Results 51 to 60 of about 77,946 (307)

Balancing Machine Using Dynamic Vibration Absorber. Measurement with an Undamped Dynamic Vibration Absorber.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1995
A new type of balancing machine is proposed which uses a dynamic vibration absorber as a device measuring unbalance. When an unbalanced rotor rotates, centrifugal forces are generated which result in sinusoidal forces being transmitted to the supporting structure.
Takeshi Mizuno, Kazuya Kitajima, Kenji Araki   +2 more
openaire   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Brock's approaching zero method improved as approaching fixed point frequency to solve optimum damping ratio of dynamic vibration absorber in machine tools and experimental confirmation.

PLoS ONE
The design parameters of the dynamic vibration absorber significantly affect the motion performance of the main vibration system. The Brock's approaching zero method was improved as approaching the fixed point frequency method.
Hongliang Tian, Xixiao Liang, Xuan Du
doaj   +1 more source

Behavior of Magnetic Dynamic Absorber

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1982
In order to reduce the amplitude of a vibrating system excited by an external force, a magnetic dynamic absorber can be utilized. The system with the magnetic dynamic absorber has non-linear characteristics. Generally for the non-linear system there exist two steady solutions which are locally stable in a certain interval of the excited frequency ...
Junkichi INOUE, Yukitaka KURAKAKE
openaire   +3 more sources

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

Operating mechanism and optimization of dynamic absorber for a parametric excitation system

Nihon Kikai Gakkai ronbunshu, 2015
The effectiveness of a dynamic absorber for self-excited vibration, such as parametric resonance, has been known for several years. However, in the case of self-excited vibration, the operating mechanism of a dynamic absorber is still poorly understood ...
Tomoyuki TANIGUCHI, Takahiro KONDOU
doaj   +1 more source

Metallic tube type energy absorbers: a synopsis [PDF]

, 2007
This paper presents an overview of energy absorbers in the form of tubes in which the material used is predominantly mild steel and/or aluminium. A brief summary is also made of frusta type energy absorbers.
A.G. Olabi, Avalle, Calladine, Colokoglu, DeRuntz, Edmund Morris, Ezra, Ghosh, Guillow, Gupta, Gupta, Gupta, Harrigan, Hsu, Huang, Huang, Hui, Jiang, Jing, Johnson, Johnson, Johnson, Johnson, Jones, Kardaras, Kinkead, Langseth, Leu, Liu, Lu, Lu, Lu, M.S.J. Hashmi, Miscow, Morris, Morris, Morris, Nagel, Nagel, Nagel, Reddy, Reddy, Reddy, Reddy, Reddy, Redwood, Reid, Reid, Reid, Reid, Reid, Reid, Reid, Reid, Rossi, Sherbourne, Shim, Shrive, Silva-Gomes, Sowerby, Stronge, Su, Su, Tam, Thomas, Thomas, Thomas, Uddin, Wang, Wasiowych, Webb, Whitworth, Wierzbicki, Wu, Wu, Wu, Zeinoddini, Zhang, Zhao, Zhao, Zukas   +80 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source