Results 91 to 100 of about 1,077,204 (312)

Model of End Milling Force Based on Undeformed Chip Surface with NURBS in Peripheral Milling

, 2010
A new cutting force model for peripheral milling is presented based-on a developed algorithm for instantaneous undeformed chip surface with NURBS. To decrease the number of the differential element, the contact cutting edges of end-milling cutter with ...
Pu XY(普雄鹰), Zhao JB(赵吉宾), Liu WJ(刘伟军)   +2 more
core  

Dynamic Hysteresis Model and Control Methodology for Force Output Using Piezoelectric Actuator Driving

IEEE Access, 2020
In the application of piezoelectric jet dispensing, piezoelectric ceramics and flexure hinges cooperate to form a piezoelectric actuator. The dispensing quality of the piezoelectric jet is closely associated with the output force of the piezoelectric ...
Jian Chen, Guoxiang Peng, Hong Hu, Jia Ning   +3 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Slow motor neuron stimulation of locust skeletal muscle: model and measurement

, 2013
The isometric force response of the locust hind leg extensor tibia muscle to stimulation of a slow extensor tibia motor neuron is experimentally investigated, and a mathematical model describing the response presented.
Mace, Brian R., Rustighi, Emiliano, Wilson, Emma, Mace, Brian R, Newland, Philip L, Newland, Philip L., Wilson, Emma Denise   +6 more
core   +1 more source

Computational research on film cooling under rotating frame by an anisotropic turbulence model

Propulsion and Power Research, 2013
A new anisotropic k–ω turbulence model was proposed in this paper. This new model, with the standard k–ω model and the standard k–ε model was embedded in our three-dimensional (3-D) Navier–Stokes code to compute rotational film cooling.
Jianqin Zhu, Kai Wang, Chaoqun Nie
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Clinical efficacy of Ni-Ti memory alloy four-corner arthrodesis concentrator in the treatment of scaphoid nonunion advanced collapse: a follow-up of over 10 years

Journal of Plastic Surgery and Hand Surgery
Purpose: Exploring the therapeutic effects of Ni-Ti shape memory alloy four-corner arthrodesis concentrator (NT-FCAC) in treating scaphoid nonunion advanced collapse (SNAC) and providing a decade-long follow-up report.
Baochuang Qi, Minzheng Guo, Chen Meng, Teng Wang, Chuan Li, Yongqing Xu   +5 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Stability, instability, and error of the force-based quasicontinuum approximation [PDF]

, 2009
Due to their algorithmic simplicity and high accuracy, force-based model coupling techniques are popular tools in computational physics. For example, the force-based quasicontinuum (QCF) approximation is the only known pointwise consistent quasicontinuum
Luskin, Mitchell Barry, Christoph Ortner, Ortner, Christoph, Mitchell Luskin, Matthew Dobson, Dobson, Matthew   +5 more
core   +1 more source

Predicting droplet detachment force: Young-Dupré Model Fails, Young-Laplace Model Prevails

Communications Physics
Liquid droplets hanging from solid surfaces are commonplace, but their physics is complex. Examples include dew or raindrops hanging onto wires or droplets accumulating onto a cover placed over warm food or windshields.
Muhammad Subkhi Sadullah, Yinfeng Xu, Sankara Arunachalam, Himanshu Mishra   +3 more
doaj   +1 more source