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Journal articles on the topic 'Lateral extrusion model'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Gu, Haiyu, Zhiming Deng, Yunfeng Yu, Xiaofeng Li, and Baixin Ai. "Modeling and Verification of Cable-Hole Transmission Tension Ratio Considering the Cable Lateral Extrusion." Machines 12, no. 10 (2024): 707. http://dx.doi.org/10.3390/machines12100707.

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Cable-hole transmission is widely applied in cable-driven mechanisms to reduce the mechanical size. However, the driving tension is attenuated with the cable threading through the hole caused by uncertain factors such as local deformation, friction, and other effects, and errors in cable-hole transmission occur. To improve the transmission accuracy of cable-driven mechanisms, a tension distribution model considering the cable lateral extrusion is established. Then, an analytical tension ratio of the cable-hole transmission is derived based on the perturbation method and tension distribution mo

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2

Walczak, Brian E., Kyle Miller, Michael A. Behun, et al. "Quantifying the differential functional behavior between the medial and lateral meniscus after posterior meniscus root tears." PLOS ONE 16, no. 11 (2021): e0259678. http://dx.doi.org/10.1371/journal.pone.0259678.

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Meniscus tears of the knee are among the most common orthopedic knee injury. Specifically, tears of the posterior root can result in abnormal meniscal extrusion leading to decreased function and progressive osteoarthritis. Despite contemporary surgical treatments of posterior meniscus root tears, there is a low rate of healing and an incidence of residual meniscus extrusion approaching 30%, illustrating an inability to recapitulate native meniscus function. Here, we characterized the differential functional behavior of the medial and lateral meniscus during axial compression load and dynamic k

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3

Ayer, Önder, Sedat Bingöl, and Tahir Altinbalik. "Artificial Neural Network Modeling of Injection Upsetting Load Prediction." Applied Mechanics and Materials 729 (January 2015): 155–60. http://dx.doi.org/10.4028/www.scientific.net/amm.729.155.

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Lateral extrusion, which requires less forming load comparing the closed-die forging, has been presenting a gradually increasing field of application as a type of metal forming wherein advantageous of forging and extrusion are combined. In this study production of a work piece with a single tapered tooth manufactured by the lateral extrusion method has been made and experimental load and die fullness rates have been measured. After that the data obtained from experiments was submitted to the developed artificial neural networks (ANN) model. The ANN model was trained by taking diameter, height

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GRIFFITHS, ROSS W., and JONATHAN H. FINK. "Solidifying Bingham extrusions: a model for the growth of silicic lava domes." Journal of Fluid Mechanics 347 (September 25, 1997): 13–36. http://dx.doi.org/10.1017/s0022112097006344.

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In a previous study of the effects of cooling and solidification on flows issuing onto a horizontal plane and spreading under gravity we considered the case of a viscous fluid that solidifies to form a thin surface crust with a finite yield strength. In that case, the coupling of solidification and viscous stresses in the flow led to a sequence of flow regimes or styles of flow and crustal deformation. Here, we study the spreading, from a small source, of a plastic material having a yield strength before cooling. In this case the fluid again begins to freeze as it spreads radially under gravit

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5

Hynes, A. "Encouraging the extrusion of deep-crustal rocks in collisional zones." Mineralogical Magazine 66, no. 1 (2002): 5–24. http://dx.doi.org/10.1180/0026461026610013.

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AbstractMost unroofing mechanisms invoked for the exhumation of blueschist-plus-eclogite terranes, including corner-flow and extensional collapse of the orogenic wedge, predict steep unroofing paths for the deeply-buried rocks and are applicable only to unroofing from depths within the crust. Many high-P and ultrahigh-P rocks of continental affinity are derived from greater depths than this. Their lack of warming during unroofing, together with indications that they may rest directly on less deeply buried equivalents, are suggestive of shallow unroofing paths similar to those for the subductio

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6

Haghighat, H., and D. Almasi. "Lateral Extrusion of Gear-Like Components with Radial Tooth Profile: Metal Flow Simulation and Analysis." Advanced Materials Research 264-265 (June 2011): 72–77. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.72.

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The process of lateral extrusion of gear-like components with radial tooth profile has been studied in this paper. The material flow in extrusion die cavity has been simulated using the SuperForge of FVM simulation package. The results of simulation have shown that the material fills the die cavity in two stages: Parallel movement to the end of toothed die cavity and fills the rest of shaped die cavity. Each stage of deformation has been analyzed by using slab method of analysis and the extrusion load values for each punch stroke have been estimated. Finally, comparisons between present theore

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7

Khan, Yawar Abbas, and Henry Sigvart Valberg. "Aluminium Extrusion Weld Formation and Metal Flow Analysis in Hollow Profile Extrusions of Different Section Thickness." Key Engineering Materials 491 (September 2011): 105–12. http://dx.doi.org/10.4028/www.scientific.net/kem.491.105.

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Hollow and semi-hollow profiles are commonly produced by extrusion using porthole dies. The main characteristics of such dies are the presence of a mandrel (core) to shape the inner contour of hollow profile and bridges or legs to carry the mandrel. The bridges split the billet material into multiple metal streams that flow through the porthole channels and meet in the welding chamber behind the bridge where they are joined by pressure welding. When hollow profiles with different wall thickness are made the size of two adjacent portholes may be different. The material then flows through the tw

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8

Tevelev, Al V., I. A. Prudnikov, Ark V. Tevelev, A. O. Khotylev, and E. A. Volodina. "KINEMATICAL MODEL FOR FORMING THE SIMEAN LOW OF THE URALIAN FORELAND BASIN." Moscow University Bulletin. Series 4. Geology, no. 2 (April 28, 2018): 23–32. http://dx.doi.org/10.33623/0579-9406-2018-2-23-32.

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In this work we reported the structural features and mechanism of the formation of the Simskaya low of the Uralian foreland basin, besides the Karatau-Suleyman block as a whole. This block has the shape of a wedge, so with a general latitudinal compression, it experienced lateral extrusion to the north along the conjugated shear zones. This factor determined the local situation of meridional compression and latitudinal tension. In the central part of the block, the latitudinal stretching was compensated for by gradual deflection, which led to the formation of the Simskaya low.

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9

Behrens, Bernd-Arno, Christian Klose, Alexander Chugreev, Norman Heimes, Susanne Thürer, and Johanna Uhe. "A Numerical Study on Co-Extrusion to Produce Coaxial Aluminum-Steel Compounds with Longitudinal Weld Seams." Metals 8, no. 9 (2018): 717. http://dx.doi.org/10.3390/met8090717.

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The use of lightweight materials is one possibility to limit the weight of vehicles and to reduce CO2 emissions. However, the mechanical properties and weight-saving potential of mono-materials are limited. Material compounds can overcome this challenge by combining the advantages of different materials in one component. Lateral angular co-extrusion (LACE) allows the production of coaxial semi-finished products consisting of aluminum and steel. In this study, a finite element model of the LACE process was built up and validated by experimental investigations. A high degree of agreement between

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10

Smith, Patrick A., Will A. Bezold, Cristi R. Cook, et al. "Kinematic Analysis of Lateral Meniscal Oblique Radial Tears in the Anterior Cruciate Ligament–Deficient Knee." American Journal of Sports Medicine 49, no. 14 (2021): 3898–905. http://dx.doi.org/10.1177/03635465211052521.

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Background: Lateral meniscal oblique radial tears (LMORT) occur frequently in conjunction with anterior cruciate ligament (ACL) disruption and are anatomically distinct from meniscus root tears. Hypothesis/Purpose: The purpose of this study was to characterize the effects of LMORT types 3 (LMORT3) and 4 (LMORT4) lesions on joint stability and meniscal extrusion in ACL-deficient knees. Our hypothesis was that both lesions would promote significant increases in anterior translation and meniscal extrusion, with the LMORT4 lesion having a greater effect. Study Design: Controlled laboratory study.

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11

Yang, Youqing, and Mian Liu. "Crustal thickening and lateral extrusion during the Indo-Asian collision: A 3D viscous flow model." Tectonophysics 465, no. 1-4 (2009): 128–35. http://dx.doi.org/10.1016/j.tecto.2008.11.002.

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12

Wölfler, Andreas, Walter Kurz, Harald Fritz, and Kurt Stüwe. "Lateral extrusion in the Eastern Alps revisited: Refining the model by thermochronological, sedimentary, and seismic data." Tectonics 30, no. 4 (2011): n/a. http://dx.doi.org/10.1029/2010tc002782.

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13

Zhang, Wei Bing, and Lian Tang. "Settlement and Deformation Laws of High Loess-Filled Embankment Based on Centrifugal Model Test." Applied Mechanics and Materials 90-93 (September 2011): 222–29. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.222.

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In view of the settlement problem of high loess-filled embankments themselves, with the reference of the 30m high embankment at K5 +536 of Lan Lin provincial expressway and by means of the centrifugal model test, the developing process of the settlement for embankment itself with time in different sections of embankment and the distribution laws of the settlement subjected from spatial effect in case of the different terrain conditions are studied. Compared with the actual measurement, the results show that: as far as the settlement of high-filled embankment itself is concerned, the settlement

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14

Hynes, Andrew, Aphrodite Indares, Toby Rivers, and André Gobeil. "Lithoprobe line 55: integration of out-of-plane seismic results with surface structure, metamorphism, and geochronology, and the tectonic evolution of the eastern Grenville Province." Canadian Journal of Earth Sciences 37, no. 2-3 (2000): 341–58. http://dx.doi.org/10.1139/e99-076.

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Lithoprobe line 55, in the Grenville Province of eastern Quebec, provides unusually good control on the three-dimensional (3-D) geometry and structural relationships among the major lithological units there. Archean basement underlies the exposed Proterozoic rocks, along the entire seismic line, and there is a lateral ramp in this basement immediately behind a lobate stack of thrust slices of high-pressure metamorphic rocks comprising the Manicouagan Imbricate Zone (MIZ). Integration of the 3-D geometry with P-T and geochronological data allows derivation of a tectonic model for the region. Th

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15

Schongen, Fabian, Fritz Klocke, Patrick Mattfeld, Sergej Rjasanow, Marvin Fleck, and Richards Grzhibovskis. "Time-Efficient and Precise FEM/BEM Simulation of a Cold Forging Process Verified by Tool Load Determination." Key Engineering Materials 554-557 (June 2013): 317–27. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.317.

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Developing green processes establishes new possibilities for cold forging industry. Current technological developments require automotive parts with less mass, but higher material-efficiency. To achieve these goals, high-strength steels and complex geometries are used. The rising process forces lead to increased tool loads and subsequently elastic tool deformation resulting in early tool failure or dimensional deviations. A numerical determination of tool loads during process enables their reduction by a load-dependent design of the tool geometry. Aim of this work is a time-efficient and preci

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16

Pelletier, Jean-Pierre, Patrice Paiement, Marc Dorais, Jean-Pierre Raynauld, and Johanne Martel-Pelletier. "Risk factors for the long-term incidence and progression of knee osteoarthritis in older adults: role of nonsurgical injury." Therapeutic Advances in Chronic Disease 14 (January 2023): 204062232311697. http://dx.doi.org/10.1177/20406223231169715.

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Background: For one of the most chronic medical conditions, osteoarthritis, uncertainties remain on the impact of injury chronology, the role of repeat injury on the incidence/progression of this disease and the need for knee arthroplasty. Objectives: To explore, in an older adult population, how nonsurgical knee injuries relate to osteoarthritis incidence/progression and the weight of independent risk factors for arthroplasty. Design: A cohort study design evaluates the long-term impact of injuries on knee osteoarthritis outcomes. Methods: Knees with no prior injury ( n = 6358) and with at le

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17

Liu, Yanchang, Yiren Pan, Xuehua Hu, and Fang Yu. "Squeezing Mechanical Analysis and Model Establishment of the Viscoelastic Rubber-Strip-Feeding Process of the Cold-Feed Rubber Extruder." Polymers 14, no. 17 (2022): 3602. http://dx.doi.org/10.3390/polym14173602.

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In the process of rubber extrusion, the feed structure directly affects the extrusion quality, extrusion uniformity, screw lateral force, and feed power consumption. Until now, the feed structure was mainly based on empirical designs, and there was no theoretical model for the optimal design of a feed structure. This paper focused on the squeezing mechanical analysis and model establishment of the feeding process in which viscoelastic rubber strips are passed through feed-wedge clearance in cold-feed extruders. The screw flight rotation squeezing process was simplified into a disc rotation squ

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18

Grechnikov, Fedor V., Alexander I. Khaimovich, V. Mikhelkevich, and Cho-Pei Jiang. "The Research of Friction Influences on the Formation Process by Lateral Extrusion into Radial Wedge-Type Branches." Key Engineering Materials 746 (July 2017): 56–62. http://dx.doi.org/10.4028/www.scientific.net/kem.746.56.

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The article represents theoretical analysis of friction influence on the process of formation experimental blank with several radial wedge-type branches having different constituent convergence angles. The authors show that with the correlation between volumes of material what are extruded into the branches it is possible to define the friction coefficient for set conditions of forging. Such approach allows suggesting the methodology for exact definition of friction coefficient for forged blank with a large area of contact surface. For the analysis the analytical model is used which was obtain

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19

Zhang, Li Hua, Li Yu, and Zhe Jun Quan. "Moisture Content's Influence to Pile Bearing Capacity and Finite Element Analysis." Applied Mechanics and Materials 633-634 (September 2014): 922–26. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.922.

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This essay analyzes stress between pile and soil, occupying moisture content data of unsaturated soil in Nanchang with ANSYS. In accordance with engineering practice, it adopts three-dimensional solid model, the same geometric size with engineering practice. It simulates interrelation between pile and soil with contact unit, and shows ontology relation of soil with D-P elastic-plastic model. Convergence has been made with selection and calculation of parameter. The greater the moisture content gets, the smaller the pile body vertical displacement makes. In other words, the smaller the relative

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20

BATON, L. A., and L. C. RANFORD-CARTWRIGHT. "Plasmodium falciparumookinete invasion of the midgut epithelium ofAnopheles stephensiis consistent with the Time Bomb model." Parasitology 129, no. 6 (2004): 663–76. http://dx.doi.org/10.1017/s0031182004005979.

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Plasmodium falciparumgametocytes grownin vitrowere fed through membrane feeders to laboratory-rearedAnopheles stephensimosquitoes. Intact midguts, including entire bloodmeal contents, were removed between 24 and 48 h post-bloodfeeding. Giemsa-stained histological sections were prepared from the midguts and examined by light microscopy. Contrary to previous reports, ookinetes were clearly visible within midgut epithelial cells, demonstrating intracellular migration across the midgut wall. Ookinetes entered epithelial cells through the lateral apical membrane at sites where 3 adjacent cells conv

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21

Smith, Patrick A., Will A. Bezold, Cristi R. Cook, et al. "Kinematic Analysis of Lateral Meniscal Oblique Radial Tears in Anterior Cruciate Ligament–Reconstructed Knees: Untreated Versus Repair Versus Partial Meniscectomy." American Journal of Sports Medicine 50, no. 9 (2022): 2381–89. http://dx.doi.org/10.1177/03635465221102135.

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Background: Lateral meniscal oblique radial tears (LMORTs) affect joint and meniscal stability in anterior cruciate ligament (ACL)–deficient knees. Purpose: To determine the clinically relevant kinematics associated with the most common posterior horn LMORT lesion types, types 3 (LMORT3) and 4 (LMORT4), untreated versus arthroscopic repair versus partial meniscectomy in combination with ACL reconstruction (ACLR). Study: Controlled laboratory study. Methods: Sixteen cadaveric knees underwent robotic testing for anterior drawer and pivot-shift simulations at multiple knee flexion angles in ACL-i

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22

Su, Zhe, Xi-Wei Xu, Shan-Shan Liang, and Erchie Wang. "Seismotectonics of the 2017–2018 Songyuan Earthquake Sequence, Northeastern China: Passive Bookshelf Faulting and Block Rotation in the Songliao Basin." Seismological Research Letters 91, no. 3 (2020): 1593–605. http://dx.doi.org/10.1785/0220190251.

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Abstract The high frequency of earthquake clusters generated by pure strike-slip faulting over the past 3 yr (beginning in 2017 in the Songliao basin, northeastern China) has motivated us to consider why lateral strike slip and not extension determines the seismic activity within the Songliao basin. Precise location and characterization of relocated aftershocks, forward modeling of the coseismic displacement field, and Global Positioning System (GPS) monitoring data are combined to detect the possible seismogenic structures of the Songyuan earthquake sequence. The 2017 ML 5.3 aftershock cluste

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23

Behrens, Bernd-Arno, Hans Jürgen Maier, Christian Klose, et al. "Characterization and Modeling of Intermetallic Phase Formation during the Joining of Aluminum and Steel in Analogy to Co-Extrusion." Metals 10, no. 12 (2020): 1582. http://dx.doi.org/10.3390/met10121582.

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The reinforcement of light metal components with steel allows to increase the strength of the part while keeping the weight comparatively low. Lateral angular co-extrusion (LACE) offers the possibility to produce hybrid coaxial profiles consisting of steel and aluminum. In the present study, the effect of the process parameters temperature, contact pressure and time on the metallurgical bonding process and the development of intermetallic phases was investigated. Therefore, an analogy experiment was developed to reproduce the process conditions during co-extrusion using a forming dilatometer.

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24

Yukizawa, Yohei, Shu Takagawa, Shota Higashihira, Emi Kamono, Yutaka Inaba, and Naomi Kobayashi. "EP2.46 Verification of Optimal Location of Shelf Graft for Acetabular Dysplasia Using Finite Element Analysis and Virtual Surgery Model." Journal of Hip Preservation Surgery 12, Supplement_1 (2025): i68—i69. https://doi.org/10.1093/jhps/hnaf011.220.

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Abstract Background: The shelf acetabuloplasty has received renewed attention as a minimally invasive, joint preservation surgery for developmental dysplasia of the hip joint. However, there has been little scientific validation of the optimal location of the shelf in terms of stress reduction. Clinical Questions: (1) Where is the optimal shelf location for successful stress reduction to the acetabulum? (2) Are there any patient characteristics that indicate limitations of shelf acetabuloplasty that make it difficult to obtain load distribution? Patients and Methods: Preoperative computed tomo

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25

Griffiths, Ross W., and Jonathan H. Fink. "Effects of surface cooling on the spreading of lava flows and domes." Journal of Fluid Mechanics 252 (July 1993): 667–702. http://dx.doi.org/10.1017/s0022112093003933.

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Scaling analyses describe the evolution of an extrusion of viscous or plastic fluid in the presence of surface cooling and solidification, under the assumption that the flows consist of two components: an isothermal interior and a surface crust. The ‘crust’ is a complex thermal and rheological boundary layer which we model using a viscous, plastic or brittle rheology. These models are thought to be relevant to some types of lava flows and address the effects of cooling on their morphology and rate of advance of the flow front. They show that effects of crust strength will dominate over both vi

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26

Guo, Peng, Zhujun Han, Shaopeng Dong, Fan Gao, and Jiani Li. "New Constraints on Slip Behavior of the Jianshui Strike-Slip Fault from Faulted Stream Channel Risers and Airborne Lidar Data, SE Tibetan Plateau, China." Remote Sensing 13, no. 10 (2021): 2019. http://dx.doi.org/10.3390/rs13102019.

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The temporal slip behavior of a fault from displaced landforms when there are no chronological data remains poorly understood. The southern segment of the Xiaojiang fault zone (XJFZ) plays an important role in accommodating the lateral extrusion of the SE Tibetan plateau. However, there are few reports on the evolution of the offset landforms and slip behavior of the fault due to the dense vegetation in the region. Here, offset landforms along the Jianshui fault (JSF) in the southern segment of the XJFZ are systematically interpreted and measured using high-resolution satellite imagery, field

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27

Zhang, Guifang, Chunyan Qu, Xinjian Shan, Xiaogang Song, Yingfeng Zhang, and Yanchuan Li. "Present-Day Crustal Deformation of the Northwestern Tibetan Plateau Based on InSAR Measurements." Remote Sensing 15, no. 21 (2023): 5195. http://dx.doi.org/10.3390/rs15215195.

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In this study, The ENVISAT advanced synthetic aperture radar observations from 2003 to 2010 of a descending track covering an area of 100 km × 300 km were used to map the surface velocity field in northwestern Tibet. The derived line-of-sight (LOS) velocity map revealed that interseismic deformation was mainly located on the Altyn Tagh Fault (ATF) and other four immature subsidiary faults (i.e., Tashikule Fault, Muzitage-jingyuhe Fault, Heishibeihu Fault, and Woniuhu Fault). A 2D elastic screw dislocation model was used to interpret the interferometric synthetic aperture radar (InSAR) velocity

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28

Fujita, K., B. M. Koz'min, K. G. Mackey, S. A. Riegel, M. S. McLean, and V. S. Imaev. "Seismotectonics of the Chersky Seismic Belt, eastern Sakha Republic (Yakutia) and Magadan District, Russia." Stephan Mueller Special Publication Series 4 (September 17, 2009): 117–45. http://dx.doi.org/10.5194/smsps-4-117-2009.

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Abstract. The Chersky seismic belt represents a zone of deformation between the North American and Eurasian plates in northeast Russia. The belt extends from the Laptev Sea into the Chersky Range where it splits into two branches. One branch extends to Kamchatka and the Aleutian-Kurile Junction, while the other branch extends south towards Sakhalin Island. Focal mechanisms indicate a change from extension to transpression in the northern Verkhoyansk Range and generally left-lateral transpression in the Chersky Range extending to northern Kamchatka. The few focal mechanisms on the second branch

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29

Li, S. P., G. Chen, and J. W. Li. "Analysis of crustal deformation and strain characteristics in the Tianshan Mountains with least-squares collocation." Solid Earth Discussions 7, no. 4 (2015): 3179–97. http://dx.doi.org/10.5194/sed-7-3179-2015.

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Abstract. By fitting the observed velocity field of the Tianshan Mountains from 1992 to 2006 with least-squares collocation, we established a velocity field model in this region. The velocity field model reflects the crustal deformation characteristics of the Tianshan reasonably well. From the Tarim Basin to the Junggar Basin and Kazakh platform, the crustal deformation decreases gradually. Divided at 82° E, the convergence rates in the west are obviously higher than those in the east. We also calculated the parameter values for crustal strain in the Tianshan Mountains. The results for maximum

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Yu, Sihan, and Xiaoning Su. "A Crustal Deformation Pattern on the Northeastern Margin of the Tibetan Plateau Derived from GPS Observations." Remote Sensing 15, no. 11 (2023): 2905. http://dx.doi.org/10.3390/rs15112905.

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The northeastern margin is a natural experimental field for studying crustal extrusion and expansion mechanisms. The accurate crustal deformation pattern is a key point in the analysis of regional deformation mechanisms and seismic hazard research and judgment. In this paper, the present-day GPS velocity field on the northeastern margin of the Tibetan Plateau was obtained from encrypted GPS observations around the Haiyuan–Liupanshan fault zone, combined with GPS observations on the northeastern margin of the Tibetan Plateau from 2010 to 2020. Firstly, we divided the study area into three relat

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Flegler, Vanessa Judith, Akiko Rasmussen, Karina Borbil, et al. "Mechanosensitive channel gating by delipidation." Proceedings of the National Academy of Sciences 118, no. 33 (2021): e2107095118. http://dx.doi.org/10.1073/pnas.2107095118.

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The mechanosensitive channel of small conductance (MscS) protects bacteria against hypoosmotic shock. It can sense the tension in the surrounding membrane and releases solutes if the pressure in the cell is getting too high. The membrane contacts MscS at sensor paddles, but lipids also leave the membrane and move along grooves between the paddles to reside as far as 15 Å away from the membrane in hydrophobic pockets. One sensing model suggests that a higher tension pulls lipids from the grooves back to the membrane, which triggers gating. However, it is still unclear to what degree this model

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32

Mahapatra, Shilpa, Smruti Chandan Mohapatra, and Ratna Parameswaran. "A comparative evaluation of pre-treatment and post-treatment outcomes in patients subjected to lower incisor extraction." Journal of Contemporary Orthodontics 8, no. 1 (2024): 36–41. http://dx.doi.org/10.18231/j.jco.2024.006.

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Mandibular incisor crowding is the most frequently occurring characteristic of malocclusion, which can be resolved by removing single lower incisor. The aim of this study was to evaluate and compare the pre- and post-treatment outcomes through model and cephalometric analysis of the patients subjected to single lower incisor extraction. In this retrospective study pre- and post-treatment lateral cephalograms and models of 23 patients who underwent fixed orthodontic treatment with single incisor extraction on lower arch were evaluated. The study subjects were classified into two groups based on

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33

Kalyuzhniy, Volodymyr, Oleksandr Yarmolenko, and Kostyantyn Marchuk. "Stamping a medium – sized cartridge blank from low – carbon steel." Mechanics and Advanced Technologies 5, no. 1 (2021): 113–21. http://dx.doi.org/10.20535/2521-1943.2021.5.1.234466.

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The work is devoted to obtaining a medium – sized cartridge blank from low-carbon steel. The sequence of punching transitions includes a hot back- extrusion operation, two cold draw – thinning operations, and a cold crimp operation. Modeling using the finite element method established: efforts and specific forces during operations, thermal effect during shaping, shape and size of semi – finished products with distributions of strain intensity. An elastoplastic metal model was used, which made it possible to reveal the forces of extracting the tool from deformed semifinished products and the fo

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34

Hadlari, T., and R. H. Rainbird. "Retro-arc extension and continental rifting: a model for the Paleoproterozoic Baker Lake Basin, Nunavut1Geological Survey of Canada Contribution 20100436." Canadian Journal of Earth Sciences 48, no. 8 (2011): 1232–58. http://dx.doi.org/10.1139/e11-002.

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Within Baker Lake sub-basin, the ca. 1.84–1.78 Ga Baker Sequence formed in two stages. At the start of the first stage, during rift initiation, half-graben were host to siliciclastic alluvial, eolian, and lacustrine deposits and to localized felsic minette volcanics. Back-stepping of facies indicate high accommodation rates and areal expansion, which, combined with extrusion of voluminous minette volcanic rocks, are interpreted to record increased extension and rift climax. Low accommodation post-rift deposits from the second stage of basin development are relatively thin and coeval felsite do

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Wang, Lifeng, Shuo Zhang, Shiqiang Li, et al. "Laboratory Test Study on Pile Jacking Penetration Mechanism Considering Different Diameter and Length Based on Photoelectric Integration Technology." Buildings 13, no. 5 (2023): 1247. http://dx.doi.org/10.3390/buildings13051247.

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Model tests are carried out on the jacked single piles of different diameters and pile lengths under the model pile of different diameters and pile lengths in clayey soil, which aims to investigate the penetration mechanical mechanism. How to accurately test the pile end resistance and pile side resistance during jacked pile sinking is particularly important. In this paper, a full-section spoke-type pressure sensor, a double diaphragm temperature self-compensating fiber Bragg grating (FBG) earth pressure sensor and a sensitized miniature FBG strain sensor are jointly applied to a single pile p

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Kang, Wenjun, Xiwei Xu, Michael E. Oskin, et al. "Characteristic slip distribution and earthquake recurrence along the eastern Altyn Tagh fault revealed by high-resolution topographic data." Geosphere 16, no. 1 (2019): 392–406. http://dx.doi.org/10.1130/ges02116.1.

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Abstract The seismic cycle model is roughly constrained by limited offset data sets from the eastern Altyn Tagh fault with a low slip rate. The recent availability of high-resolution topographic data from the eastern Altyn Tagh fault provides an opportunity to obtain distinctly improved quantitative, dense measurements of fault offsets. In this paper, we used airborne light detection and ranging data and unmanned aircraft vehicle photogrammetry to evaluate fault offsets. To better constrain the large earthquake recurrence model, we acquired dense data sets of fault displacements using the LaDi

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Wang, Xuezhen, Hao Zhou, and Jiangtao Ji. "Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations." Agriculture 12, no. 11 (2022): 1830. http://dx.doi.org/10.3390/agriculture12111830.

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Mechanical subsoiling is an effective practice to promote better water infiltration and crop root development. The bending subsoiling tool (BST) is a primary subsoiling tool and is used to remove soil compaction and restore soil productivity. In this study, a discrete element model was developed and validated using laboratory soil bin tests to investigate the effects of the mounting angle of the BST (5°–33°) on soil disturbance behaviors and draft forces. The results show that the upheaval, failure and fragmentation of soil was achieved by successive shearing, uplifting, extrusion, tension and

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Pounds, G., A. Liu, A. Jones, and L. Jennings. "DEVELOPMENT OF A PRE-CLINICAL EXPERIMENTAL MODEL TO MEASURE MEDIAL MENISCUS POSITION DURING A SIMULATED GAIT CYCLE OF THE KNEE JOINT." Orthopaedic Proceedings 105-B, SUPP_9 (2023): 59. http://dx.doi.org/10.1302/1358-992x.2023.9.059.

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The aim of this work was to develop a novel, accessible and low-cost method, which is sufficient to measure changes in meniscal position in a whole-knee joint model performing dynamic motion in a knee simulator.An optical tracking method using motion markers, MATLAB (MATLAB, The MathWorks Inc.) and a miniature camera system (Raspberry Pi, UK) was developed. Method feasibility was assessed on porcine whole joint knee samples (n = 4) dissected and cemented to be used in the simulator (1). Markers were placed on three regions (medial, posterior, anterior) of the medial meniscus with corresponding

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Kiss, Dániel, Thibault Duretz, and Stefan Markus Schmalholz. "Tectonic inheritance controls nappe detachment, transport and stacking in the Helvetic nappe system, Switzerland: insights from thermomechanical simulations." Solid Earth 11, no. 2 (2020): 287–305. http://dx.doi.org/10.5194/se-11-287-2020.

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Abstract. Tectonic nappes have been investigated for more than a hundred years. Although geological studies often refer to a “nappe theory”, the physical mechanisms of nappe formation are still disputed. We apply two-dimensional numerical simulations of shortening of a passive margin to investigate the thermomechanical processes of detachment (or shearing off), transport and stacking of nappes. We use a visco-elasto-plastic model with standard creep flow laws, Drucker–Prager and von Mises yield criteria. We consider tectonic inheritance with two initial mechanical heterogeneities: (1) lateral

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Wang, Min, Fan Wang, Xin Jiang, et al. "GPS determined coseismic slip of the 2021 Mw7.4 Maduo, China, earthquake and its tectonic implication." Geophysical Journal International 228, no. 3 (2021): 2048–55. http://dx.doi.org/10.1093/gji/ggab460.

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SUMMARY The 2021 Mw7.4 Maduo earthquake occurred on the Jiangcuo fault within the Bayan Har block in eastern Tibet. It is a rather unique event and attests that large earthquakes can occur in the interior of major tectonic blocks within the Tibetan plateau. By processing GPS data observed in the eastern Tibet region, we produce a data set documenting 3-D coseismic displacements of the Maduo earthquake. Using the data set to constrain a coseismic slip model, we find that the earthquake ruptured a nearly vertical fault about 170 km in length, with ∼90% of the moment released in the shallow layer

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Vanaclocha, Amparo, Vicente Vanaclocha, Carlos M. Atienza, et al. "Nucleus Disc Replacement: Design and Material Selection FEA Analysis." Advances in Materials Science and Engineering 2022 (October 31, 2022): 1–14. http://dx.doi.org/10.1155/2022/5040747.

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Study Design. We selected the materials and implant design and performed Finite Element Analysis (FEA) studies. Background. Nucleus disc replacements, implanted since 1960, have undergone continuous evolution in materials and designs, but subsidence, extrusion, and in vivo degradation limit widespread use. Aim. The aim of this study is to create a new nucleus disc replacement that avoids the abovementioned drawbacks. Material and Methods. We created eighteen designs with varied materials and analyzed them with FEA in compression and shear tests in a lumbar spine model programmed in Ansys Param

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Kim, Yeji, Chanyoung Song, Gyuseon Song, Sol Bi Kim, Hyun-Wook Han, and Inbo Han. "Using Natural Language Processing to Identify Low Back Pain in Imaging Reports." Applied Sciences 12, no. 24 (2022): 12521. http://dx.doi.org/10.3390/app122412521.

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A natural language processing (NLP) pipeline was developed to identify lumbar spine imaging findings associated with low back pain (LBP) in X-radiation (X-ray), computed tomography (CT), and magnetic resonance imaging (MRI) reports. A total of 18,640 report datasets were randomly sampled (stratified by imaging modality) to obtain a balanced sample of 300 X-ray, 300 CT, and 300 MRI reports. A total of 23 radiologic findings potentially related to LBP were defined, and their presence was extracted from radiologic reports. In developing NLP pipelines, section and sentence segmentation from the ra

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Abdallah, Yomna K., and Alberto T. Estévez. "Biowelding 3D-Printed Biodigital Brick of Seashell-Based Biocomposite by Pleurotus ostreatus Mycelium." Biomimetics 8, no. 6 (2023): 504. http://dx.doi.org/10.3390/biomimetics8060504.

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Mycelium biocomposites are eco-friendly, cheap, easy to produce, and have competitive mechanical properties. However, their integration in the built environment as durable and long-lasting materials is not solved yet. Similarly, biocomposites from recycled food waste such as seashells have been gaining increasing interest recently, thanks to their sustainable impact and richness in calcium carbonate and chitin. The current study tests the mycelium binding effect to bioweld a seashell biocomposite 3D-printed brick. The novelty of this study is the combination of mycelium and a non-agro–based su

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Li, Jun, Xuben Wang, Qingyan Qin, Gang Zhang, Dahu Li, and Jun Zhou. "Deep physical structure and geotectonic implications of the eastern margin of the Qinghai–Tibet Plateau." Earth Sciences Research Journal 20, no. 4 (2016): 1. http://dx.doi.org/10.15446/esrj.v20n4.61632.

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The eastern margin of the Qinghai–Tibet Plateau (QTP) is the focus of studies on eastward lateral extrusion of the latter’s crustal material. This study aims to explore the structural response of the QTP’s eastern crust–mantle to the extrusion, and the basis for the latter’s geological structure. Data on long-period magnetotelluric sounding of cross-tectonic units and Bouguer gravity were used to determine the physical structure of the crust–mantle at the plateau’s eastern margin. The findings are as follows: (i) the apparent density structure indicates extensive presence of a low-density mate

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Choe, Robert, Eoin Devoy, Blake Kuzemchak, et al. "Computational investigation of interface printing patterns within 3D printed multilayered scaffolds for osteochondral tissue engineering." Biofabrication 14, no. 2 (2022): 025015. http://dx.doi.org/10.1088/1758-5090/ac5220.

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Abstract Osteoarthritis is a highly prevalent rheumatic musculoskeletal disorder that commonly affects many joints. Repetitive joint overloading perpetuates the damage to the affected cartilage, which undermines the structural integrity of the osteochondral unit. Various tissue engineering strategies have been employed to design multiphasic osteochondral scaffolds that recapitulate layer-specific biomechanical properties, but the inability to fully satisfy mechanical demands within the joint has limited their success. Through computational modeling and extrusion-based bioprinting, we attempted

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Vosgerau, Henrik, Pierpaolo Guarnieri, Rikke Weibel, et al. "Sedimentology and reservoir architecture of a widespread siliciclastic intra-lava unit, Kangerlussuaq, East Greenland." Journal of Sedimentary Research 91, no. 6 (2021): 662–82. http://dx.doi.org/10.2110/jsr.2021.02.

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ABSTRACT The Rosebank hydrocarbon discovery in 2004 proved that intra-lava sandstones form attractive reservoirs in the Faroe–Shetland Basin and the new volcanic play triggered the need for suitable analogues to describe and assess sedimentology, reservoir architecture, compartmentalization, and connectivity of intra-lava siliciclastic units. The onshore Kangerlussuaq Basin in East Greenland offers the opportunity to study Paleogene intra-lava siliciclastic sandstones and their interaction with lavas, on the scale of the Rosebank Field. The focus of this study is a siliciclastic-dominated intr

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Weimin, Gao, Li Xiangdong, and Bai Yuxing. "An assessment of late fixed functional treatment and the stability of Forsus appliance effects." Australasian Orthodontic Journal 30, no. 1 (2014): 2–10. http://dx.doi.org/10.2478/aoj-2014-0001.

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Abstract Objective: To evaluate the treatment effects and stability of Forsus appliance therapy. Methods: Thirty-one patients (15 males, 16 females) with a mean age of 15.8 ± 3.1 years (range 13 to 17.6 years, 15.3 ± 1.2 years for females and 16.5 ± 1.6 years for males) were selected. All patients had passed beyond their pubertal growth phase (after CS4 or MP3cap). Lateral cephalograms and three-dimensional (3D) models were analysed before treatment (T0), at the end of treatment (T1) and at a follow-up visit (T2). The mean period from T1 to T2 was 25 months and ranged from 17 to 32 months. Too

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Zhang, Xueying, Xiang-Hua Deng, Zhe Song, et al. "Matrix Metalloproteinase Inhibition With Doxycycline Affects the Progression of Posttraumatic Osteoarthritis After Anterior Cruciate Ligament Rupture: Evaluation in a New Nonsurgical Murine ACL Rupture Model." American Journal of Sports Medicine 48, no. 1 (2019): 143–52. http://dx.doi.org/10.1177/0363546519887158.

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Background: Doxycycline has broad-spectrum activity as a matrix metalloproteinase (MMP) inhibitor and thus could reduce the progression of posttraumatic osteoarthritis (PTOA) after anterior cruciate ligament (ACL) rupture. Hypothesis: Doxycycline would inhibit progression of PTOA in a murine ACL rupture model. Study Design: Controlled laboratory study. Methods: For the in vitro study, cadaveric C57BL/6 male mice knees (N = 108) were used for the development of a nonsurgical ACL rupture model. For the in vivo study, 24 C57BL/6 male mice then underwent ACL rupture with our manual procedure and w

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Wan, Zhihui, Heng Liu, Feng Zhou, and Guoliang Dai. "Axial Bearing Mechanism of Post-Grouted Piles in Calcareous Sand." Applied Sciences 12, no. 5 (2022): 2731. http://dx.doi.org/10.3390/app12052731.

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Post-grouted piles, as a foundation form for large-span and large-scale structures on calcareous sand, are expected to provide a high bearing capacity, but research on the response of post-grouted piles subjected to axial load in calcareous sand is still in the exploratory stage. In this paper, a model test is constructed for static pressure piles in calcareous sand under axial loading. The response of axial compressive piles, with and without post-grouting, in calcareous sand were investigated, and the test results were compared with those of axial compressive piles, with and without post-gro

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Paffrath, Marcel, Wolfgang Friederich, Stefan M. Schmid, and Mark R. Handy. "Imaging structure and geometry of slabs in the greater Alpine area – a P-wave travel-time tomography using AlpArray Seismic Network data." Solid Earth 12, no. 11 (2021): 2671–702. http://dx.doi.org/10.5194/se-12-2671-2021.

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Abstract. We perform a teleseismic P-wave travel-time tomography to examine the geometry and structure of subducted lithosphere in the upper mantle beneath the Alpine orogen. The tomography is based on waveforms recorded at over 600 temporary and permanent broadband stations of the dense AlpArray Seismic Network deployed by 24 different European institutions in the greater Alpine region, reaching from the Massif Central to the Pannonian Basin and from the Po Plain to the river Main. Teleseismic travel times and travel-time residuals of direct teleseismic P waves from 331 teleseismic events of

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