Results 41 to 50 of about 4,184,881 (309)

Evolutionary design of a full–envelope flight control system for an unstable fighter aircraft [PDF]

open access: yes, 2010
The use of an evolutionary algorithm in the framework of H∞ control theory is being considered as a means for synthesizing controller gains that minimize a weighted combination of the infinite-norm of the sensitivity function (for disturbance attenuation
Edmondo A. Minisci   +4 more
core   +4 more sources

Semi phenomenological modelling of the behavior of TRIP steels [PDF]

open access: yes, 2010
The authors are grateful to ArcelorMittal R&D for supporting this research.A new semi-phenomenological model is developed based on a mean-field description of the TRIP behavior for the simulation of multiaxial loads.
M. Berveiller   +5 more
core   +1 more source

Unstable Behavior of Electrostatic Particle Deposition.

open access: yesKAGAKU KOGAKU RONBUNSHU, 2002
粒子貯留部における湿度を変更可能な実験装置を作成し,接触帯電を利用した粒子の帯電量の測定および局所荷電されたターゲットへの静電沈着実験を行った.その結果,パイプ内における平均流速や粒子貯留部の湿度により平均帯電量をある程度制御できることがわかった.沈着初期において,慣性により粒子が沈着しない部分が発生し,その効果は,印加電圧が低いほど顕著に現れることがわかった.帯電粒子は,ターゲットの後縁付近および側縁付近から沈着し始め,時間の経過とともに,ターゲットの中央付近にも沈着し始める.この結果によって,沈着した帯電粒子群による電界強度の減少が示唆された.ターゲット面への粒子の平均沈着厚さは,時間の経過とともに増加し,やがて一定値に近づくことがわかった.また,その一定値に近づくまでの時間(沈着時定数 ...
Tanoue, KI   +3 more
openaire   +1 more source

(Oscillating) non-exponential decays of unstable states [PDF]

open access: yes, 2012
We discuss deviations from the exponential decay law which occur when going beyond the BreitWigner distribution for an unstable state. In particular, we concentrate on an oscillating behavior, remisiscent of the Rabi-oscillations, in the short-time ...
Giacosa, Francesco, Pagliara, Giuseppe
core  

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Radial perturbations of charged wormholes

open access: yesPhysics Letters B
Ellis-Bronnikov wormholes suffer from an unstable radial mode. Here we investigate the evolution of the unstable mode(s) for charged wormholes. We show that the instability remains in the presence of charge, but exhibits a very fast decrease to zero.
Jose Luis Blázquez-Salcedo   +4 more
doaj   +1 more source

Late Time Behavior of Unstable Particles

open access: yesJournal of Nuclear and Particle Physics, 2012
Possible consequences of non-exponential behavior of the survival amplitude of an unstable particle at very late times are considered. We describe a new quantum phenomenon: Analyzing the transition time region between exponential and post-exponential form of the survival amplitude we find that the instantaneous energy of the considered unstable state ...
K. Urbanowski, J. Piskorski
openaire   +2 more sources

Performance of a Modified Negative Branch Unstable Resonator [PDF]

open access: yes, 2007
Far field deployment of high power chemical oxygen iodine laser (COIL) affords optimally adapted resonator architectures. Such resonators shall enable high brightness operation.
Grünewald, Karin   +4 more
core  

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

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