Academic literature on the topic 'TKD on-axis'

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Journal articles on the topic "TKD on-axis"

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Shen, Yitian, Jingchao Xu, Yongsheng Zhang, et al. "Spatial Resolutions of On-Axis and Off-Axis Transmission Kikuchi Diffraction Methods." Applied Sciences 9, no. 21 (2019): 4478. http://dx.doi.org/10.3390/app9214478.

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Spatial resolution is one of the key factors in orientation microscopy, as it determines the accuracy of grain size investigation and phase identification. We determined the spatial resolutions of on-axis and off-axis transmission Kikuchi diffraction (TKD) methods by calculating correlation coefficients using only the effective parts of on-axis and off-axis transmission Kikuchi patterns. During the calculation, we used average filtering to evaluate the spatial resolution more accurately. The spatial resolutions of both on-axis and off-axis TKD methods were determined in the same scanning elect
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Brodu, Etienne, Emmanuel Bouzy, Jean-Jacques Fundenberger, Julien Guyon, Antoine Guitton, and Yudong Zhang. "On-axis TKD for orientation mapping of nanocrystalline materials in SEM." Materials Characterization 130 (August 2017): 92–96. http://dx.doi.org/10.1016/j.matchar.2017.05.036.

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Ernould, Clément, Benoît Beausir, Jean-Jacques Fundenberger, Vincent Taupin, and Emmanuel Bouzy. "Characterization at high spatial and angular resolutions of deformed nanostructures by on-axis HR-TKD." Scripta Materialia 185 (August 2020): 30–35. http://dx.doi.org/10.1016/j.scriptamat.2020.04.005.

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Ernould, Clément, Benoît Beausir, Jean-Jacques Fundenberger, Vincent Taupin, and Emmanuel Bouzy. "Global DIC approach guided by a cross-correlation based initial guess for HR-EBSD and on-axis HR-TKD." Acta Materialia 191 (June 2020): 131–48. http://dx.doi.org/10.1016/j.actamat.2020.03.026.

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Crouzier, Loïc, Nicolas Feltin, Alexandra Delvallée, et al. "Correlative Analysis of the Dimensional Properties of Bipyramidal Titania Nanoparticles by Complementing Electron Microscopy with Other Methods." Nanomaterials 11, no. 12 (2021): 3359. http://dx.doi.org/10.3390/nano11123359.

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In this paper, the accurate determination of the size and size distribution of bipyramidal anatase nanoparticles (NPs) after deposition as single particles on a silicon substrate by correlative Scanning Electron Microscopy (SEM) with Atomic Force Microscopy (AFM) analysis is described as a new measurement procedure for metrological purposes. The knowledge of the exact orientation of the NPs is a crucial step in extracting the real 3D dimensions of the particles. Two approaches are proposed to determine the geometrical orientation of individual nano-bipyramides: (i) AFM profiling along the long
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Wollschläger, Nicole, Ines Häusler, Erik Ortel, Vasile-Dan Hodoroaba, Laurie Palasse, and Kai Dirscherl. "Characterization of Porous, TiO2 Nanoparticle Films Using On-Axis TKD in SEM -a New Nano-Analysis Tool for a Large-Scale Application." Microscopy and Microanalysis 23, S1 (2017): 542–43. http://dx.doi.org/10.1017/s1431927617003397.

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Jiang, Qing, Yao Chen, Qi Shuai, et al. "Fatigue-Induced HCP-to-FCC Phase Transformation Resulting in Two FCC-Zr Variants in Pure Zirconium." Materials 16, no. 18 (2023): 6215. http://dx.doi.org/10.3390/ma16186215.

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This study utilized transmission electron microscopy (TEM) and on-axis transmission Kikuchi diffraction (TKD) to investigate the fatigue-induced HCP-to-FCC phase transformation in industrial pure zirconium under a stress ratio of R = 0.1. The results show that fatigue damages result from phase deformations during cyclic loadings. The fatigue-induced FCC-Zr phases exhibit a B-type orientation relationship with the HCP-Zr matrix. Notedly, due to the different growth directions of Shockley partial dislocations relative to nucleation points, there are two FCC-Zr variants after the HCP-to-FCC phase
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Chia, Joanne S. J., Jennifer L. McRae, Peter J. Cowan, and Karen M. Dwyer. "The CD39-Adenosinergic Axis in the Pathogenesis of Immune and Nonimmune Diabetes." Journal of Biomedicine and Biotechnology 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/320495.

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Diabetes mellitus encompasses two distinct disease processes: autoimmune Type 1 (T1D) and nonimmune Type 2 (T2D) diabetes. Despite the disparate aetiologies, the disease phenotype of hyperglycemia and the associated complications are similar. In this paper, we discuss the role of the CD39-adenosinergic axis in the pathogenesis of both T1D and T2D, with particular emphasis on the role of CD39 and CD73.
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Klemetti, Miira M., Sruthi Alahari, Martin Post, and Isabella Caniggia. "Distinct Changes in Placental Ceramide Metabolism Characterize Type 1 and 2 Diabetic Pregnancies with Fetal Macrosomia or Preeclampsia." Biomedicines 11, no. 3 (2023): 932. http://dx.doi.org/10.3390/biomedicines11030932.

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Disturbances of lipid metabolism are typical in diabetes. Our objective was to characterize and compare placental sphingolipid metabolism in type 1 (T1D) and 2 (T2D) diabetic pregnancies and in non-diabetic controls. Placental samples from T1D, T2D, and control pregnancies were processed for sphingolipid analysis using tandem mass spectrometry. Western blotting, enzyme activity, and immunofluorescence analyses were used to study sphingolipid regulatory enzymes. Placental ceramide levels were lower in T1D and T2D compared to controls, which was associated with an upregulation of the ceramide de
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Apelfröjd, S., and S. Eriksson. "Evaluation of Harmonic Content from a Tap Transformer Based Grid Connection System for Wind Power." Journal of Renewable Energy 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/190573.

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Simulations done in MATLAB/Simulink together with experiments conducted at the Ångströms laboratory are used to evaluate and discuss the total harmonic distortion (THD) and total demand distortion (TDD) of a tap transformer based grid connection system. The grid connection topology can be used with different turbine and generator topologies and is here applied on a vertical axis wind turbine (VAWT) with a permanent magnet synchronous generator (PMSG) and its operational scheme. The full variable-speed wind conversion system consists of a diode rectifier, DC link, IGBT inverter, LCL-filter, and
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Dissertations / Theses on the topic "TKD on-axis"

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Ernould, Clément. "Développement et application d’une méthode à haute résolution angulaire pour la mesure des gradients d’orientation et des déformations élastiques par microscopie électronique à balayage." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0225.

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La compréhension des mécanismes de déformation dans les matériaux cristallins passe par la caractérisation fine des microstructures. Dans le cadre de la microscopie électronique à balayage, la mesure précise des gradients d’orientation et des déformations élastiques du cristal est l’objectif des méthodes dites à haute résolution angulaire. Pour cela, elles emploient des techniques de corrélation d’images numériques afin de recaler les clichés de diffraction électronique. Cette thèse propose une méthode de recalage originale. Le champ de déplacement à l’échelle du scintillateur est décrit par u
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Comstock, John E. "Vertical Axis Rotation in the Silurian Hills: A Cenozoic Overprint on the Mesozoic U.S. Cordilleran Magmatic Arc." ScholarWorks@UNO, 1997. http://scholarworks.uno.edu/td/2241.

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New, detailed field work in the Silurian hills, southeast of Death Valley, reveals a pattern of a complex Cenozoic brittle fault overprint of rocks containing evidence of at least three episodes of Mesozoic thermal-ductile deformation. The Cenozoic brittle fault overprint of rocks containing evidence of at least three episodes of Mesozoic thermal-ductile formation. The Cenozoic faulting consists of five distinct sets of structures ordered by cross cutting relationships. The oldest, BF1, are fragments of reverse faults trending NW and dipping 45-60 SW. BF2 consist of NW trending, en echelon, si
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Low, Benjamin. "Design of a 3 axis wear testing device to evaluate the effect of slide to roll ratio on ultra high molecular weight polyethylene wear in total knee replacements." Thesis, University of Canterbury. Mechanical Engineering, 2005. http://hdl.handle.net/10092/1105.

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Multidirectional motion occurs in total knee replacements (TKR), is a major factor in ultra high molecular weight polyethylene (UHMWPE) wear and is a requirement for wear tester and simulators. There are three ways the femoral component can move relative to the tibial component; sliding, rolling and gliding and these are defined by the slide to roll ratio. Previous wear tester research has investigated the effects of multidirectional motion and slide to roll ratio, individually but not combined. The project aim was to design a machine that combined multidirectional motion with variable slide t
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Book chapters on the topic "TKD on-axis"

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Thahir, Muhammad, Ahmed Aly Naggar, Shaher Hasanain, et al. "Rotational Alignment of Tibial Component in Total Knee Arthroplasty." In Total Joint Arthroplasty - Challenges, Advances and Clinical Insights [Working Title]. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1010394.

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Despite the success of TKA, rotational alignment remains an unresolved issue. The rotational alignment of the femoral component in total knee arthroplasty is generally well understood. In contrast, there is considerable debate regarding the ideal rotational alignment for the tibial component. There are well-established femoral rotational reference axes, which include: the trans-epicondylar axis (TEA), the posterior condylar axis (PCA), the whiteside line grand piano sign. All are solid and reliable references. However, in tibia, TEA could not be projected on the tibia plateau. The rotational a
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Deie, Masataka, and Yuki Yamanashi. "Optimal Corrective Angle in Recent High Tibial Osteotomies." In Osteotomy Essentials - From Basic Techniques to Advanced Practices [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1007656.

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High tibial osteotomy (HTO) is a traditional surgical procedure for medial-type osteoarthritis of the knee. Recently, the procedure has evolved into a type of knee-preserving surgery. Minor correction HTO aims for a tibial correction angle of ≤15 degrees, a femorotibial angle (FTA) of 171 degrees, a medial tibial plateau angle of ≤90 degrees, and a % medial axis (%MA) of 55%. We have achieved good short-term clinical results by preserving as much cartilage and meniscus as possible. These results show high patient satisfaction and good clinical outcomes. We propose a new HTO concept that combin
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Hadjkacem, Sahar, Mohamed Ali Jemni, and Zied Driss. "Turbine Swirling Device Effect on LPG-H2 Engine In-Cylinder Flow Motion at Intake Stroke." In Mechanical Engineering Technologies and Applications: Volume 3. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815179279123030006.

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The main issue of internal combustion (IC) engines is efficiency. Engine inlet systems should be carefully designed to provide an optimum flow to the cylinder. Inlet manifold design is one of the ways to increase efficiency. This study focuses on improving the inlet system of an LPG-H2 fueled engine by adding a static inclined blade turbine. It is a horizontal rotational axis turbine with four blades evenly distributed with an angle of inclination of 35°. Computational Fluid Dynamics (CFD) simulations are used in order to capture the in-cylinder flow motion and its influence on the flow charac
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Rocha, Lizandra Viana Maurat da, Paulo Sergio Rangel Cruz da Silva, and Maria Inês Bruno Tavares. "Comparative Study Of Poly (Butylene Adipate Co-Terephthalate) Nanocomposites With Zinc And Molybdenum Oxides." In COLLECTION OF INTERNATIONAL TOPICS IN HEALTH SCIENCE- V1. Seven Editora, 2023. http://dx.doi.org/10.56238/colleinternhealthscienv1-122.

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studies on nanocomposites of biodegradable polymers such as polybutylene adipate co-terephthalate (PBAT) are justified. This polymer is certified for composting; it is printable, suitable for food contact, water resistant, and performs similarly to polyethylene[1, 2] . Metal oxide nanoparticles (NPs) such as MoO3 and ZnO are potential fillers to, in addition to improving mechanical properties, confer antimicrobial, anti-UV activity and modulate the biodegradability of polymer matrices such as that of PBAT[3, 4, 5] . The effects of different concentrations of ZnONPs were observed and compared t
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Conference papers on the topic "TKD on-axis"

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Goran, Daniel, Thomas Schwager, and Alice Bastos DaSilva Fanta. "Recent Developments for the Characterization of Crystals and Defects at the Nanoscale using On-Axis TKD in SEM." In ISTFA 2021. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.istfa2021p0217.

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Abstract In this paper, we describe the technique of on-axis transmission Kikuchi diffraction (TKD) in a scanning electron microscope and demonstrate its use in characterizing nanoscale crystal structures and defects in semiconductor materials and devices. We explain how we modified hardware and software to achieve an effective spatial resolution of 2 nm during orientation mapping without decreasing acquisition speed, indexing quality, and other performance parameters. The paper includes illustrations comparing sample-detector geometries for conventional EBSD, TKD, and on-axis TKD. It also pre
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Ernould, Clément. "A novel High-angular Resolution “on-axis” Transmission Kikuchi Diffraction (HR-TKD) technique for the fine characterization of deformed nanostructures in the SEM." In European Microscopy Congress 2020. Royal Microscopical Society, 2021. http://dx.doi.org/10.22443/rms.emc2020.230.

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Lowdon, Ross, Sjoerd Brands, Mahmoud ElGizawy, and Sheldon Rawlins. "Rotating 6 Axis Survey Measurement and it's Effect on True Vertical Depth Accuracy, a Study of Sag Correction and Misalignment While Drilling." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210184-ms.

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Abstract Definitive dynamic 6 axis surveys provide continuous MWD quality measurement while drilling. This poses a challenge in terms of misalignment (relative to the borehole) correction when compared to traditional static survey measurements where misalignments are well understood and can be easily compensated for. The increased frequency of surveys allows for the possibility of significant systematic TVD errors if a static misalignment (SAG) error is applied unilaterally to the definitive dynamic surveys. This paper outlines how we can measure misalignment in definitive dynamic surveys, wha
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Trehan, Rachel, and Bhaskar Roy. "Investigation of Turbine Cascade Blades With Part-Span Sweep With an Open End." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95314.

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The present paper focuses on a low-speed computational investigation into the application of backward sweep for application on a typical low-pressure turbine rotor blade. A quasi-two-dimensional linear cascade using T106 profile, was investigated using flow solver Star-CCM+®. Three backward-swept tip modifications (axial sweep, tangential sweep, and a combination of both) have been applied to the baseline profile from 90%–100% span, the rest of the 90% of the blade remained straight and orthogonal to the cascade mainstream flow. The blade stacking axis near the tip was shifted away from the ma
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Gu, Yu S., Joshua D. Roth, Stephen M. Howell, and Maury L. Hull. "How Frequently Do Five Total Arthroplasty Methods Change the Alignment of the Joint Lines and Limb From Normal?" In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80477.

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One strategy for aligning the limb and positioning components in total knee arthroplasty (TKA) in the coronal plane is mechanical alignment, which has the goal of positioning the center of the hip, knee, and ankle on a straight-line by establishing a femoral and tibial joint line at the knee that is perpendicular to the mechanical axis of the femur and tibia respectively. Another strategy is gap balancing, which has the goal of creating equal gaps between the medial and lateral compartments at 0° of extension and 90° of flexion.
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Meingast, Markus, Robert E. Kielb, and Jeffrey P. Thomas. "Preliminary Flutter Design Method for Supersonic Low Pressure Turbines." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59177.

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The “Tie-Dye” (TD) method is a well-known preliminary flutter design method for subsonic low pressure turbine (LPT) blades. In this paper, a study of 2D mode shape sensitivity using the TD-method for supersonic exit Mach numbers is presented. Using a harmonic balance CFD method, TD maps displaying the critical reduced frequency for a range of pitching axis locations were created. The TD method was run on two geometrically different blades. Subsonically, the characteristic appearance does not change much over airfoil types. An even lesser amount of morphing can be observed between the different
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Hargett, Zachary, Manuel Gutierrez, and Melinda Harman. "Verification of Manual Digitization Methods During Experimental Simulation of Knee Motion." In ASME 2019 Verification and Validation Symposium. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/vvs2019-5158.

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Abstract Cadaveric testing is a common approach for verifying mathematical models used in computational modeling work. In the case of a knee joint model for calculating ligament tension during total knee replacement (TKR) motion, model inputs include rigid body motions defined using the Grood-Suntay coordinate system as a spatial linkage between the tibial component orientation relative to the femoral component. Using this approach requires the definition of coordinate systems for each rigid TKR component (i.e. tibial and femoral) based on fiducial points, manual digitization of a point cloud
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Swanson, William H., Joel Pokorny, and Vivianne C. Smith. "Phase-dependent sensitivity to heterochromatic flicker: subject differences in color-normal males." In OSA Annual Meeting. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.my6.

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We measured sensitivity to sinusoidal temporal modulation as a function of the relative phase of two equally luminant chromatic sources. We previously reported data for three observers at a range of temporal frequencies (OSA 1985); now we report data for a range of observers at a single temporal frequency. The stimuli were presented in a two-channel Maxwellian view system employing red (625-nm) and green (564-nm) light-emitting diodes (LEDs). The two sources were matched by heterochromatic flicker photometry, and their mixture was metameric to ~600 nm. The radiance of the LEDs was controlled b
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Mago, V. K., Putcha Venkateswarlu, Ali Miahnahri, P. Chandra Sekhar, and M. C. George. "Parametric study of coherent beam coupling through pulsations and oscillations in self-pumped phase conjugation and transmission." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.mhh2.

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Two horizontally polarized coherent beams, A1 and A2, from a He:Ne laser cross in an electrically poled BaTiO3 crystal. The crystal is adjusted so that at least one of the two beams pulsates/oscillates in self-pumping. Energy transfer between the two beams is analyzed with the help of four simultaneously recorded signals, for both individual pumping and simultaneous pumping, under different conditions. A beam (e.g., A1) can be diffracted in the directions of (1) the transmit ted beam (A2T) of the second beam, (2) the phase conjugate (A*2) of the second beam, and (3) the phase conjugate (A*1) o
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Yeh, Tsaiyao, Vivianne C. Smith, and Joel Pokorny. "Data and theory of colorimetric purity discrimination." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.thdd4.

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We developed a model using the critical axes from Boynton and Kambe to describe the discrepancy in purity-discrimination data measured from white, ΔP(white), and from the spectrum, ΔP(spectrum). In this study, we used a computer-controlled four-channel Maxwellian view system to investigate the model predictions. For five normal observers, we measured chromatic discrimination steps along the tritan and R/G axis, purity-discrimination functions from white (0.3536,0.3545), and purity-discrimination functions from the spectrum. A double-random staircase, temporal forced-choice paradigm was used. T
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Reports on the topic "TKD on-axis"

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Ndubuaka, Kachi. PR676-233801-R09 Pipe Vulnerability Analysis Methodology. Pipeline Research Council International, Inc. (PRCI), 2025. https://doi.org/10.55274/r0000142.

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Continuous buried pipelines are generally required to traverse long distances and as such, inevitably pass through unstable landforms which may impart critical levels of stress beyond the intrinsic capacity of the pipelines. The deformational response of buried pipelines subject to relative ground movement is strongly influenced by the geotechnical properties of the immediate backfill and surrounding soil, the size and direction of the soil movement in which the pipeline is embedded, as well as mechanical soil-pipe interaction behavior. With respect to the mode of deformation, relative ground
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