Results 1 to 10 of about 3,019,050 (308)

Formation mechanism of defects in the wall of a petroleum casing steel pipe

open access: yes工程科学学报, 2022
In this study, the defects in the wall of petroleum casing steel pipe were investigated. The morphology and composition of inclusions in the defects of the steel pipe were analyzed using scanning electron microscopy–energy-dispersive X-ray spectroscopy ...
Wen-kui YANG   +5 more
doaj   +1 more source

Tube-in-tube: A Solution for Retracted Tube

open access: yesJournal of Current Glaucoma Practice, 2021
Tube retraction after Ahmed glaucoma valve (AGV) implantation is an infrequent but known complication. The management option includes the use of a commercially available AGV tube extender, 22 G angiocatheter, resisting the existing glaucoma drainage device (GDD), or insertion of a new GDD.
Pandav, Surinder S   +2 more
openaire   +2 more sources

A Comparative Study on the Condensation Heat Transfer of R-513A as an Alternative to R-134a

open access: yesMachines, 2021
This paper presents the two-phase condensation heat transfer and pressure drop characteristics of R-513A as an alternative refrigerant to R-134a in a 9.52-mm OD horizontal microfin copper tube.
Andreas Karageorgis   +2 more
doaj   +1 more source

Analysis of Inventory Problems Using the Fault Tree Analysis Method (Case Study: PT Kimpai Dyna Tube)

open access: yesOPSI, 2022
PT Kimpai Dyna Tube focuses on PBL (Plastic Barier Laminate) Tube products, which currently focuses on providing cosmetic products with plastic-based materials.
Siti Salwa Azzahra Nurazizah Nuruljannah   +2 more
doaj   +1 more source

Tracheostomy Tubes [PDF]

open access: yesRespiratory Care, 2014
Tracheostomy tubes are used to administer positive-pressure ventilation, to provide a patent airway, and to provide access to the lower respiratory tract for airway clearance. They are available in a variety of sizes and styles from several manufacturers.
Dean R, Hess, Neila P, Altobelli
openaire   +2 more sources

Direct Fabrication of a Copper RTD over a Ceramic-Coated Stainless-Steel Tube by Combination of Magnetron Sputtering and Sol–Gel Techniques

open access: yesSensors, 2023
Reducing the economic and environmental impact of industrial process may be achieved by the smartisation of different components. In this work, tube smartisation is presented via direct fabrication of a copper (Cu)-based resistive temperature detector ...
Aitor Bikarregi   +7 more
doaj   +1 more source

Smart-cut-like laser slicing of GaN substrate using its own nitrogen

open access: yesScientific Reports, 2021
We have investigated the possibility of applying lasers to slice GaN substrates. Using a sub-nanosecond laser with a wavelength of 532 nm, we succeeded in slicing GaN substrates.
Atsushi Tanaka   +10 more
doaj   +1 more source

Live Birth in Woman With Premature Ovarian Insufficiency Receiving Ovarian Administration of Platelet-Rich Plasma (PRP) in Combination With Gonadotropin: A Case Report

open access: yesFrontiers in Endocrinology, 2020
The conception rates among women with premature ovarian insufficiency (POI) remain extremely low. To achieve a successful pregnancy, most of these women have to receive donor oocytes through IVF treatment.
Chao-Chin Hsu   +5 more
doaj   +1 more source

APPLICATION OF TIME-PULSE CONVERSION IN TEMPERATURE SENSORS WITH SEMICONDUCTOR SENSITIVE ELEMENT

open access: yesИзмерение, мониторинг, управление, контроль, 2022
Background. Taking into account the temperature of the object by autonomous information and control systems increases the accuracy of their work. The temperature sensors used have an analog output (voltage), which requires conversion to a form suitable
A.V. Zakharov   +2 more
doaj   +1 more source

Mechanically flexible viscosity sensor for real‐time monitoring of tubular architectures for industrial applications

open access: yesEngineering Reports, 2021
Real‐time monitoring of fluid viscosities in tubular systems is essential for industries transporting fluid media. The available real‐time viscometers for tubular systems have major drawbacks, such as using invasive methods with large pressure drops due ...
Maha A. Nour   +4 more
doaj   +1 more source

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