Results 81 to 90 of about 435,619 (292)

Spleen‐Targeting Biomimetic Hybrid Nanocarriers for Systemic Immune Reprogramming in Colitis: RBC Membrane Vesicle‐Fused Lipid Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
A spleen‐targeting hybrid nanoplatform (RBCMV‐LNP‐RP) harnessing erythrophagocytosis mimics senescent red blood cell clearance to achieve spleen‐specific delivery of rapamycin. This biomimetic system enables selective accumulation in splenic macrophages, orchestrating systemic immune reprogramming and promoting mucosal healing in an inflammatory bowel ...
Jun Kwon   +10 more
wiley   +1 more source

Aristarco revisitado

open access: yesRevista Brasileira de Ensino de Física
Usando as triangulações propostas pelo antigo astrônomo Aristarco, obtivemos neste trabalho o tempo total e a duração do máximo dos eclipses solares e calculamos o tempo total dos eclipses lunares. Para isso, usamos os valores do período orbital da Lua e
T.B. de Oliveira   +2 more
doaj   +1 more source

Le croissant de lune chez les Éduens et les Lingons sous le Haut-Empire

open access: yesRevue Archéologique de l’Est, 2014
The crescent of the moon is very present on the funerary steles of the Lingones and Aedui. Its two horns point upwards in a position that is uncommon and which, curiously, has never intrigued archaeologists. The position is referred to as a “cradle moon”
Yann Le Bohec
doaj   +1 more source

Prediction of the thermospheric and ionospheric responses to the 21 June 2020 annular solar eclipse

open access: yesEarth and Planetary Physics, 2020
On 21 June 2020, an annular solar eclipse will traverse the low latitudes from Africa to Southeast Asia. The highest latitude of the maximum eclipse obscuration is approximately 30°.
Tong Dang   +5 more
doaj   +1 more source

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

open access: yesAdvanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet   +5 more
wiley   +1 more source

Creation of programs for controlling programmable logic controllers using universal development tools

open access: yesInternational Journal of Advanced Studies
Background. Programmable logic controllers (PLCs) play a key role in automation systems across a variety of industries, including industrial manufacturing, transportation, and the energy sector.
Farit I. Lotfullin   +2 more
doaj   +1 more source

Green Bank Telescope Observations of the Eclipse of Pulsar "A" in the Double Pulsar Binary PSR J0737-3039

open access: yes, 2004
We report on the first Green Bank Telescope observations at 427, 820 and 1400 MHz of the newly discovered, highly inclined and relativistic double pulsar binary.
Arons, J.   +6 more
core   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Singular value decomposition based satellite attitude determination using different sensor configurations

open access: yesInternational Journal of Metrology and Quality Engineering, 2017
Satellite's attitude can be determined by using several different ways. In order to use a recursive filter to determine the attitude especially after crucial intervals for the satellite including detumbling, eclipse, etc., single-frame methods can be ...
Cilden Guler Demet, Hajiyev Chingiz
doaj   +1 more source

Deep reconditioning of batteries during DSCS 3 flight operations [PDF]

open access: yes
Deep reconditioning of batteries is defined as discharge below the 1.0 volt/cell level to a value of about 1.0 volt/battery. This type of reconditioning was investigated for use on the Defense Satellite Communications System (DSCS) spacecraft, and has ...
Jones, P. W.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy