Application of Display Technologies for Lighting

Belyaev, V. V.; Nessemon, Donatien K.; Belyaev, Andrei A.

doi:10.33383/2018-062

Cited by 2 publications

(4 citation statements)

References 9 publications

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“…The dissipation of rotation energy of the disk would increase the radiation energy close to the neutron star. Although recent high resolution MHD simulations show that the stresses worked in the boundary layer oscillate around zero (Pessah & Chan 2012;Belyaev & Quataert 2017), it is under debate what boundary condition is appropriate to describe the neutron star surface. We have to perform comprehensive study around the neutron star surface with different boundary condition models to investigate the plausible boundary conditions.…”

Section: Validity Of Our Numerical Modelmentioning

confidence: 99%

Supercritical Accretion onto a Non-magnetized Neutron Star: Why is it Feasible?

Takahashi

Mineshige

Ohsuga

2018

ApJ

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To understand why supercritical accretion is feasible onto a neutron star, we carefully examine the accretion flow dynamics by 2.5-dimensional general relativistic (GR) radiation magnetohydrodynamic (RMHD) simulations, comparing the cases of accretion onto a non-magnetized neutron star (NS) and that onto a black hole (BH). Supercritical BH accretion is relatively easy, since BH can swallow excess radiation energy, so that radiation flux can be inward in its vicinity. This mechanism can never work for NS which has a solid surface. In fact, we find that the radiation force is always outward. Instead, we found significant reduction in the mass accretion rate due to strong radiation-pressure driven outflow.The radiation flux F rad is self-regulated such that the radiation force balances with the sum of gravity and centrifugal forces. Even when the radiation energy density much exceeds that expected from the Eddington luminosity E rad ≃ F rad τ /c > 10 2 L Edd /(4πr 2 c), the radiation flux is always kept below the certain value which makes it possible not to blow all the gas away from the disk. These effects make supercritical accretion feasible. We also find that a settling region, where accretion is significantly decelerated by radiation cushion, is formed around the NS surface. In the settling region, the radiation temperature and mass density roughly follow T rad ∝ r −1 and ρ ∝ r −3 , respectively. No settling region appears around the BH so that matter can be directly swallowed by the BH with supersonic speed.

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Section: Validity Of Our Numerical Modelmentioning

confidence: 99%

Supercritical Accretion onto a Non-magnetized Neutron Star: Why is it Feasible?

Takahashi

Mineshige

Ohsuga

2018

ApJ

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“…В объеме определения термина «подземное пространство» и далее по тексту СП 473 не учитывается, что в мировой градостроительной практике ГПП является также р есурсом и иных сервисов (геоэнергетика, геоматериалы, подземные воды и др.) например, по модели «Глубокий город» [1]. Представляется, что сам термин «подземное пространство» целесообразно применять в единственном числе.…”

Section: основной разделunclassified

“…Обоснования требуют и другие положения [2], касающиеся, например формирования специальной «планировочной структуры ГПП», границ территориальных зон. Касаясь последних заметим, что технология территориального («правового») зонирования» не нашла в СП 473 никакого отражения (рекомендация по видам использования подземных ОКС приведена вне данного контекста), хотя в мире она эффективно применяется для целей развития ГПП [1]. Таким образом, требования по «зонированию» необходимо разграничить и детализировать, указать, где и как они применяются при подготовке градостроительных документов и документации (прежде всего в контексте размещения соответствующих ПЗС и их комплексов).…”

Section: основной разделunclassified

“…Учтена также практика экспертной деятельности автора в составе Подкомитета 9 «Градостроительство» Технического комитета 465 «Строительство» Федерального агентства по техническому регулированию и метрологии (далее -Подкомитет 9). АНАЛИЗ ПУБЛИКАЦИЙ; МАТЕРИАЛОВ, МЕТОДОВ Результаты обзора публикаций по теме правового регулирования градостроительного развития ГПП отражены в статье автора на страницах настоящего журнала в 2018 году [1]. Они показали отсутствие проведения специальных системных отечественные исследования по данной теме при их наличии за рубежом (США, Японии, Финляндии, Китая, Малайзии, Сингапура, Греции, Франции, Казахстан и др.).…”

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National Features and Prospects for Improving State Regulation of Urban Development of Underground Space

Belyaev

2021

Construction Economic and Environmental Management

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The main features of the state regulation of the development of underground space, the shortcomings of legal regulation and standardization as the reasons for the lag of Russian cities in this area of urban development are considered. The results of the monitoring and analysis of regulatory documents in the field of integrated urban development of underground space are presented. Gaps and conflicts in a number of subject documents on standardization that do not allow for effective integral development of the underground part of the city territory are identified, and suggestions for improving standardization are given. A new Set of Rules (SP 473) concerning «underground urban planning» is analyzed in detail, and a conclusion is made about its systemic shortcomings, primarily related to the imperfection of legal regulation. The structure of applied scientific research initiated by the author of this article and aimed at introducing a set of legislative changes is disclosed. It is proposed to synchronize their introduction with ensuring the correction of SP 473 and other documents on standardization. The relevance of the topics and studies covered is not only related to their novelty, but also to the consideration of issues in the context of approaching the model of a sustainable, viable and compact city.

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Application of Display Technologies for Lighting

Cited by 2 publications

References 9 publications

Supercritical Accretion onto a Non-magnetized Neutron Star: Why is it Feasible?

Supercritical Accretion onto a Non-magnetized Neutron Star: Why is it Feasible?

National Features and Prospects for Improving State Regulation of Urban Development of Underground Space

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