerning revitalization problems of some old factories in Bialystok – former significant centre of the textile industry in Poland in the end of 19th and first half of the 20th century. The authors will present significant architectural, spatial and economical effects of such transformations. The research was carried out in the frame of scientific project No. S/WA/2/2016 at the Bialystok University of Technology, Faculty of Architecture and financed from science research sources by Polish Ministry of Science and Higher Education.

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Arencibia, Alberto, Diego Blanco, Nelson González, and Miguel A. Rivero. "Computed Tomography and Magnetic Resonance Imaging Features of the Temporomandibular Joint in Two Normal Camels." Anatomy Research International 2012 (October 20, 2012): 1–6. http://dx.doi.org/10.1155/2012/242065.

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Computed tomography (CT) and magnetic resonance (MR) image features of the temporomandibular joint (TMJ) and associated structures in two mature dromedary camels were obtained with a third-generation equipment CT and a superconducting magnet RM at 1.5 Tesla. Images were acquired in sagittal and transverse planes. Medical imaging processing with imaging software was applied to obtain postprocessing CT and MR images. Relevant anatomic structures were identified and labelled. The resulting images provided excellent anatomic detail of the TMJ and associated structures. Annotated CT and MR images from this study are intended as an anatomical reference useful in the interpretation for clinical CT and MR imaging studies of the TMJ of the dromedary camels.

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Hamlin, D. J., H. Pettersson, J. O. Johnson, and J. R. Fitzsimmons. "Advances in Magnetic Resonance Imaging of the Pelvis at 0.15 Tesla." Acta Radiologica. Diagnosis 27, no. 4 (July 1986): 369–77. http://dx.doi.org/10.1177/028418518602700401.

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The recent development of improved commercial radiofrequency coils and multiecho, multislice software for low field strength magnetic resonance systems has markedly increased the clinical utility of magnetic resonance imaging (MRI) of the pelvis at low field strengths. An evaluation of 70 patients with a variety of pelvic lesions and 14 normal volunteers who were studied using 0.15 T resistive magnet scanner revealed that anatomic structures and a variety of mass lesions could be clearly depicted in transaxial, sagittal and coronal planes using this updated system. Accurate characterization of lesions was possible in many instances using T2 weighted multiecho scans with echo time (TE) ranging from 30 ms to 120 ms (45 ms–180 ms using a reduced bandwidth technique). T1 weighted multislice scans demonstrated anatomic structures to best adantage and calculation of T1 and T2 relaxation times frequently facilitated more accurate differential diagnosis, particularly in the case of ovarian lesions.

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WEI, ZHENG, and JOSEPH JAJA. "OPTIMIZATION OF LINKED LIST PREFIX COMPUTATIONS ON MULTITHREADED GPUS USING CUDA." Parallel Processing Letters 22, no. 04 (December 2012): 1250012. http://dx.doi.org/10.1142/s0129626412500120.

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We present a number of optimization techniques to compute prefix sums on linked lists and implement them on the multithreaded GPUs Tesla C1060, Tesla C2050, and GTX480 using CUDA. Prefix computations on linked structures involve in general highly irregular fine grain memory accesses that are typical of many computations on linked lists, trees, and graphs. While the current generation of GPUs provides substantial computational power and extremely high bandwidth memory accesses, they may appear at first to be primarily geared toward streamed, highly data parallel computations. In this paper, we introduce an optimized multithreaded GPU algorithm for prefix computations through a randomization process that reduces the problem to a large number of fine-grain computations. We map these fine-grain computations onto multithreaded GPUs in such a way that the processing cost per element is shown to be close to the best possible. Our experimental results show scalability for list sizes ranging from 1M nodes to 256M nodes, and significantly improve on the recently published parallel implementations of list ranking, including implementations on the Cell Processor, the MTA-8, and the NVIDIA GT200 and Fermi series. They also compare favorably to the performance of the best known CUDA algorithm for the scan operation on the Tesla C1060 and GTX480.

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Hemmingsson, A., A. Ericsson, S. Ljunghall, C. Juhlin, B. Jung, J. Rastad, K. Å. Thuomas, and G. Åkerström. "Technical Aspects of Magnetic Resonance Imaging in Parathyroid Gland Lesions." Acta Radiologica. Diagnosis 27, no. 5 (September 1986): 595–97. http://dx.doi.org/10.1177/028418518602700520.

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Two patients with primary hyperparathyroidism were examined before parathyroid surgery with magnetic resonance imaging at 0.35 tesla in order to analyse optimal methods of visualization. Two large parathyroid glands in the neck had long transverse relaxation times which rendered them clearly visible in T2-weighted images as structures of a signal intensity higher than that of the surrounding. Large parathyroid lesions may thus be easily detected by magnetic resonance imaging provided proper examination parameters are employed.

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Nunthayanon, Kulthida, Ei-ichi Honda, Kazuo Shimazaki, Hiroko Ohmori, Maristela Sayuri Inoue-Arai, Tohru Kurabayashi, and Takashi Ono. "Differences in Velopharyngeal Structure during Speech among Asians Revealed by 3-Tesla Magnetic Resonance Imaging Movie Mode." BioMed Research International 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/126264.

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Objective.Different bony structures can affect the function of the velopharyngeal muscles. Asian populations differ morphologically, including the morphologies of their bony structures. The purpose of this study was to compare the velopharyngeal structures during speech in two Asian populations: Japanese and Thai.Methods.Ten healthy Japanese and Thai females (five each) were evaluated with a 3-Tesla (3 T) magnetic resonance imaging (MRI) scanner while they produced vowel-consonant-vowel syllable (/asa/). A gradient-echo sequence, fast low-angle shot with segmented cine and parallel imaging technique was used to obtain sagittal images of the velopharyngeal structures.Results.MRI was carried out in real time during speech production, allowing investigations of the time-to-time changes in the velopharyngeal structures. Thai subjects had a significantly longer hard palate and produced shorter consonant than Japanese subjects. The velum of the Thai participants showed significant thickening during consonant production and their retroglossal space was significantly wider at rest, whereas the dimensional change during task performance was similar in the two populations.Conclusions.The 3 T MRI movie method can be used to investigate velopharyngeal function and diagnose velopharyngeal insufficiency. The racial differences may include differences in skeletal patterns and soft-tissue morphology that result in functional differences for the affected structures.

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Hadzic, Alena, Teresa D. Nguyen, Makoto Hosoyamada, Naoko H. Tomioka, Linda H. Bergersen, Jon Storm-Mathisen, and Cecilie Morland. "The Lactate Receptor HCA1 Is Present in the Choroid Plexus, the Tela Choroidea, and the Neuroepithelial Lining of the Dorsal Part of the Third Ventricle." International Journal of Molecular Sciences 21, no. 18 (September 4, 2020): 6457. http://dx.doi.org/10.3390/ijms21186457.

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The volume, composition, and movement of the cerebrospinal fluid (CSF) are important for brain physiology, pathology, and diagnostics. Nevertheless, few studies have focused on the main structure that produces CSF, the choroid plexus (CP). Due to the presence of monocarboxylate transporters (MCTs) in the CP, changes in blood and brain lactate levels are reflected in the CSF. A lactate receptor, the hydroxycarboxylic acid receptor 1 (HCA1), is present in the brain, but whether it is located in the CP or in other periventricular structures has not been studied. Here, we investigated the distribution of HCA1 in the cerebral ventricular system using monomeric red fluorescent protein (mRFP)-HCA1 reporter mice. The reporter signal was only detected in the dorsal part of the third ventricle, where strong mRFP-HCA1 labeling was present in cells of the CP, the tela choroidea, and the neuroepithelial ventricular lining. Co-labeling experiments identified these cells as fibroblasts (in the CP, the tela choroidea, and the ventricle lining) and ependymal cells (in the tela choroidea and the ventricle lining). Our data suggest that the HCA1-containing fibroblasts and ependymal cells have the ability to respond to alterations in CSF lactate in body–brain signaling, but also as a sign of neuropathology (e.g., stroke and Alzheimer’s disease biomarker).

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Slattery, D., C. Aland, G. Durbridge, and G. Cowin. "The connective tissue and ligaments of the distal interphalangeal joint: a review and investigation using ultra-high field 16.4 Tesla magnetic resonance imaging." Journal of Hand Surgery (European Volume) 39, no. 4 (July 22, 2013): 398–404. http://dx.doi.org/10.1177/1753193413496949.

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This study reviews the literature on the anatomy of the connective tissues surrounding the distal interphalangeal joint and further characterizes the three-dimensional relationships of these structures with ultra-high field magnetic resonance imaging. Ten cadaver fingers, fixed in a solution of 5% agar and 4% formalin, were imaged utilising an ultrashield 16.4 Tesla ultra-high field magnetic resonance imaging, yielding a total of 4000 images. Images were analysed using Osirix™ (version 5.5.1 32 bit edition) for three-dimensional reconstruction. We found numerous conflicting descriptions of the connective tissue structures around the distal interphalangeal joint. Based upon our literature review and imaging studies we have defined precisely Cleland’s ligaments, the oblique proximal septum, Grayson’s ligaments, the dorsal plate, and the interosseous ligaments of the distal interphalangeal joint.

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Hunter, C. J., E. Scurr, N. Jeyadevan, D. J. Collins, M. Abulafi, P. P. Tekkis, P. A. Georgiou, M. O. Leach, and G. Brown. "Optimising magnetic resonance imaging for preoperative staging and surgical planning in colon cancer at 1.5 tesla and 3.0 tesla." Journal of Clinical Oncology 29, no. 4_suppl (February 1, 2011): 395. http://dx.doi.org/10.1200/jco.2011.29.4_suppl.395.

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395 Background: The aim of this study was to determine best technique for future preoperative staging and operative planning in colon cancer using MRI at 1.5T, and feasibility at 3.0T. Methods: 39 scans were performed in 4 healthy volunteers comparing bowel distension using different oral contrast techniques; no oral preparation, 1L of water, 1L of poly ethylene glycol (Klean-Prep), and 1L of 2.1% barium sulphate and 3.2% sorbitol solution (E-Z-Cat) at 1.5T. Bowel distension was scored blindly by 2 experienced radiologists. A further 35 scans compared image quality of T2-weighted pulse sequences; 2D-TrueFISP, 3D-TrueFISP, HASTE, 2D-TSE and 3D-TSE. Scans were scored for movement artefact, colon wall and colon mesentery visualisation. Signal to noise ratio (SNR) was calculated. Inter-observer agreement was assessed using Cohen's Kappa. Equivalent optimised protocols were derived at 3.0T and tested for feasibility. Results: Inter-observer agreement for scoring was good (kappa = 0.61-0.67). Sorbitol-barium sulphate gave significantly better small bowel distension than no oral preparation, water and Klean-Prep (mean score 3.8 vs 1.6, 2.2 and 1.9, p≤0.007). 2D TrueFISP sequences gave the highest mean score for scan quality, significantly better than 3D-TSE, 2D-TSE, 3D-TrueFISP and HASTE (mean 10.6 vs 3.2, 7.8, 7.7 and 7.4, p≤0.012). 2D-TSE sequences obtained best SNR, significantly greater than obtained using 3D-TSE (p=0.045). 3.0T sequences were comparable or superior. Conclusions: Colon imaging using MRI requires fast sequences and adequate bowel distension. Our observations indicate that 2D-TrueFISP and 2D-TSE sequences with 1L Sorbitol-Barium sulphate orally give the best T2-weighted images of the colon wall and adjacent structures for cancer staging at 1.5T; equivalent 3.0T protocols are possible. No significant financial relationships to disclose.

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He, Shi, Jun-na Li, Yong-liang Wang, Guang-xi Cui, Xu-liang Chen, and Ai-ci Qiu. "Simulation of primary current distribution in Tesla-type pulse generators." Review of Scientific Instruments 93, no. 4 (April 1, 2022): 044701. http://dx.doi.org/10.1063/5.0080311.

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In a Tesla-type pulse generator, self-inductance of the primary coil is a crucial parameter to determine the final oscillating condition. However, the accurate value of this inductance might be changed due to the uneven primary current distribution caused by practical configuration of the primary side. Consequently, in order to precisely design the transformer, it is helpful to evaluate the primary inductance based on electromagnetic simulation instead of conventional approximate calculation. In this paper, a simulation model based on the finite integration technique is established to solve the uneven primary current problem. A primary coil with multiple contacting points is designed, and hexahedral mesh generation of the coil is also discussed. Hence, a series of verification tests using different primary structures are performed to support the results of simulation. Both results of the simulation model and the verification test presented that the variation of the primary inductance will affect the performance of the generator, and the number of contacting points is the main cause to determine the maximum current density of the coil.

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Karsli, Ozlem, Avni Aksoy, Caglar Kaya, Burak Koc, Mustafa Dogan, O. Faruk Elcim, and Mehmet Bozdogan. "High power RF operations studies at TARLA facility." Canadian Journal of Physics 97, no. 11 (November 2019): 1171–76. http://dx.doi.org/10.1139/cjp-2018-0778.

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Turkish Accelerator and Radiation Laboratory (TARLA) is a facility capable of accelerating an electron beam up to 40 MeV. Two beamlines were proposed to generate free-electron laser radiation and bremsstrahlung. The accelerator employs two normal conducting cavities, so-called buncher cavities: subharmonic buncher (SHB) and fundamental buncher (FB), and two cryomodules that house two TESLA cavities each. SHB operates in 260 MHz and FB in 1.3 GHz, and is powered by 1.5 kW and 500 W radio frequency (RF) amplifiers, respectively. Each TESLA cavity is driven by 18 kW saturated high-power solid-state amplifiers (SSA). In addition, a L band pulse compressor system is designed and implemented at the facility to actively promote high-power RF research. Currently, setup of a resonant ring test bench is approved to test the RF components under high power RF conditions. This paper describes the TARLA high power RF, RF controller, and network structures. High power tests and measurements of the RF components of the TARLA beamline are given. Outcomes from the operation of the L band pulse compressor are explained, and the resonant ring test stand is stated as a summary.

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Smith, B. R. "Magnetic Resonance Analysis of Mouse Embryos with Altered Gene Expression." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 20–21. http://dx.doi.org/10.1017/s0424820100162569.

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Techniques to assess and analyze phenotypes of experimentally altered animals have not kept pace with our ability to manipulate the genome. Assessment of the shape, position, and timing of the appearance of anatomical structures is indispensable to identifying and understanding the mechanisms of normal and abnormal morphogenesis. Tools are needed to effectively diagnose the condition of the hundreds of experimentally altered animals being produced.Magnetic resonance (MR) microscopy is a non-destructive technique capable of generating three-dimensional images of developing structures from whole embryos. It facilitates the evaluation of complex anatomical structures by allowing them to be studied in any plane of sectioning for cut-away views and from any angle for surface views.MR microscopy has been used to assess the following mutant mouse embryos and mouse embryos with altered gene expression: Splotch, Curly-tail, Loop-tail, TS 16, HOX 2.2 transgenic, MARKS knockout, LH-2 knockout, and Dlx-2 knockout. Imaging was performed on a modified 9.4 Tesla GE NMR Instruments Omega system with echo times of 6 ms and repetition times of 200 ms.

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Yu, S., and S. Lee. "White Matter Dysconnectivity in Panic Disorder with Early Sexual Abuse History: A Preliminary Study." Klinička psihologija 9, no. 1 (June 13, 2016): 128. http://dx.doi.org/10.21465/2016-kp-p-0002.

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Objective: People who have experienced childhood abuse are more likely to experience frequent or generalized anxiety or panic disorder (PD). Although previous studies have used magnetic resonance imaging (MRI) to demonstrate structural abnormalities of brain in subjects with PD, there are no study about the brain white matter (WM) connectivity differences between PD with and without early sexual abuse. The objective of this study is to compare the brain WM connectivity between PD with and without early sexual abuse history. Design and Method: Twelve right-handed patients with PD [12 women; 35.91±10.29 (mean±SD) age] who met the diagnostic criteria in Structured Clinical Interview for DSM-IV were examined by means of MRI at 3 Tesla. We divided the patients with PD into two groups with and without early sexual abuse to compare the WM connectivity. Panic Disorder Severity Scale (PDSS), Beck Depression Inventory (BDI) and Anxiety Sensitivity Index-Revised (ASI-R) were administered in PD patients. Results: Tract-based spatial statistics showed that fractional anisotropy (FA) values in PD with sexual abuse history were significantly higher than PD without abuse in the right internal capsule, superior corona radiata, sagittal stratum, fornix. The scores of PDSS, BDI, ASI-R were significantly correlated in the above-mentioned WM regions. Conclusions: This preliminary study suggests that early sexual abuse could influence the connectivity among emotion related limbic structures in PD.

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Hossain, Shakhawat, Ahmed Fuwad, Kwang-Yong Kim, Tae-Joon Jeon, and Sun Min Kim. "Investigation of Mixing Performance of Two-Dimensional Micromixer Using Tesla Structures with Different Shapes of Obstacles." Industrial & Engineering Chemistry Research 59, no. 9 (February 6, 2020): 3636–43. http://dx.doi.org/10.1021/acs.iecr.9b06741.

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Krasny, Andrej, Nicolai Krasny, and Andreas Prescher. "Anatomic Variations of Neural Canal Structures of the Mandible Observed by 3-Tesla Magnetic Resonance Imaging." Journal of Computer Assisted Tomography 36, no. 1 (2012): 150–53. http://dx.doi.org/10.1097/rct.0b013e3182436c6d.

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Isaacs, Bethany R., Martijn J. Mulder, Josephine M. Groot, Nikita van Berendonk, Nicky Lute, Pierre-Louis Bazin, Birte U. Forstmann, and Anneke Alkemade. "3 versus 7 Tesla magnetic resonance imaging for parcellations of subcortical brain structures in clinical settings." PLOS ONE 15, no. 11 (November 24, 2020): e0236208. http://dx.doi.org/10.1371/journal.pone.0236208.

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7 Tesla (7T) magnetic resonance imaging holds great promise for improved visualization of the human brain for clinical purposes. To assess whether 7T is superior regarding localization procedures of small brain structures, we compared manual parcellations of the red nucleus, subthalamic nucleus, substantia nigra, globus pallidus interna and externa. These parcellations were created on a commonly used clinical anisotropic clinical 3T with an optimized isotropic (o)3T and standard 7T scan. The clinical 3T MRI scans did not allow delineation of an anatomically plausible structure due to its limited spatial resolution. o3T and 7T parcellations were directly compared. We found that 7T outperformed the o3T MRI as reflected by higher Dice scores, which were used as a measurement of interrater agreement for manual parcellations on quantitative susceptibility maps. This increase in agreement was associated with higher contrast to noise ratios for smaller structures, but not for the larger globus pallidus segments. Additionally, control-analyses were performed to account for potential biases in manual parcellations by assessing semi-automatic parcellations. These results showed a higher consistency for structure volumes for 7T compared to optimized 3T which illustrates the importance of the use of isotropic voxels for 3D visualization of the surgical target area. Together these results indicate that 7T outperforms c3T as well as o3T given the constraints of a clinical setting.

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Feldman, Rebecca Emily, Lara Vanessa Marcuse, Gaurav Verma, Stephanie Sian Gabriella Brown, Alexandru Rus, John Watson Rutland, Bradley Neil Delman, Priti Balchandani, and Madeline Cara Fields. "Seven‐tesla susceptibility‐weighted analysis of hippocampal venous structures: Application to magnetic‐resonance–normal focal epilepsy." Epilepsia 61, no. 2 (February 2020): 287–96. http://dx.doi.org/10.1111/epi.16433.

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De Reuck, Jacques L. "Post-mortem Magnetic Resonance Imaging as an Additional Tool of the Neuropathological Examination of Neurodegenerative and Cerebrovascular Diseases." European Neurological Review 11, no. 1 (2016): 22. http://dx.doi.org/10.17925/enr.2016.11.01.22.

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Neuropathological examination of post-mortem brains of patients with dementia due to neurodegenerative and cerebrovascular changes remains important, as the family wants to be sure about the clinical diagnosis and the risk of a hereditary disease. 7.0-tesla magnetic resonance imaging (MRI) can be applied as an additional tool to examine post-mortem brains of patients with neurodegenerative and cerebrovasular diseases. It allows examination of serial coronal sections of a cerebral hemisphere and horizontal sections of brainstem and cerebellum and comparison with the neuropathological lesions. Post-mortem MRI can show the degree and the distribution of the cerebral atrophy. Additional small cerebrovascular lesions can be quantified. The degree of iron load, not due to microbleeds, can be evaluated in different basal ganglia and brainstem structures. Three to six serial sections of a cerebral hemisphere and one section of brainstem and cerebellum allow the evaluation of the most important brain changes and to select the small samples to be used for histological diagnostic purposes. These correlation studies are extremely important for the future, when more 7.0-tesla MRI machines will be available forin vivoclinical-radiological diagnosis. This article is a review of post-mortem MRI data in the brains of patients with neurodegenerative and vascular dementias.

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Lei, Jiang, Xian Wang, and Gongnan Xie. "High Performance Computation of a Jet in Crossflow by Lattice Boltzmann Based Parallel Direct Numerical Simulation." Mathematical Problems in Engineering 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/956827.

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Direct numerical simulation (DNS) of a round jet in crossflow based on lattice Boltzmann method (LBM) is carried out on multi-GPU cluster. Data parallel SIMT (single instruction multiple thread) characteristic of GPU matches the parallelism of LBM well, which leads to the high efficiency of GPU on the LBM solver. With present GPU settings (6 Nvidia Tesla K20M), the present DNS simulation can be completed in several hours. A grid system of 1.5 × 108is adopted and largest jet Reynolds number reaches 3000. The jet-to-free-stream velocity ratio is set as 3.3. The jet is orthogonal to the mainstream flow direction. The validated code shows good agreement with experiments. Vortical structures of CRVP, shear-layer vortices and horseshoe vortices, are presented and analyzed based on velocity fields and vorticity distributions. Turbulent statistical quantities of Reynolds stress are also displayed. Coherent structures are revealed in a very fine resolution based on the second invariant of the velocity gradients.

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Srinivasan, A., R. Dvorak, S. Rohrer, and S. K. Mukherji. "Initial experience of 3-tesla apparent diffusion coefficient values in characterizing squamous cell carcinomas of the head and neck." Acta Radiologica 49, no. 9 (November 2008): 1079–84. http://dx.doi.org/10.1080/02841850802406196.

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Background: With the increased clinical use of 3-Tesla (3T) magnets, it becomes important to identify the potential applications of advanced magnetic resonance (MR) imaging techniques such as diffusion-weighted imaging in head and neck pathologies. Purpose: To establish the 3T apparent diffusion coefficient (ADC) values for normal neck structures, and to examine the utility of ADC values in distinguishing head and neck squamous cell carcinomas (HNSCC) from normal neck anatomy. Material and Methods: 3T diffusion-weighted imaging was performed on 10 normal volunteers and 10 patients with known HNSCC. In the volunteers, mean ADC was calculated in the parotid gland, submandibular gland, base of the tongue, pterygoid muscle, masseter muscle, paraspinal muscles, true vocal cord, thyroid gland, thyroid cartilage, cricoid cartilage, and lymph nodes. The mean tumor ADC value was calculated from the 10 patients with HNSCC and compared with the normal ADC values from various neck structures. Results: The mean ADC value measured in the HNSCC was 1.101 (±0.214)×10−3mm2/s. This was significantly lower than ADC values of paraspinal muscles, pterygoid muscle, masseter muscle, thyroid gland, and base of the tongue ( P=0.0006, 0.0002, 0.0001, 0.001, and 0.002, respectively). The tumor ADC values were not significantly different from ADC values of parotid and submandibular glands ( P=0.057 and 0.14, respectively). Conclusion: 3T ADC values show potential for distinguishing HNSCC from normal extracranial head and neck structures.

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Çağdaş;EKİM, OTO. "3 Tesla Magnetic resonance imaging and multiplanar reconstruction of the brain and its associated structures in pig." Ankara Üniversitesi Veteriner Fakültesi Dergisi 58, no. 2 (2011): 73–78. http://dx.doi.org/10.1501/vetfak_0000002453.

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Journal articles on the topic 'Tekla structures'

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