Abstract: Compositions and methods for determining the origin location of a subterranean rock sample. Compositions include a nanoparticle tag with a fluorescent core and a polymer shell. The fluorescent core can include up-converting nanoparticles, rare earth element doped oxide, long persistent fluorescent materials, or encapsulated lanthanide complexes. Methods include mixing a nanoparticle tag into a fluid, flowing the fluid through a work string into a subterranean formation, recovering subterranean rock samples from the subterranean formation, and determining an origin location of the subterranean rock sample by detecting the presence of the nanoparticle tag on the sample.

Abstract: A method of preparing a nanocomposite fiber comprising suspending carbon powder comprising graphene flakes in a carrier fluid. A solid polymer material is added to the carrier fluid having the carbon powder suspended therein to create a mixture. The mixture is heated and the solid polymer material is at least partially dissolved within the carrier fluid having the carbon powder suspended therein. The carrier fluid is removed from the mixture, forming the polymer into a fiber carrying the graphene flakes.

Abstract: The present specification provides a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device.

Abstract: Provided is a compound of Chemical Formula 1: wherein: X1 to X6 are each independently CH or N, provided that at least one of X1 to X6 is N; Ar1 to Ar4 are each independently a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, and S, provided that at least one of Ar1 to Ar4 is any one of: R2 is hydrogen, deuterium, or a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; each R3 is independently hydrogen, deuterium, or a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O, and S; each R1 is independently hydrogen, deuterium, or a substituted or unsubstituted: C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and n is an integer of 0 to 8, and organic light emitting devices including the same.

Abstract: A concrete slab on ground system includes a first slab portion and a second slab portion. The first slab portion is disposed on a ground substrate and includes geopolymer cement (GC) concrete. The second slab portion is disposed on the first slab portion and consists of Portland cement (PC) concrete. The first slab portion may be mixed in-situ and left in an unfinished state such that only the top or exposed surface of the second slab portion need be finished.

Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.

Abstract: The present invention relates to a method for modifying the water permeability of a subterranean formation which comprises oil, said method comprising at least the following steps: Preparing an injection fluid from a dispersion of a hydrophilic phase in a lipophilic phase, with water or brine, the dispersion comprising: a hydrophilic phase comprising at least one linear (co)polymer E, a lipophilic phase, at least one interface polymer composed of at least one monomer of formula (I): Injecting the injection fluid into the subterranean formation, comprising a linear (co)polymer E concentration, such that when released and in contact with water, the viscosity of the injection fluid is greater than the viscosity of the oil in the formation.

Abstract: The invention relates to a construction panel with high resistance to fire and to a method for producing a construction panel with high resistance to fire.

Abstract: The present invention relates to a binder composition comprising a) component A comprising polymer(s) A1 having primary and/or secondary amino groups wherein polymer(s) A1 has(have) a primary and secondary amine group nitrogen content (NCps) of at least 1 wt.-% and b) component B comprising hydroxyacetone.

Abstract: The present invention relates to a high heat-resistant/oxidation-resistant/flame retardant-non-flammable liquid ceramic coating film for protecting an exterior of an apparatus in an extreme environment. Provided are a method of forming a high heat-resistant coating film including: (a) preparing a liquid ceramic filling agent by mixing a ceramic filler including iron (III) oxide (Fe3O4) powder, a diluent, and an inorganic nanosol; (b) applying the liquid ceramic filling agent to at least one surface of a substrate to form a coating film; and (c) curing the coating film by drying the substrate, and a high heat-resistant coating film prepared thereby.

Abstract: Proposed are a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.

Abstract: A solvent-removing apparatus according to an embodiment includes a tank body accommodating an emulsion including first source material in a continuous phase and second source material in a dispersed phase, a fluid supply unit for supplying fluid into the tank body to cause the emulsion to circulate, and a discharge unit for discharging the gas in the tank body to the outside.

Abstract: A device and method for absorbing electromagnetic waves can include a honeycomb sheet formed by a plurality of interconnected hexagon cells arranged in rows. The hexagon cells are made up of sidewalls, each sidewall formed by two surfaces that converge at a top of the sidewall and diverge from the top to a bottom of the sidewall such that a thickness of the sidewalls increases from top to bottom and an angle forms between the two surfaces at the top of the sidewall. In an example, the angle is about 8 degrees. The honeycomb sheet can be coated with a magnetic, composite coating to increase electromagnetic shielding. An example coating includes magnetic multi-granular nanoclusters (MGNC) and multi-walled carbon nanotubes (MWCNT). A base layer can be attached to the honeycomb sheet for mechanical stability and additional absorption. The device is suitable for radar absorbing materials (RAM) for aerospace and military applications.

Abstract: A highly-conformal, pliable thin electromagnetic (EM) skin for altering at least one electromagnetic property of a surface includes a pliable thin film, and sub-wavelength elements incorporated into and/or on the pliable thin film which are smaller in scale than the wavelengths of electromagnetic radiation they are intended to influence. The electromagnetic skin readily conforms to contours of a surface to which it attaches or otherwise adheres to. Such electromagnetic skin can be used to cover various surface and platforms on equipment, walls, vehicles, and aircraft to change the electromagnetic properties of such surfaces to achieve certain functions that are not achievable with simple ground plane surfaces. The EM skin may be judiciously configured to alter at least one electromagnetic property of the surface by blocking, absorbing, enhancing, and/or bending waves of electromagnetic radiation.

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from one another. Two compounds in the host included in the emission layer may have different HOMO and LUMO energy levels and may form an exciplex, and a difference between a HOMO energy level and a LUMO energy level of the exciplex (?Eexciplex) may be greater than a difference between a HOMO energy level and a LUMO energy level of the dopant (?Edopant).

Abstract: A nanoparticle composition is provided. The nanoparticle composition includes a plurality of nanoparticles, each nanoparticle of the plurality having a core including tantalum oxide, and a covalent coating covalently bound to the core. The covalent coating includes a surface modifier selected from the group consisting of (3-aminopropyl)trimethoxy silane (APTMS), (3-aminopropyl)triethoxy silane (APTES), APTMS-methoxy-poly(ethylene-glycol)-succinimidyl glutarate (APTMS-m-PEG-glutarate), APTES-methoxy-poly(ethylene-glycol)-succinimidyl glutarate (APTES-m-PEG-glutarate), 2-[methoxy (polyethyleneoxy)-9-12-propyl] trimethoxysilane (PEG-Silane), hexadecyltriethoxy silane, and combinations thereof. Methods of synthesizing and using the nanoparticle composition are also provided.

Abstract: A coating composition includes (a) a melamine resin having imino and methylol functional groups that together comprise 30 mole % or greater of the total functionality of the melamine resin; and (b) at least one polymer reactive with (a) that is obtained from components including polytetrahydrofuran and a carboxylic acid or anhydride thereof. The polytetrahydrofuran includes greater than 20 weight % of the components that form the polymer (b) and the carboxylic acid or anhydride thereof includes greater than 5 weight % of the components that form the polymer (b). The polymer (b) has an acid value of at least 15 based on the total resin solids of the polymer (b).

Abstract: Luminescent concrete compositions containing cement, fine aggregates such as sand, and a phosphor such as strontium aluminate. Glow-in-the-dark concrete products made therefrom and methods of producing such concrete products are also specified. The glow-in-the-dark concrete products demonstrate good mechanical strength (e.g. compressive strength) and skid resistance. The addition of phosphorescent strontium aluminate provides luminance that persists for up to 10 hours to the concrete products.

Abstract: A waterproofing system including a functional layer S1 including 10-80 wt.-% of at least one thermoplastic polymer P1 and 10-80 wt.-% of at least one solid particulate filler F, wherein the surface of the functional layer S1 has an Auto-correlation length of waviness W(Sal) of at least 50 ?m. Further, a method for producing a waterproofing system and to the use of a mechanical surface treatment step to increase the waviness factor, determined as the ratio of the Root mean square roughness of waviness W(Sq) to the square of the Auto-correlation length of waviness W(Sal), of a surface of a functional layer S1.

Abstract: The invention relates to a polymer or oligomer comprising a) An oligomeric or polymeric core comprising carbon atoms and at least one of oxygen atoms and nitrogen atoms, and b) at least three hydrocarbyl terminal and/or pending groups having 12 to 100 carbon atoms, wherein the hydrocarbyl groups are linked to the core via c) a linking moiety comprising i) a urethane group and ii) a group selected from urethane group, urea group, and biuret group.