Results 151 to 160 of about 695,127 (377)

Helium in the Atmosphere [PDF]

Nature, 1908
RECENT investigations have demonstrated the widespread presence of the inert gases in the crystalline rocks, and the Hon. R. J. Strutt has shown that while the bulk of the gases in granite consists of nitrogen, there is a small but appreciable quantity of argon and helium, the former amounting to from three to four times the latter.
openaire   +2 more sources

How Does a Delicate Insect Wing Resist Damage? Chitin Orientation Is Adapted to the Mechanical Demands at the Nanoscale

Advanced Materials, EarlyView.
Nanoscale chitin fiber orientations in the insect wing play a critical role in adapting to complex mechanical demands. These findings reveal two distinct and functionally adaptive chitin orientation patterns in the membranes that vary regionally, optimizing mechanical resilience and deformation control.
Chuchu Li, Jiliang Liu, Manfred Burghammer, Chao Wan, Stanislav N. Gorb, Clemens F. Schaber   +5 more
wiley   +1 more source

The Aspherical Nucleus Theory Applied to the Principal Series of Helium [PDF]

, 1922
Ludwik Silberstein
openalex   +1 more source

Helium in Anaesthesia [PDF]

BMJ, 1938
R. C. Lawrence, W. Stanley Sykes
openaire   +5 more sources

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Passage of Helium through Compact Solids [PDF]

, 1935
RAYLEIGH
openalex   +1 more source

CONDENSATION OF HELIUM IN WEDGES

International Journal of Modern Physics B, 2007
We investigate the adsorption of helium in alkali wedges at zero temperature within a fully unrestricted density–functional theory. We have found a sequence of shapes that includes one filling transition on the nonwettable Cs and one emptying transition for every alkali, as well as a threshold for metastable configurations where helium does not ...
E. S. HERNANDEZ, ANCILOTTO, FRANCESCO, M. BARRANCO, M. PI, R. MAYOL   +4 more
openaire   +5 more sources

Design of Electrified Fiber Sorbents for Direct Air Capture with Electrically‐Driven Temperature Vacuum Swing Adsorption

Advanced Materials, EarlyView.
Through in‐depth investigation of structure‐performance interaction of air contactor material and process optimization, electrified fiber sorbent system capable of Joule heating is rationally designed for energy‐efficient electrically‐driven temperature vacuum swing adsorption for direct air capture.
Young Hun Lee, Jung Hun Lee, Hwajoo Joo, Michael Massen‐Hane, Injun Park, Soohyeon Rho, Aqil Jamal, T. Alan Hatton, Dong‐Yeun Koh   +8 more
wiley   +1 more source

Colossal Cryogenic Electro‐Optic Response Through Metastability in Strained BaTiO3 Thin Films

Advanced Materials, EarlyView.
Utilizing the thermodynamic theory of optical properties, a colossal cryogenic electro‐optic response in BaTiO3 thin films is designed and demonstrated by stabilizing a low symmetry metastable monoclinic phase via epitaxial strain tuning with an electro‐optic response reaching ≈2516 pm V−1 at 5 K. This approach represents a new paradigm for engineering
Albert Suceava, Sankalpa Hazra, Aiden Ross, Ian Reed Philippi, Dylan Sotir, Brynn Brower, Lei Ding, Yingxin Zhu, Zhiyu Zhang, Himirkanti Sarkar, Saugata Sarker, Yang Yang, Suchismita Sarker, Vladimir A. Stoica, Darrell G. Schlom, Long‐Qing Chen, Venkatraman Gopalan   +16 more
wiley   +1 more source

Thermodynamic Analysis of the Second Fluid Brayton Cycle for Scramjet Engine

Energies
The burning chamber wall of the ramjet engine is facing an extremely thermal environment during normal conditions. Thermal protection measures must be taken on the wall surface of the combustion chamber.
Jiamao Luo, Xin Qi, Si Jiao, Yunlei Xiao, Shengfang Huang, Shunhua Yang   +5 more
doaj   +1 more source