Results 121 to 130 of about 12,187,245 (343)

An approximation function for frequency constrained structural optimization [PDF]

The purpose is to examine a function for approximating natural frequency constraints during structural optimization. The nonlinearity of frequencies has posed a barrier to constructing approximations for frequency constraints of high enough quality to ...
Canfield, R. A.
core   +1 more source

Natural Inflation, Planck Scale Physics and Oscillating Primordial Spectrum

, 2005
In the ``natural inflation'' model, the inflaton potential is periodic. We show that Planck scale physics may induce corrections to the inflaton potential, which is also periodic with a greater frequency.
Adams F. C., Adams J., Adams J. A., BO FENG, Chung D. J. J., Feng B., Freese K., Hannestad S., Huang D. H., Hui L., Kofman L. A., Lange A. E., Lesgourgues J., Lyth D. H., Matsumiya M., MINGZHE LI, Moroi T., Shiu G., Starobinsky A. A., Stewart E. D., Wang L., Wang X., XINMIN ZHANG, XIULIAN WANG, XUE-LEI CHEN   +24 more
core   +1 more source

Diabetes‐induced vascular calcification is associated with low pyrophosphate and its oral supplementation prevents calcification in diabetic mice

FEBS Open Bio, EarlyView.
Induction of diabetes in three different mouse strains uniformly resulted in an increase in TNAP activity and a reduction in pyrophosphate (PPi) in the circulation. Inhibition of TNAP restored plasma PPi. Diabetes‐induced calcification in the media layer of the aorta was detected only in the Abcc6−/− strain, which is predisposed to ectopic ...
Krisztina Fülöp, Eszter Kozák, Natália Tőkési, Lilian Kocsis, Anikó Kelemen, Zsuzsanna Geszti, Adriána Kutás, Mariann Harangi, Ágnes Diószegi, Zsolt Rapi, József Balla, Olivier Le Saux, András Váradi, Viola Pomozi   +13 more
wiley   +1 more source

Investigation of Directionality Effect for 10 MW Monopile Offshore Wind Turbine Excited by Wind, Wave, and Earthquakes

Journal of Marine Science and Engineering
Offshore wind turbines (OWTs) exhibit inherent directional variations in inertia, stiffness, and damping properties. This study examines the directionality effect of a 10 MW monopile-supported OWT using an integrated rotor-nacelle assembly (RNA) and ...
Renqiang Xi, Qingxuan Zhou, Yongqing Lai, Wanli Yu   +3 more
doaj   +1 more source

Inductive Displacement Sensors with a Notch Filter for an Active Magnetic Bearing System

Sensors, 2014
Active magnetic bearing (AMB) systems support rotating shafts without any physical contact, using electromagnetic forces. Each radial AMB uses two pairs of electromagnets at opposite sides of the rotor.
Seng-Chi Chen, Dinh-Kha Le, Van-Sum Nguyen   +2 more
doaj   +1 more source

Evolutionary dynamics of the chloroplast genome in Daphne (Thymelaeaceae): comparative analysis with related genera and insights into phylogenetics

FEBS Open Bio, EarlyView.
Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah, Hui Li, Rushan Yan, Chengyu Chen, Madiha Islam, Abdul Majid, Ibrar Ahmed, Parviz Heidari, Xiaoxuan Tian   +8 more
wiley   +1 more source

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

FEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart, Haley L. Zubyk, Michelle Ogrodnik, Caitlin E. Mullarkey, Felicia Vulcu   +4 more
wiley   +1 more source

Vibration problem of a spherical tank containing jet propellant: numerical simulations

, 2006
This document is the final report on the joint research project on vibration problem of a spherical tank containing jet propellant between IHI, Japan and SES, University of Southampton, UK. The background of the project is described.
Tan, M., Toyota, Makoto, Xing, J.T., Xiong, Y.P.   +3 more
core  

The photoswitchable cannabinoid azo‐HU308 enables optical control of Ca2+ dynamics in INS‐1 β‐cells via off‐target effects on TRPC channels

FEBS Open Bio, EarlyView.
Light activation of the photoswitchable cannabinoid ligand azo‐HU308 triggers Ca2+ influx in pancreatic β‐cells through TRPC channels, independent of CB2 cannabinoid receptors. This reveals a non‐GPCR pathway for cannabinoid modulation of β‐cell Ca2+ dynamics and establishes azo‐HU308 as an optical tool to study cannabinoid signaling through TRP ...
Alexander E. G. Viray, James A. Frank
wiley   +1 more source

Frequency analysis of stiffened cylindrical shells with simply-supported edges [PDF]

Reinforced cylindrical shell frequency analysis for calculation of natural frequencies for F-1 and AC-2 Centaur ...
Tersteeg, G. E.
core   +1 more source