Results 51 to 60 of about 2,575 (186)

Artefact‐aware Brillouin microscopy framework for root mechanical phenotyping

Journal of Microscopy, EarlyView.
Abstract Plant roots continuously sense and respond to the mechanical signals of their growth environment: root cap function, mucilage secretion, and hormonal regulation jointly adapt root tip mechanics, shaping whether roots penetrate compacted layers or reorient around obstacles. Most current measurements of root mechanical properties require removal
Timm Landes, Ole Christian Hammerschmidt, Leon Pascal Wallentin, Ghulam Naseer Ud Din, Jacob Morsbach, Luis Alonso Baez, Dag Heinemann   +6 more
wiley   +1 more source

An Analysis of the Factors Influencing Dual Separation Zones on a Plate

Applied Sciences
The shock wave/boundary layer interaction phenomenon in hypersonic inlets, affected by background waves, may induce the formation of multiple separation zones.
Jiarui Zou, Xiaoqiang Fan, Bing Xiong
doaj   +1 more source

Post‐flight assessment of the OSIRIS‐REx Sample Return Capsule (SRC) for organic and other potential contaminants

Meteoritics &Planetary Science, EarlyView.
Abstract Regolith samples from the carbonaceous asteroid Bennu were stowed and delivered to Earth in the OSIRIS‐REx spacecraft's Sample Return Capsule (SRC). We applied multiple analytical techniques to study the components of the post‐flight SRC, with a focus on assessing the conditions and any contaminants to which the Bennu samples were exposed ...
Scott A. Sandford, Jason P. Dworkin, Kevin Righter, Feargus A. J. Abernethy, Romain Alosius, José C. Aponte, James Ball, Eve L. Berger, Denise K. Buckner, Henner Busemann, Simon J. Clemett, George Cody, Jamie Elsila, Dionysis I. Foustoukos, Ian A. Franchi, Daniel P. Glavin, Monica M. Grady, Heather V. Graham, Philipp R. Heck, Amy E. Hofmann, Yongsong Huang, Bumsoo Kim, Daniela Krietsch, Nicole G. Lunning, Colin Maden, Hannah L. McLain, Angel Mojarro, Michel Nuevo, Philippe Schmitt‐Kopplin, Ewerton Santos, Maria Schönbächler, Christopher J. Snead, Kathie L. Thomas‐Keprta, Alexander B. Verchovsky, Harold C. Connolly Jr., Dante S. Lauretta   +35 more
wiley   +1 more source

Analysis of S-duct's fluid-solid-thermal coupling characteristic considering creep effect

Hangkong gongcheng jinzhan
For the hypersonic vehicle whose inlet and combustion chamber are not on the same axis，the S-duct is an important component，and its main function is to turn the air flow. In order to study the influence of multi-field coupling effect of creep material on
LIN Yuan, SUN Mingbo, WANG Chenglong, SHEN Chibing, TAN Dongcai, SU Ang, GUAN Banglei, WAN Minggang, CHEN Qi, LI Zhang   +9 more
doaj   +1 more source

Analysis of Morphing Modes of Hypersonic Morphing Aircraft and Multiobjective Trajectory Optimization

IEEE Access, 2019
Aiming at improving the range of wing-body combination aircraft at hypersonic flow conditions and exploring the application of morphing technology in hypersonic aircraft, morphing aircrafts with different morphing modes have been proposed.
Wuyu Peng, Tao Yang, Zhiwei Feng, Qingbin Zhang   +3 more
doaj   +1 more source

Rare‐Earth–Sulfur Surface Modification Enables SiC Ceramics for Low‐Frequency Electromagnetic Wave Absorption in Extreme Environments

Advanced Science, Volume 13, Issue 55, 5 October 2026.
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu, Xiaojun Zeng, Yu‐Nan Tan, Chi Yu, Nuohua Xie, Yanfeng Gao   +5 more
wiley   +1 more source

Combined effects of double flat aerodisks and rear opposing jets on hypersonic spiked blunt body drag and heat reduction: An uncertainty and sensitivity analysis

Case Studies in Thermal Engineering
This study numerically investigates the combined effects of double flat aerodisks and rear opposing jets on the drag and heat reduction performance of a hypersonic spiked blunt body. Uncertainty quantification and sensitivity analysis are performed using
Ni He, Yu Pan, Zhenkang Zhang, Jian Chen
doaj   +1 more source

Numerical Simulation of Heat Transfer and Chemistry in the Wake behind a Hypersonic Slender Body at Angle of Attack

Aerospace, 2018
The effect of thermal and chemical boundary conditions on the structure and chemical composition of the wake behind a 3D Mach 7 sphere-cone at an angle of attack of 5 degrees and an altitude of roughly 30,000 m is explored.
Matthew J. Satchell, Jeffrey M. Layng, Robert B. Greendyke   +2 more
doaj   +1 more source

The importance of biodiversity components differs among wood‐based material Nature's contributions to people (NCP) in a tropical montane ecosystem

Oikos, Volume 2026, Issue 10, October 2026.
Biodiversity can influence forest productivity, but this does not necessarily translate into higher provision of wood‐based Nature's contributions to people (NCP), as only a subset of the wood produced is used for each NCP. Biodiversity–NCP relationships therefore require further assessment.
Koggani Dickson Koggani, Peter Manning, Andreas Ensslin, Gemma Rutten, Armin Komposch, Markus Fischer, Andreas Hemp, Andrea Larissa Boesing   +7 more
wiley   +1 more source

Effect of a Roughness Element on the Receptivity of a Hypersonic Boundary Layer over a Blunt Cone Due to Pulse Entropy Disturbance with a Single Frequency

Entropy, 2018
A high-order finite difference method was used to simulate the hypersonic flow field over a blunt cone with different height roughness elements. The unsteady flow field induced by pulse disturbances was analyzed and compared with that under continuous ...
Zhenqing Wang, Mingfang Shi, Xiaojun Tang, Hongqing Lv, Lidan Xu   +4 more
doaj   +1 more source