Maryam Rezai Rad¹, Sadra Mohaghegh², Farnaz Kouhestani³, Saeed Reza Motamedian^4,*

Molecular & Cellular Biomechanics, Vol.18, No.2, pp. 51-67, 2021, DOI:10.32604/mcb.2021.015136

Abstract This article is a scoping review of the studies that assessed the effect of mechanical forces on the behavior of dental stem cells (DSCs). PubMed and Scopus searches were done for in-vitro studies evaluating the effect of tension, hydrostatic pressure (i.e., the pressure applied through an incompressible fluid), compression, simulated microgravity, and vibration on DSCs. The following factors were analyzed: osteogenic/odontogenic differentiation, proliferation, adhesion and migration. Articles were reviewed according to the Preferred Reporting Items for Systematic Reviews extension for scoping reviews (PRISMA-ScR) guideline. Included studies were evaluated based on the modified Consolidated Standards of Reporting Trials (CONSORT). A total… More >

Yin Wang^1,*, Lingling Wang², Yong Ji¹, Zhicheng Xi¹, Wenwen Zhang¹

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.2, pp. 471-485, 2021, DOI:10.32604/fdmp.2021.014652

Abstract A three dimensional (3D) numerical wave flume is used to investigate carefully the ISWs (Internal solitary wave) forces acting on cylinders interacting with a stratified shear environment. Using the Large-Eddy Simulation (LES) approach and analyzing the distribution of shear stress and pressure along the surface of the cylinder, the differential pressure resistance and the viscous force are obtained. The method of multiple linear regression analysis is adopted and a comprehensive influence coefficient is determined accordingly to account for the dimensionless forces acting on the cylinder. Results show that the differential pressure resistance on a square cylinder is 1.5 times higher… More >

Xuguang Liu¹, Ruqing Zhao², Qifei Chen², Ming Shi³, Ziling Xing², Yanan Zhang^4,*

Journal on Big Data, Vol.2, No.2, pp. 85-93, 2020, DOI:10.32604/jbd.2020.013845

Abstract The shooting state during shooting refers to the basketball’s shooting speed, shooting angle and the ball’s rotation speed. The basketball flight path is also related to these factors. In this paper, based on the three forces of Gravity, Air Resistance and Magnus Force, the “Three Forces” model is established, the Kinetic equations are derived, the basketball flight trajectory is solved by simulation, and the best shot state when shooting is obtained through the shooting percentage. Compared with the “Single Force” model that only considers Gravity, the shooting percentage of the “Three Forces” model is higher. The reason is that the… More >

Yongliang Wang¹, Dana N LeVine², Xuefeng Wang^1,3,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 105-105, 2019, DOI:10.32604/mcb.2019.07872

Abstract Platelets are important blood cells mediating hemostasis and thrombosis. Integrin tension plays a critical role in most platelet functions, such as adhesion, activation, aggregation and contraction. Visualizing and measuring single platelet forces are desired in both research and diagnosis of platelet functions. Here we developed integrative tension sensor (ITS) which converts integrin molecular tension to fluorescent signal, therefore enabling cellular force mapping directly by fluorescence imaging. With the ITS, we mapped integrin-transmitted platelet force at 0.4 µm resolution during platelet adhesion and contraction. We found that platelet force distribution has strong polarization which is sensitive to treatment with anti-platelet drugs,… More >

S.D. Akbarov^1,2

CMC-Computers, Materials & Continua, Vol.33, No.1, pp. 63-85, 2013, DOI:10.3970/cmc.2013.033.063

Abstract An attempt is made into the investigation of longitudinal axisymmetric wave propagation in the DWCNT with the use of the exact equations of motion of the linear theory of elastodynamics. The DWCNT is modeled as concentricallynested two circular hollow cylinders between which there is free space. The difference in the radial displacements of these cylinders is coupled with the van der Waals forces and it is assumed that full slipping conditions occur on the inner surface of the outer tube and on the outer surface of the inner tube. Numerical results on the influence of the problem parameters such as… More >

F. X. Hart¹

Molecular & Cellular Biomechanics, Vol.3, No.4, pp. 235-235, 2006, DOI:10.32604/mcb.2006.003.235

Abstract This article has no abstract. More >

B. Li¹, L. Xie¹, Z. C. Starr¹, Z. Yang¹, J. H-C. Wang^1*

Molecular & Cellular Biomechanics, Vol.3, No.4, pp. 195-196, 2006, DOI:10.32604/mcb.2006.003.195

Abstract This article has no abstract. More >

Warren D. Marcus^1,2, Rodger P. McEver³, Cheng Zhu¹

Molecular & Cellular Biomechanics, Vol.1, No.4, pp. 245-252, 2004, DOI:10.3970/mcb.2004.001.245

Abstract When a cell adhered to another cell or substratum via surface proteins is forced to detach, lipid membrane tethers are often extruded from the cell surface before the protein bond dissociates. For example, during the inflammatory reaction leukocytes roll on the surface of activated endothelial cells. The rolling adhesion is mediated by interactions of selectins with their ligands, e.g., P-selectin glycoprotein ligand (PSGL)-1, which extrudes membrane tethers from the surfaces of both leukocytes and endothelial cells. Membrane tether extrusion has been suggested to regulate leukocyte rolling. Here we examine several factors that may affect forces required to initiate membrane tethers,… More >

R. Muhammad*, A. Maurotto, M. Demiral, A. Roy and V.V. Silberschmidt

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.3, pp. 95-96, 2011, DOI:10.3970/icces.2011.019.095

Abstract Analysis of the cutting process in machining of modern engineering materials (Ti- and Ni-based alloys), which are hard-to-cut materials, is a challenge that needs to be addressed. Machining of these alloys with conventional techniques is difficult and often results in tool failure due to the high cutting forces imposed on the tool. In a machining operation, cutting forces causes severe deformations in the proximity of the cutting edge, producing high stresses, strain, strain-rates and temperatures in the workpiece.
Ultrasonically assisted turning (UAT) is an advanced machining process, which has shown several advantages especially in the machining of high strength… More >

Kevin Schmitz^1,*, Paul Judt¹, Andreas Ricoeur¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.21, No.1, pp. 12-12, 2019, DOI:10.32604/icces.2019.05164

Abstract In order to evaluate cracks in three-dimensional (3D) specimens, it is necessary to perform crack loading analyses. Loading quantities are calculated, employing the distribution of stress and strain in the vicinity of the crack front. In thin planar structures with plane mode I/II loading, analyses at simplified two-dimensional boundary value problems provide sufficiently accurate loading quantities. However, for an increasing thickness or presence of mode III loading, the plane assumptions in general lose their validity. Three-dimensional structures exhibit spatial stresses, leading to a non-constant stress distribution along the crack front and to non-uniform crack front loading, respectively. As a result,… More >