Results 131 to 140 of about 11,957,490 (337)

Advanced avionics concepts: Autonomous spacecraft control [PDF]

A large increase in space operations activities is expected because of Space Station Freedom (SSF) and long range Lunar base missions and Mars exploration.

core   +1 more source

A study on space efficiency in contemporary supertall mixed-use buildings

Journal of Building Engineering, 2023
H. E. Ilgın
semanticscholar   +1 more source

ATP13A2 is involved in intracellular polyamine transport in lung epithelial cells

FEBS Open Bio, EarlyView.
Spermidine transport in lung epithelial cells involves the polyamine transporter ATP13A2. Cell proliferation is associated with the upregulation of ATP13A2. Polyamines are present in all living cells and are implicated in various crucial cellular processes such as proliferation, apoptosis and autophagy.
Yuta Hatori, Kohei Kawabata, Takanori Kubo, Takeo Kitazawa, Sae Kanai, Madoka Iwashita, Ami Hayashi, Hiroyuki Nishi, Mikihisa Takano   +8 more
wiley   +1 more source

Experimental study on the fracture surface morphological characteristics and permeability characteristics of sandstones with different particle sizes

Energy Science & Engineering
To 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, Yang Xiangqian, Zhang Peiding, Li Zhenhua, Du Feng, Wang Wenqiang, Chen Huanqi   +6 more
doaj   +1 more source

Centrifuge modeling of excavation and numerical analyses of soil arching below excavation base

Yantu gongcheng xuebao
Soil 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

Summary of GaAs Solar Cell Performance and Radiation Damage Workshop [PDF]

The workshop considered the GaAs solar cell capability and promise in several steps: (1) maximum efficiency; (2) space application; (3) major technology problems (AR coating optimization, contacts); (4) radiation resistance; (5) cost and availability ...
Kamath, G. S.
core   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Experimental study on mechanical behavior of sand and silty clay under vertical unloading

Yantu gongcheng xuebao
The ultimate unloading ratio and the critical unloading ratio are the crucial parameters for determining the depth of disturbance below excavation base.
WU Kai 1, 2, 3, CHEN Renpeng 1, 2, 3, MENG Fanyan 1, 2, 3, HU Bo 2
doaj   +1 more source

Novel Concepts for High-Efficiency Lightweight Space Solar Cells

E3S Web of Conferences, 2017
One of the key issues in the design and development of a satellite Photovoltaic Assembly (PVA) is the trade-off to be made between the available volume located to the PVA, its mass and the total amount of power that the solar panels have to guarantee to ...
Cappelluti F., Ghione G., Gioannini M., Bauhuis G., Mulder P., Schermer J., Cimino M., Gervasio G., Bissels G., Katsia E., Aho T., Niemi T., Guina M., Kim D., Wu J., Liu H.   +15 more
doaj   +1 more source

Space Efficient Secret Sharing

, 2009
This note proposes a method of space efficient secret sharing in which k secrets are mapped into n shares (n>=k) of the same size. Since, n can be chosen to be equal to k, the method is space efficient. This method may be compared with conventional secret sharing schemes that divide a single secret into n shares.
Parakh, Abhishek, Kak, Subhash
openaire   +2 more sources