Littérature scientifique sur le sujet « Ultra-high towers »
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Articles de revues sur le sujet "Ultra-high towers"
Wang, Fei, Ke Du, Jingjiang Sun, Fuyun Huang et Zhenghui Xiong. « Shaking Table Array Tests of an Ultra-High-Voltage Cup-Type Transmission Tower-Line System ». Shock and Vibration 2019 (11 décembre 2019) : 1–20. http://dx.doi.org/10.1155/2019/2350675.
Texte intégralXu, Ke Ju, Lei Yang, Da Da Wang, Chao Zhou, Shao Quan Zhang, Qing Jun Peng et Xiao Ming Rui. « Parametrical Finite Element Modeling of Overhead Transmission Line-Towers System ». Applied Mechanics and Materials 313-314 (mars 2013) : 809–12. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.809.
Texte intégralZheng, Ni Na, Ying Min Li, Jing Zhao et Zheng Lun Chen. « Seismic Design Scope of Tower Structures for UHV Transmission Lines on the Zone of Earthquake Fortification Intensity 8 ». Advanced Materials Research 446-449 (janvier 2012) : 3730–35. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3730.
Texte intégralXu, Feiya, Wenbing Guo et Jianli Li. « Study on Protective Coal Pillar Size Design for Ultra High Voltage Line Tower Mining in Mountain Areas ». Designs 3, no 2 (4 avril 2019) : 20. http://dx.doi.org/10.3390/designs3020020.
Texte intégralJabbar, Sarah, Farzad Hejazi, Ammar N. Hanoon et Rizal S. M. Rashid. « DAMAGE DETECTION FOR UHPFRC COMMUNICATION TOWER BASED ON FREQUENCY DATA AND PARTICLE SWARM OPTIMIZATION ». JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 25, no 6 (3 juin 2019) : 495–517. http://dx.doi.org/10.3846/jcem.2019.8002.
Texte intégralJiang, Baolong, Shuyan Ji, Yingmin Li, Pu Yang, Yangyang Tang et Zhikun Chen. « DESIGN AND ANALYSIS OF CONNECTION TYPES FOR ULTRA-HIGH-RISE TWIN-TOWER STRUCTURE LEARNING ». NED University Journal of Research 3, Special Issue on First SACEE'19 (12 décembre 2019) : 191–98. http://dx.doi.org/10.35453/nedjr-stmech-2019-0039.
Texte intégralSzołomicki, Jerzy, et Hanna Golasz-Szołomicka. « The Modern Trend of Super Slender Residential Buildings ». Budownictwo i Architektura 20, no 1 (9 février 2021) : 083–116. http://dx.doi.org/10.35784/bud-arch.2068.
Texte intégralGuo, Xianshan, Ying Fu, Jingqiu Yu et Zheng Xu. « A Non-Uniform Transmission Line Model of the ±1100 kV UHV Tower ». Energies 12, no 3 (30 janvier 2019) : 445. http://dx.doi.org/10.3390/en12030445.
Texte intégralGao, Jiachen, Linong Wang, Qiushi Zhang et Bin Song. « Modeling of Positive Switching Impulse Discharge of UHV Transmission Line Air Gaps ». Applied Sciences 8, no 12 (12 décembre 2018) : 2594. http://dx.doi.org/10.3390/app8122594.
Texte intégralNakazawa, Masataka. « Proposal of multifunctional coherent Nyquist pulse and ultra-high-speed and high-efficiency optical transmission technology ». Impact 2020, no 2 (15 avril 2020) : 18–20. http://dx.doi.org/10.21820/23987073.2020.2.18.
Texte intégralThèses sur le sujet "Ultra-high towers"
Lupi, Francesca [Verfasser]. « A new aerodynamic phenomenon and its effects on the design of ultra-high cylindrical towers / Francesca Lupi ». Aachen : Shaker, 2013. http://d-nb.info/1049381718/34.
Texte intégralLupi, Francesca [Verfasser], et Udo [Akademischer Betreuer] Peil. « A new aerodynamic phenomenon and its effects on the design of ultra-high cylindrical towers / Francesca Lupi ; Betreuer : Udo Peil ». Braunschweig : Technische Universität Braunschweig, 2013. http://d-nb.info/1175821721/34.
Texte intégralPrice, Richard John. « Ultra-high-resolution spectroscopy of the ISM towards Orion ». Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252156.
Texte intégralBarreto, Suzana Maria. « Towards autonomous sample positioning for ultra high vacuum chambers ». Thesis, Aberystwyth University, 2018. http://hdl.handle.net/2160/77e7f40d-eb63-4062-bc1f-e5e4e7d102a9.
Texte intégralSoliman, Nancy. « Development of ultra-high-performance concrete (UHPC) using waste glass materials ─ towards innovative eco-friendly concrete ». Thèse, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9451.
Texte intégralAbstract : Conventional concrete (CC) may cause numerous problems on concrete structures such as corrosion of steel reinforcement and weaknesses of concrete construction. As a result, most of structures made with CC require maintenance. Ultra-high-performance concrete (UHPC) can be designed to eliminate some of the characteristic weaknesses of CC. UHPC is defined worldwide as concrete with superior mechanical, ductility, and durability properties. Conventional UHPC includes between 800 and 1000 kg/m³ of cement particles, 25–35%wt of silica fume (SF), 0–40 wt% of quartz powder (QP), and 110–140 wt% quartz sand (QS) (the percentages are based on the total cement content of the mix by weight). UHPC contains steel fibers to improve its ductility and tension capacity. The huge amount of cement used to produce UHPC not only affects production costs and consumes natural resources, limestone, clay, coal, and electric power, but it also negatively impacts the environment through carbon dioxide (CO[subscript 2]) emissions, which can contribute to the greenhouse effect. Additionally, the particle-size distribution (PSD) of cement exhibits a gap at the micro scale that needs to be filled with more finer materials such as SF. Filling this gap solely with SF requires a high amount of SF (25% to 30% by cement weight) which is a limited resource and involves high cost. This significantly also decreases UHPC workability due to high Blaine surface area of SF. QS and QP use is also costly and consumes natural resources. As such, they are considered as impedances for wide use of UHPC in the concrete market and fail to satisfy sustainability requirements. Furthermore, based on an Environment Canada report, quartz causes immediate and long-term environmental harm because its biological effect makes it an environmental hazard. Furthermore, UHPC is generally sold on the market as a prepackaged product, which limits any design changes by the user. Moreover, it is normally transported over long distances, unlike CC components. This increases to the greenhouse-gas effect and leads to higher cost of the final product. Therefore, there is a vital need for other locally available materials with similar functions to partially or fully replace silica fume, quartz sand, or quartz powder, and thereby reduce the cement content in UHPC, while having comparable or better properties. In some countries, and Canada in particular, large quantities of glass cannot be recycled because of the high breaking potential, color mixing, or high recycling costs. Most waste glass goes into landfill sites, which is undesirable since it is not biodegradable and less environmentally friendly. In recent years, attempts have been made to use waste glass as an alternative supplementary cementitious material (ASCM) or ultra-fine aggregate in concrete, depending on its chemical composition and particle-size distribution (PSD). This thesis is based on a new type of ecological ultra-high-performance glass concrete (UHPGC) developed at the Université de Sherbrooke. The concrete’s design involved using waste glass of varying particle-size distributions obtained from cullets and optimizing the packing density of the entire material matrix. UHPGC can be designed with a reduced amount of cement (400–800 kg/m³), silica fume (SF) (50–220 kg/m³), quartz powder (QP) (0–400 kg/m³), and quartz sand (QS) (0–1200 kg/m³), while incorporating various waste-glass products: glass sand (GS) (0–1200 kg/m³) with an average mean diameter (d[subscript 50]) of 275 μm, a high amount of glass powder (GP) (200–700 kg/m³) with average diameter (d[subscript 50]) of 11 μm, a moderate content of fine glass powder (FGP) (50–200 kg/m³) with d[subscript 50] of 3.8 μm. UHPGC also contains steel fibers (to increase tensile strength and improve ductility) and superplasticizer (10–60 kg/m³) as well as having a water-to-binder ratio (w/b) as low as that of UHPC. Replacing cement and silica-fume particles with non-absorptive and smooth glass particles improves UHPGC rheology. Furthermore, using FGP as a SF replacement reduces the net total surface area of a SF and FGP blend. This decreases the net particle surface area, it reduces the water needed to lubricate particle surfaces and increases the slump flow at the same w/b. Moreover, the use of waste glass material in concrete leads to lower cumulative heat of hydration, which helps minimize potential shrinkage cracking. Depending on UHPGC composition and curing temperature, this type of concrete yields compressive strength ranging from 130 up to 230 MPa, flexural strength above 20 MPa, tensile strength above 10 MPa, and elastic modulus above 40 GPa. The mechanical performance of UHPGC is enhanced by the reactivity of the amorphous waste glass and optimization of the packing density. The waste-glass products in UHPGC have pozzolanic behavior and react with the portlandite generated by cement hydration. This, however, is not the case with quartz sand and quartz powder in conventional UHPC, which react at high temperature of 400 °C. The waste-glass addition enhances clogging of the interface between particles. Waste-glass particles have high rigidity, which increases the concrete’s elastic modulus. UHPGC also has extremely good durability. Its capillary porosity is very low, and the material is extremely resistant to chloride-ion permeability (≈ 8 coulombs). Its abrasion resistance (volume loss index) is less than 1.3. UHPGC experiences virtually no freeze–thaw deterioration, even after 1000 freeze–thaw cycles. After laboratory assessment, the developed concrete was scaled up with a pilot plane and field validation with the construction of two footbridges as a case study. The higher mechanical properties allowed for the footbridges to be designed with about sections reduced by 60% compared to normal concrete. UHPGC offers several economic and environmental advantages. It reduces the production cost of ultra-high-performance concrete (UHPC) by using locally available materials and delivers a smaller carbon footprint than conventional UHPC structures. It reduces the CO[subscript 2] emissions associated with the production of cement clinkers (50% replacement of cement) and efficiently uses natural resources. In addition, high amounts of waste glass cause environmental problems if stockpiled or sent to landfills. Moreover, the use of waste glass in UHPGC could save millions of dollars that would otherwise be spent for treatment and placing waste glass in landfills. Lastly, it provides an alternative solution to the construction companies in producing UHPC at lower cost.
Graf, Kay. « Experimental studies within ANTARES towards acoustic detection of ultra-high energy neutrinos in the deep-sea ». kostenfrei, 2008. http://deposit.d-nb.de/cgi-bin/dokserv?idn=989212777.
Texte intégralLeroi, Lisa. « Quantitative MRI : towards fast and reliable T₁, T₂ and proton density mapping at ultra-high field ». Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS429/document.
Texte intégralQuantitative MRI refers to methods able to measure different physical parameters accessible in Nuclear Magnetic Resonance. It offers benefits compared to weighting imaging commonly used, for the detection, the pathophysiological characterization but also for the therapeutic follow-up of pathologies for example. Despite this long-established potential, these methods remain little used in clinical routine. The main reason is the long acquisition time compared to the classical approach. The physical parameters that we will study more particularly are the longitudinal (T₁), transverse (T₂) relaxation time, the apparent diffusion coefficient (ADC), and the proton density (DP). Despite the possibility to achieve a better image quality, these in vivo mappings are virtually non-existent in the literature beyond 3T because their implementation requires overcom-ing a number of specific ultra-high-field (UHF) MRI limits. Through this thesis project, a Quantitative Imaging method using Configuration States (QuICS) was implemented under strong UHF constraints, to determine these parameters simultaneously. The technique has been optimized to obtain fast and reliable maps. The potential of the method was first demon-strated in vitro on a nucleus such as sodium, exhibiting complex properties. As a second step, acquisitions were performed in proton, in vivo, in an clinically-relevant acquisition time, compatible with a routine use at 7T for population imaging. The application of such a method of quantitative MRI to UHF will open new research possibilities for the future
Sato, Ai. « Technological approaches for controlling foaming properties of food proteins toward on-site consumption ». Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263709.
Texte intégralLyberis, Haris. « Study of the ultra-high energy cosmic rays with the Pierre Auger Observatory : towards observations of anisotropies in arrival directions ? » Paris 7, 2011. http://www.theses.fr/2011PA077099.
Texte intégralThis thesis concerns the study anisotropies of UHECRs observed by the Pierre Auger Observatory. R&D was done to increase of the dynamical range of Hamamatsu PMTs using the technique based on the reading out of deeper dynodes, reaching 20 bits. To increase the statistics at high energy, a relax trigger selection was designed to be used in further Auger data analysis. Further, point sources were searched in direction of the Galactic Center and Centaurus A. We also developed a new method for searching for anisotropies without relying on any catalog that provides the clustering scale and an analytical way to compute the chance probability. Using it, we place important limits on the density of sources and the deflections of the extra-galactic cosmic rays. In the low energy range, we performed a first harmonic analysis using a new method to account for detector effects. Upper bounds were given above 1 EeV with an indication of a signal at all energies pointed out by the smooth transition of the phase. Finally, using both a numerical method to solve the diffusion equation in a simplified galactic magnetic field mo-del and Monte Carlo simulations, we compare the resulting anisotropy with the possible one, studying also relaxing some hypothesis (stationary sources, isotropic emission)
Yuan, Junhua Filippone Bradley. « Progress towards a high precision measurement of the neutron spin--electron angular correlation in polarized neutron beta decay with ultra-cold neutrons / ». Diss., Pasadena, Calif. : Caltech, 2006. http://resolver.caltech.edu/CaltechETD:etd-01302006-153024.
Texte intégralChapitres de livres sur le sujet "Ultra-high towers"
Scoville, Nick. « Ultra-Luminous IR Galaxies at Low and High Redshift ». Dans Toward a New Millennium in Galaxy Morphology, 367–79. Dordrecht : Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4114-7_28.
Texte intégralLi, Rongxin, Dadong Wang, Changming Sun, Ryan Lagerstrom, Hai Tan, You He et Tiqiao Xiao. « Towards Automated Quantitative Vasculature Understanding via Ultra High-Resolution Imagery ». Dans Signal and Image Analysis for Biomedical and Life Sciences, 177–89. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10984-8_10.
Texte intégralYu, Xin, Peng Dai, Wenbo Li, Lan Ma, Jiajun Shen, Jia Li et Xiaojuan Qi. « Towards Efficient and Scale-Robust Ultra-High-Definition Image Demoiréing ». Dans Lecture Notes in Computer Science, 646–62. Cham : Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-19797-0_37.
Texte intégralWeyers, Megan, et Elsabe P. Kearsley. « Effect of High Plasticiser Dosage on Ultra High-Performance Fibre Reinforced Concrete (UHPFRC) ». Dans 3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete, 248–55. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33342-3_27.
Texte intégralDixit, Anjaneya, Souradeep Gupta, Sze Dai Pang et Harn Wei Kua. « Cement Replacement and Improved Hydration in Ultra-High Performance Concrete Using Biochar ». Dans 3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete, 222–29. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33342-3_24.
Texte intégralRajendran, K., A. Kitoh et S. Sajani. « Ultra-high Resolution Global Model Climate Change Projection for India : Towards a Data Intensive Paradigm ». Dans Geospatial Technologies and Climate Change, 219–38. Cham : Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01689-4_13.
Texte intégralAli, Sharib, Martin Schober, Philipp Schlömer, Katrin Amunts, Markus Axer et Karl Rohr. « Towards Ultra-High Resolution 3D Reconstruction of a Whole Rat Brain from 3D-PLI Data ». Dans Connectomics in NeuroImaging, 1–10. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00755-3_1.
Texte intégralJabbar, Sarah, Farzad Hejazi, Mohd Saleh Jaafar et R. S. M. Rashid. « Seismic Behaviour of Prestressed and Normal Reinforcement of Communication Tower with Ultra-High Performance Concrete, High Strength Concrete and Normal Concrete Materials ». Dans GCEC 2017, 579–94. Singapore : Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8016-6_45.
Texte intégralQuast, Tatjana, Guido Bartl et René Schödel. « Extending the Capabilities of PTB’s Ultra-Precision Interferometer towards the Measurement of Piezoelectric Strain at High Temperatures ». Dans Fringe 2013, 539–41. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-36359-7_97.
Texte intégralCintas, Maria Dolores Rubio, Miguel José Oliveira, Elisa M. J. Silva, Maria Eugenia Parron, Francisca Pérez García et Manuel Alejandro Fernandez Ruiz. « Sustainable Development of an Ultra-High Performance Fibber Reinforced Concrete (UHPFRC) : Towards Partial Replacement of Cement by Slags ». Dans INCREaSE 2019, 836–49. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30938-1_65.
Texte intégralActes de conférences sur le sujet "Ultra-high towers"
Hao, Chen, Yi Liming, Xu Zhengtao et Fang Qing. « Study on computer modeling and calculation of 500kV ultra-high voltage transmission towers ». Dans 2021 IEEE International Conference on Emergency Science and Information Technology (ICESIT). IEEE, 2021. http://dx.doi.org/10.1109/icesit53460.2021.9696674.
Texte intégralLupi, Francesca, Claudio Borri, Hans Juergen Niemann et Udo Peil. « A New Aerodynamic Phenomenon and Its Effects on the Design of Ultra-High Cylindrical Towers ». Dans Eighth Asia-Pacific Conference on Wind Engineering. Singapore : Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-8012-8_240.
Texte intégralWang, Shenli, Yongchun Weng, Peng Liu, Zifeng Fu, Zirong Liao, Li Huang et Chuntang Liu. « Study on Lightning Performance of Composite Cross-arm Towers in Ultra-High Voltage Transmission Lines Considering Multiple Factors ». Dans 2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO). IEEE, 2021. http://dx.doi.org/10.1109/aeero52475.2021.9708259.
Texte intégralSinger, Cs, R. Buck, R. Pitz-Paal et H. Mu¨ller-Steinhagen. « Assessment of Solar Power Tower Driven Ultra Supercritical Steam Cycles Applying Tubular Central Receivers With Varied Heat Transfer Media ». Dans ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90476.
Texte intégralKoike, Yasuhiro. « Advanced photonics polymer for real color imaging systems towards 8K era (Conference Presentation) (Withdrawal Notice) ». Dans Ultra-High-Definition Imaging Systems, sous la direction de Toyohiko Yatagai, Yasuhiro Koike et Seizo Miyata. SPIE, 2019. http://dx.doi.org/10.1117/12.2300756.
Texte intégralKoike, Yasuhiro, et Kenta Muramoto. « Recent progress in high-bandwidth and low-noise GI POF toward UHD era ». Dans Ultra-High-Definition Imaging Systems V, sous la direction de Toyohiko Yatagai, Yasuhiro Koike et Seizo Miyata. SPIE, 2022. http://dx.doi.org/10.1117/12.2610605.
Texte intégralEllis, A. D. « Ultra high speed OTDM over standard fibre ». Dans IEE Colloquium : `Towards Terabit Transmission'. IEE, 1995. http://dx.doi.org/10.1049/ic:19950720.
Texte intégralMoodie, D. G. « Electroabsorption modulators for ultra high speed OTDM systems ». Dans IEE Colloquium : `Towards Terabit Transmission'. IEE, 1995. http://dx.doi.org/10.1049/ic:19950715.
Texte intégralXiao, Keli, Yanjun Jin, Aijia Zou, Lin Li et Wei He. « The Scheme Design of ‘Bi-Speed Bicycle Viaduct’ Demonstration Line ». Dans IABSE Conference, Kuala Lumpur 2018 : Engineering the Developing World. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0909.
Texte intégralVandenbroucke, J., N. Lehtinen, Y. Zhao et G. Gratta. « Acoustic detection of ultra-high energy neutrinos ». Dans Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492). IEEE, 2003. http://dx.doi.org/10.1109/oceans.2003.178058.
Texte intégralRapports d'organisations sur le sujet "Ultra-high towers"
Bin Wang. Towards Scalable Cost-Effective Service and Survivability Provisioning in Ultra High Speed Networks. Office of Scientific and Technical Information (OSTI), décembre 2006. http://dx.doi.org/10.2172/902986.
Texte intégralHoward, Isaac, Thomas Allard, Ashley Carey, Matthew Priddy, Alta Knizley et Jameson Shannon. Development of CORPS-STIF 1.0 with application to ultra-high performance concrete (UHPC). Engineer Research and Development Center (U.S.), avril 2021. http://dx.doi.org/10.21079/11681/40440.
Texte intégralBartels, Ludwig. Surface Reactions Following Ultra Fast Substrate Excitation : A Path Towards Atomic Scale Resolution of High-temperature Reactions at Metal Surfaces. Fort Belvoir, VA : Defense Technical Information Center, février 2010. http://dx.doi.org/10.21236/ada564034.
Texte intégralClaus, Ana, Borzooye Jafarizadeh, Azmal Huda Chowdhury, Neziah Pala et Chunlei Wang. Testbed for Pressure Sensors. Florida International University, octobre 2021. http://dx.doi.org/10.25148/mmeurs.009771.
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