Results 81 to 90 of about 366,764 (206)

DC-SIGN mediated internalisation of glycosylated extracellular vesicles from Schistosoma mansoni increases activation of monocyte-derived dendritic cells

open access: yesJournal of Extracellular Vesicles, 2020
Helminths like Schistosoma mansoni release excretory/secretory (E/S) products that modulate host immunity to enable infection. Extracellular vesicles (EVs) are among these E/S products, yet molecular mechanisms and functionality of S.
Marije E. Kuipers   +10 more
doaj   +1 more source

DENDRITIC CELL DIFFERENTIATION BLOCKED BY PRIMARY EFFUSION LYMPHOMA-RELEASED FACTORS IS PARTIALLY RESTORED BY INHIBITION OF P38 MAPK [PDF]

open access: yes, 2010
To better understand the molecular mechanisms underlying the dendritic cell (DC) defects in cancer, we analyzed which signaling pathway is implicated in the abnormal monocyte differentiation into DC determined by the presence of Primary effusion lymphoma
CIRONE, Mara   +6 more
core   +2 more sources

Enhanced grain surface effect on magnetic properties of nanometric La0.7Ca0.3MnO3 manganite : Evidence of surface spin freezing of manganite nanoparticles

open access: yes, 2007
We have investigated the effect of nanometric grain size on magnetic properties of single phase, nanocrystalline, granular La0.7Ca0.3MnO3 (LCMO) sample.
Effects S.   +5 more
core   +1 more source

Programmable Gain Amplifiers with DC Suppression and Low Output Offset for Bioelectric Sensors

open access: yesSensors, 2013
DC-offset and DC-suppression are key parameters in bioelectric amplifiers. However, specific DC analyses are not often explained. Several factors influence the DC-budget: the programmable gain, the programmable cut-off frequencies for high pass filtering
Alonso Alonso   +2 more
doaj   +1 more source

Converter non‐blocking DC fault ride‐through and system fast restoration arrangements in R‐L SFCL‐equipped MMC‐M2TDC system

open access: yesIET Generation, Transmission & Distribution
Equipping a DC‐type superconducting fault current limiter (SFCL) in a modular multilevel converter‐based multi‐terminal DC (MMC‐M2TDC) system has the potential to reorganize the protection control arrangements during the DC‐side short‐circuit fault. This
Ji Yirun, Peiqian Guo, Liu Qin
doaj   +1 more source

Cooperated control strategy of generator re-dispatching and multi-HVDC modulation after ultra HVDC block

open access: yesThe Journal of Engineering, 2019
With the increase of DC project voltage level and transmission capacity, the security and stability risk caused by DC blocking is gradually increasing.
Yuling Wang   +6 more
doaj   +1 more source

Fault blocking converters for HVDC transmission : a transient behaviour comparison [PDF]

open access: yes, 2018
A thorough comparison of the transient behaviours of two state-of-the-art converters suitable for HVDC transmission is presented. The Alternate Arm and Mixed-Cell Modular Multilevel Converter topologies both have DC fault blocking capability and are ...
Finney, S.   +3 more
core  

Restart progress of fault in UHVDC after blocking

open access: yesThe Journal of Engineering, 2019
In order to reduce the impact of bipolar blocking on grid stability of restoration and restart process, a unipolar blocking caused by fires in Jin Su ultra-high voltage direct current (UHVDC) as background was taken, using real time digital simulator ...
Peng Wei   +3 more
doaj   +1 more source

Superconductivity in Ultrasmall Metallic Grains

open access: yes, 1998
We develop a theory of superconductivity in ultrasmall (nm-scale) metallic grains having a discrete electronic eigenspectrum with a mean level spacing of order of the bulk gap.
A. M. Clogston   +33 more
core   +1 more source

Recovering DC Coefficients in Block-Based DCT

open access: yesIEEE Transactions on Image Processing, 2006
It is a common approach for JPEG and MPEG encryption systems to provide higher protection for dc coefficients and less protection for ac coefficients. Some authors have employed a cryptographic encryption algorithm for the dc coefficients and left the ac coefficients to techniques based on random permutation lists which are known to be weak against ...
Uehara, Takeyuki   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy