316 research outputs found
Trade-off between quantum and thermal fluctuations in mirror coatings yields improved sensitivity of gravitational-wave interferometers
We propose a simple way to improve the laser gravitational-wave detectors
sensitivity by means of reduction of the number of reflective coating layers of
the core optics mirrors. This effects in the proportional decrease of the
coating thermal noise, the most notorious among the interferometers technical
noise sources. The price for this is the increased quantum noise, as well as
high requirements for the pump laser power and power at the beamsplitter.
However, as far as these processes depend differently on the coating thickness,
we demonstrate that a certain trade-off is possible, yielding a 20-30% gain
(for diverse gravitational wave signal types and interferometer
configurations), providing that feasible values of laser power and power on the
beamsplitter are assumed.Comment: 11 pages, 4 figures, 4 table
Charged Particles and the Electro-Magnetic Field in Non-Inertial Frames of Minkowski Spacetime: II. Applications: Rotating Frames, Sagnac Effect, Faraday Rotation, Wrap-up Effect
We apply the theory of non-inertial frames in Minkowski space-time, developed
in the previous paper, to various relevant physical systems. We give the 3+1
description without coordinate-singularities of the rotating disk and the
Sagnac effect, with added comments on pulsar magnetosphere and on a
relativistic extension of the Earth-fixed coordinate system. Then we study
properties of Maxwell equations in non-inertial frames like the wrap-up effect
and the Faraday rotation in astrophysics.Comment: This paper and the second one are an adaptation of arXiv 0812.3057
for publication on Int.J.Geom. Methods in Modern Phys. 36
ΠΠ΅ΡΠΈΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠΉ ΠΌΠ΅Π½Π΅Π΄ΠΆΠΌΠ΅Π½Ρ Π°Π±Π΄ΠΎΠΌΠΈΠ½Π°Π»ΡΠ½ΠΎΠΉ Π³ΠΈΡΡΠ΅ΡΡΠΊΡΠΎΠΌΠΈΠΈ: Π½ΠΎΠ²ΡΠ΅ ΠΏΠΎΠ΄Ρ ΠΎΠ΄Ρ ΠΈ ΠΎΠ±Π·ΠΎΡ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΡ
ΠΠ±Π΄ΠΎΠΌΠΈΠ½Π°Π»ΡΠ½Π°Ρ Π³ΠΈΡΡΠ΅ΡΡΠΊΡΠΎΠΌΠΈΡ (ΠΠ) ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΠ΄Π½ΠΉ ΠΈΠ· Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ, Π²ΡΠΏΠΎΠ»Π½ΡΠ΅ΠΌΡΡ
ΠΏΡΠΈ Π·Π»ΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
, Π° ΡΠ°ΠΊΠΆΠ΅ Π΄ΠΎΠ±ΡΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
ΠΎΠΏΡΡ
ΠΎΠ»ΡΡ
ΠΎΡΠ³Π°Π½ΠΎΠ² ΠΆΠ΅Π½ΡΠΊΠΎΠΉ ΡΠ΅ΠΏΡΠΎΠ΄ΡΠΊΡΠΈΠ²Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ.
ΠΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΉ ΠΏΠ΅ΡΠΈΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠΉ ΠΌΠ΅Π½Π΅Π΄ΠΆΠΌΠ΅Π½Ρ Π·Π°Π²ΠΈΡΠΈΡ ΠΎΡ ΡΠΎΡΡΡΠ΄Π½ΠΈΡΠ΅ΡΡΠ²Π° ΠΌΠ΅ΠΆΠ΄Ρ Ρ
ΠΈΡΡΡΠ³Π°ΠΌΠΈ, Π°Π½Π΅ΡΡΠ΅Π·ΠΈΠΎΠ»ΠΎΠ³Π°ΠΌΠΈ, Π³Π΅ΠΌΠΎΡΡΠ°Π·ΠΈΠΎΠ»ΠΎΠ³Π°ΠΌΠΈ ΠΈ ΡΠ»ΡΠΆΠ±Π°ΠΌΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ
Π±ΠΎΠ»ΡΡ Π»Π΅ΡΠ΅Π±Π½ΠΎΠ³ΠΎ ΡΡΡΠ΅ΠΆΠ΄Π΅Π½ΠΈΡ ΠΈ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠΎΠ±ΠΎΠΉ ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΠ΅ ΡΠΏΡΠ΅ΠΆΠ΄Π°ΡΡΠ΅ΠΉ
Π°Π½Π°Π»Π³Π΅Π·ΠΈΠΈ, ΠΎΠ±ΡΠ΅ΠΉ ΠΈ ΡΠ΅Π³ΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ Π°Π½Π΅ΡΡΠ΅Π·ΠΈΠΈ, ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΈ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΡΠΈΡΡΠ΅ΠΌΡ Π³Π΅ΠΌΠΎΡΡΠ°Π·Π°.Abdominal hysterectomy (AH) is one of the most common surgeries performed
for malignant as well as benign indications. Effective perioperative managementdepends on the cooperation between the surgeons, anesthetists, hemostasiologists
and the hospitalβs pain management service, and is a combination of preemptive
analgesia, general and regional anesthesia, studying and regulation of the functional state of the hemostasis system. The objective of this work is to present the currently available therapeutic strategies for the treatment of posthysterectomy pain
and trombotic complications in the light of our experience and the literature review
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