The techniques of power recycling and signal recycling have proven as key concepts to increase the sensitivity of large-scale gravitational wave detectors by independent resonant enhancement of light power and signal sidebands within the interferometer. Developing the latter concept further, twin signal recycling was proposed as an alternative to conventional detuned signal recycling. Twin sign...

Tyler Burge (Burge (1979)) has developed a very influential line of anti-individualistic thought. He argued that the cognitive content of a person’s concepts depends in part on their socio-linguistic environment. The argument of that paper centered around the example of a subject, now often called ‘Alf’, who does not know that by definition ‘arthritis’ applies only to conditions of the joints. ...

Snakes are active contours in the 2d image plane. Starting from an initial estimate of a curve's shape and position they move to salient image features in an iterative process driven by minimization of an energy function. The twin snakes concept is an extension to traditional snakes. Twin snakes are designed for detecting two parallel contours simultaneously and are useful for line extraction i...

This article proposes a health indicator estimation method based on the digital-twin concept aiming for condition monitoring of power electronic converters. The is noninvasive, without additional hardware circuits, and calibration requirements. An application buck dc-dc converter demonstrated with theoretical analyses, practical considerations, experimental verifications. digital replica an pro...

Abstract The preservation of infrastructure is becoming increasingly important. current reactive maintenance management only initiates measures after damage has occurred. Short‐term can lead to unforeseen restrictions in availability and thus cause high social economic damage. High‐quality measurement technology, automated data analysis, structured collaborative work are just a few technologica...

Background: Twin pregnancy consist a healthy fetus, and hydatidium molar pregnancy is unusual and very rare. Its incidence is in about 1,22,000 to 1,100,000 of all pregnancies. This type of pregnancy is commonly associated with several obstetric complications requiring early termination of pregnancy. Managing a twin mole pregnancy with normal and live fetuses is controversial, although this unu...

Objective: To test the hypothesis that identical twins show no inter-twin differences in cardiovascular structure or physiology in fetal life unless there has been twin-twin transfusion syndrome. Design: Unselected prospective case–control observational study of fetoplacental haemodynamics including echocardiography at a median of 24 (16.7 to 32.3) weeks, with postnatal confirmation of congenit...

OBJECTIVE To test the hypothesis that identical twins show no inter-twin differences in cardiovascular structure or physiology in fetal life unless there has been twin-twin transfusion syndrome. DESIGN Unselected prospective case-control observational study of fetoplacental haemodynamics including echocardiography at a median of 24 (16.7 to 32.3) weeks, with postnatal confirmation of congenit...

This paper proposes a digital twin-based diagnosis and fault tolerant control for T-type three-level rectifiers. To develop the twin (DT), dense deep neural network (DNN) machine learning approach is used. The trained offline using set of experimental data updated online to get maximum possible accuracy. Then, DT used tolerance open-switch faults (OSFs) related voltage current sensors (VACSF) o...