Results 51 to 60 of about 55,411 (278)

Flow boiling in straight heated tubes under microgravity conditions [PDF]

, 2012
Boiling two-phase flow can transfer large heat fluxes with small driving temperature differences, which is of great interest for the design of high-performance thermal management systems applied to space platforms and on-board electronics cooling in ...
Colin, Catherine, Narcy, Marine, De Malmazet, Erik   +2 more
core  

Turbulent bubbly flow in pipe under gravity and microgravity conditions [PDF]

, 2012
Experiments on vertical turbulent flow with millimetric bubbles, under three gravity conditions, upward, downward and microgravity flows (1g, -1g and 0g), have been performed to understand the influence of gravity upon the flow structure and the phase ...
Colin, Catherine, Fabre, Jean, Kamp, Arjan   +2 more
core   +1 more source

Low‐Outgassing Liquid Metal–Silicone Composites for Multifunctional Space Applications

Advanced Materials Technologies, EarlyView.
Integrating liquid metal microdroplets into a space‐grade silicone creates a multifunctional composite while preserving its inherent flexibility and low‐outgassing behavior. The composite has 11×$\times$ higher thermal conductivity while remaining thermally stable and maintaining a total mass loss of ≤$\le$ 1% under thermal vacuum testing.
Spencer Pak, Matthew R. Jamison, Cadré J. Francis, Ravi Tutika, Stephen A. Morin, Eric J. Markvicka   +5 more
wiley   +1 more source

The adaptation of Escherichia coli cells grown in simulated microgravity for an extended period is both phenotypic and genomic

, 2019
Microorganisms impact spaceflight in a variety of ways. They play a positive role in biological systems, such as waste water treatment but can be problematic through buildups of biofilms that can affect advanced life support.
Karouia, Fathi, Ott, C. Mark, Pierson, Duane L., Tirumalai, Madhan R., Tran, Quyen, Fox, George E., Bruce, Rebekah J., Stepanov, Victor G.   +7 more
core   +2 more sources

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Cellular response in three-dimensional spheroids and tissues exposed to real and simulated microgravity: a narrative review [PDF]

The rising aging population underscores the need for advances in tissue engineering and regenerative medicine. Alterations in cellular response in microgravity might be pivotal in unraveling the intricate cellular mechanisms governing tissue and organ ...
Chou, J, Moroni, L, Hinkelbein, J, van den Nieuwenhof, DWA   +3 more
core   +1 more source

Matrix Stiffness Orchestrates Mesenchymal Stem Cell Lineage Commitment Toward Osteogenesis and Adipogenesis Through the PIEZO1/SP1/STC2 Axis

Advanced Science, EarlyView.
Matrix stiffness directs mesenchymal stem cell lineage commitment through PIEZO1‐dependent activation of the SP1/STC2 pathway. Stiff matrices favor osteogenesis and suppress adipogenesis, whereas the loss of PIEZO1 function impairs early bone formation. STC2 retains lineage‐regulatory activity even when PIEZO1 is inactive.
Shuo Zhang, Siteng Li, Wenzhong Chen, Qingcheng Song, Haiyue Zhao, Peng Wang, Yiran Zhang, Wenquan Liang, Shaowei Zheng, Juan Wang, Wei Chen, Yanbin Zhu, Yingze Zhang   +12 more
wiley   +1 more source

Vertexformer: the interpretable predictive research on thermocapillary convection of large Prandtl number liquid bridges

npj Microgravity
This study investigates thermocapillary convection in large-Prandtl-number liquid bridges under microgravity. A novel, interpretable deep learning framework, Vortexformer-SHAP, is developed to accurately predict flow dynamics and uncover underlying ...
Haoran Gao, Jia Wang, Li Duan, Qi Kang
doaj   +1 more source

Extracellular Vesicles for Space Biomedical Research. [PDF]

J Extracell Vesicles
Microgravity reshapes EV biogenesis and cargo selection, which brings new opportunities for longitudinal liquid‐biopsy readouts of stress and aging‐like trajectories, as well as the regenerative products in spaceflight research. ABSTRACT Extracellular vesicles (EVs) are regulated, information‐rich nanovesicles that reflect aspects of parent‐cell state,
Ali S, Diaz BIM, Zhuang P, Greenberg Z, Zhang Y, Richards J, Carlos D, Countryman S, Leeuwenburgh C, Lee LP, He M.   +10 more
europepmc   +2 more sources

Cytoskeletal Tensegrity in Microgravity [PDF]

Life, 2021
In order for Man to venture further into Space he will have to adapt to its conditions, including microgravity. Life as we know it has evolved on Earth with a substantial gravitational field. If they spend considerable time away from Earth, astronauts experience physiological, mental, and anatomical changes. It is not clear if these are pathological or
openaire   +3 more sources