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Journal articles on the topic 'Point straightening'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Liu, Qing Guo, Xing Zhong Zhang, Zheng Yi Jiang, Yan Chao Sun, Bao Jun Shi, and Nuo Ran Shen. "Analysis of Heat Transfer and Straightening of Continuous Casting Slab Using 3D Finite Element Method." Advanced Materials Research 418-420 (December 2011): 1698–702. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.1698.

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The straightening of curved slab results in a greater straightening strain. During the process of multi-point straightening, the peak value of the straightening strain rate will appear at each straightening point. If the strain rate is too large, the straightening cracks will appear. Solidification and heat transfer of a slab is analyzed and the generation of the solidified shell and the three-dimension temperature field of the slab are calculated by using three-dimensional finite element method (FEM). Based on the finite element analysis of five-point straightening of the curved slab, the str

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2

Halama, Radim, Jan Sikora, Martin Fusek, Jaromír Mec, Jana Bartecká, and Renata Wagnerová. "Billet Straightening by Three-Point Bending and Its Automation." Materials 14, no. 1 (2020): 90. http://dx.doi.org/10.3390/ma14010090.

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This paper presents the current results of cooperation focused on automatic billet straightening machine development. First, an experimental study of three-point bending realized on small specimens is presented to explain the basic ideas of the straightening. Then, the main regimes of straightening and the algorithm itself are described together. Subsequent finite element simulations of operational experiments show the applicability of the developed theory. The significance of material parameters estimation is depicted in this work. At least four parameters have to be properly determined for a

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3

Song, Xiaokang, Jun Zhao, Rui Ma, and Jian Li. "Analysis of Symmetrical Three-Point Bending and Springback Process of Pipes." Symmetry 17, no. 1 (2025): 95. https://doi.org/10.3390/sym17010095.

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This study presents a theoretical analysis of the single-pressure straightening process for large-scale pipes, addressing the challenges of inadequate straightening precision and low efficiency associated with the current practice, which heavily relies on operator expertise. The straightening process of pipes through pressure is fundamentally a symmetrical three-point bending elastic–plastic deformation process. With the assumption of small deformations, the symmetric three-point bending of the pipe can be divided into two distinct deformation stages: fully elastic and elastic–plastic. For eac

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4

Wang, Chunge, Gaochao Yu, Jun Zhao, and Wen Liu. "Pure-Bend and Over-Bend Straightening Theory for In-Plane Curved Beams with Symmetrical Section and Straightening Mechanism Analysis." Metals 12, no. 8 (2022): 1362. http://dx.doi.org/10.3390/met12081362.

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Straightening is an important process in the production and application of shafts, tubes, and various profiles. According to the springback theory of small curvature plane bending, the pure bending process and springback of in-plane curved beam with symmetrical section were analyzed, and the over-bend straightening theory was established. Based on this, the straightening mechanism of the existing over-bend straightening process was revealed; that is, a zigzag straightening moment was applied in the three-point multi-step straightening process to approximate the smooth curve of theoretical mome

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5

Aono, Yuuta, Nobukatsu Sato, Shinji Inoue, and Daichi Koga. "Process of Straightening by Three-Point and Four-Point Bending for Curved Brass Rack." International Journal of Automation Technology 16, no. 5 (2022): 598–608. http://dx.doi.org/10.20965/ijat.2022.p0598.

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Racks are typically curved after cutting their gear teeth, and a straightening process is required to correct the distortion due to machining. In this study, key factors in the straightening of curved racks by three-point and four-point bending are examined with to automate the correction. The relationship between load and deformation is plotted in real time to determine the unloading point to correct the target deflection for straightening. The parameters constituting the above-mentioned relationship are important for achieving precise correction. The load and deflection at the central loadin

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6

Yang, Mei, Chun Yan Tian, You Quan Chen, and Cheng Da Ning. "Development of the On-Line Straightness Detection System for Shafts." Applied Mechanics and Materials 490-491 (January 2014): 1592–95. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1592.

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Aiming at the low efficiency and precision of nowadays domestic auto-straightening machine of shafts, a new kind of shafts straightness detection system is researched and developed. The supporting part of the measuring mechanism adopts the mechanical structure of auto-going-down of straightening points supporting pedestal. The whole convolute measuring system fixes on the machine tool orbit sliding table, whose movement can change the position for the straightening point and make positioning faster and more accurate. In addition, this detection system bases on applications math and builds math

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7

Zhang, Yongquan, Hong Lu, He Ling, Yang Lian, and Mingtian Ma. "Analytical Model of a Multi-Step Straightening Process for Linear Guideways Considering Neutral Axis Deviation." Symmetry 10, no. 8 (2018): 316. http://dx.doi.org/10.3390/sym10080316.

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The cross-sectional shape of a linear guideway has been processed before the straightening process. The cross-section features influence not only the position of the neutral axis, but also the applied and residual stresses along the longitudinal direction, especially in a multi-step straightening process. This paper aims to present an analytical model based on elasto-plastic theory and three-point reverse bending theory to predict straightening stroke and longitudinal stress distribution during the multi-step straightening process of linear guideways. The deviation of the neutral axis is first

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8

Hu, Yunfan, He Ling, Xvkun Jiang, and Xuetong Zhang. "Quantitative evaluation of residual stress and deformation behavior in linear guide straightening: a study based on digital image correlation." Journal of Physics: Conference Series 3043, no. 1 (2025): 012041. https://doi.org/10.1088/1742-6596/3043/1/012041.

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Abstract This paper investigates the stress and residual stress distribution in the three-point bending straightening process of linear guides. Based on elastoplastic theory, the stress evolution during loading and unloading is analyzed. An experimental system is established, and digital image correlation (DIC) is employed to measure the stress and residual stress fields during the straightening process. Experimental results show that the residual stress distribution is closely related to the loading point position, and both the range and intensity of residual stress increase with the pressing

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9

Lu, Hong, Yue Zang, Xinbao Zhang, Yongquan Zhang, and Le Li. "A General Stroke-Based Model for the Straightening Process of D-Type Shaft." Processes 8, no. 5 (2020): 528. http://dx.doi.org/10.3390/pr8050528.

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D-type shaft is widely used in precision machinery products such as motors and intelligent robots. The straightness of the D-type shaft is an important factor influencing its machining accuracy and dynamic performance, which is normally improved by the three-point pressure straightening process. This paper proposes a general stroke-based model to predict the relevant parameters for the straightening process of D-type shaft, considering the bending deformations in three dimensions. The distribution of stress and strain inside the D-type shaft during the straightening process in arbitrary positi

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10

Zhang, Yongquan, Hong Lu, Xinbao Zhang, et al. "A novel control strategy for the multi-step straightening process of long/extra-long linear guideways." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 9 (2018): 2959–75. http://dx.doi.org/10.1177/0954406218800117.

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The straightening process for a linear guideway with particular cross-section shape is normally conducted by the three-point pressure bending method. However, the single-step straightening process (SSSP) of a long/extra-long linear guideway may make the workpiece from a single-curvature curve into a more complex shape. Due to these limitations of SSSP, a quantitative control strategy for the multi-step straightening process (MSSP) of a long/extra-long linear guideway is proposed in this paper based on the straightening principle of SSSP. Firstly, the predictive models for straightening stroke

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11

Liu, Xiao Liu, and Qi Shang. "Development of Full Position Portable Coiled Tubing Straightener." Advanced Materials Research 308-310 (August 2011): 627–31. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.627.

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To solve the problems of bending, deformation, complicated, hard to center occurred in the assembly welding of coiled tubing; the coiled tubing Straightener is developed by backward applying the theory of three-point bending. Its prominent features are: pressure head pushes directly from the middle; external circular arc explorators on the two sides rotate and support. It realizes the fast and damage-free straightening of coiled tubing. By replacing pressure head, changing the external circular arc radius of explorators on the two sides and adjusting the distance between two symmetrical suppor

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12

Lahuta, V. V. "THE PERMANENT DETECTION OF SHIFTS IN THE PROBLEM OF CALCULATION AUTOMATION OF THE CORRECTION RAIL CURVES." Science and Transport Progress, no. 20 (February 25, 2008): 193–97. http://dx.doi.org/10.15802/stp2008/17392.

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The numerical method of solution of a differential equation of railway shifts is presented allowing to calculate the quantity of shifts in any point of a railway curve during its straightening. Shifts calculated between the points of measurement of bend arrows can be used as control ones.

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13

Wahyudi, Mohammad Thoriq, Moh Syaiful Amri Amri, Muhamad Ari, Mukhlis Adam, Fais Hamzah, and Azriel Harsha Novaldi. "Analysis of quenching temperature variations in the heat straightening processFor multiple ripair FCAW welding HSLA SM490YA material." Journal of Welding Technology 5, no. 2 (2023): 46–51. http://dx.doi.org/10.30811/jowt.v5i2.4633.

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In the steel structure fabrication industry, girders play a crucial role as supporting beams during construction. The girder's components include end plates and beams, with the end plate serving as a critical connection point for the beam to the column. Welding at this juncture demands careful consideration. This analytical research focuses on the impact of multiple repair welding and quenching temperatures during the heat straightening process on the toughness and microstructure of HSLA SM490YA material, utilizing FCAW welding. To assess the effects of multiple repair welding, the study compa

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14

Zheng, Xi Jian, Zhong Nan Wang, and Lei Ma. "Analysis of Influence Parameters of the Project Ribbed Bar Machining Quality." Applied Mechanics and Materials 328 (June 2013): 426–31. http://dx.doi.org/10.4028/www.scientific.net/amm.328.426.

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This paper presents the method of calculating roller spacing and press amount of straightening roll. based on rigid-flexible virtual prototype technology, the entities model of straightening block was established by Pro/E, then it was imported into the ADAMS environment and constraints were added to create a rigid model, the model neutral file generated by ANSYS, thereby the rigid-flexible coupling virtual prototype was established. The distance of the point in the steel-bar relative to the end in Y direction is obtained through simulation, the acceleration curve and the range of roller spacin

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15

AONO, Yuuta, Nobukatsu SATO, Shinji INOUE, and Daichi KOGA. "Process of Straightening with 3-point and 4-point Bending for Curved Brass Rack." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2021.10 (2021): 095–64. http://dx.doi.org/10.1299/jsmelem.2021.10.095-064.

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16

Fan, Qin-Hong, Hong Zhang, Xue-Cheng Jiang, and Bao-Zhen Tian. "Study on neutral layer offset of high-strength steel plate straightening of excavator’s working arm." Advances in Mechanical Engineering 9, no. 7 (2017): 168781401771242. http://dx.doi.org/10.1177/1687814017712420.

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The steel plate straightening quality has an important influence on the welding quality and service performance of excavator’s boom and arm. In this study, a stress neutral layer offset model was established based on three-point bending theory, steel plate bending characteristics, and layered theory in the straightening process. The stress neutral layer offset phenomenon and the relationship among the reverse bending radius, the plate thickness, and the metal deformation capacity have been proved theoretically. Combined with the tensile and bending tests at room temperature, the relationship b

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17

HUANG, Xue-ying, Jun ZHAO, Gao-chao YU, Qing-dang MENG, Zhen-kai MU, and Yan-jun LIU. "Multi-point flexible straightening process by reciprocating bending for metal profiles." Transactions of Nonferrous Metals Society of China 31, no. 7 (2021): 2039–50. http://dx.doi.org/10.1016/s1003-6326(21)65636-4.

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18

Świć, Antoni, Arkadiusz Gola, Łukasz Sobaszek, and Natalia Šmidová. "A thermo-mechanical machining method for improving the accuracy and stability of the geometric shape of long low-rigidity shafts." Journal of Intelligent Manufacturing 32, no. 7 (2021): 1939–51. http://dx.doi.org/10.1007/s10845-020-01733-4.

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AbstractThe article presents a new thermo-mechanical machining method for the manufacture of long low-rigidity shafts which combines straightening and heat treatment operations. A fixture for thermo-mechanical treatment of long low-rigidity shafts was designed and used in tests which involved axial straightening of shafts combined with a quenching operation (performed to increase the corrosion resistance of the steel used as stock material). The study showed that an analysis of the initial deflections of semi-finished shafts of different dimensions and determination of the maximum corrective d

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19

Shen, Yuanying, Chongwen Yu, and Jianping Yang. "A study on fiber motion in the drafting zone and hook removal." Textile Research Journal 90, no. 11-12 (2019): 1277–90. http://dx.doi.org/10.1177/0040517519889557.

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In this study, the hook removal of four types of hooks during the drafting process has been investigated, and the theory of fiber straightening was further improved by analyzing the relationship between fiber length, fiber straightness, draft ratio, and the fiber accelerated point. Simultaneously, a time domain model was used to simulate the dynamic drafting process based on the straightening analysis, which provided an approach to capture the dynamic motion of different types of fibers and hook removal in the drafting zone. The model is validated by a previous study and experimental work, wit

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20

Ezhov, M. Y., O. A. Batalov, and Y. I. Ezhov. "Features of static, paralytic and iatrogenic foot joints deformities diagnosis and treatment." Kazan medical journal 93, no. 5 (2012): 830–34. http://dx.doi.org/10.17816/kmj1722.

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Aim. To evaluate the efficiency of treating patients with orthopedic foot diseases for previous 30 years, including treatment using high technology methods. Methods. 700 patients aged from 16 to 85 years underwent surgical treatment. All foot state parameters were scored using a 10-point grading system. To specify the transversal arch parameters, computed tomography and magnetic resonance tomography were performed. To assess the general condition of the foot, vascular ultrasound, electroneuromyography, biomechanical examination using ink print mats and podometry. In treating patients with hall

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21

Zhao, Jun, and Xiaokang Song. "Control strategy of multi-point bending one-off straightening process for LSAW pipes." International Journal of Advanced Manufacturing Technology 72, no. 9-12 (2014): 1615–24. http://dx.doi.org/10.1007/s00170-014-5776-9.

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22

Tran, Thi Minh Tuyet. "DEVELOPING AND REGULATING THE COMMUNIST PARTY OF VIETNAM IN TERMS OF MORALITY UNDER PRESIDENT HO CHI MINH’S POINT OF VIEW." Globus: psychology and pedagogy 7, no. 4(44) (2021): 23–26. http://dx.doi.org/10.52013/2713-3060-44-4-7.

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It can be said that President Ho Chi Minh always upholds the role of revolutionary morality and Party building in terms of ethics. His thoughts have supplemented the theory of Marxism — Leninism on the Party building. In this article, the author analyzes President Ho Chi Minh’s ideas in Party building in terms of ethics and proposes some methods for currently developing and straightening the Communist Party of Vietnam.

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23

CLINE, DAVID. "Straightening the Record: Morton Feldman's Return to Graph Music." Twentieth-Century Music 10, no. 1 (2013): 59–90. http://dx.doi.org/10.1017/s1478572212000412.

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AbstractMorton Feldman composed his first works on graph paper in 1950–53, but he subsequently abandoned graph music, before taking it up again in 1958 at a time of rapidly increasing interest in musical indeterminacy and graphic notations in the United States and Europe. Feldman's return to graph music was a turning point in his career that would affect his subsequent output for almost a decade, but his principal surviving account of this change in his musical direction, which appeared in liner notes for an LP record, is misleading. This article presents a revised account that highlights a pr

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24

van Rossum, M., C. L. A. Delicaat, R. Mostert, J. Vermeij, and E. J. G. Spelbos. "On-line bulging and shear measurements near the straightening point in a continuous caster." Revue de Métallurgie 96, no. 6 (1999): 729–36. http://dx.doi.org/10.1051/metal/199996060729.

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25

ZHAO, Jun. "Principle of Multi-point Bending One-off Straightening Process for Longitudinally Submerged Arc Welding Pipes." Journal of Mechanical Engineering 50, no. 2 (2014): 92. http://dx.doi.org/10.3901/jme.2014.02.092.

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26

Elmajri, Khalifa. "Do We have an Aimer to put the Tibial and Femoral Tunnels in the Same Line to reduce Mechanical Strain in Reconstructed Anterior Cruciate Ligament?" International Journal of Recent Surgical and Medical Sciences 03, no. 02 (2017): 130–31. http://dx.doi.org/10.5005/jp-journals-10053-0059.

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AbstractThe strain between the ACL graft tissue and the osteochondral tissue at the tunnel entrances would lead to postoperative deviation of the femoral and/or tibial insertion of the ACL graft. Postoperative changes of the 3D orientation of the ACL graft affect its physiometry leading to failure of graft tension. A conception of an aimer is suggested to insure straightening of the intraosseous (tibial and femoral) and intra-articular parts of the graft at the tunnel entry point to overcome the postoperative angulation of intraosseous and intra-articular graft parts

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27

LENAGAN, T. H., and L. RIGAL. "QUANTUM ANALOGUES OF SCHUBERT VARIETIES IN THE GRASSMANNIAN." Glasgow Mathematical Journal 50, no. 1 (2008): 55–70. http://dx.doi.org/10.1017/s0017089507003928.

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AbstractWe study quantum Schubert varieties from the point of view of regularity conditions. More precisely, we show that these rings are domains that are maximal orders and are AS-Cohen-Macaulay and we determine which of them are AS-Gorenstein. One key fact that enables us to prove these results is that quantum Schubert varieties are quantum graded algebras with a straightening law that have a unique minimal element in the defining poset. We prove a general result showing when such quantum graded algebras are maximal orders. Finally, we exploit these results to show that quantum determinantal

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28

Ikhwan, Kana Sabatul, and M. Dalil. "Effect of Bending and Straightening to the Strength of Reinforcement Steel Bar." Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) 15, no. 1 (2015): 12–17. https://doi.org/10.36842/jomase.v15i1.463.

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One of reinforcement bar treatment during delivery transportation is to bend up or buckle in the middle of the bar. This treatment will undermine the strength of the reinforcement bar on buckle region due to its mechanical properties have been changed and no longer within specification. An important point of this study is to knowing the rate of change of mechanical properties, especially strength. Concrete reinforcing steels are bent with nine variations of the bending angle starting from the angle (a) of 20°, 40°, 60°, 80°, 100°, 120°, 140° 160°, and 180°. The data obtained indicated that the

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29

Kazakov, A. Ya. "Special Function Related to the Scattering of the Whispering Gallery Mode at a Point of Local Straightening." Journal of Mathematical Sciences 128, no. 2 (2005): 2782–86. http://dx.doi.org/10.1007/s10958-005-0231-y.

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30

Ruel, Jean-Claude, René Doucet, and Jocelyn Boily. "Mortality of balsam fir and black spruce advance growth 3 years after clear-cutting." Canadian Journal of Forest Research 25, no. 9 (1995): 1528–37. http://dx.doi.org/10.1139/x95-166.

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The effects of balsam fir (Abiesbalsamea (L.) Mill.) and black spruce (Piceamariana (Mill.) B.S.P.) seedling attributes on survival were measured on four cutovers regenerated to black spruce and three regenerated to balsam fir. In each of these, about 240 stems were permanently identified shortly after logging and their main characteristics were noted. Survival was assessed after 1 and 3 years. First-year mortality reached 24% for balsam fir and and 21% for black spruce. It varied with height and seedling quality. Mortality during the second and third year after harvesting was less important a

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31

LOMONACO, LUNA. "Parabolic-like mappings." Ergodic Theory and Dynamical Systems 35, no. 7 (2014): 2171–97. http://dx.doi.org/10.1017/etds.2014.27.

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In this paper we introduce the notion of parabolic-like mapping. Such an object is similar to a polynomial-like mapping, but it has a parabolic external class, i.e. an external map with a parabolic fixed point. We define the notion of parabolic-like mapping and we study the dynamical properties of parabolic-like mappings. We prove a straightening theorem for parabolic-like mappings which states that any parabolic-like mapping of degree two is hybrid conjugate to a member of the family $$\begin{eqnarray}\mathit{Per}_{1}(1)=\left\{[P_{A}]\,\bigg|\,P_{A}(z)=z+\frac{1}{z}+A,~A\in \mathbb{C}\right\

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32

Peng, Xuanwei. "Stroke systems in Chinese characters: A systemic functional perspective on simplified regular script." Semiotica 2017, no. 218 (2017): 1–19. http://dx.doi.org/10.1515/sem-2015-0111.

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AbstractThis article makes a preliminary attempt to account for the stroke systems of Chinese characters in simplified regular script. The framework utilized is the three meta-functions in Systemic Functional Linguistics. The description observes the cases from the perspectives of the experiential, appraisal (aesthetic), and thematic semiosis of strokes and their constitutional segments to figure out the relevant systems: the line system and the point system. This process witnesses comparisons to seek, in brief though, the traces and origins of stroke development along evolution, and hence the

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Effendi, Khaled, Raphael Hillel Sacho, François Belzile, and Thomas R. Marotta. "Republished: The wire anchor loop traction (WALT) maneuver." Journal of NeuroInterventional Surgery 8, no. 2 (2015): e7-e7. http://dx.doi.org/10.1136/neurintsurg-2014-011604.rep.

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Crossing the neck of large complex intracranial aneurysms for the purposes of stent deployment can be challenging using standard over the wire techniques. We describe a novel yet simple technique for straightening out the loop formed within a large intracranial aneurysm, which is often required in order to cross the aneurysm neck into the distal branch. Both the microcatheter and microwire are initially introduced into the distal vasculature, followed by withdrawal of the microwire to a point parallel to the distal exiting branch. The microcatheter and microwire are then gently withdrawn and a

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Zhang, Xuetong, He Ling, Yunfan Hu, and Xukun Jiang. "Bending characteristics and springback prediction for straightening of carbon steel-stainless steel bimetallic composite pipes." Journal of Physics: Conference Series 3021, no. 1 (2025): 012076. https://doi.org/10.1088/1742-6596/3021/1/012076.

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Abstract This paper focuses on carbon steel-stainless steel bimetallic composite pipes as the subject of investigation. By employing the theory of elastoplasticity, an analysis is conducted on the evolution of elastoplastic deformation across the cross-section of the composite pipe. Consequently, a formula delineating the moment-to-elastic-zone ratio segments under pressure straightening conditions for the composite pipe has been derived. The influence of varying ratios of pipe diameter and yield strength on the model is examined. Furthermore, three-point bending simulations were conducted by

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35

Peršak, Tadej, Jernej Hernavs, Tomaž Vuherer, Aleš Belšak, and Simon Klančnik. "Prediction of the Form of a Hardened Metal Workpiece during the Straightening Process." Sustainability 15, no. 8 (2023): 6408. http://dx.doi.org/10.3390/su15086408.

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In industry, metal workpieces are often heat-treated to improve their mechanical properties, which leads to unwanted deformations and changes in their geometry. Due to their high hardness (60 HRC or more), conventional bending and rolling straightening approaches are not effective, as a failure of the material occurs. The aim of the research was to develop a predictive model that predicts the change in the form of a hardened workpiece as a function of the arbitrary set of strikes that deform the surface plastically. A large-scale laboratory experiment was carried out in which a database of 306

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36

Wang, Biao, Chun Xiang Wu, and Jiao Cheng Ma. "A Study on High Temperature Mechanical Properties of HRB335C Steel." Materials Science Forum 704-705 (December 2011): 886–91. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.886.

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By means of Gleeble-1500 dynamic thermo mechanical simulator using solidifying method, the simulation of continuous casting process for HRB335C steel was carried out and hot ductility and strength were determined. The test results indicate that there were three temperature areas of brittleness for billet produced by HRB335C within 700°C to solidification point, the first temperature area of brittleness was 1300°C to solidification point of the billet, the second temperature area of brittleness was 1200～1000°C, the third temperature area of brittleness was 700～850°C, the steel was plastic withi

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Xing, Zhizhong, Shuanfeng Zhao, Wei Guo, Xiaojun Guo, and Yuan Wang. "Processing Laser Point Cloud in Fully Mechanized Mining Face Based on DGCNN." ISPRS International Journal of Geo-Information 10, no. 7 (2021): 482. http://dx.doi.org/10.3390/ijgi10070482.

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Point cloud data can accurately and intuitively reflect the spatial relationship between the coal wall and underground fully mechanized mining equipment. However, the indirect method of point cloud feature extraction based on deep neural networks will lose some of the spatial information of the point cloud, while the direct method will lose some of the local information of the point cloud. Therefore, we propose the use of dynamic graph convolution neural network (DGCNN) to extract the geometric features of the sphere in the point cloud of the fully mechanized mining face (FMMF) in order to obt

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Chen, Xue, Pan Xue, Yuanyuan Shi, and Si Chen. "The Role of Digital X-Ray in Curative Effect and Nursing Evaluation of Cervical Spondylotic Radiculopathy." Journal of Healthcare Engineering 2021 (August 16, 2021): 1–6. http://dx.doi.org/10.1155/2021/5666136.

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The present study attempted to analyze the features of atlanto-occipital radiograph in patients with cervical spondylotic radiculopathy or vertebral artery type. In order to reduce the interference of human factors and the measurement error as much as possible, this experiment adopts the blind design and analyzes the digital format X-ray films by using the computer software ImageJ. Because the tangent line between the outer plates of the anterior and posterior margin of the foramen magnum was not accurately located on the X-ray film, the angle formed by the line between the saddle dorsal slope

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Holec, Jan, Martin Morávek, and Jiří Cejp. "Detection of Cracks in the Production of Shafts." Key Engineering Materials 647 (May 2015): 243–47. http://dx.doi.org/10.4028/www.scientific.net/kem.647.243.

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Safe operation of the machinery depends on quality of the individual machine parts. These are controlled by different non-destructive methods not only at the end of the production but also during it. In large quantity series production it is necessary to ensure the fastest control method possible. Shafts may bend during production due to the heat treatment and they need to be straightened by mechanical methods. Shafts straightening may cause cracks formation which is unacceptable from the point of view of the part operation. Therefore crack detection system QASS CiS.01 is used to reveal them o

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Ursíny, Petr, Martin Bílek, Eva Moučková, Martina Pokorná, Petr Tumajer, and Jakub Wiener. "Mechanical Properties Of Traditional And Nanofibre Textiles." Autex Research Journal 15, no. 3 (2015): 198–206. http://dx.doi.org/10.1515/aut-2015-0005.

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Abstract This study deals with a comparison of mechanical properties of a conventional yarn and a textile from nanofibres. The conventional yarn represents the textile objects with high degree of orientation of fibres and the textile from nanofibres represents the textile objects with low degree of orientation of fibres. The theoretical section is concerned with the issue of internal structure of plied yarn and resulting differences in the orientation and straightening of fibres and in utilisation of deformation properties of fibres in comparison to the referred nano textile. The experimental

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Silalahi, Florence Elfriede S., and Fahrul Hidayat. "Modelbuilder and Unit Hydrograph for Flood Prediction and Watershed Flow Direction Determination at The West Branch of The Little River, Stowe, Lamoille County, Vermont, USA." Geoplanning: Journal of Geomatics and Planning 6, no. 2 (2020): 89–98. http://dx.doi.org/10.14710/geoplanning.6.2.89-98.

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The West Branch of the Little River in Stowe, Lamoille County, Vermont has been widely studied, and this area is regularly subject to flooding. The West Branch joins the Little River, which flows into the Winooski and drains into Lake Champlain. This area has undergone extensive development as an economic response to the ski resort industry over the past 50 years, and the recreational pathway is on the banks of the river. The Little River is adjusting to the loss of historic floodplain area, channel modifications (straightening and gravel mining), and runoff changes. In this project, a DEM wit

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Indrasari, Lolyka Dewi, Ana Komari, Afiff Yudha Tripariyanto, and Jamilatus Sa'idah. "Socialization of green logistics on wire waste management as a commercial plate basket product." Community Empowerment 7, no. 2 (2022): 291–97. http://dx.doi.org/10.31603/ce.5825.

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Utilization of wire waste is feasible to be produced as a plate basket product. The partner who has implemented this innovation is UKM Putu Alwy Jaya. The community service team conducted socialization with the topic "green logistics". This topic is in accordance with the conditions that are being experienced by partners. The purpose of this activity is to increase the role of green logistics in products made from waste wire with selling value. The implementation method includes lectures, discussions, questions and answers and evaluations. Based on the results of the aspirations of the partici

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Fouinneteau, M., and A. K. Pickett. "Failure Characterisation of Heavy Tow Braided Composites Using Digital Image Correlation (DIC)." Applied Mechanics and Materials 5-6 (October 2006): 399–406. http://dx.doi.org/10.4028/www.scientific.net/amm.5-6.399.

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An extensive test campaign has been conducted to characterise the different failure modes observed in heavy tow (24k) carbon and glass braided composites. The Digital Image Correlation (DIC) technique was used to obtain complete strain field measurement of large strains to failure. Failure in the fibre direction, under tension and compression loading were investigated; in the tension direction relatively large strains to failure were measured due to tow straightening damage mechanisms. Another important test is tensile shear loading which can undergo very large strains to failure due to fibre

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Chen, Huihao, Depeng Meng, Zheng Xie, Gang Yin, Chunlin Hou, and Haodong Lin. "Transfer of Sciatic Nerve Motor Branches in High Femoral Nerve Injury: A Cadaver Feasibility Study and Clinical Case Report." Operative Neurosurgery 19, no. 3 (2020): E244—E250. http://dx.doi.org/10.1093/ons/opaa131.

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Abstract BACKGROUND Femoral nerve injury causes knee dysfunction, and high femoral nerve injury is difficult to repair. OBJECTIVE To evaluate the anatomic feasibility of transferring the sciatic nerve motor branches in high femoral nerve injury. METHODS The femoral nerve was exposed in both lower extremities of 3 adult fresh-frozen cadavers; each branch was noninvasively dissected to its proximal nerve fiber intersection point and distal muscle entry point. The branches of the sciatic nerve were also exposed. The length, diameter, and number of myelinated fibers were measured in each femoral a

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Jartarghar, Nagaratna, Chethan Kumar VK, Lowkesh Chandravanshi, and Shubhangi Rathore. "Ayurvedic approach to Osgood Schlatter disease: A case report." Journal of Ayurvedic and Herbal Medicine 3, no. 4 (2017): 189–91. http://dx.doi.org/10.31254/jahm.2017.3403.

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Osgood Schlatter disease (OSD) is an inflammatory injury of the growth plate on the tibia just below the level of the knee at the tibial tubercle. The tibial tubercle is the bony attachment of the quadriceps (front thigh muscle). Contraction of the quadriceps results primarily in straightening of the leg at the level of the knee. A growth plate is an area of developing tissue near the ends of long bones or areas of muscle attachment. The growth plate in children allows the bones to expand in length thus allowing a child to reach his/her full height by the age of 16-19years. Compared to the sur

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Samlan, Robin A., and Brad H. Story. "Influence of Left–Right Asymmetries on Voice Quality in Simulated Paramedian Vocal Fold Paralysis." Journal of Speech, Language, and Hearing Research 60, no. 2 (2017): 306–21. http://dx.doi.org/10.1044/2016_jslhr-s-16-0076.

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Purpose The purpose of this study was to determine the vocal fold structural and vibratory symmetries that are important to vocal function and voice quality in a simulated paramedian vocal fold paralysis. Method A computational kinematic speech production model was used to simulate an exemplar “voice” on the basis of asymmetric settings of parameters controlling glottal configuration. These parameters were then altered individually to determine their effect on maximum flow declination rate, spectral slope, cepstral peak prominence, harmonics-to-noise ratio, and perceived voice quality. Results

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Burak, Kostyantyn, Vitaliy Kovtun, and Mary Nychvyd. "BUILDING 3D SURFACES OF LAND STORAGE VERTICAL CYLINDRICAL STEEL TANK USING BICUBIC SPLINE INTERPOLATION." Geodesy and cartography 45, no. 2 (2019): 85–91. http://dx.doi.org/10.3846/gac.2019.6301.

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The purpose of this work is to increase the accuracy, quality and information content of geodetic surveys of vertical steel tanks by using modern geodetic equipment and creating algorithms for data processing of these observations. Method. In order to increase the information content of data for straightening, it is proposed to calculate the geometric parameters of vertical steel tanks not only in places where data are directly obtained through instrumental observations, but also at any point of the 3D surface of the tank. The paper describes an algorithm for creating a 3D surface of a tank by

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Anishchenko, M. A., M. A. Nazmeev, S. G. Shapovalyants, et al. "The Use of L-Menthol in Endoscopic Transpapillary Interventions. Prospective Randomized Dual-Center Study." Russian Journal of Gastroenterology, Hepatology, Coloproctology 33, no. 5 (2023): 78–87. http://dx.doi.org/10.22416/1382-4376-2023-33-5-78-87.

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Aim: to study the effect of L-menthol on duodenal peristalsis, the results of cannulation of the papilla, the effectiveness and safety of endoscopic retrograde transpapillary interventions (ERTI).Materials and methods. A prospective two-center randomized placebo-controlled trial was carried out from January to November 2022 in two centers. The study included 126 patients, 69 (54.8 %) men and 57 (45.2 %) women, mean age — 62.1 ± 1.8 years. The inclusion criteria were age 18–75 years, indications for ERTI, absence of previous endoscopic papillotomy, absence of allergy to menthol, consent to part

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Mahdi, Dr Jamal A., and Dr Rafal M. Maruish. "Centering ability and canal transportation of : ProTper,Mtwo,WaveOne,Reciproc in simulated curved canals (A comparative study)." Mustansiria Dental Journal 10, no. 2 (2018): 147–55. http://dx.doi.org/10.32828/mdj.v10i2.205.

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Background: this study was conducted to compare the centering ability and canaltransportation of: Protaper, Mtwo, WaveOne, Reciproc in simulated curvedcanals.Materials and methods: Eighty simulated curved canals of 40° curvature weredivided into four groups and prepared to an apical size 25 using a crown-downtechnique for ProTaper instruments and single length technique for Mtwoinstruments and single file technique for WaveOne and Reciproc instruments. Thefollowing parameters were evaluated: outer and inner canal transportation andthe centering ability. The measurements were carried out at fiv

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Zhang, Yanzi, Bo Cui, Chunyu Gong, et al. "A rat model of nerve stimulator-guided brachial plexus blockade." Laboratory Animals 53, no. 2 (2018): 160–68. http://dx.doi.org/10.1177/0023677218779608.

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It is important to develop a feasible animal model of regional anesthesia other than sciatic nerve blockade for pharmacokinetic investigations of new local anesthetics or analgesia in upper extremity surgery. Herein, we explored a nerve stimulator (NS)-guided brachial plexus block (BPB) in a rat model. The anatomy of the brachial plexus in rats was delineated in cadavers, and various BPBs were examined. The puncture point was located 0.5–1.0 cm below the lateral one-third of the clavicle. The efficacy and safety of the NS-guided BPB were evaluated using an injection of 2% lidocaine or 0.5% bup

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