نتایج جستجو برای: geometric response

تعداد نتایج: 1062728  

Journal: :Frontiers in Ecology and Evolution 2021

The assessment of relative model performance using information criteria like AIC and BIC has become routine among functional-response studies, reflecting trends in the broader ecological literature. Such allow comparison across diverse models because they penalize each model's fit by its parametric complexity—in terms their number free parameters—which allows simpler to outperform similarly fit...

Journal: :Physical Review Letters 2021

We study the geometric response of three-dimensional non-Hermitian crystalline systems with nontrivial point-gap topology. For fourfold rotation symmetry, we show that in presence disclination lines a total Frank angle which is an integer multiple $2\pi$, there can be one-dimensional topology along direction lines. This results disclination-induced skin effects. By doubling Hamiltonian to Hermi...

Journal: :E3S web of conferences 2021

As the size of wind turbine blades increases, influence geometric nonlinearity on aerodynamic, structural and design becomes more serious. In this work, efficient aero-elastic calculation large flexible is studied. order to solve problem aeroelastic caculation blades, work applied geometrically exact beam theory based Legendre spectral finite element coupled with blade momentum establish analys...

1997
Alonzo Kelly Anthony Stentz

For autonomously navigating vehicles, the automatic generation of dense geometric models of the environment is a computation-ally expensive process. Using first principles, it is possible to quantify the relationship between the raw throughput required of the perception system and the maximum safely achievable speed of the vehicle. We show that terrain mapping perception is of polynomial comple...

Journal: :Medical physics 2005
S Vedam A Docef M Fix M Murphy P Keall

The synchronization of dynamic multileaf collimator (DMLC) response with respiratory motion is critical to ensure the accuracy of DMLC-based four dimensional (4D) radiation delivery. In practice, however, a finite time delay (response time) between the acquisition of tumor position and multileaf collimator response necessitates predictive models of respiratory tumor motion to synchronize radiat...

1997
Alonzo Kelly Anthony Stentz

The automatic generation of dense geometric models for autonomously navigating vehicles is a computationally expensive process. Using first principles, it is possible to quantify the relationship between the raw throughput required of the perception system and the maximum safely achievable speed of the vehicle. We show that terrain mapping perception is of polynomial complexity in the response ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

Alireza Emami-Ardekani Alireza Mardanshahi, Faraz Kalantari, Mahmoud Bagheri Mohammad Sobhan Ardekani Nasim Namiranian Reza Nafisi-Moghadam Seid Kazem Razavi-Ratki, Seyed Hossein Razavi,

Introduction:In an ideal parallel-hole collimator, thickness of septal material should be sufficient to stop more than 95% of incident photons. However, some photons pass the septa without interaction or experience scattering before they reach the detector. In this study, we determined different contribution of collimator responses consist of geometrical response, septal penetr...

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