Open Access
ARTICLE
B. Umadevi1,*, C. V. Vinay1, P. A. Dinesh2
Molecular & Cellular Biomechanics, Vol.18, No.4, pp. 157-172, 2021, DOI:10.32604/mcb.2021.015605
Abstract A mathematical model has been developed to study the effect of particle drag parameter and frequency parameter on velocity and pressure gradient in nonlinear oscillatory two phase flow. The main purpose is to apply the model to study the combined effect of introduction of the catheter and elastic properties of the arterial wall on the pulsatile nature of the blood flow. We model the artery as an isotropic thin walled elastic tube and the catheter as a coaxial flexible tube. Blood is modeled as an incompressible particulate viscous Newtonian fluid. Perturbation technique has been applied to find the approximations for… More >
Open Access
ARTICLE
Zhonghang Zhao, Aimin Ji*, Changsheng Chen
Molecular & Cellular Biomechanics, Vol.18, No.4, pp. 173-185, 2021, DOI:10.32604/mcb.2021.016238
Abstract Premature fracture of the bone plate caused by fatigue crack is the main failure mode in treating femoral shaft fracture. In order to improve the durability of the plate, this study proposed a crack attraction hole (CAH) to retard the crack propagation based on the fracture mechanics. In this paper, a numerical model of the femoral fracture internal fixation system was constructed, in which the femur was developed using a validated simplified model. First, the fatigue crack initiation location was defined at the stress concentration through static analysis. Next, with the joint simulation method of Franc3D and ABAQUS, the fatigue… More >
Open Access
REVIEW
Fatemeh Rahbar1, Avid Farhang Fagheh2, Ayda Khosravi2, Siavash Shariatzadeh2,3,*, Reza Akhavan-Sigari4
Molecular & Cellular Biomechanics, Vol.18, No.4, pp. 187-199, 2021, DOI:10.32604/mcb.2021.017750
Abstract The protein ERp57 is a stress-responsive protein, mainly exists in the endoplasmic reticulum (ER), and a small amount in the cell membrane, cytoplasm, nucleus and mitochondria, which is involved in the signal transduction from the cell surface, the regulation process that occurs in the nucleus, and the formation of polymer protein complexes involved in DNA repair. Various degrees of ERp57 dysregulation has been observed in many types of non-communicable diseases especially in cancers. Previous studies showed that the expression of ERp57 could play a key role in occurrence and development of cancers such as breast cancer, gastric cancer, ovarian cancer,… More >
Open Access
ARTICLE
S. Poovizhi, T. R. Ganesh Babu, R. Praveena*
Molecular & Cellular Biomechanics, Vol.18, No.4, pp. 201-219, 2021, DOI:10.32604/mcb.2021.017984
Abstract Skin is the largest organ and outer enclosure of the integumentary system that protects the human body from pathogens. Among various cancers in the world, skin cancer is one of the most commonly diagnosed cancer which can be either melanoma or non-melanoma. Melanoma cancers are very fatal compared with non-melanoma cancers but the chances of survival rate are high when diagnosed and treated earlier. The main aim of this work is to analyze and investigate the performance of Non-Subsampled Bendlet Transform (NSBT) on various classifiers for detecting melanoma from dermoscopic images. NSBT is a multiscale and multidirectional transform based on… More >
Open Access
ARTICLE
Wei Jiang1,*, Gang He2
Molecular & Cellular Biomechanics, Vol.18, No.4, pp. 221-229, 2021, DOI:10.32604/mcb.2021.017050
Abstract Tennis service is an important part of winning a match. This study analyzed the mechanics of tennis serving speed and divided ten tennis players into two groups. One group carried out conventional training, while the other group carried out auxiliary training on shoulders through elastic band besides conventional training. The actions were photographed by cameras and analyzed. The results showed that the throwing height and hitting point height of the two groups improved after the experiment, and p < 0.05 in the comparison between Groups A and B; the ball deflection angle reduced after throwing, but the improvement of Group B was… More >
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