Results 61 to 70 of about 341,826 (304)

Effect of Centrifugal Force on Power Output of a Spin-Coated Poly(Vinylidene Fluoride-Trifluoroethylene)-Based Piezoelectric Nanogenerator

Energies, 2023
While poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) film is an excellent piezoelectric material for mechanical energy harvesting, the piezoelectric output varies considerably with the spin coating conditions.
Dong Geun Jeong, Huidrom Hemojit Singh, Mi Suk Kim, Jong Hoon Jung   +3 more
doaj   +1 more source

The Hubble Space Telescope Extragalactic Distance Scale Key Project XXIII. The Discovery of Cepheids In NGC 3319 [PDF]

, 1999
The distance to NGC 3319 has been determined from Cepheid variable stars as part of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale.
Abhijit Saha, Anne Turner, Barry F. Madore, Bottinelli L., Brad K. Gibson, Daniel Kelson, Dean J. F., Fabio Bresolin, Garth D. Illingworth, Holland C. Ford, Jeremy R. Mould, John A. Graham, John G. Hoessel, John P. Huchra, Kim M. Sebo, Laura Ferrarese, Lucas Macri, Mingsheng Han, Moore E. M., N. A. Silbermann, Paul Harding, Peter B. Stetson, Randy L. Phelps, Robert C. Kennicutt, Shaun M. Hughes, Shoko Sakai, Stetson P. B., Wendy L. Freedman   +27 more
core   +2 more sources

Numerical Analysis of Occupant Head Injuries in Impacts with Dump Truck Panel

Applied Bionics and Biomechanics, 2018
The human head will inevitably impact on the panel causing injury due to the inertia during dump truck collisions or emergency braking. Therefore, this paper aims to analyze the effects of panel design parameters on occupant head injuries via simulations
Shence Wang, Deshun Liu, Zhihua Cai
doaj   +1 more source

Stellar populations in the dwarf spheroidal galaxy Leo I [PDF]

, 1998
We present a detailed study of the color magnitude diagram (CMD) of the dwarf spheroidal galaxy Leo I, based on archival Hubble Space Telescope data. Our photometric analysis, confirming previous results on the brighter portion of the CMD, allow us to ...
Caputo F., Caputo F., Caputo F., Cassisi S., Castellani V., Castelli F., Castelli F., Demers S., Filippina Caputo, Gallart C., Gianni Marconi, Marco Castellani, Patrizia Santolamazza, Santi Cassisi   +13 more
core   +3 more sources

Nitrogen Abundances and the Distance Moduli of the Pleiades and Hyades [PDF]

, 2013
Recent reanalyses of HIPPARCOS parallax data confirm a previously noted discrepancy with the Pleiades distance modulus estimated from main-sequence fitting in the color-magnitude diagram. One proposed explanation of this distance modulus discrepancy is a
Boesgaard, Ann M., Chen, Yu, King, Jeremy R., Miller, Blake   +3 more
core   +3 more sources

STUDY ON MECHANICAL PROPERTIES OF POROUS STRUCTURES BASED ON TPMS

Jixie qiangdu, 2022
In order to explore the influence of different TPMS pore structures on the mechanical properties of the porous scaffold, TPMS expressed by implicit function was used as the basic pore unit to construct the micro-porous structure.
WANG MaoHua, DUAN MingDe, YANG ZiWei, ZHANG ZhuangYa, WANG Pei, HAN ZongZheng   +5 more
doaj  

The Distance to the M31 Globular Cluster System [PDF]

, 1998
The distance to the centroid of the M31 globular cluster system is determined by fitting theoretical isochrones to the observed red-giant branches of fourteen globular clusters in M31.
Battistini P., Bonoli F., de Freitas Pacheco J. A., Feast M. W., Madore B. F., Ponder J., Stephen Holland   +6 more
core   +2 more sources

The Araucaria Project. The distance to the Small Magellanic Cloud from late-type eclipsing binaries

, 2013
We present a distance determination to the Small Magellanic Cloud (SMC) based on an analysis of four detached, long period, late type eclipsing binaries discovered by the OGLE Survey.
Bresolin, Fabio, Gallenne, Alexandre, Gieren, Wolfgang, Graczyk, Dariusz, Górski, Marek, Karczmarek, Paulina, Konorski, Piotr, Kudritzki, Rolf-Peter, Pietrzynski, Grzegorz, Pilecki, Bogumił, Soszynski, Igor, Suchomska, Ksenia, Thompson, Ian B., Udalski, Andrzej, Villanova, Sandro   +14 more
core   +1 more source

Correlated errors in Hipparcos parallaxes towards the Pleiades and the Hyades [PDF]

, 1998
We show that the errors in the Hipparcos parallaxes towards the Pleiades and the Hyades open clusters are spatially correlated over angular scales of 2 to 3 deg, with an amplitude of up to 2 mas.
Alexander J. B., Andrew Gould, Arenou F., Artyukhina N. M., Bouvier J., Dravins D., Hertzsprung E., Hoyer P., Kovalevsky J., Lindegren L., Mermilliod J. C., Mermilliod J. C., Nissen P. E., O'Dell M. A., Perryman M. A. C., Raboud D., Rosvick J. M., Rosvick J. M., Schwan H., van Leeuwen F., van Leeuwen F., Vijay K. Narayanan   +21 more
core   +4 more sources

Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves

Shock and Vibration, 2021
It is essential to investigate the influence of blasting vibrations on pipelines, and the dynamic response is the crux in the safety issues. At present, the blasting seismic wave is usually regarded as a plane wave.
Shiwei Lu, Heng Zhang, Ling Ji
doaj   +1 more source