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1

Spagnol, Joseph, Helen Wu, and Chunhui Yang. "Application of Non-Symmetric Bending Principles on Modelling Fatigue Crack Behaviour and Vibration of a Cracked Rotor." Applied Sciences 10, no. 2 (2020): 717. http://dx.doi.org/10.3390/app10020717.

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Many studies on cracked rotors developed crack breathing models that assume that the neutral axis of bending always remains horizontal for simplification. These models may generate significant discrepancies and thus there is a need to develop more sophisticated models to look into the shifting of the neutral axis for a cracked rotor. Herein, a case study on the shifting of the neutral axis for a cracked rotor is firstly performed by using a three-dimensional finite element model to confirm that the neutral axis becomes inclined as the cracked rotor rotates. In response to this finding, non-sym
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2

Engel, Bernd, and Hassan Raheem Hassan. "Investigation of Neutral Axis Shifting in Rotary Draw Bending Processes for Tubes." steel research international 85, no. 7 (2014): 1209–14. http://dx.doi.org/10.1002/srin.201300333.

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3

Kim, Jaeyoung, Jensen K. Henry, Ji-Beom Kim, and Woo-Chun Lee. "Dome Supramalleolar Osteotomies for the Treatment of Ankle Pain with Opposing Coronal Plane Deformities Between Ankle and the Lower Limb." Foot & Ankle International 43, no. 4 (2021): 474–85. http://dx.doi.org/10.1177/10711007211050639.

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Background: The dome-type osteotomy is a powerful technique for deformity correction of the limb. However, there is limited information about the utility of dome supramalleolar osteotomy (SMO) in ankle joint preservation surgery. This study aimed to describe the technique and indications for dome SMO in distal tibial malalignment. Methods: Twenty-three patients (23 ankles) who underwent dome SMO with a 2-year follow-up were reviewed. Dome SMO was indicated when there were opposing deformities in the ankle and lower limb mechanical axis (ie, varus ankle deformity with valgus lower limb alignmen
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4

Volkmann, Janeke F., Richard S. Walls, and Nico de Koker. "Implementation of the fire beam element method into OpenSees for the analysis of structures in fire." Advances in Structural Engineering 23, no. 15 (2020): 3239–50. http://dx.doi.org/10.1177/1369433220933451.

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The fire beam element method is a tool for structural fire analyses that simplifies a structure into a skeletal frame consisting of only beam and column elements. It considers a shifting neutral axis of each beam element, which is updated throughout an analysis. This method was implemented in the OpenSees software environment by adding two subclasses: one for the fire beam element added to the element class, and one for the member section, in which the neutral axis is iteratively adjusted for non-uniform temperature profiles. To validate the implemented model, three benchmark case studies were
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5

Hugues, Aurélien, Amandine Guinet-Lacoste, Sylvie Bin, et al. "Effects of prismatic adaptation on balance and postural disorders in patients with chronic right stroke: protocol for a multicentre double-blind randomised sham-controlled trial." BMJ Open 11, no. 11 (2021): e052086. http://dx.doi.org/10.1136/bmjopen-2021-052086.

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IntroductionPatients with right stroke lesion have postural and balance disorders, including weight-bearing asymmetry, more pronounced than patients with left stroke lesion. Spatial cognition disorders post-stroke, such as misperceptions of subjective straight-ahead and subjective longitudinal body axis, are suspected to be involved in these postural and balance disorders. Prismatic adaptation has showed beneficial effects to reduce visuomotor disorders but also an expansion of effects on cognitive functions, including spatial cognition. Preliminary studies with a low level of evidence have su
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6

Azimi, Milad, and Samad Moradi. "Nonlinear Dynamic and Stability Analysis of an Edge Cracked Rotating Flexible Structure." International Journal of Structural Stability and Dynamics 21, no. 07 (2021): 2150091. http://dx.doi.org/10.1142/s0219455421500917.

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The Homotopy Perturbation Method (HPM) is applied to investigate the nonlinear free and forced vibration behavior of the rotating cracked beam. Nonlinear governing equations considering the two-dimensional (2D) large flexible structure in a rotating reference frame considering centrifugal forces are obtained by the Lagrangian approach and the Assumed Mode Method (AMM). The crack is modeled as an elastic nonlinear massless rotational spring, which divides the beam into two parts. The Rayleigh–Ritz method is used to discretize the governing system of equations of the motion. Stability analysis a
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7

Zhou, Jiale, Chuanxi Li, Lu Ke, Jun He, and Zhifeng Wang. "Experimental Study on Loading Capacity of Glued-Laminated Timber Arches Subjected to Vertical Concentrated Loads." Advances in Civil Engineering 2020 (May 22, 2020): 1–9. http://dx.doi.org/10.1155/2020/7987414.

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Glued-laminated timber arches are widely used in gymnasiums, bridges, and roof trusses. However, studies on their mechanical behaviours and design methods are still insufficient. This paper investigates the in-plane loading capacity of circular glued-laminated timber arches made of Douglas fir. Experiments were conducted on four timber-arch models with different rise-to-span ratios under concentrated loads at mid-span and quarter-point locations. The structural responses, failure modes, and loading capacity of the timber arch specimens were obtained. The results show that the timber arches pre
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8

Rahmani, Farshad, Reza Kamgar, and Reza Rahgozar. "Finite Element Analysis of Functionally Graded Beams using Different Beam Theories." Civil Engineering Journal 6, no. 11 (2020): 2086–102. http://dx.doi.org/10.28991/cej-2020-03091604.

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The present study deals with buckling, free vibration, and bending analysis of Functionally Graded (FG) and porous FG beams based on various beam theories. Equation of motion and boundary conditions are derived from Hamilton’s principle, and the finite element method is adopted to solve problems numerically. The FG beams are graded through the thickness direction, and the material distribution is controlled by power-law volume fraction. The effects of the different values of the power-law index, porosity exponent, and different boundary conditions on bending, natural frequencies and buckling c
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9

Grazzini, Rebecca, Giulia Misseri, and Luisa Rovero. "A Bi-Modulus Material Model for Bending Test on NHL3.5 Lime Mortar." Materials 16, no. 2 (2023): 486. http://dx.doi.org/10.3390/ma16020486.

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The research provides an innovative contribution to the interpretation of three-point and four-point bending tests on mortars by employing a bi-modulus material model, which assumes an asymmetric constitutive law, i.e., different elastic moduli in tension and in compression. To this aim, Euler–Bernoulli and Timoshenko bi-modulus beam models are defined, and the related displacement fields are reported for three-point loading, and provided for the first time for the four-point bending layout. A wide experimental campaign, including uni-axial tensile and compressive tests, three-point and four-p
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10

Akhilesh, Sharma, Sakalle Rashmi, and Tiwari Nitin. "Comparative Analysis Of Beam Using Timo Shenko Method & Eulers Elementry Beam Theory - A Review." Journal of Ceramics and Concrete Sciences 4, no. 1 (2019): 1–3. https://doi.org/10.5281/zenodo.2530573.

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Behavior of beam depends on its depth. A beam is considered as deep, if the span to depth ratio is 2 or less for simply supported beam and 2.5 or less for continuous beam. In the present work the analytical study of simply supported deep beams subjected to uniformly distributed load by using Timoshenko theory to study the behavior of deep beam by considering flexural stress, flexural strain, normal stress and shear stress variations at different sections for various effective lengths to depth ratio and compare with Euler-Bernoulli Theory. After analysis it is observed that the deep beam action
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11

Mutafi, Ayad, Noorfaizal Yidris, Seyed Saeid Rahimian Koloor, and Michal Petrů. "Numerical Prediction of Residual Stresses Distribution in Thin-Walled Press-Braked Stainless Steel Sections." Materials 13, no. 23 (2020): 5378. http://dx.doi.org/10.3390/ma13235378.

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Stainless steels are increasingly used in construction today, especially in harsh environments, in which steel corrosion commonly occurs. Cold-formed stainless steel structures are currently increasing in popularity because of its efficiency in load-bearing capacity and its appealing architectural appearance. Cold-rolling and press-braking are the cold-working processes used in the forming of stainless steel sections. Press braking can produce large cross-sections from thin to thick-walled sections compared to cold-rolling. Cold-forming in press-braked sections significantly affect member beha
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12

Huang, Zheng-Ming, K. Fujihara, and S. Ramakrishna. "Bending Failure Characterisation of Laminated Beams with Braided Fabric Reinforcement." Advanced Composites Letters 12, no. 3 (2003): 096369350301200. http://dx.doi.org/10.1177/096369350301200301.

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An experimental procedure has been performed in this work to characterise failure behaviour of braided fabric reinforced composite laminates subjected to flexural load. The material system used was carbon/epoxy. The laminated beams were made using eight layers of diamond braid reinforcement. Two braiding angles, i.e., 5° and 15°, were applied. Six beams with laminate arrangements of [5/5/5/5/5/5/5/5], [15/15/15/15/15/15/15/15], [5/5/15/15/15/15/5/5], [15/15/5/5/5/5/15/15], [5/5/15/15/5/5/15/15], and [15/15/5/5/15/15/5/5] were loaded under 4-point bending to their ultimate failure, where the br
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13

Ting, Arthur J., Richard R. Tarr, Augusto Sarmiento, Ken Wagner, and Charles Resnick. "The Role of Subtalar Motion and Ankle Contact Pressure Changes from Angular Deformities of the Tibia." Foot & Ankle 7, no. 5 (1987): 290–99. http://dx.doi.org/10.1177/107110078700700505.

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It is a well known entity that fractures of the tibia heal with some component of angular deformity. Ankle and subtalar joints may compensate for small degrees of angular deformities, but the exact amount of malunion that can be accepted without development of late sequalae has yet to be determined. Two recent studies from this institution have concluded that (1) contact changes at the tibiotalar joint tend to be greater with distal third tibial fracture deformities compared to proximal and middle with the ankle in neutral, 5° dorsiflexion, and 20° of plantar flexion. (2) Anterior and posterio
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14

Sirotkin, Yuri. "The Space-Time Continuum in the Postmodern Paradigm: J. Deleuze (1926–1995)." Logos et Praxis, no. 3 (December 2021): 49–59. http://dx.doi.org/10.15688/lp.jvolsu.2021.3.6.

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According to the author, J. Deleuze enriches the postmodern paradigm of space-time continuum analysis with original ideas about space, time, and duration (extension) as properties of the world. Psychologism in the interpretation of time-space is indicated. Time is interpreted as a relation, the sign of which is becoming. Attention is drawn to the fact that processality is provided by eventfulness; events have specific differences and act as neutral singularities that form history. It is noted that time is personal and events as signs and relationships are actualized in the time of the ego. The
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15

Otero, Alejandro, Vivian Allen, Diego Pol, and John R. Hutchinson. "Forelimb muscle and joint actions in Archosauria: insights from Crocodylus johnstoni (Pseudosuchia) and Mussaurus patagonicus (Sauropodomorpha)." PeerJ 5 (November 24, 2017): e3976. http://dx.doi.org/10.7717/peerj.3976.

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Many of the major locomotor transitions during the evolution of Archosauria, the lineage including crocodiles and birds as well as extinct Dinosauria, were shifts from quadrupedalism to bipedalism (and vice versa). Those occurred within a continuum between more sprawling and erect modes of locomotion and involved drastic changes of limb anatomy and function in several lineages, including sauropodomorph dinosaurs. We present biomechanical computer models of two locomotor extremes within Archosauria in an analysis of joint ranges of motion and the moment arms of the major forelimb muscles in ord
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16

Georgallides, Markos. "The Origination - Mechanism of the Fundamental - Particles into the Planck's - Confinement." European Journal of Applied Sciences 13, no. 02 (2025): 212–303. https://doi.org/10.14738/aivp.1302.18494.

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The Interactions: One of the most important concepts in Geometry is, distance, which is the Quanta in E-geometry, while in Material-Geometry the composition of Opposite, where the Material -Point is the Quanta in Chemistry and Physics. As in Algebra Zero,0, is the Master-key number for all Positive and Negative numbers and this because their sum and multiplication becomes zero, and the same on any coordinate-System where ± axes pass from zero, The Rolling of the Positive ⊕ constituent on the Negative ⊝ constituent, creates the Neutral Material Point which Equilibrium. Angular-Momentum is ident
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17

B., Engel, and Hassan H. "Advanced Model for Calculation of the Neutral Axis Shifting and the Wall Thickness Distribution in Rotary Draw Bending Processes." January 1, 2015. https://doi.org/10.5281/zenodo.1099048.

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Rotary draw bending is a method which is being used in tube forming. In the tube bending process, the neutral axis moves towards the inner arc and the wall thickness distribution changes for tube’s cross section. Thinning takes place in the outer arc of the tube (extrados) due to the stretching of the material, whereas thickening occurs in the inner arc of the tube (intrados) due to the comparison of the material. The calculations of the wall thickness distribution, neutral axis shifting, and strain distribution have not been accurate enough, so far. The previous model (the geometrical m
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18

Flury, Andreas, Sandro Hodel, Esteban Ongini, et al. "The Unloading Effect of Supramalleolar Versus Sliding Calcaneal Osteotomy for Treatment of Osteochondral Lesions of the Medial Talus: A Biomechanical Study." Orthopaedic Journal of Sports Medicine 11, no. 10 (2023). http://dx.doi.org/10.1177/23259671231176295.

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Background: In patients with osteochondral lesion, defects of the medial talus, or failed cartilage surgery, a periarticular osteotomy can unload the medial compartment. Purpose: To compare the effects of supramalleolar osteotomy (SMOT) versus sliding calcaneal osteotomy (SCO) for pressure redistribution and unloading of the medial ankle joint in normal, varus-aligned, and valgus-aligned distal tibiae. Study Design: Controlled laboratory study. Methods: Included were 8 cadaveric lower legs with verified neutral ankle alignment (lateral distal tibial angle [LDTA] = 0°) and hindfoot valgus withi
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19

Li, Peishu, Callum F. Ross, Zhe-Xi Luo, and Nicholas J. Gidmark. "Head posture impacts mammalian hyoid position and suprahyoid muscle length: implication for swallowing biomechanics." Philosophical Transactions of the Royal Society B: Biological Sciences 378, no. 1891 (2023). http://dx.doi.org/10.1098/rstb.2022.0552.

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Instantaneous head posture (IHP) can extensively alter resting hyoid position in humans, yet postural effects on resting hyoid position remain poorly documented among mammals in general. Clarifying this relationship is essential for evaluating interspecific variation in hyoid posture across evolution, and understanding its implications for hyolingual soft tissue function and swallowing motor control. Using Didelphis virginiana as a model, we conducted static manipulation experiments to show that head flexion shifts hyoid position rostrally relative to the cranium across different gapes. IHP-in
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20

Suresh, I., Deepak Varghese Kurian, Roshan Kumar B.N, Karthik Vyasa Periasamy, and Adinarayana Roy.Gandi. "A PROSPECTIVE STUDY ON THE FUNCTIONAL OUTCOME OF PROXIMAL FIBULAR OSTEOTOMY IN GRADE 2 AND 3 MEDIAL COMPARTMENT ARTHRITIS OF THE KNEE." INDIAN JOURNAL OF APPLIED RESEARCH, April 1, 2023, 9–15. http://dx.doi.org/10.36106/ijar/8100402.

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Introduction: Osteoarthritis of the knee is a common musculoskeletal diseases affecting a major population in India. It can impact the individual's functions and activities of daily living. Total knee arthroplasty may raise controversy when treating the younger, athletic patient with arthritis. Arthroscopic debridement, high tibial osteotomy, unicondylar knee arthroplasty, and total knee arthroplasty allow younger patients to maintain an active, healthy lifestyle but can take a longer time to rehabilitate. PFO could be used as an alternative procedure. The Proximal Fibular Osteotomy, which pro
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