Results 61 to 70 of about 449,166 (315)

A pressure regulator for the cuff of a tracheal tube [PDF]

Anaesthesia, 1992
Summary A regulator is described for the maintenance of a constant pressure difference above airway pressure during positive pressure ventilation in a cuffed tracheal tube. It comprises a tubular threshold valve which is powered by the anaesthetic gas supply source to a breathing system. The valve is interposed between the anaesthetic
openaire   +3 more sources

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

In-tube Heat Transfer and Pressure Drop of HFC-134a and Ester Lubricant Mixtures in a Smooth Tube and a Micro-Fin Tube: Part I Evaporation [PDF]

, 1994
Citation:Eckels, S.J., T.M. Doer, and M.B. Pate, In-tube heat transfer and pressure drop of R-134a and Ester lubricant mixtures in a smooth tube and a micro-fin tube: Part I-Evaporation. ASHRAE Transaction, 1994. 100(2): p.
Eckels, Steven J., Pate, M.B., Doerr, T.M.   +2 more
core  

Plastic load evaluation for a fixed tube sheet heat exchanger subject to proportional loading

, 2012
The plastic load of pressurised components can be calculated based on both the twice elastic slope and tangent methods. Both methods are problematic since they rely on parameters that are localised and therefore have a strong dependency on the gradient ...
Behseta, Khosrow, Robert Hamilton, Donald Mackenzie, Khosrow Behseta, Hamilton, Robert, Mackenzie, Donald   +5 more
core   +1 more source

Pressure control strategy for high-pressure tubing

Journal of Physics: Conference Series, 2020
Abstract The entry and ejection of fuel into and out of high-pressure oil tube are the basis of many fuel engines. However, the intermittent working process of fuel entering and exiting will be leading to pressure changes in high-pressure oil tube. Furthermore, it will affect the efficiency of an engine.
Guanwei Lin, Linhan Wang, Kangrui Chen
openaire   +1 more source

Longitudinal circulating tumor DNA profiling in patients with advanced endometrial cancer using an off‐the‐shelf targeted NGS panel

Molecular Oncology, EarlyView.
Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena, Karin Teien Lande, Eva Diaz, Ana Vilar, Juan Cueva, Efigenia Arias, Victoria Sampayo, Alicia Abalo, Nerea González, Eva Colás, Antonio Gil‐Moreno, Miguel Abal, Gema Moreno‐Bueno, Therese Sørlie, Kristina Lindemann, Laura Muinelo‐Romay   +15 more
wiley   +1 more source

Experimental and finite element study of the hydroforming bi-layered tubular components [PDF]

, 2005
The application of finite element method (FEM) in the area of metal forming and material processing has been increasing rapidly during the recent years.
Islam, Mohammad Din
core  

Changes of endotracheal tube cuff pressure and its indicators in laparoscopic resection of colorectal neoplasms: an observational prospective clinical trial

BMC Anesthesiology
Background Laparoscopic surgery is a popular alternative for resection of colorectal neoplasms. Carbon dioxide pneumoperitoneum and Trendelenburg positioning in procedure can significantly increase airway pressure, when endotracheal tube cuff pressure is
Shenquan Cai, Xuan Wang, Jie Zhang, Guangli Zhu, Chenyao Jian, Shanwu Feng, Manlin Duan   +6 more
doaj   +1 more source

ESR1 methylation and ESR1 mutations in circulating tumor cells (CTCs) and paired plasma‐cfDNA of advanced breast cancer patients: A feasibility proof‐of‐concept study

Molecular Oncology, EarlyView.
Circulating tumor cells (CTCs) and plasma cell‐free DNA (cfDNA) were analyzed to detect ESR1 mutations and methylation in patients with advanced breast cancer. CTC‐derived DNA showed higher sensitivity for mutation detection and revealed complementary genetic and epigenetic alterations, highlighting the added value of CTC analysis for understanding ...
Dimitra Stergiopoulou, Athina Markou, Eleonora Nicolo, Mara S Serafini, Qiang Zhang, Youbin Zhang, Lorenzo Gerratana, Andrew A. Davis, Huiping Liu, William J Gradishar, Carolina Reduzzi, Massimo Cristofanilli, Evi Lianidou   +12 more
wiley   +1 more source

Effect of cuff inflation with lidocaine, saline, and air on tracheal tube cuff pressure during laparoscopic resection of colorectal neoplasms: a randomized clinical trial

BMC Anesthesiology
Background Tracheal tube cuff pressure will increase after pneumoperitoneum when the cuff is inflated with air, high pressure can cause tracheal mucosal damage.
Xuan Wang, Jie Zhang, Guangli Zhu, Shenquan Cai, Qingtong Zhang, Manlin Duan, Shanwu Feng   +6 more
doaj   +1 more source