Results 41 to 50 of about 109,892 (168)

Broadband Transfer Characteristics of DC Electronic Current Transformers

open access: yesIEEE Access
The frequent operation of the switching devices inside the converter valve (mainly composed of thyristors) and other equipment in the converter station of ultra-high voltage direct current (UHVDC) transmission system generates a large number of high ...
Songyu Yang   +3 more
doaj   +1 more source

Efficiently Generating Mixing by Combining Differing Small Amplitude Helical Geometries

open access: yesFluids, 2019
Helical geometries have been used in recent years to form cardiovascular prostheses such as stents and shunts. The helical geometry has been found to induce swirling flow, promoting in-plane mixing.
Andrew N. Cookson   +2 more
doaj   +1 more source

Systematic review and network meta-analysis of outcomes of transcatheter strategies and surgical shunts for treatment of duct-dependent cyanotic congenital heart disease

open access: yesFrontiers in Cardiovascular Medicine
IntroductionCyanotic congenital heart disease with duct-dependent pulmonary blood flow requires initial palliation before definitive repair. Traditionally, these were surgical systemic-to-pulmonary shunts (SPS) such as the modified Blalock-Taussig-Thomas
Qiao Zhi Chee   +7 more
doaj   +1 more source

Management of tetralogy of Fallot with Blalock–Taussig shunt alone in a low-resource setting

open access: yesSahel Medical Journal, 2019
The outcomes of management of Tetralogy of Fallot (TOF) in children with only BT shunts have not been widely reported. Therefore, we present a 29-year-old man with complaints of progressive easy fatigability and effort intolerance.
Ehi Judith Ogbemudia, Stanley Okugbo
doaj   +1 more source

Disconnection of Ventriculoperitoneal Shunt after Mild Injury over the Catheter's Pathway: Two Cases

open access: yesIndian Journal of Neurosurgery, 2018
Hydrocephalus is present in 1 of every 1,000 newborns treated with ventriculoperitoneal shunts (VPSs) in the majority of cases. This procedure carries a high risk of complications.
Claudia Marcela Restrepo Lugo   +5 more
doaj   +1 more source

Infecções de derivações liquóricas em crianças: revisão de 100 infecções em 87 crianças Infections of cerebrospinal fluid shunts in children: revision of 100 infections in 87 children

open access: yesArquivos de Neuro-Psiquiatria, 1997
Estudo retrospectivo analisando quadro clínico e resultados terapêuticos de 100 episódios de infecções em 87 crianças submetidas a derivações liquóricas no período de 1982 a 1995.O quadro clínico mais frequente foi aquele secundário ao processo ...
Roberto Martins   +4 more
doaj   +1 more source

Endovascular laser treatment of mixed shunt

open access: yesVeins and Lymphatics, 2017
In this paper we present our endovascular LASER treatment of mixed shunts. This technique is built according the CHIVA’s important principles: diastolic reflux is interrupts at its proximal origin by flush LASER obliteration while centripetal systolic ...
Alvise Cavallini
doaj   +1 more source

Adding arterial nitrogen pressure to single‐measurement monitoring data enables diagnostic lung modeling by deep learning

open access: yesPhysiological Reports
We investigated whether including arterial pressure of nitrogen (PaN2) in a deep‐learning analysis of single measurements of arterial blood gases, cardiac output, and indirect calorimetry enables individualized quantification of West's ventilation ...
Peter H. Scott   +2 more
doaj   +1 more source

Surgical treatment of idiopathic normal pressure hydrocephalus (literature rewiew)

open access: yesВестник хирургии имени И.И. Грекова, 2019
Normal pressure hydrocephalus is a pathological condition characterized by ventricular expansion in combination with normal intracranial pressure and manifested by a specific triad of symptoms, including gait disorders, cognitive disorders and urinary ...
G. V. Gavrilov   +3 more
doaj   +1 more source

Electrical engineering equipment for generating and measuring of complete pulse current of artificial lightning in the conditions of high-voltage electrophysics laboratory

open access: yesElectrical engineering & Electromechanics
Goal. Decision of problem scientific and technical task on the reliable generating and measuring in the conditions of high-voltage electrophysics laboratory basic component of complete pulse current of artificial lightning with the rationed amplitude ...
M. I. Baranov, S. G. Buriakovskyi
doaj   +1 more source

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