Results 31 to 40 of about 768,686 (296)

Establishment and Verification of Nonlinear Bolt Head Connection Stiffness Theoretical Model Based on Levenberg-Marquardt Method

IEEE Access, 2020
Although some scholars have established the calculation method of bolt head connection characteristics, the method contains fewer influence factors; the calculation accuracy is not high, and the general applicability is limited.
Shikun Lu, Dengxin Hua, Yan Li, Pengyang Li   +3 more
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The Stiff Elbow [PDF]

HAND, 2009
Elbow motion is essential for upper extremity function to position the hand in space. Unfortunately, the elbow joint is prone to stiffness following a multitude of traumatic and atraumatic etiologies. Elbow stiffness can be diagnosed with a complete history and physical exam, supplemented with appropriate imaging studies. The stiff elbow is challenging
Sumon, Nandi, Steven, Maschke, Peter J, Evans, Jeffrey N, Lawton   +3 more
openaire   +2 more sources

Laboratory Evaluation of Organic and Chemical Warm Mix Asphalt Technologies for SMA Asphalt

The Baltic Journal of Road and Bridge Engineering, 2012
Warm mix asphalt (WMA) technologies allow significant lowering of the production and paving temperature of the conventional hot mix asphalt (HMA), which promise various benefits, e.g. lowering the greenhouse gas emissions, reduction of energy consumption,
Martins Zaumanis, Eric Olesen, Viktors Haritonovs, Guntis Brencis, Juris Smirnovs   +4 more
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3D Collagen-Nanocellulose Matrices Model the Tumour Microenvironment of Pancreatic Cancer

Frontiers in Digital Health, 2021
Three-dimensional (3D) cancer models are invaluable tools designed to study tumour biology and new treatments. Pancreatic ductal adenocarcinoma (PDAC), one of the deadliest types of cancer, has been progressively explored with bioengineered 3D approaches
Rodrigo Curvello, Verena Kast, Mohammed H. Abuwarwar, Anne L. Fletcher, Gil Garnier, Gil Garnier, Daniela Loessner, Daniela Loessner, Daniela Loessner   +8 more
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Carotid stiffness and physical activity in elderly : a short report of the SAPALDIA 3 cohort study [PDF]

, 2015
Regular physical activity has been shown to reduce cardiovascular disease risk in the general population. While smaller studies in specified groups (highly trained versus untrained individuals) indicate a certain dose-dependent effect of physical ...
Wanner, Miriam, Arno Schmidt-Trucksäss, Autenrieth, Christine S, Simon Endes, Emmanuel Schaffner, Christian Schindler, Eric de Groot, Jean-Michel Gaspoz, Dratva, Julia, Julia Dratva, Martin, Brian, Christine S Autenrieth, de Groot, Eric, Probst-Hensch, Nicole, Christine S. Autenrieth, Miriam Wanner, Künzli, Nino, Schmidt-Trucksäss, Arno, Nino Künzli, Endes, Simon, Autenrieth, Christine S., Seraina Caviezel, Schaffner, Emmanuel, Nicole Probst-Hensch, Schindler, Christian, Gaspoz, Jean-Michel, Brian Martin, Caviezel, Seraina, Dratva J, Autenrieth CS, Schaffner E, Caviezel Seraina, Gaspoz JM, Endes Simon, Schindler C, Probst-Hensch Nicole, Martin Brian, Dratva Julia, Künzli N, de Groot Eric, Autenrieth Christine S., Gaspoz Jean-Michel, Wanner Miriam, Schaffner Emmanuel, Künzli Nino, Caviezel S, Probst-Hensch N, Schindler Christian, de Groot E, Martin B, Endes S, Wanner M, Schmidt-Trucksäss Arno, Schmidt-Trucksäss A   +53 more
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Morphological and functional changes in the vertebral column with increasing aquatic adaptation in crocodylomorphs [PDF]

Royal Society Open Science, 2015
The lineage leading to modern Crocodylia has undergone dramatic evolutionary changes in morphology, ecology and locomotion over the past 200+ Myr. These functional innovations may be explained in part by morphological changes in the axial skeleton, which
Julia L. Molnar, Stephanie E. Pierce, Bhart-Anjan S. Bhullar, Alan H. Turner, John R. Hutchinson   +4 more
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Association of arterial stiffness with single nucleotide polymorphism rs1333049 and metabolic risk factors [PDF]

, 2013
The electronic version of this article is the complete one and can be found online at: http://www.cardiab.com/content/12/1/93. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.
Veerapol Kukongviriyapan, Vichai Senthong, Suphawadee Phababpha, Upa Kukongviriyapan, Chatri Settasatian, Pyatat Tatsanavivat, Senggunprai, L, Nantarat Komanasin, Poungrat Pakdeechote, Pakdeechote, P, Komanasin, N, Tatsanavivat, P, Nongnuch Settasatian, Senthong, V, Phongsak Intharaphet, Stephen E Greenwald, Settasatian, C, Intharaphet, P, Kukongviriyapan, V, Kukongviriyapan, U, Phababpha, S, Greenwald, SE, Laddawan Senggunprai, Settasatian, N   +23 more
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Jump performance and handgrip strength do not reflect acute fatigue in elite trail runners after the 2023 world trail running championship

Frontiers in Sports and Active Living
PurposeFatigue manifests as a decline in maximal voluntary contraction (MVC), driven by both central and peripheral factors. Studies have shown reduced maximum isometric force in knee extensor and plantar flexor muscles after ultradistance trail running.
Diego Jaén-Carrillo, Felipe García-Pinillos, Felipe García-Pinillos, Felipe García-Pinillos, Pedro E. Alcaraz, Cristian Marín-Pagán, Francisco J. Martínez-Noguera, Peter A. Federolf   +7 more
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Feedback linearization and simultaneous stiffness-position control of robots with antagonistic actuated joints. [PDF]

, 2007
In this paper, the dynamic model of a robot with antagonistic actuated joints is presented, and the problem of full linearization via static state feedback is analyzed. The use of transmission elements with nonlinear relation between the displacement and
Hirzinger, Gerd, C. Melchiorri, M. Grebenstein, T. Wimbock, Palli, G., Grebenstein, Markus, MELCHIORRI, CLAUDIO, T. Wimboeck, Melchiorri, C., Wimböck, Thomas, G. Hirzinger, G. Palli, PALLI, GIANLUCA   +12 more
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Deformation and stiffness of spur gear teeth and their influence on gear noise [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2015
Gear teeth are deformed due to the load. The deformation of gear teeth is causing some negative as well as positive effects. A tooth has a complex shape and due to the complex shape of the teeth, a theoretical determination of the deformation is ...
Silvia MEDVECKÁ-BEŇOVÁ
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