نتایج جستجو برای: activation entropy

تعداد نتایج: 491900  

Journal: :Macromolecules 2021

We provide a perspective on polymer glass formation, with an emphasis models in which the fluid entropy and collective particle motion dominate theoretical description data analysis. The theory of formation has its origins experimental observations relating to correlations between liquid dynamics going back nearly century ago, it entered new phase recent years. first discuss liquids high-temper...

Journal: :رادار 0
سارا قدس وهاب شجاع الدینی یاسر مقصودی

the polarimetric entropy and the alpha angle are two important parameters for analyzing polarimetric synthetic aperture radar data. they demonstrate the degree of randomness in the polarization of the received signal and scattering mechanism of scatterers respectively. recently, there has been an increasing interest in compact polarimetry due to its advantages in comparison with full polarimetr...

Journal: :Revista brasileira de anestesiologia 2004
Rogean Rodrigues Nunes Murilo Pereira de Almeida James Wallace Sleigh

BACKGROUND AND OBJECTIVES Though universally employed, clinical signs to evaluate anesthetic adequacy are not reliable. Over the past years several pieces of equipment have been devised to improve intraoperative handling of anesthetic drugs, some of them directly measuring cerebral cortical activity (hypnosis). None of them, however, has offered the possibility of directly evaluating sub-cortic...

2000
W. C. Chen Brent J. Heuser

The pressure–composition (PC) behavior of deuterium in single crystal Pd has been measured over a temperature range extending from room temperature to 393 K. These data allow the determination of (i) relative partial molar enthalpy and entropy, without the contribution of the configuration entropy, for the dilute solid solution phase, (ii) enthalpy and entropy change characterizing the a→a9 pha...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2000
J Villa M Strajbl T M Glennon Y Y Sham Z T Chu A Warshel

The idea that enzymes accelerate their reactions by entropic effects has played a major role in many prominent proposals about the origin of enzyme catalysis. This idea implies that the binding to an enzyme active site freezes the motion of the reacting fragments and eliminates their entropic contributions, (delta S(cat)(double dagger))', to the activation energy. It is also implied that the bi...

ژورنال: اقتصاد مقداری 2015

An economic system is comprised of different primary flows that can be captured in macroeconomic models with complex network relations. Theoretically and empirically in this system, weak substitution or complementarity of environmental materials, like energy and other production factors such as capital, is undeniable. This is an effective critique on neoclassical economics. In this paper, we vi...

Introduction and Aims: Alzheimer’s disease is the most prevalent neurodegenerative disorder and a type of dementia. 80% of dementia in older adults is because of Alzheimer’s disease. According to multiple research articles, Alzheimer's has several changes in EEG signals such as slowing of rhythms, reduction in complexity and reduction in functional associations, and disordered functional commun...

2014
Zhen Huang Jinyu Li Chao Weng Chin-Hui Lee

We propose two approaches for improving the objective function for the deep neural network (DNN) frame-level training in large vocabulary continuous speech recognition (LVCSR). The DNNs used in LVCSR are often constructed with an output layer with softmax activation and the cross-entropy objective function is always employed in the frame-leveling training of DNNs. The pairing of softmax activat...

2013
Barry M Seemungal Jessica Guzman-Lopez Qadeer Arshad Simon R Schultz Vincent Walsh Nada Yousif

Head movement imposes the additional burdens on the visual system of maintaining visual acuity and determining the origin of retinal image motion (i.e., self-motion vs. object-motion). Although maintaining visual acuity during self-motion is effected by minimizing retinal slip via the brainstem vestibular-ocular reflex, higher order visuovestibular mechanisms also contribute. Disambiguating sel...

Journal: :Neurocomputing 2021

Weakly Supervised Object Localization is challenging due to the lack of bounding box annotations. Previous works tend generate a Class Activation Map (CAM) localize object. However, CAM highlights only most discirminative part object and does not highlight whole To address this problem, we propose an Entropy Guided Adversarial model (EGA model) perform better localization objects. EGA uses adve...

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