Results 101 to 110 of about 299,991 (289)

Transition Process from Diffuser Stall to Stage Stall in a Centrifugal Compressor with a Vaned Diffuser

open access: yesInternational Journal of Rotating Machinery, 2017
The transition process from a diffuser rotating stall to a stage stall in a centrifugal compressor with a vaned diffuser was investigated by experimental and numerical analyses. From the velocity measurements, it was found that the rotating stall existed
Nobumichi Fujisawa, Yutaka Ohta
doaj   +1 more source

Wind-Tunnel Investigation of an Advanced General Aviation Canard Configuration [PDF]

open access: yes
Wind-tunnel tests of a model of an advanced canard configuration designed for general aviation were conducted in the Langley 30- by 60-Foot Tunnel. The objective of the tests was to determine the aerodynamic stability and control characteristics of the ...
Chambers, J. R., Moul, T. M., Yip, L. P.
core   +1 more source

Extreme Kinetic Stability and RNase Resistance of Human Telomerase RNA G‐Quadruplexes Overcome by DHX36 Helicase

open access: yesAdvanced Science, EarlyView.
The RNA G‐quadruplexes formed at the 5'‐end of the RNA component of human telomerase possess extreme slow unfolding rate, rendering them resistant to nuclease degradation. The helicase DHX36 overcame this kinetic barrier and significantly reduced the folded fraction.
Qun Luo   +5 more
wiley   +1 more source

Evaluation of an envelope-limiting device using simulation and flight test of a remotely piloted research vehicle [PDF]

open access: yes
The operating characteristics of a nonlinear envelope-limiting device were investigated at extreme flight conditions by using a real time digital aircraft spin simulation and flight tests of a scale model remotely piloted research vehicle.
Petersen, K. L.
core   +1 more source

Dynamic Shifts in ER–Plasma Membrane Junctions Signaling Define Pro‐Metastatic N‐Glycosylation and Predict Prostate Cancer Progression

open access: yesAdvanced Science, EarlyView.
Prostate cancer remains a leading cause of male cancer death, yet screening cannot reliably identify aggressive disease, underscoring the need for tissue biomarkers. It is shown that primary tumors increase ER–plasma membrane junction signaling via STIM1/ORP5, whereas metastasis features their loss, Golgi dispersal, and rapid conversion of high‐mannose
Amanda J. Macke   +14 more
wiley   +1 more source

Effect of grooved casing treatment on the flow range capability of a single-stage axial-flow compressor [PDF]

open access: yes
Comparisons of the results of testing a single-stage axial-flow compressor with a solid-wall casing and with grooved casings are presented. The depth, location, and number of circumferential grooves in the casing over the casing over the rotor tip were ...
Bailey, E. E.
core   +1 more source

Scalable Electrochemical Concrete Fabrication and Closed‐Loop Recycling

open access: yesAdvanced Science, EarlyView.
The electrochemical‐driven recycling strategy establishes a reversible concrete material flow by extracting Ca, Si, Al, and Fe from concrete waste and regenerating functional feedstocks. These reversed products are reassembled into new concrete, which re‐enters service and ultimately returns to waste, enabling a closed‐loop, waste‐origin, and low ...
Hanxiong Lyu   +7 more
wiley   +1 more source

The development of CFD methods for rotor applications [PDF]

open access: yes
The optimum design of the advancing helicopter rotor for high-speed forward flight always involves a tradeoff between transonic and stall limitations. However, the preoccupation of the rotor industry was primarily concerned with stall until well into the
Caradonna, F. X., Mccroskey, W. J.
core   +1 more source

A theoretical and experimental appraisal of airworthiness evaluation techniques for small light aeroplanes [PDF]

open access: yes, 2005
This thesis was submitted for the degree of Doctor of Philosophy and awarded by the University of Southampton.A thorough evaluation of the airworthiness of a manned aircraft is vitally important, regardless of the size or function of the aircraft ...
Gratton, G.B.
core  

Cells Dynamically Adapt Their Nuclear Volumes and Proliferation Rates During Single to Multicellular Transitions

open access: yesAdvanced Science, EarlyView.
It is currently not well understood how cells regulate basic properties, e.g., volume and mechanics within dense multicellular environments like tumors. Here, we show that different cell types of cancer and also normal cells largely decrease their nuclear and cellular volumes in emerging cell clusters and that this is partly driven by cell cycle shifts.
Vaibhav Mahajan   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy