Portrayal of Complex Dynamic Properties of Sugarcane Defensin 5 by NMR: Multiple Motions Associated with Membrane Interaction

Abstract Important factors of potential use for manipulating static and dynamic stiffness and the damping characteristics of compounds based on styrene-butadiene and polybutadiene elastomers and their blends have been outlined. Their characteristics have been compared with those of IIR and EPDM compounds. The effects of variations in composition are quantitatively defined to assist the compounder in combining these effects in a manner that will lead to a desired combination of properties. In addition to the expected increase in static spring rate and dynamic spring rate with carbon black level, the following responses to compositional variations were found important: 1. The complex dynamic spring rate is more sharply dependent upon carbon black level than the static spring rate. 2. The complex dynamic spring rate is essentially independent of the level of crosslinking while static spring rate increases. 3. Damping coefficient is directly proportional to the level of carbon black and inversely proportional to the level of crosslinking. 4. Styrene level in a polymer blend and plasticizer composition can be used to adjust loss modulus and storage modulus at a given temperature and also to modify the rate of change of these properties with temperature. 5. The strain dependency of storage modulus was found in one instance to vary with the elastomer composition. The IIR vulcanizate, when formulated to the same static modulus, exhibited a larger strain dependence than the SBR, BR, and EPDM composition.

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Complex dynamic properties of Cournot duopoly games with convex and log-concave demand function

Operations Research Letters ◽

10.1016/j.orl.2013.12.006 ◽

2014 ◽

Vol 42 (1) ◽

pp. 85-90 ◽

Cited By ~ 40

Author(s):

S.S. Askar

Keyword(s):

Demand Function ◽

Dynamic Properties ◽

Cournot Duopoly ◽

Complex Dynamic

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Complex Dynamics Analysis for a Cournot-Bertrand Mixed Game Model with Delayed Bounded Rationality

Abstract and Applied Analysis ◽

10.1155/2013/251702 ◽

2013 ◽

Vol 2013 ◽

pp. 1-11 ◽

Cited By ~ 5

Author(s):

Junhai Ma ◽

Hongwu Wang

Keyword(s):

Mixed Model ◽

Historical Data ◽

Complex Dynamics ◽

Dynamic Properties ◽

Stable Region ◽

Mixed Duopoly ◽

Game Model ◽

Complex Dynamic ◽

Delayed System ◽

Route To Chaos

A Cournot-Bertrand mixed duopoly game model is constructed. The existence and local stable region of the Nash equilibria point are investigated. Complex dynamic properties such as bifurcation and route to chaos are analyzed using parameter basin plots. The strange attractors are also studied when the system is in chaotic states. Furthermore, considering the memory of the market, a delayed Cournot-Bertrand mixed model is considered and the results show that the delayed system has the same Nash equilibrium and has a higher chance of reaching steady states or cycles than the model without delay. So making full use of the historical data can improve the system’s stability.

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A New Chaotic Jerk System with Three Nonlinearities and Synchronization via Adaptive Backstepping Control

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.15378 ◽

2018 ◽

Vol 7 (3) ◽

pp. 1936 ◽

Cited By ~ 5

Author(s):

Sundarapandian Vaidyanathan ◽

Sifeu Takougang Kingni ◽

Aceng Sambas ◽

Mohamad Afendee Mohamed ◽

Mustafa Mamat

Keyword(s):

Chaos Synchronization ◽

Simple Structure ◽

Dynamic Properties ◽

Backstepping Control ◽

Equilibrium Analysis ◽

Phase Portraits ◽

Adaptive Backstepping ◽

Complex Dynamic ◽

Adaptive Backstepping Control ◽

Jerk System

Jerk systems are popular in mechanical engineering and chaotic jerk systems are used in many applications as they have simple structure and complex dynamic properties. In this work, we report a new chaotic jerk system with three nonlinear terms. Dynamical properties of the chaotic jerk system are analyzed through equilibrium analysis, dissipativity, phase portraits and Lyapunov chaos exponents. We show that the new chaotic jerk system has a unique saddle-focus equilibrium at the origin. Thus, the new chaotic jerk system has a self-excited strange attractor. Next, global chaos synchronization of a pair of new chaotic jerk systems is successfully achieved via adaptive backstepping control.

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INVESTIGATION OF DYNAMIC STRESSES OF TAIL BEAM OF AN MI-8 HELICOPTER/SRAIGTASPARNIO MI-8 GALINĖS SIJOS DINAMINIŲ ĮTEMPIMŲ TYRIMAS

Aviation ◽

10.3846/1648-7788.2008.12.118-123 ◽

2008 ◽

Vol 12 (4) ◽

pp. 118-123

Author(s):

Vitalijs Pavelko ◽

Eric Ozolinsh ◽

Ilmars Ozolinsh ◽

Sergey Kuznetsov

Keyword(s):

Experimental Data ◽

Experimental Research ◽

Preliminary Analysis ◽

Elastic System ◽

Dynamic Testing ◽

Dynamic Properties ◽

Complex Dynamic ◽

Dynamic Stresses ◽

External Constraints ◽

Good Coincidence

Results of theoretical and experimental research of stresses in the skin of a tail beam of an Mi‐8 helicopter at resonant dynamic loading are discussed in this paper. It is shown that resonant tests of the object with an appropriate choice of configuration of internal and external constraints are one of the most effective and economical ways to achieve the necessary result. It is also obvious that the choice of a configuration for the complex dynamic system should be solved on the basis of a careful preliminary analysis of expected dynamic properties. First of all, the research that was performed shows the very significant effect of the elasticity of internal and external constraints on the dynamic properties of real aircraft components at full‐scale dynamic testing. On other hand, it is shown that the correct modelling of a complex elastic system and its constraints allows one to adequately describe the dynamic properties of the real structure and to obtain good coincidence with experimental data. Santrauka Straipsnio tikslas – ištirti ribinių sąlygų įtaką nominaliems įtempimams atskirose plonasienės sijos vietose ir parinkti racionalų dinaminės apkrovos režimą planuojant realų eksperimentą. Nominalūs įtempimai įvertinti pagal sijos dinaminių charakteristikų analizės rezultatus koncentruotų masių metodu. Buvo modeliuojamos neklasikinės ribinės sąlygos, kurios tiksliau apibūdina realius sijos ryšius. Įvertinant sijos įtvirtinimo elastingumą ir vidinių ryšių elastingumą galima gauti tikslesnes laisvųjų svyravimų pirmųjų dviejų dažnių reikšmes, kurios gerai sutampa su bandymų rezultatais. Kaip rodo analizė, vidinių ir išorinių ryšių elastingumas turi didelę įtaką sijos dinaminėms charakteristikoms, tarp jų ir laisvųjų svyravimų formai ir dažniui.

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Passive Multi-Layer Composite Damper of Flat Belt Tensioner Idler

Applied Sciences ◽

10.3390/app11073267 ◽

2021 ◽

Vol 11 (7) ◽

pp. 3267

Author(s):

Zuzana Murčinková ◽

Jozef Živčák ◽

Jozef Zajac ◽

Pavel Adamčík

Keyword(s):

Dynamic Properties ◽

Testing Machine ◽

Roller Bearing ◽

Dynamic Effects ◽

Complex Dynamic ◽

System A ◽

At Resonance ◽

Layer Composite ◽

Passive Dampers ◽

Amplitude And Frequency Modulation

In this study, the effect of multi-layer composite passive dampers on the dynamic properties of a mechanical system (a testing machine tool bench) was tested. Passive dampers are characterized by a layered structure, with each layer consisting of a specific structure of different materials, preferably foam polymers. The dynamic excitation is caused by a flat belt driving the rotor roller bearing by direct contact of the flat belt and bearing pin at a frequency of 1170–2170 Hz. The dynamic effects of the flat belt directly affect the complex dynamic effects inside rotor bearing, mainly torsional vibrations. A significant modification in the amplitude and frequency modulation and other evaluated dynamic parameters was obtained. By implementing passive dampers and modifying the mass and material damping, a decrease in amplitude at resonance of almost 30% was achieved.

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The distribution of antigen on the surface of RBL-2H3 rat basophilic leukemia cells observed by back-scattered electron imaging

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100142992 ◽

1986 ◽

Vol 44 ◽

pp. 274-275

Author(s):

R.F. Stump ◽

J.R. Pfeiffer ◽

JC. Seagrave ◽

D. Huskisson ◽

J.M. Oliver

Keyword(s):

Cell Surface ◽

Dynamic Properties ◽

Leukemia Cells ◽

Antigen Binding ◽

Scattered Electron ◽

Ige Receptor ◽

Receptor Complexes ◽

Rat Basophilic Leukemia Cells ◽

Electron Imaging ◽

Basophilic Leukemia

In RBL-2H3 rat basophilic leukemia cells, antigen binding to cell surface IgE-receptor complexes stimulates the release of inflammatory mediators and initiates a series of membrane and cytoskeletal events including a transformation of the cell surface from a microvillous to a lamellar topography. It is likely that dynamic properties of the IgE receptor contribute to the activation of these responses. Fewtrell and Metzger have established that limited crosslinking of IgE-receptor complexes is essential to trigger secretion. In addition, Baird and colleagues have reported that antigen binding causes a rapid immobilization of IgE-receptor complexes, and we have demonstrated an apparent increase with time in the affinity of IgE-receptor complexes for antigen.

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Nucleosome dynamics

Biochemical Society Symposium ◽

10.1042/bss0730109 ◽

2006 ◽

Vol 73 ◽

pp. 109-119 ◽

Cited By ~ 2

Author(s):

Chris Stockdale ◽

Michael Bruno ◽

Helder Ferreira ◽

Elisa Garcia-Wilson ◽

Nicola Wiechens ◽

...

Keyword(s):

High Resolution ◽

Chromatin Structure ◽

Current Knowledge ◽

Dynamic Properties ◽

Structure And Dynamics ◽

Nucleosome Dynamics ◽

Sharp Focus ◽

Recent Advances ◽

Insight Into ◽

Chromatin Structure And Dynamics

In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent advances in the understanding of chromatin structure and dynamics are highlighted. The ways in which different modes of nucleosome reconfiguration are likely to influence each other are discussed, and some of the factors likely to regulate the dynamic properties of nucleosomes are considered.

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