Results 41 to 50 of about 25,553 (263)

Bioinformatic analysis of the RNA expression patterns in microgravity-induced bone loss

Frontiers in Genetics, 2022
Researchers have linked microgravity in space to the significant imbalance between bone formation and bone resorption that induces persistent bone loss in load-bearing bones.
Xiaoyan Zhang, Tong Xue, Zebing Hu, Xian Guo, Gaozhi Li, Yixuan Wang, Lijun Zhang, Liqun Xu, Xinsheng Cao, Shu Zhang, Fei Shi, Ke Wang   +11 more
doaj   +1 more source

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Parameter Design for Inter-Satellite Laser Link Acquisition Under Weak Light Conditions

Remote Sensing
For the Taiji program or other LISA-like space-based gravitational wave (GW) detection missions, establishing laser links is a prerequisite for entering the normal science mode.
Mengyang Zhao, Jia Shen, Juan Wang, Pan Li, Ruihong Gao, Ziren Luo   +5 more
doaj   +1 more source

Investigation on the Band Gap and Negative Properties of Concentric Ring Acoustic Metamaterial

Shock and Vibration, 2018
The acoustic characteristics of 2D single-oscillator, dual-oscillator, and triple-oscillator acoustic metamaterials were investigated based on concentric ring structures using the finite element method.
Meng Chen, Dan Meng, Heng Jiang, Yuren Wang   +3 more
doaj   +1 more source

The Study of the Mechanism of Protein Crystallization in Space by Using Microchannel to Simulate Microgravity Environment

Crystals, 2018
Space is expected to be a convection-free, quiescent environment for the production of large-size and high-quality protein crystals. However, the mechanisms by which the diffusion environment in space improves the quality of the protein crystals are not ...
Yong Yu, Kai Li, Hai Lin, Ji-Cheng Li
doaj   +1 more source

Fluid and Bubble Flow Detach Adherent Cancer Cells to Form Spheroids on a Random Positioning Machine

Cells, 2023
In preparing space and microgravity experiments, the utilization of ground-based facilities is common for initial experiments and feasibility studies. One approach to simulating microgravity conditions on Earth is to employ a random positioning machine ...
José Luis Cortés-Sánchez, Daniela Melnik, Viviann Sandt, Stefan Kahlert, Shannon Marchal, Ian R. D. Johnson, Marco Calvaruso, Christian Liemersdorf, Simon L. Wuest, Daniela Grimm, Marcus Krüger   +10 more
doaj   +1 more source

Stance and Gait Analysis of Apollo Astronauts on the Moon

Muscle &Nerve, EarlyView.
ABSTRACT Introduction/Aim As humans return to the Moon, safe efficient ambulation and fall prevention on the lunar surface are key concerns. The analysis of gait from archived Apollo mission video footage is now possible with pose estimation video analysis software.
Faye Y. Chiou‐Tan, Conrad Li, Jason P. Caffrey, Millard Reschke, Timothy R. Macaulay   +4 more
wiley   +1 more source

Using DWS Optical Readout to Improve the Sensitivity of Torsion Pendulum

Sensors, 2023
In space gravitational wave detection missions, a drag-free system is used to keep the test mass (TM) free-falling in an ultralow-noise environment.
Shaoxin Wang, Heshan Liu, Lei Dai, Ziren Luo, Peng Xu, Pan Li, Ruihong Gao, Dayu Li, Keqi Qi   +8 more
doaj   +1 more source

Microgravity indoor [PDF]

Revista Brasileira de Ensino de Física, 2016
Some experimental activities of low cost and easy accomplishment are proposed to reproduce the microgravity environment that exists in space ships, free fall towers and parabolic flights. The objective is to provide didactical material to aid teachers in terms of assembling instructions, besides the implementation of these experiments and explanation ...
Baliscei, Marcos Paulo, Rodrigues Junior, Ary de Araujo   +1 more
openaire   +4 more sources

The intertwined fate of agriculture and human expansion: Gaps and solutions for scalable space crop systems

PLANTS, PEOPLE, PLANET, EarlyView.
As humanity prepares for sustained life beyond Earth, developing resilient, resource‐efficient food systems is essential. This research outlines a strategic roadmap for scalable space agriculture, addressing key challenges in crop resilience, substrate performance, and autonomous life‐support integration.
Rafael Loureiro, Andrew Palmer
wiley   +1 more source