Results 51 to 60 of about 9,447,834 (313)

Optimization of end-wall fence in turbine based on response surface methodology and genetic algorithm

open access: yesCase Studies in Thermal Engineering, 2023
Secondary flow loss accounts for a large proportion of the internal flow loss in turbine stages. The use of end-wall fences can effectively reduce secondary flow loss. In this study, the White cascade was taken as the research object, and the position of
Xu Han   +5 more
doaj   +1 more source

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

open access: yesFEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue   +6 more
wiley   +1 more source

Federated knowledge distillation for enhanced insulator defect detection in resource‐constrained environments

open access: yesIET Computer Vision
Insulator defect detection is crucial for the stable operation of power systems. It has become a mainstream research direction to realise insulator defect detection based on the combination of line images captured by UAVs and deep learning techniques ...
Xiaohu Huang   +9 more
doaj   +1 more source

Neural Network-based CF4 and SF6/CF4 Detection in High Altitude and Extreme Cold Regions

open access: yesZhongguo dianli
In extreme cold regions, the need to carry multiple instruments to meet the demands for detecting varying concentration levels of CF4 gas within SF6 gas leads to inefficient field operations and high costs for instrument acquisition. To overcome this, an
Rukuo MA   +5 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Efficient operation of a high-power X-band gyroklystron [PDF]

open access: yes, 2002
Experimental studies of amplification in a two-cavity X-band gyroklystron are reported. The system utilizes a thermionic magnetron injection gun at voltages up to 440 kV and currents up to 190 A in 1-μs pulses. Optimum performance is achieved by tapering
Calame, J   +7 more
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Distribution Optimization Method for Power Environment-Friendly Mixed Insulation Gas

open access: yesZhongguo dianli
The state-of-art cost of environmental-friendly SF6/CF4 mixed insulating gas of GIS equipment in the power system is relatively high. In order to ensure its insulation and arc extinguishing performance, SF6 gas is overfilled on site, which is not in line
Jie DONG   +4 more
doaj   +1 more source

High-power microwave power divider concept [PDF]

open access: yes, 1969
Variable power divider keeps microwave transmitter at full power. This preserves the bandwidth and modulation characteristics and proportions any amount of the full power from the normal antenna into a dissipative ...
Kolbly, R. B.
core   +1 more source

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