Results 51 to 60 of about 15,310,679 (339)

Investigation on flow mechanism of an advanced transonic centrifugal compressor with free-form impeller at design and off-design speeds

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
A transonic centrifugal compressor with a ruled-impeller (that is, impeller blades are generated by a set of points swept by a moving straight line) was used as the baseline, and the impeller blades were redesigned using non-ruled surfaces (referred to ...
Zi-liang Li   +3 more
doaj   +1 more source

Secondary flow reduction techniques in linear turbine cascades [PDF]

open access: yes, 1993
This thesis investigates a novel secondary flow reduction method. The inlet boundary layer to a linear turbine cascade is skewed by injection of air through an upstream slot to oppose regular generated negative stream wise vorticity.
Biesinger, T.E, Biesinger, Thomas Ernst
core  

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Prediction of secondary flow losses in an entrance duct to a low-pressure turbine

open access: yesArchives of Mechanics, 2019
Secondary flow features and total pressure losses by means of the total pressure loss coefficient are discussed in an entrance duct, named a turbine central frame (TCF), to a four-stage low-pressure turbine (LPT) of aero-engine.
P. Jonak, T. Borzęcki, S. Kubacki
doaj   +1 more source

Flow-Rate-Insensitive Plasma Extraction by the Stabilization and Acceleration of Secondary Flow in the Ultralow Aspect Ratio Spiral Channel

open access: yes, 2023
Although microfluidic devices have made remarkable strides in blood cell separation, there is still a need for further development and improvement in this area.
Yanbing Niu (12841961)   +7 more
core   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk   +10 more
wiley   +1 more source

NUMERICAL SIMULATION OF THE INFLUENCE OF A FILLET AND A BULB ON THE SECONDARY FLOW IN A COMPRESSOR CASCADE

open access: yesTASK Quarterly, 2002
Large fillet radii are typically found on highly loaded compressor rotors to ensure structural integrity. The objective of this paper is to investigate the impact of such real geometry effects on the flow at the hub section.
MARTIN HOEGER   +4 more
doaj  

Experimental Study on a Three-Dimensional Wall Jet

open access: yesJournal of Fluid Science and Technology, 2007
This study is to clarify the flow structure of a three-dimensional wall jet discharged tangentially on a flat surface from a circular nozzle. Distributions of the mean velocities and fluctuating velocities in a cross section of a fully-developed flow ...
Yoshihiro INOUE   +2 more
doaj   +1 more source

The Impact of the COVID‐19 Pandemic on Childhood Cancer Survival: A Population‐Based Assessment of Survival Patterns Between 2015 and 2023 in Germany

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann   +8 more
wiley   +1 more source

LES of Turbulent Flow in Subchannel and Analysis of Driving Force of Secondary Flow

open access: yesJournal of Fluid Science and Technology, 2007
The mechanism of secondary flow was discussed based on a result of LES of turbulent flow in a subchannel. The LES was carried out on the Cartesian grid system using an improved immersed boundary method developed for accurate simulation of complex wall ...
Tsutomu IKENO, Takeo KAJISHIMA
doaj   +1 more source

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