Results 101 to 110 of about 6,087,560 (207)

The stability of an air-maintained cavity behind a stationary object in flowing water [PDF]

, 1951
In studies made in the Free Surface Water Tunnel of a projectile running in an air-maintained cavity, the experimental relation between air entrainment rate and cavitation number was determined.
O'Neill, J. P., Swanson, W. M.
core  

Synthesis and superconductivity in yttrium-cerium hydrides at high pressures

Nature Communications
Further increasing the critical temperature and/or decreasing the stabilized pressure are the general hopes for the hydride superconductors. Inspired by the low stabilized pressure associated with Ce 4f electrons in superconducting cerium superhydride ...
Liu-Cheng Chen, Tao Luo, Zi-Yu Cao, Philip Dalladay-Simpson, Ge Huang, Di Peng, Li-Li Zhang, Federico Aiace Gorelli, Guo-Hua Zhong, Hai-Qing Lin, Xiao-Jia Chen   +10 more
doaj   +1 more source

On Pottery

, 2018
One of my life’s most poignant moments came during my first lesson at the potter’s wheel. I’ll never forget how my teacher laid his hands over mine and helped direct the pressure needed to guide the clay into center.
Terry, Mark
core  

Nonlinear Variation of Light-Pressure-Induced Multilevel Atomic Line Shifts with Vapor Pressure in Helium Spectroscopy [PDF]

arXiv, 2004
This paper has been temporarily withdrawn. Highly nonlinear dependences of 4He 2^3S - 2^3P lines on pressure were observed in vapor cell saturation spectroscopy. Line shifts agree with those expected from light-pressure-induced perturbation of atomic velocity distribution. In the lin-perp-lin pump and probe polarization configuration, multilevel atomic
arxiv  

The NACA CYH Airfoil Section [PDF]

The NACA CYH airfoil section is described and its aerodynamic characteristics are given as tested in the NACA variable density wind tunnel at twenty atmosphere pressure.
Higgins, George J
core   +1 more source

Diffusion-driven transient hydrogenation in metal superhydrides at extreme conditions

Nature Communications
In recent years, metal hydride research has become one of the driving forces of the high-pressure community, as it is believed to hold the key to superconductivity close to ambient temperature.
Yishan Zhou, Yunhua Fu, Meng Yang, Israel Osmond, Rajesh Jana, Takeshi Nakagawa, Owen Moulding, Jonathan Buhot, Sven Friedemann, Dominique Laniel, Thomas Meier   +10 more
doaj   +1 more source

A Study of Panel Loads and Centers of Pressure of Three Different Cruciform Aft-Tail Control Surfaces of a Wingless Missile from Mach 1.60 to 3.70 [PDF]

An investigation was made of the forces and moments on the cruciform aft-tail control surfaces of a wingless missile model to determine the variation of panel load and center of pressure with angle of attack, tail deflection, model roll angle, and Mach ...
Lamb, M., Trescot, C. D., Jr.
core   +1 more source

Sulfur chains glass formed by fast compression

Nature Communications
Due to the sulfur’s atoms’ propensity to form molecules and/or polymeric chains of various sizes and configuration, elemental sulfur possesses more allotropes and polymorphs than any other element at ambient conditions.
Kaiyuan Shi, Xiao Dong, Zhisheng Zhao, Lei Su, Cheng Ji, Bing Li, Jiaqing Zhang, Xingbang Dong, Pu Qiao, Xin Zhang, Haotian Yang, Guoqiang Yang, Eugene Gregoryanz, Ho-kwang Mao   +13 more
doaj   +1 more source

Effect of Sensor Size, Number and Position under the Foot to Measure the Center of Pressure (CoP) Displacement and Total Center of Pressure (CoPT) Using an Anatomical Foot Model. [PDF]

Sensors (Basel), 2023
Abou Ghaida H, Poffo L, Le Page R, Goujon JM.   +3 more
europepmc   +1 more source

Optically Coherent Nitrogen-Vacancy Centers in HPHT Treated Diamonds [PDF]

arXiv
As a point defect with unique spin and optical properties, nitrogen-vacancy (NV) center in diamond has attracted much attention in the fields of quantum sensing, quantum simulation, and quantum networks. The optical properties of an NV center are crucial for all these quantum applications.
arxiv