single particle diffusion/ A0550 Lattice theory and statisticsIsing problems A0560 Transport processes: theoryFollowing our previous works on lattice diffusion, and on the use of the local mean field method to describe diffusion in interacting lattice gases, we show that the latter can be also ...
Large uncharged polarmolecules such as glucose An example of a membrane transport protein involved in facilitated diffusion is theGLUT-2 protein, which is the primary protein involved in the transfer of glucose from the liver into the blood. ...
The diffusion and nutrient consumption are represented using partial differential equations. This model predicts that onset of necrosis occurs when the concentrations of vital nutrients are below critical values, and also the overall tumor growth based on the size effects of the proliferation zone, ...
This work deals with the existence of solutions of a reaction-diffusion equation in the plane R-2. The problem, whose unknowns are the real c and the function u, is the following: [GRAPHICS] where 0 < alpha less than or equal to pi/2 is given, (e) over right arrow(2) = (-1,...
本文前作 VDM 已经推导出了扩散模型可以将优化 ELBO 作为目标函数。然而现在 FID (也就是感知质量)最好的模型还是用的其他目标函数(如 DDPM 的噪声预测和 Score-base Model 的得分匹配),本文证明了这些其他目标函数实际上也与 ELBO 相关。具体来说,本文证明了所有这些其他的扩散模型目标函数都可以写为 ELBO 在所...
Using tomographic image data from the particle accelerator at the European Synchrotron Radiation Facility, they showed that the model not only reproduces the correct final structure but also the growth mode of the enamel matrix. Species differentiation by diffusion Following on from the pig molars, ...
lack of charge facilitates diffusion of molecules into the nonpolar organic solvent and enhances efficiency of extraction. For the selection of an optimal extraction pH, knowledge of the pKa value of the analyte is very helpful. Cpx pKa values are 8.80 for nitrogen in the piperazinyl ring and 6....
Chaos, or exponential sensitivity to small perturbations, appears everywhere in nature. Moreover, chaos is predicted to play diverse functional roles in living systems. A method for detecting chaos from empirical measurements should therefore be a key co
We propose a new approach for proving uniqueness of semi-wavefronts in generally non-monotone monostable reaction–diffusion equations with distributed delay. This allows to solve an open problem concerning the uniqueness of non-monotone (hence, slowly oscillating) semi-wavefronts to the KPP–Fisher...
The best-characterized lipoprotein-associated PLA2 is the type VII enzyme found in plasma under normal physiological conditions. This PLA2 was initially characterized as platelet-activating factor (PAF) acetylhydrolase (PAF-AH) and is also known as human plasma LDL-PLA2 because it is associated ...