Results 91 to 100 of about 2,813,854 (249)
Free-piston Stirling technology for space power [PDF]
An overview is presented of the NASA Lewis Research Center free-piston Stirling engine activities directed toward space power. This work is being carried out under NASA's new Civil Space Technology Initiative (CSTI).
Slaby, Jack G.
core +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Deep learning-based prediction method for chamber pressure field in shield machines
Yantu gongcheng xuebaoThe chamber pressure is a key factor in the core issues of the stress state of equipment and the stability of tunnel face during shield tunneling. It exhibits significant spatial variability, and its formation and evolution originate from the complex ...
ZHANG Chao 1, 2, 3, ZHU Minxiang 1, LANG Zhixiong 1, CHEN Renpeng 1, 2, 3, , , CHENG Hongzhan 1, 2, 3
doaj +1 more source
Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies
FEBS Open Bio, EarlyView.We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli +8 more
wiley +1 more source
Yantu gongcheng xuebaoThe heave of the existing shield tunnels will be induced due to the above excavation, and then structural damages, including leakage and cracking, easily happen.
LIU Yuan 1, 2, 3, CHEN Renpeng 1, 2, 3, CHENG Hongzhan 1, 2, 3, WU Huaina 1, 2, 3, ZHANG Kai 1, 2, 3
doaj +1 more source
High-efficiency, radiation-resistant GaAs space cells [PDF]
Although many GaAs solar cells are intended for space applicatons, few measurements of cell degradation after radiation are available, particularly for cells with efficiencies exceeding 20 percent (one-sun, AMO).
Bertness, K. A. +4 more
core +1 more source
FEBS Open Bio, EarlyView.ERα splice variant ERα∆7 lacks the C‐terminus, and its expression may change phenotypes of breast cancers. Our results showed that ERα∆7 is found in the luminal A subtype, and elevated ERα∆7 levels are linked to improved cell survival with lower proliferation and migration.
Long Wai Tsui +10 more
wiley +1 more source
Energy Science & EngineeringTo study the seepage law and sectional morphological characteristics in splitting sandstones of different grain sizes, three‐dimensional morphological scanning tests and seepage characteristics tests are conducted on the splitting rock samples of ...
Cao Zhengzheng +6 more
doaj +1 more source
Centrifuge modeling of excavation and numerical analyses of soil arching below excavation base
Yantu gongcheng xuebaoSoil arching may be generated below excavation base. This kind of soil arching is featured with different boundary conditions of mechanism and displacement compared with that above trapdoor, of which the development orientation is the same as that of ...
WU Kai 1, 2, 3, CHEN Renpeng 1, 2, 3, MENG Fanyan 1, 2, 3, WANG Hanlin 1, 2, 3, CHENG Hongzhan 1, 2, 3
doaj +1 more source
Screening and epitope characterization of Nidogen‐2‐specific nanobodies
FEBS Open Bio, EarlyView.Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen +9 more
wiley +1 more source