Results 101 to 110 of about 3,626 (176)

Xanthones from Calophyllum inophyllum [PDF]

, 2017
Repeated separation and purification of fractions from the crude chloroform extract of Calophyllum inophyllum via column chromatography afforded five known xanthone caloxanthones A, B, C, macluraxanthone and pyranojacareubin.
Daud, Shaari, Ee, Gwendoline Cheng Lian, Karunakaran, Thiruventhan, Lee, Kar Wei   +3 more
core  

Low Temperature Post Radiation Polymerization of Tetrafluoroethylene in the Presence of the Graphene 3D Material [PDF]

, 2013
It was found that irradiation by γ-rays at the liquid nitrogen temperature of a mixture of C2F4 with the grapheme 3D material obtained by explosive exfoliation of graphite oxide gives a composite in which the concentration of polytetrafluoroethylene is ...
Baskakov, S.A., Kichigina, G.A., Kiryukhin, D.P., Kushch, P.P., Michtchenko, A., Shulga, Y.M.   +5 more
core  

An End-to-End Underwater Acoustic Target Recognition Model Based on One-Dimensional Convolution and Transformer

Journal of Marine Science and Engineering
Underwater acoustic target recognition (UATR) is crucial for defense and ocean environment monitoring. Although traditional methods and deep learning approaches based on time–frequency domain features have achieved high recognition rates in certain tasks,
Kang Yang, Biao Wang, Zide Fang, Banggui Cai   +3 more
doaj   +1 more source

Prise en charge domiciliaire d'une personne atteinte de démence de type d'Alzheimer: comment l'infirmière pourrait-elle accompagner le proche aidant dans l'acquisition et le développement de compétences : travail de Bachelor [PDF]

, 2017
Contexte : Aujourd’hui, les proches aidants sont en première ligne dans la prise en charge de personnes âgées atteintes de la maladie d’Alzheimer et vivant à domicile.
De Mita, Lola, Dupont, Aurélie,, Lalive D'epinay Raemy, Séverine   +2 more
core  

A Titan exploration study: Science, technology and mission planning options, volume 1 [PDF]

Mission concepts and technology advancements that can be used in the exploration of the outer planet satellites were examined. Titan, the seventh satellite of Saturn was selected as the target of interest.
Edsinger, L. E., Manning, L. A., Sadin, S. R., Swenson, B. L., Tindle, E. L., Weissman, P. R.   +5 more
core   +1 more source

Development of Novel Phase-Change Materials Derived from Methoxy Polyethylene Glycol and Aromatic Acyl Chlorides. [PDF]

Polymers (Basel), 2023
Angel-López A, Norambuena Á, Arriaza-Echanes C, Terraza CA, Tundidor-Camba A, Coll D, Ortiz PA.   +6 more
europepmc   +1 more source

A novel immunoglobulin G monolayer silver bio-nanocomposite [PDF]

, 2015

core   +1 more source

Development and application of operational techniques for the inventory and monitoring of resources and uses for the Texas coastal zone [PDF]

The author has identified the following significant results. The most significant ADP result was the modification of the DAM package to produce classified printouts, scaled and registered to U.S.G.S., 71/2 minute topographic maps from LARSYS-type ...
Clements, G., Finley, R., Harwood, P., Jones, R., Lodwick, L., Marphy, D., Mcculloch, S.   +6 more
core   +1 more source

Power processor design considerations for a solar electric propulsion spacecraft [PDF]

Propulsion power processor design options are described. The propulsion power processor generated the regulated dc voltages and currents from a solar array source of a solar electric propelled spacecraft.
Costogue, E. N., Gardner, J. A.
core   +1 more source

Mission analysis data for inclined geosynchronous orbits, part 1 [PDF]

Data needed for preliminary design of inclined geosynchronous missions are provided. The inertial and Earth fixed coordinate systems are described, as well as orbit parameters and elements. The complete family of geosynchronous orbits is discussed. It is
Graf, O. F., Jr., Wang, K. C.
core   +1 more source