73 research outputs found
ΠΡΠΎΠ±Π»Π΅ΠΌΡ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΈ ΠΎΡΠ²ΠΎΠ΅Π½ΠΈΡ Π½Π΅Π΄Ρ. Π’. 2
Π ΡΠ±ΠΎΡΠ½ΠΈΠΊΠ΅ ΠΎΡΡΠ°ΠΆΠ΅Π½Ρ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ ΠΏΠ°Π»Π΅ΠΎΠ½ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΡΡΡΠ°ΡΠΈΠ³ΡΠ°ΡΠΈΠΈ, ΡΠ΅ΠΊΡΠΎΠ½ΠΈΠΊΠΈ, ΠΈΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈ ΡΠ΅Π³ΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΎΠ³ΠΈΠΈ, Π³Π΅ΠΎΡ
ΠΈΠΌΠΈΠΈ, ΠΏΠ΅ΡΡΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π»ΠΈΡΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΠΏΠΎΠ»Π΅Π·Π½ΡΡ
ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΡΡ
, ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ³Π΅Π½ΠΈΠΈ, Π³ΠΈΠ΄ΡΠΎΠ³Π΅ΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π³ΠΈΠ΄ΡΠΎΠ³Π΅ΠΎΡ
ΠΈΠΌΠΈΠΈ, ΠΈΠ½ΠΆΠ΅Π½Π΅ΡΠ½ΠΎΠΉ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π³Π΅ΠΎΡΠΈΠ·ΠΈΠΊΠΈ, Π½Π΅ΡΡΡΠ½ΠΎΠΉ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π³Π΅ΠΎΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ Π² Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ Π½Π΅ΡΡΡΠ½ΡΡ
ΠΈ Π³Π°Π·ΠΎΠ²ΡΡ
ΠΌΠ΅ΡΡΠΎΡΠΎΠΆΠ΄Π΅Π½ΠΈΠΉ, ΠΏΠ΅ΡΠ΅ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈ ΠΌΠΈΠ½Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ, Π½Π΅ΡΡΠ΅Π³Π°Π·ΠΎΠΏΡΠΎΠΌΡΡΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΡ, Π±ΡΡΠ΅Π½ΠΈΡ Π½Π΅ΡΡΡΠ½ΡΡ
ΠΈ Π³Π°Π·ΠΎΠ²ΡΡ
ΡΠΊΠ²Π°ΠΆΠΈΠ½, ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ ΠΈ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΡΠ°Π·Π²Π΅Π΄ΠΊΠΈ ΠΈ Π΄ΠΎΠ±ΡΡΠΈ, ΡΡΠ°Π½ΡΠΏΠΎΡΡΠ° ΠΈ Ρ
ΡΠ°Π½Π΅Π½ΠΈΡ Π½Π΅ΡΡΠΈ ΠΈ Π³Π°Π·Π°, Π³ΠΎΡΠ½ΠΎΠ³ΠΎ Π΄Π΅Π»Π°, ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΈ ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ ΡΠ°Π·Π²Π΅Π΄ΠΊΠΈ ΠΌΠ΅ΡΡΠΎΡΠΎΠΆΠ΄Π΅Π½ΠΈΠΉ ΠΏΠΎΠ»Π΅Π·Π½ΡΡ
ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΡΡ
, Π³Π΅ΠΎΡΠΊΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π³ΠΈΠ΄ΡΠΎΠ³Π΅ΠΎΡΠΊΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΠΎΡ
ΡΠ°Π½Ρ ΠΈ ΠΈΠ½ΠΆΠ΅Π½Π΅ΡΠ½ΠΎΠΉ Π·Π°ΡΠΈΡΡ ΠΎΠΊΡΡΠΆΠ°ΡΡΠ΅ΠΉ ΡΡΠ΅Π΄Ρ, ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠ³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΌΠΈΠ½Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ, Π·Π΅ΠΌΠ»Π΅ΡΡΡΡΠΎΠΉΡΡΠ²Π°, ΡΠΊΠΎΠ½ΠΎΠΌΠΈΠΊΠΈ ΠΌΠΈΠ½Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ ΠΈ Π³ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠ°Π²Π°
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Ahmet Mithat'Δ±n TercΓΌman-Δ± Hakikat'te tefrika edilen Demir Bey Yahut Δ°nkΔ±Εaf-Δ± Esrar adlΔ± roman
Achieving Superelasticity in Additively Manufactured NiTi in Compression Without Post-Process Heat Treatment
Shape memory alloys (SMAs), such as Nitinol (i.e., NiTi), are of great importance in biomedical and engineering applications due to their unique superelasticity and shape memory properties. In recent years, additive manufacturing (AM) processes have been used to produce complex NiTi components, which provide the ability to tailor microstructure and thus the critical properties of the alloys, such as the superelastic behavior and transformation temperatures (TTs), by selection of processing parameters. In biomedical applications, superelasticity in implants play a critical role since it gives the implants bone-like behavior. In this study, a methodology of improving superelasticity in Ni-rich NiTi components without the need for any kind of post-process heat treatments will be revealed. It will be shown that superelasticity with 5.62% strain recovery and 98% recovery ratio can be observed in Ni-rich NiTi after the sample is processed with 250βW laser power, 1250βmm/s scanning speed, and 80βΒ΅m hatch spacing without, any post-process heat treatments. This superelasticity in as-fabricated Ni-rich SLM NiTi was not previously possible in the absence of post-process heat treatments. The findings of this study promise the fast, reliable and inexpensive fabrication of complex shaped superelastic NiTi components for many envisioned applications such as patient-specific biomedical implants
ΠΠ½Π°Π»ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ Π³ΠΎΠ΄ΠΎΠ²ΠΎΠΉ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΎΡΡΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΡ
ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ ΡΠ΅ΠΌΡ ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½Π° Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΡΡ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³Π° ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΎΡΡΠ΅ΡΠ½ΠΎΡΡΠΈ Ρ ΡΠ΅Π»ΡΡ ΠΊΠΎΠΎΡΠ΄ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ.
ΠΠ±ΡΠ΅ΠΊΡΠΎΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π² Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΠΠ "Π Π‘Π’".
ΠΡΠ΅Π΄ΠΌΠ΅Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π°Π½Π°Π»ΠΈΠ· ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΎΡΡΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΠΠ "Π Π‘Π’".
Π¦Π΅Π»Ρ Π²ΡΠΏΡΡΠΊΠ½ΠΎΠΉ ΠΊΠ²Π°Π»ΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ β Π°Π½Π°Π»ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ Π³ΠΎΠ΄ΠΎΠ²ΠΎΠΉ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΎΡΡΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΠΠ "Π Π‘Π’" ΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠΉ ΡΠΎΠ²Π΅ΡΡΠ΅Π½ΡΡΠ²ΠΎΠ²Π°Π½ΠΈΡ Π²Π½ΡΡΡΠ΅Π½Π½Π΅ΠΉ ΠΈ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ.The relevance of the topic is due to the need for constant monitoring of financial reporting indicators in order to coordinate the company's activities.
The object of research in this paper is LLC "RST".
The subject of the study is the analysis of the financial statements of LLC "RST".
The purpose of the final qualification work is to analyze the main indicators of the annual financial statements of LLC "RST" and identify areas for improving domestic and foreign policy
Mathematical concepts for the micromechanical modelling of dislocation dynamics with a phase-field approach
International audienceThis contribution reviews mathematical concepts of micro-mechanical modeling in the phase-field approach applied to dislocation dynamics. The intention is twofold: On the one hand, modelling of dislocation dynamics is a very recent field of development in phase-field theory, in comparison to the simulation of diffusional phase transformation and related micro-structure evolution problems in materials science. The reason is that modelling dislocation dynamics poses several challenges for phase-field concepts which go beyond purely diffusional problems in materials science as, e.g., dendritic solidification, as we point out in Sect.3. On the other hand, the modelling of dislocations has triggered further wide-ranging developments of phase-field based models for deformation problems. This is an important development, since a comprehensive model for deformation problems should include displacive as well as diffusional degrees of freedom from the atomic scale to the microscale. This is something phase-field theory is capable of, as dicussed in this review article. We aim to give an overview on relevant mathematical concepts, and to stimulate further steps in this direction
Scrub typhus ecology: a systematic review of Orientia in vectors and hosts
Abstract
Scrub typhus, caused by Orientia tsutsugamushi, is an important and neglected vector-borne zoonotic disease with an expanding known distribution. The ecology of the disease is complex and poorly understood, impairing discussion of public health interventions. To highlight what we know and the themes of our ignorance, we conducted a systematic review of all studies investigating the pathogen in vectors and non-human hosts. A total of 276 articles in 7 languages were included, with 793 study sites across 30 countries. There was no time restriction for article inclusion, with the oldest published in 1924. Seventy-six potential vector species and 234 vertebrate host species were tested, accounting for over one million trombiculid mites (βchiggersβ) and 83,000 vertebrates. The proportion of O. tsutsugamushi positivity was recorded for different categories of laboratory test and host species. Vector and host collection sites were geocoded and mapped. Ecological data associated with these sites were summarised. A further 145 articles encompassing general themes of scrub typhus ecology were reviewed. These topics range from the life-cycle to transmission, habitats, seasonality and human risks. Important gaps in our understanding are highlighted together with possible tools to begin to unravel these. Many of the data reported are highly variable and inconsistent and minimum data reporting standards are proposed. With more recent reports of human Orientia sp. infection in the Middle East and South America and enormous advances in research technology over recent decades, this comprehensive review provides a detailed summary of work investigating this pathogen in vectors and non-human hosts and updates current understanding of the complex ecology of scrub typhus. A better understanding of scrub typhus ecology has important relevance to ongoing research into improving diagnostics, developing vaccines and identifying useful public health interventions to reduce the burden of the disease.</jats:p
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