Results 31 to 40 of about 121,856 (205)

Characterization and mapping of surface physical properties of Mars from CRISM multi-angular data: application to Gusev Crater and Meridiani Planum [PDF]

, 2015
The analysis of the surface texture from the particle (grain size, shape and internal structure) to its organization (surface roughness) provides information on the geological processes.
Ceamanos, X., Costard, F., Daydou, Y., Douté, S., Fernando, J., Pilorget, C., Pinet, P., Schmidt, F.   +7 more
core   +3 more sources

Study on optimal configuration of energy-dissipating resistors in VSC-HVDC system for new energy island

Zhejiang dianli
In VSC-HVDC system for new energy island， surplus power consumption in the system during fault ride-through （FRT） is achieved by employing grouped AC energy-dissipating resistors of equal capacity. However， the presence of an excessively powered resistor
FENG Yanbo, WANG Shanshan, WU Ganglu, ZHAO Bing, YIN Rui, REN Yonghao, PENG Hongying   +6 more
doaj   +1 more source

Modelling and analysis of half‐/full‐bridge hybrid MMC when riding through DC‐side pole‐to‐ground fault

High Voltage, 2022
In a modular multilevel converter‐based high‐voltage direct current (MMC‐HVDC) system, the dc fault ride through (FRT) control is an effective way to deal with a dc‐side pole‐to‐ground (PTG) fault.
Zhen He, Jiabing Hu, Lei Lin, Pingliang Zeng   +3 more
doaj   +1 more source

Virtual synchronous generator control and fault ride-through strategies of VSC-HVDC system for new energy transmission

Zhejiang dianli
For the VSC-HVDC system transmitting new energy， poor parameter matching between the new energy controller and the VSC-HVDC controller can lead to sub-synchronous and super-synchronous oscillation.
LU Haiyang, WANG Nannan, MA Xiuda, SUI Shunke, WAMG Jiacheng   +4 more
doaj   +1 more source

Upper cervical range of rotation during the flexion-rotation test is age dependent: an observational study

Therapeutic Advances in Musculoskeletal Disease, 2020
Background: The flexion-rotation test (FRT) is widely used to detect movement dysfunction in the spinal segment C1/C2, especially in patients with cervicogenic headache. The current published literature indicates that range recorded during the FRT is not
Axel Georg Meender Schäfer, Thomas Schöttker-Königer, Toby Maxwell Hall, Ilias Mavroidis, Christoph Roeben, Martina Schneider, Yorick Wild, Kerstin Lüdtke   +7 more
doaj   +1 more source

Personality Traits and Entrepreneurial Intentions: Financial Risk-Taking as Mediator

Frontiers in Psychology, 2022
The interaction between environment and individual personality determines career. Over the past decades, the role of personality traits in explaining entrepreneurship cannot get much attention of researchers.
Anas A. Salameh, Hameeda Akhtar, Rani Gul, Abdullah Bin Omar, Sobia Hanif   +4 more
doaj   +1 more source

Foxg1 Defines Ventrolateral Zonal Identity by Sustaining Neurogenic Progenitor Potential in the Olfactory Epithelium. [PDF]

Genes Cells
Foxg1 maintains neurogenic progenitor potential in the ventrolateral olfactory epithelium. In control (Foxg1‐cHET) embryos, Foxg1‐expressing progenitors preferentially generate olfactory sensory neurons (OSNs) and support V‐zone expansion. Conditional Foxg1 deletion (Foxg1‐cKO) reduces V‐zone growth and shifts progenitor fate toward sustentacular cells
Kuriyama A, Furusho Y, Hanashima C.
europepmc   +2 more sources

Boundary conditions for hyperbolic formulations of the Einstein equations [PDF]

, 2003
In regards to the initial-boundary value problem of the Einstein equations, we argue that the projection of the Einstein equations along the normal to the boundary yields necessary and appropriate boundary conditions for a wide class of equivalent ...
Abrahams A M, Anderson A, Arnowitt R, Baumgarte T W, Frittelli S, Frittelli S, Frittelli S, Gustaffson B, Kidder L E, Lehner L, Reula O A, Roberto G mez, Shibata M, Shinkai H, Simonetta Frittelli, Stewart J M, Szilágyi B, Weinberg S, York J W   +18 more
core   +2 more sources

Fractional Fourier transform description with use of differential operators [PDF]

, 1997
The fractional Fourier transform (FRT) is expressed by means of propagation and thin-lens phase delay operators, and a large number of optical systems associated with it are found.
Rabal, Héctor J., Ruiz, Beatriz
core   +1 more source

P22 mediated recombination of frt-sites

Virology, 2014
Flp mediated site specific recombination of frt-sites is frequently used in genetic engineering to excise, insert or invert DNA-cassettes in the chromosome. While constructs flanked by frt-sites are generally considered to be stable in the absence of the Flp enzyme, we observed that P22 chromosomes exceeding wild-type length tend to lose frt-flanked ...
Makumi, Angela, Cenens, William, Lavigne, Rob, Aertsen, Abram   +3 more
openaire   +2 more sources