Results 51 to 60 of about 227,622 (307)

Nonlinear dynamics of a flexible portal frame under support excitation [PDF]

AIP Conference Proceedings, 2012
This paper presents a nonlinear dynamic analysis of a flexible portal frame subjected to support excitation, which is provided by an electro-dynamical shaker. The problem is reduced to a mathematical model of four degrees of freedom and the equations of motion are derived via Lagrangian formulation.
Aline Souza de Paula, José Manoel Balthazar, Jorge Luis Palacios Felix   +2 more
openaire   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Dynamics Characteristic Analysis of Sliding Bearing-rigid Rotor System with Flexible Support

Jixie chuandong, 2021
Considering the influence of nonlinear factors such as oil film force support of sliding bearing and external excitation of flexible support， a rigid rotor model with flexible supports at both ends is established.
Wenbin Wang
doaj  

Experimental Study on Streamwise Vortex-Induced Vibration of a Flexible, Slender Cylinder

Applied Sciences, 2018
Laboratory tests on streamwise vortex-induced vibration (VIV) of a flexible, slender cylinder were carried out in a towing tank. A cylinder model, 20 mm in diameter and 3.91 m in length, was towed horizontally to generate a uniform profile of relative ...
Wanhai Xu, Wenqi Qin, Xifeng Gao
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Forced vibration of a sheet under periodic aerodynamic excitation

Nihon Kikai Gakkai ronbunshu, 2020
This paper describes vibration characteristics of a cantilevered flexible sheet under the periodic aerodynamic excitation. In the experiment, movable plates(exciter) are set at the upstream side from the sheet in a wind-tunnel.
Keiichi HIROAKI, Daiki KATOU, Masahiro WATANABE   +2 more
doaj   +1 more source

Therapeutic strategies for MMAE‐resistant bladder cancer through DPP4 inhibition

Molecular Oncology, EarlyView.
We established monomethyl auristatin E (MMAE)‐resistant bladder cancer (BC) cell lines by exposure to progressively increasing concentrations of MMAE in vitro. RNA sequencing showed DPP4 expression was increased in MMAE‐resistant BC cells. Both si‐DPP4 and the DPP4 inhibitor sitagliptin suppressed the viability of MMAE‐resistant BC cells.
Gang Li, Shuichi Tatarano, Hirofumi Yoshino, Saeki Saito, Mitsuhiko Tominaga, Junya Arima, Ikumi Fukuda, Takashi Sakaguchi, Ryosuke Matsushita, Yasutoshi Yamada, Hideki Enokida   +10 more
wiley   +1 more source

Excitation System Technologies for Wound-Field Synchronous Machines: Survey of Solutions and Evolving Trends

IEEE Access, 2019
WFSM are included in the majority of large power generating units and special high-power motor drives, due to their high efficiency, flexible field excitation and intrinsic flux weakening capability.
Jonas Kristiansen Noland, Stefano Nuzzo, Alberto Tessarolo, Erick Fernando Alves   +3 more
doaj   +1 more source

Multi-Excitons in Flexible Rydberg Aggregates

, 2018
Flexible Rydberg aggregates, assemblies of few Rydberg atoms coherently sharing electronic excitations while undergoing directed atomic motion, show great promise as quantum simulation platform for nuclear motional dynamics in molecules or quantum energy
Abumwis, Ghassan, Wüster, Sebastian
core   +2 more sources

Influence of equipment excitation on flexible carbody vibration of EMU [PDF]

Journal of Modern Transportation, 2014
To study the vibration transmission characteristics of a flexible carbody and its suspended equipment, a vertical mathematical model of high-speed electric multiple unit was established with equipment excitation considered. And the dynamic unbalance and impact turbulence excitation from equipment were taken into account in a single-stage and two-stage ...
Shi, Huailong, Luo, Ren, Wu, Pingbo, Zeng, Jing, Guo, Jinying   +4 more
openaire   +1 more source