Results 21 to 30 of about 508,777 (249)

Twin reversed arterial perfusion sequence in a monochorionic monoamniotic twin pregnancy: a very rare condition

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2020
Background Twin reversed arterial perfusion sequence (TRAP) is a very rare congenital anomaly. We present sonographic findings of TRAP sequence in the case of a multiparous woman with a monochorionic monoamniotic twin pregnancy who was referred to our ...
Abolfazl Abouie   +5 more
doaj   +1 more source

Twin reversed arterial perfusion (TRAP) sequence in association with VACTERL association: a case report

open access: yesJournal of Medical Case Reports, 2010
Introduction Twin reversed arterial perfusion (TRAP) sequence is a rare complication of multiple pregnancy caused by defects in early embryogenesis. The pump twin supplies the acardiac recipient twin with blood, and although the pump twin is usually ...
Millard Katherine   +2 more
doaj   +1 more source

Tunable Dual-Wavelength with Twin-Pulse Dissipative Solitons in All-Normal Dispersion Yb-Doped Fiber Laser

open access: yesMicromachines, 2022
A tunable dual-wavelength with two separated twin-pulse dissipative solitons (DSs) of Yb-doped mode-locked fiber laser in the all-normal-dispersion (ANDi) regime is firstly reported and demonstrated in this paper.
Xiaojun Zhu   +8 more
doaj   +1 more source

Twin reversed arterial perfusion syndrome in a monochorionic monoamniotic twin pregnancy

open access: yesThe Turkish Journal of Pediatrics, 2017
Twin reversed arterial perfusion syndrome is mostly seen in monochorionic diamniotic twin pregnancies with an estimated incidence of 1/9500-11000 pregnancies. One of the twins is acardiac with various abnormalities especially with upper part of the body,
Hacer Yapıcıoğlu-Yıldızdaş   +5 more
doaj   +1 more source

Vanishing acardiac twin with TRAP syndrome: A case report

open access: yesRadiology Case Reports, 2023
Acardiac twin is a rare complication of monochorionic twin pregnancy. We present case of a 24 years-old primigravida with monochorionic pregnancy having an amorphous acardiac twin diagnosed during routine first trimester ultrasound scan.
Swasti Pathak, MD, DNB, Gaurav Raj, MD
doaj   +1 more source

Two-Color Quantum Correlation between Down-Conversion Beams at 1.5 and 3.3 μm from a Singly Resonant Optical Parametric Oscillator

open access: yesApplied Sciences, 2020
We demonstrated a two-color quantum correlation between the down-conversion beams with a telecommunication wavelength at 1.5 μm and mid-infrared wavelength at 3.3 μm generated by a singly resonant optical parametric oscillator (SRO) operated above the ...
Dandan Nie   +3 more
doaj   +1 more source

A Taiwan's experience: A case report and review of literature of successful early intrauterine treatment with radiofrequency ablation in twin reversed arterial perfusion (TRAP) sequence

open access: yesJournal of the Formosan Medical Association, 2021
Acardiac twin or twin reversed arterial perfusion (TRAP) sequence is a rare medical complication of Monozygotic twins. Taiwanese Obstetricians usually treat TRAP sequence conservatively.
Kok-Seong Chan   +3 more
doaj   +1 more source

Chronic high vibration issue of a Condensate Pump [PDF]

open access: yes, 2022
Case StudiesChronic high vibration issue was being observed on a critical condensate pump. Although this motor driven pump is a standby unit, however, in case the running pump has a breakdown and the motor pump is unavailable, the Ammonia Plant will trip.
Bukhari, Syed M. Haseeb   +1 more
core   +1 more source

End-User's Guide To Centrifugal Pump Rotordynamics [PDF]

open access: yes, 2014
TutorialThis tutorial outlines the basics of pump rotordynamics in a form that is intended to be Machinery End User friendly. Key concepts will be defined in understandable terms, and analysis and testing options will be presented in summary form.
Marscher, William D., Marscher, Bill
core   +1 more source

Multiphase Pumping With Twin-Screw Pumps - Understand And Model Hydrodynamics And Hydroabrasive Wear

open access: yes, 2000
Tutorialpg. 153Crude oil and gas production can be enhanced by multiphase pumping from the well subsea to far distant production platforms. The twin-screw pump has proven quite suitable for this application.
Wirth, Wolfgang   +3 more
core   +1 more source

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