38 research outputs found

    Анализ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков

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    ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ - Π²Ρ‹Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΠΉ ΠΏΠΎ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡŽ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков Π² ΠΊΠΎΠ½ΠΊΡ€Π΅Ρ‚Π½ΠΎΠΉ Π·Π°Π΄Π°Ρ‡Π΅. ΠžΠ±ΡŠΠ΅ΠΊΡ‚ исслСдования - ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ ΠΈ комплСксы вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков. ΠŸΡ€Π΅Π΄ΠΌΠ΅Ρ‚ исслСдования – систСматизация ΠΈ ΠΎΠ±ΠΎΠ±Ρ‰Π΅Π½ΠΈΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков. ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ - отсутствиС простой для Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ виброиспытаний. Π’ процСссС Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π±Ρ‹Π»ΠΈ рассмотрСны Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков, сдСланы прСдлоТСния ΠΏΠΎ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡŽ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков Π² ΠΊΠ°ΠΆΠ΄ΠΎΠΉ ΠΊΠΎΠ½ΠΊΡ€Π΅Ρ‚Π½ΠΎΠΉ Π·Π°Π΄Π°Ρ‡Π΅, создана ΡƒΠ½ΠΈΠ²Π΅Ρ€ΡΠ°Π»ΡŒΠ½Π°Ρ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠ° провСдСния вибродиагностики ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΡ€Π΅ΠΆΡƒΡ‰ΠΈΡ… станков диагностичСским комплСксом "ВиброрСгистратор-М2".The aim of the work is to develop recommendations on the application of vibration diagnostics methods for metal-cutting machine tools in a specific task. The object of research is methods and complexes of vibration diagnostics of metal cutting machines. The subject of the study is the systematization and generalization of methods of vibration diagnostics of metal-cutting machines. Actuality is the absence of a simple vibration testing technique. In the course of the work various methods of vibration diagnostics of metal cutting machines were considered, suggestions were made on the application of vibration diagnostics methods for metal cutting machines in each specific task, a universal technique for performing vibration diagnostics of metal cutting machines with the Vibroregistrator-M2

    Many-Body Physics with Ultracold Gases

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    This article reviews recent experimental and theoretical progress on many-body phenomena in dilute, ultracold gases. Its focus are effects beyond standard weak-coupling descriptions, like the Mott-Hubbard-transition in optical lattices, strongly interacting gases in one and two dimensions or lowest Landau level physics in quasi two-dimensional gases in fast rotation. Strong correlations in fermionic gases are discussed in optical lattices or near Feshbach resonances in the BCS-BEC crossover.Comment: revised version, accepted for publication in Rev. Mod. Phy

    Of Risks and Ratios

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    Down But Not Out

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    Essential Role of Complement in Pregnancy: From Implantation to Parturition and Beyond

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    The complement cascade was identified over 100 years ago, yet investigation of its role in pregnancy remains an area of intense research. Complement inhibitors at the maternal-fetal interface prevent inappropriate complement activation to protect the fetus. However, this versatile proteolytic cascade also favorably influences numerous stages of pregnancy, including implantation, fetal development, and labor. Inappropriate complement activation in pregnancy can have adverse lifelong sequelae for both mother and child. This review summarizes the current understanding of complement activation during all stages of pregnancy. In addition, consequences of complement dysregulation during adverse pregnancy outcomes from miscarriage, preeclampsia, and pre-term birth are examined. Finally, future research directions into complement activation during pregnancy are considered.This work was supported in part by Their World and Tommy's (GG), American Heart Association 17GRNT33650049 (JR and SF), NIH R21HD100840 (JR), Institutional Development Award (IDeA) from NIH P20GM103418 (JL and SF), and the Defense Medical Research and Development Program under Award No. W81XWH-18-1-0716 (SF)
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