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Статья: МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ КРИТИЧЕСКИХ СОСТОЯНИЙ ДИСКРЕТНО НЕОДНОРОДНЫХ СОЕДИНЕНИЙ С ГРАНИЦЕЙ В ВИДЕ ДВУХЗВЕННОЙ ЛОМАНОЙ

Рассматриваются критические состояния дискретно-неоднородных соединений в условиях плоской деформации. Граница между участками разной прочности предполагается двухзвенной ломаной или содержит такой фрагмент. Исследуются особенности математических моделей таких состояний в виде полей характеристик (линий скольжения). Рассмотрены случаи полной и неполной реализации контактного упрочнения менее прочной части и контактного разупрочнения более прочной части соединения. Впервые показано, что линии разрыва напряжений могут располагаться в менее прочной части соединения, а зоны пластического течения более прочной части могут находиться внутри соединения.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Дильман Валерий
Язык(и): Русский
Доступ: Всем
Статья: AN ANALOGUE OF TURAEV COMULTIPLICATION FOR KNOTSIN NON-ORIENTABLE THICKENING OF A NON-ORIENTABLE SURFACE

This paper concerns pseudo-classical knots in the non-orientable manifold Σˆ = Σ × [0, 1], where Σ is a non-orientable surface and a knot K ⊂ Σˆ is called pseudo-classical if Kis orientation-preserving path in Σˆ. For this kind of knot we introduce an invariant ∆that is an analogue of Turaev comultiplication for knots in a thickened orientable surface. As its classical prototype, ∆ takes value in a polynomial algebra generated by homotopy classes of non-contractible loops on Σ, however, as a ground ring we use some subring of C instead of Z. Then we define a few homotopy, homology and polynomial invariants, which are consequences of ∆, including an analogue of the affine index polynomial.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Tarkaev V. V.
Язык(и): Русский
Доступ: Всем
Статья: METRICALLY ρ-ALMOST PERIODIC TYPEFUNCTIONS WITH VALUES IN LOCALLY CONVEX SPACES

We consider several new classes of metrically ρ-almost periodic type functions F: I ×X →Y, where ∅ = I ⊆ Rn, X is an arbitrary non-empty set and Y is a sequentially completelocally convex space. We briefly explain how the introduced notion can be useful in the study of qualitative analysis of solutions for some classes of the abstract Volterra integro-differential inclusions in locally convex spaces.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Kostic M.
Язык(и): Русский
Доступ: Всем
Статья: The Failure of Japanese Whale Diplomacy: A Constructivist Analysis of Changes in International Norms

This research examines the failure of Japanese whale diplomacy following the International Whaling Commission’s (IWC) moratorium on commercial whaling in 1986, with a focus on Japan’s attempts to change the conservationist view of whales to the one focused on consumption of whale meat. This article explains how Japanese whale diplomacy attempts to convince the international public that whaling is part of cultural preservation. The method used is a qualitative approach with analysis of official government documents and research related to Japanese diplomacy and whaling. The constructivism approach was used to analyze how international identities, norms, and discourses shape Japan’s diplomatic policies.

The findings show that, despite Japan’s efforts to prove that whaling is safe and sustainable, it has failed to change international norms on whale conservation. The dominant international discourse continues to regard whaling as unethical and environmentally damaging. Significant resistance from other countries that support conservation was a major obstacle.

This research reveals that the failure of Japanese diplomacy was not only due to international resistance, but also Japan’s inability to align their scientific and cultural arguments with a global narrative that prioritizes environmental ethics. The contribution of this research lies in understanding the dynamics of norms and identities in international relations and the importance of ethical narratives in environmental diplomacy.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): SURWANDONO .
Язык(и): Английский
Доступ: Всем
Статья: GENERALIZATION OF SOME INEQUALITIES RELATED TO THE LAPLACE TRANSFORM

We establish some generalizations of integral inequalities for Hardy-type operator and its conjugate via Laplace transform. Moreover, some new estimates with Laplace transform are deduced.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Azzouz N.
Язык(и): Русский
Доступ: Всем
Статья: The Narrative of the Northern Territories in the Socio-Political Discourse of Contemporary Japan

The article analyzes the Japanese official narrative about the Northern Territories, which is widespread in Japanese society as a key factor in the formation of the bad image of Russia in Japan. Of particular importance from the point of view of the emotional effect on public consciousness is the thesis that the Southern Kurils are the “ancestral territory of Japan,” that the USSR committed aggressive and unfair actions against Japan during World War II, and modern Russia did not correct them, and that the Japanese natives of the Southern Kurils experience enormous moral suffering, not having the opportunity to freely visit the graves of their ancestors. The article examines the organizational structure of state, public, and socio-political organizations designed to ensure public policy to popularize this narrative and shows the features of its reflection in school textbooks, museums, and memorial complexes. The author focuses on the Movement for the Return of the Northern Territories and the events held within its framework, including the annual “Northern Territories Day,” held on February 7.

It is concluded that, despite all the efforts of the government, Japanese public opinion in reality turns out to be relatively poorly informed about the problem of the Northern Territories. At the same time, as generations change, the interest in this problem is gradually decreasing, especially among young people. There is a process of realizing the futility of maintaining a hard line in the problem, related to visits to graves by former islanders and members of their families, causes the greatest public outcry, but even this aspect, as the results of public opinion polls show, has a limited effect. government’s approach to solving it. The humanitarian aspect of the

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Стрельцов Дмитрий
Язык(и): Английский
Доступ: Всем
Статья: QUASILINEAR EQUATIONS WITH RIEMANN - LIOUVILLE DERIVATIVES IN H¨OLDER TYPE SPACES

The issues of the unique solvability of a Cauchy type problem for a quasilinear equation in a Banach space with several minor fractional derivatives in the nonlinear part and with a linear operator generating an analytical resolving family of operators of a linear homogeneous equation are investigated. Using the Banach contraction mapping theorem, the existence and uniqueness of local and global solutions in specially constructed H¨older type spaces is proved. Abstract results are used for the study of an initial boundary value problem for a modified time-fractional order system of the phase field equations.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Авилович Анна
Язык(и): Русский
Доступ: Всем
Статья: From the Khalkhin Gol Events to the Neutrality Pact: Relations Between the USSR and Japan in the Reports of Soviet Diplomats in Tokyo (1939–1941)

In the late 1930s and early 1940s, Soviet-Japanese relations were going through difficult times. The Mongolian issue and border incidents continually worsened bilateral contacts. In a state of hostility and open confrontation, the authorities of both countries detained and rummaged fishing vessels, artificially whipped up spy mania, increased pressure on left-wing elements (Japan) and arrested those who were associated with the enemy side through scientific or other work (the USSR). Limiting himself to two events from Soviet-Japanese history of this time, the author analyzes how Soviet-Japanese relations and the atmosphere of mutual perception changed in the period between the end of the Khalkhin Gol River conflict (1939) and the signing of the Neutrality Pact (1941).

Using reports from employees of the USSR Plenipotentiary Mission in Tokyo as an example, the author examines how Japan’s attempt to begin building “new relations” with the USSR affected the position of Soviet diplomats and influenced the degree and quality of interaction between them and the Japanese.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): DEGTEV Ivan
Язык(и): Английский
Доступ: Всем
Статья: Rewarding Japanese Servicemen With Russian Awards During World War I and the Russian Civil War (1914–1922)

The period from the end of the Russo-Japanese War to the 1917 October Revolution was a time of political, economic, and cultural rapprochement between Russia and Japan. Moreover, this rapprochement was observed after the events of 1917 for several more years, since, during the Russian Civil War, Japan supported the anti-Bolshevik forces in the Far East.

The two countries entered the First World War as de facto allies; this alliance culminated in the Treaty of 1916. Its reflection in symbolic actions was also an element of this cooperation. In the years before the First World War, and, actually, during the war, hundreds of Japanese servicemen were given Russian awards. The article analyzes the composition of military personnel, what awards and for what merits were presented to the members of the Imperial House who did military service, diplomats, generals, as well as fleet admirals and naval officers, engineers, and divers.

After October 1917, Japan supported members of the White Movement and Admiral A. V. Kolchak for several more years. In addition, even more active support was provided to Ataman G. M. Semenov. For example, Japanese garrisons were stationed in Transbaikalia starting from the autumn of 1918, when he came to power there. Paradoxically, many Japanese officers and enlisted men were presented with Russian awards during the years of the Civil War, which fact is also confirmed in archival documents.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Язык(и): Английский
Доступ: Всем
Статья: СУРРОГАТНОЕ МОДЕЛИРОВАНИЕ ДЛЯ ВЫЧИСЛЕНИЯ ОЦЕНОК ОБОБЩАЮЩЕЙ СПОСОБНОСТИ ПОРОГОВЫХ РЕШАЮЩИХ ПРАВИЛ

Решается задача построения суррогатной модели для быстрого вычисления оценок переобучения семейства пороговых решающих правил. Описан процесс сбора обучающей выборки для модели, которая состоит из пар <объект, ответ>, и каждым объектом является семейство пороговых решающих правил, ответом - оценка обобщающей способности семейства. На основе имеющихся исследований оценок обобщающей способности, проведённых в рамках комбинаторной теории переобучения, сформирован перечень признаков, которые описывают объекты выборки. Рассмотрены модели различной структуры, наилучшей по результатам тестирования выбрана модель нейронной сети с точностью 2.8 %. По итогам анализа значимости признаков показано, что при построении оценок переобучения недостаточно учитывать только количество классификаторов и минимальное число ошибок классификаторов, необходимо использовать внутреннюю структуру семейства (расслоение по числу ошибок) и взаимосвязь между классификаторами (связность). Полученную модель можно использовать в задачах отбора признаков при построении деревьев решений, нейронных сетей и в алгоритмах бустинга для контроля переобучения.

Формат документа: pdf
Год публикации: 2025
Кол-во страниц: 1
Загрузил(а): Ишкина Шаура
Язык(и): Русский
Доступ: Всем