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О влиянии заряженных центров на транспорт носителей заряда в молекулярно допированных полимерах
Высокомолекулярные соединения. Серия А. 2011. Т. 52. № 7. С. 1122–1132.
The effect of charged centers on the mobility of charge carriers in molecularly doped polycarbonate is experimentally studied by the method of accelerated electrons for the generation of charge carriers in the surface layer and in the polymer bulk. The hypersensitivity of mobility toward the presence of charged sites that is predicted by the theory of correlated disorder (dipolar glass) is not found. With accumulation of charged centers, transformation of the time of flight curves with a ellpronounced plateau region, which is indicative of quasiequilibrium transport according to theory, proceeds in full agreement with the classical concepts on the role of a space charge or bimolecular recombination during high signal irradiation. Transport of charge carriers in the molecularly doped polymer is not quasiequilibrium but dispersive.
Shipilov F., Barnyakov A., Ivanov A. et al., / Series Physics "arxiv.org". 2026.
A fast simulation of the detector response is a vital task in high-energy physics (HEP). Traditional Monte-Carlo methods form the backbone of modern particle physics simulation software but are computationally expensive. We present a machine-learning-based approach to fast simulation of the Focusing Aerogel Ring Imaging Cherenkov (FARICH) detector response. Given a particle track and momentum, ...
Added: May 19, 2026
Derkacheva A., Sakirkina M., Kraev G. et al., /. 2026.
Comprehensive data on natural hazards and their consequences are crucial for effective for risk assessment, adaptation planning, and emergency response. However, many countries face challenges with fragmented, inconsistent, and inaccessible data, particularly regarding local-scale events. To address this data gap in Russia, we developed an end-to-end processing pipeline that scrapes news from various online sources, ...
Added: April 28, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Gabdullin N., Androsov I., / Series Computer Science "arxiv.org". 2026.
Label prediction in neural networks (NNs) has O(n) complexity proportional to the number of classes. This holds true for classification using fully connected layers and cosine similarity with some set of class prototypes. In this paper we show that if NN latent space (LS) geometry is known and possesses specific properties, label prediction complexity can ...
Added: April 2, 2026
Sorokin K., Beketov M., Онучин А. et al., / arxiv.org. Серия cs.SI "Social and Information Networks ". 2025.
Community detection in complex networks is a fundamental problem, open to new approaches in various scientific settings. We introduce a novel community detection method, based on Ricci flow on graphs. Our technique iteratively updates edge weights (their metric lengths) according to their (combinatorial) Foster version of Ricci curvature computed from effective resistance distance between the ...
Added: January 15, 2026
Petrovanov I., Sergeev A., / Series Computer Science "arxiv.org". 2025. No. 2512.18332.
Transport coding reduces message delay in packet-switched networks by introducing controlled redundancy at the transport layer: original packets are encoded into coded packets, and the message is reconstructed after the first successful deliveries, effectively shifting latency from the maximum packet delay to the -th order statistic. We present a concise, reproducible discrete-event implementation of transport coding in OMNeT++, including ...
Added: December 24, 2025
Hessian-based lightweight neural network for brain vessel segmentation on a minimal training dataset
Меньшиков И. А., Бернадотт А. К., Elvimov N. S., / Series arXie "Statistical mechanics". 2025.
Accurate segmentation of blood vessels in brain magnetic resonance angiography (MRA) is essential for successful surgical procedures, such as aneurysm repair or bypass surgery. Currently, annotation is primarily performed through manual segmentation or classical methods, such as the Frangi filter, which often lack sufficient accuracy. Neural networks have emerged as powerful tools for medical image ...
Added: December 1, 2025
Chernyshov D., Satanin A., Shchur L., / Series arXiv "math". 2025.
We investigate the boundary separating regular and chaotic dynamics in the generalized Chirikov map, an extension of the standard map with phase-shifted secondary kicks. Lyapunov maps were computed across the parameter space (K,K(α, τ)) and used to train a convolutional neural network (ResNet18) for binary classification of dynamical regimes. The model reproduces the known critical ...
Added: November 21, 2025
Rubchinskiy A., Chubarova D., / Series WP7 "Математические методы анализа решений в экономике, бизнесе и политике". 2025. No. WP7/2025/01.
The article examines one of the most famous examples of socio-economic systems, characterized by significant uncertainty – the S&P-500 stock market, where shares of 500 largest US companies are traded. No assumptions are made about the probabilistic characteristics of the stock market. A flexible algorithm for daily trading has been developed, based on both known fixed data ...
Added: November 9, 2025
Petrosyants K. O., Kharitonov I. A., Пугачев А. А., В кн.: Наноиндустрия. Специальный выпуск: Международный форум "Микроэлектроника-2019". 5-я Международная научная конференция "Электронная компонентная база и микроэлектронные модули"Т. 1. Вып. 96.: Рекламно-издательский центр "ТЕХНОСФЕРА", 2020. С. 291–294.
Presented TCAD-silicon betavoltaicheskogo element model for studying cell characteristics depending on its three-dimensional structure. To simulate the results of generation of electron-hole pairs when exposed to radiation from the source of beta particles used tuned optical generation model, available in TCAD.The dependence of the current-voltage characteristics of the element betavoltaicheskogo doping profile, temperature and type ...
Added: June 26, 2020
Novikov S. V., Journal of Physical Chemistry C 2019 Vol. 123 No. 31 P. 18854–18860
We consider the bimolecular charge carrier recombination in amorphous organic semiconductors having a special kind of energetic disorder where energy levels for electrons and holes at a given transport site move in the same direction with the variation of some disorder governing parameter (the parallel disorder). This particular kind of disorder could be found in ...
Added: October 24, 2019
Konov K., Nikerov V. A., В кн.: Труды XXIII Международной конференции "Радиационная физика твердого тела" (Севастополь, 8 июля - 13 июля 2013).: М.: ФГБНУ "НИИ ПМТ", 2013. С. 110–116.
В рамках модели обобщенной диффузии для веществ с зарядовым числом атомов Z от 1 до 82 рассчитан максимальный размер тонкого слоя, торможение электронов с энергией 3-100 кэВ в котором осуществляется без существенного искривления траектории. Показано, что использование формул тонких слоев для пробегов в толстых слоях дает завышенные в корень из (Z/3) значения. При этом ошибка появляется ...
Added: October 3, 2013
Транспорт и отражение от различных сред ускоренных электронов и фотонов в модели обобщенной диффузии
Nikerov V. A., Шолин Г. В., Инженерная физика 2012 № 11 С. 3–9
Последовательно сформулирована аналитическая модель обобщенной диффузии, позволившая в широком диапазоне энергий частиц и параметров среды рассчитать с точностью 10…30 % среднюю длину пробега вдоль координаты ускоренных электронов и фотонов, а также оценить распределение длин пробега и энерговклад. Рассчитаны коэффициенты объемного отражения ускоренных электронов и фотонов от различных сред методом диаграмм, причем в качестве нулевого приближения ...
Added: January 30, 2013