Results 101 to 110 of about 2,195,899 (341)

Effect of Ion Beam Balancing on Frequency Split for Fourth Harmonic Mass Defect of Hemispherical Resonator

open access: yesSensors
Based on the energy equation of the hemispherical resonator, this study analyzes the influence of ion beam balancing on the frequency split of the hemispherical resonator.
Boran Li, Changhong Wang, Zhen Fang
doaj   +1 more source

Existence of Frequency Modes Coupling Seismic Waves and Vibrating Tall Buildings [PDF]

open access: yes, 2014
We prove in this paper an existence result for frequency modes coupling seismic waves and vibrating tall buildings. The derivation from physical principles of a set of equations modeling this phenomenon was done in previous studies.
Volkov, Darko, Zheltukhin, Sergey
core  

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

皮带驱动机构的强非线性振动研究

open access: yesJixie chuandong, 2014
Based on Lagrange equation,the vibration equation of the belt drive mechanism with strongly nonlinear is established.By means of the method of L-P,the primary resonance of the belt drive mechanism system with strongly nonlinear is analyzed.The amplitude ...
李高峰
doaj  

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

A new principle technic for the transformation from frequency domain to time domain

open access: yesAIP Advances, 2017
A principle technic for the transformation from frequency domain to time domain is presented. Firstly, a special type of frequency domain transcendental equation is obtained for an expected frequency domain parameter which is a rational or irrational ...
Ben-Qing Gao
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Lamb Waves-Based Computation of Impact Echo Thickness Resonant Frequency: Theory Development and Case Study

open access: yesAdvances in Civil Engineering
The traditional equation of impact echo (IE) thickness resonant frequency upon P-wave reflections is developed based on P-wave velocity and thickness of the plate and a geometric correction factor.
Yujin Wang   +8 more
doaj   +1 more source

Numerical solution of Rayleigh-Lamb frequency equation for real, imaginary and complex wavenumbers

open access: yesMATEC Web of Conferences, 2018
Guided waves, especially Lamb waves or shear-horizontal waves, are widely used types of waves for ultrasonic inspection of large structures. Well known property of guided waves is their dispersive character, which means that the propagation velocity of ...
Šofer Michal   +2 more
doaj   +1 more source

Vector Potential Electromagnetic Theory with Generalized Gauge for Inhomogeneous Anisotropic Media [PDF]

open access: yes, 2014
Vector and scalar potential formulation is valid from quantum theory to classical electromagnetics. The rapid development in quantum optics calls for electromagnetic solutions that straddle quantum physics as well as classical physics.
Chew, Weng Cho
core  

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