Abstract: The disclosed computer-implemented method may include systems for generating personalized avatar reactions during live video broadcasts. For example, the systems and methods described herein can access a social networking system user's profile to identify an avatar associated with the social networking system user. The systems and methods can generate an avatar reaction by modifying one or more features of the avatar based on a corresponding emoticon reaction. Once generated, the social networking system user can select the avatar reaction for addition to an ephemeral reaction stream associated with a live video broadcast. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A method of treating a sleep disorder based on data and an apparatus for performing the method includes determining, by a sleep disorder treatment apparatus, sleep quality. The method and apparatus further includes determining, by the sleep disorder treatment apparatus, user compliance with a first recommended time in bed (R-TIB). The method an apparatus further includes determining, by the sleep disorder treatment apparatus, a second R-TIB on the basis of the sleep quality and the user compliance. The first R-TIB is a sleep time recommended to the user earlier, and the second R-TIB is a sleep time recommended to the user later.

Abstract: A method of preventing a fall risk and an apparatus for performing the method includes receiving, by a fall prevention apparatus, gait data, generating, by the fall prevention apparatus, gait analysis data on the basis of analysis of the gait data, and generating, by the fall prevention apparatus, fall prevention data on the basis of the gait analysis data.

Abstract: In some examples, a fuel cell comprising a first electrochemical cell including a first anode and a first cathode; a second electrochemical cell including a second anode and a second cathode; and an interconnect configured to conduct a flow of electrons from the first anode to the second cathode, wherein the interconnect comprises a first portion and a second portion, wherein the first portion is closer to the anode than the second portion, and the second portion is closer to the cathode than the first portion, wherein the first portion comprises one or more of doped ceria, doped lanthanum chromite, and doped yttrium chromite, and wherein the second portion comprises one or more of a Co—Mn spinel and a ABO3 perovskite.

Abstract: In some embodiments, a solid oxide fuel cell comprising an anode, an electrolyte, cathode barrier layer, a nickelate composite cathode separated from the electrolyte by the cathode barrier layer, and a cathode current collector layer is provided. The nickelate composite cathode includes a nickelate compound and second oxide material, which may be an ion conductor. The composite may further comprise a third oxide material. The composite may have the general formula (LnuM1vM2s)n+1(Ni1-tNt)nO3n+1-A1-xBxOy-CwDzCe(1-w-z)O2-?, wherein A and B may be rare earth metals excluding ceria.

Abstract: In some embodiments, a solid oxide fuel cell comprising an anode, an electrolyte, cathode barrier layer, a nickelate composite cathode separated from the electrolyte by the cathode barrier layer, and a cathode current collector layer is provided. The nickelate composite cathode includes a nickelate compound and second oxide material, which may be an ion conductor. The composite may further comprise a third oxide material. The composite may have the general formula (LnuM1vM2s)n+1(Ni1-tNt)nO3n+1-A1-xBxOy—CwDzCe(1-w-z)O2-?, wherein A and B may be rare earth metals excluding ceria.

Abstract: In some examples, a fuel cell comprising an anode; an electrolyte; cathode barrier layer; and a nickelate composite cathode separated from the electrolyte by the cathode barrier layer; and a cathode current collector layer. The nickelate composite cathode includes a nickelate compound and an ionic conductive material, and the nickelate compound comprises at least one of Pr2NiO4, Nd2NiO4, (PruNdv)2NiO4, (PruNdv)3Ni2O7, (PruNdv)4Ni3O10, or (PruNdvMw)2NiO4, where M is an alkaline earth metal doped on an A—site of Pr and Nd. The ionic conductive material comprises a first co-doped ceria with a general formula of (AxBy)Ce1?x?yO2, where A and B of the first co-doped ceria are rare earth metals. The cathode barrier layer comprises a second co-doped ceria with a general formula (AxBy)Ce1?x?yO2, where at least one of A or B of the second co-doped ceria is Pr or Nd.

Abstract: In some examples, a fuel cell including an anode; electrolyte; and cathode separated from the anode by the electrolyte, wherein the cathode includes a Pr-nickelate based material with (Pr1-xAx)n+1(Ni1-yBy)nO3n+1+? as a general formula, where n is 1 as an integer, A is an A-site dopant including of a metal of a group formed by one or more lanthanides, and B is a B-site dopant including of a metal of a group formed by one or more transition metals, wherein the A and B-site dopants are provided such that there is an increase in phase-stability and reduction in degradation of the Pr-nickelate based material, and A is at least one metal cation of lanthanides, La, Nd, Sm, or Gd, B is at least one metal cation of transition metals, Cu, Co, Mn, Zn, or Cr, where: 0<x<1, and 0<y?0.4.

Abstract: In some examples, a fuel cell including a first electrochemical cell; a second electrochemical cell; an interconnect configured to conduct a flow of electrons from the first electrochemical cell to the second electrochemical cell; and a dense oxygen barrier layer separating the interconnect from one of a cathode or a cathode conductor layer adjacent the cathode, wherein the dense barrier layer is formed of a ceramic material exhibiting a low porosity and a high conductivity such that the dense oxygen barrier layer reduces at least one precious metal loss from the interconnect or oxidation of nickel metal in the interconnect.

Abstract: In some examples, a fuel cell comprising an anode; an electrolyte; cathode barrier layer; and a nickelate composite cathode separated from the electrolyte by the cathode barrier layer; and a cathode current collector layer. The nickelate composite cathode includes a nickelate compound and an ionic conductive material, and the nickelate compound comprises at least one of Pr2NiO4, Nd2NiO4, (PruNdv)2NiO4, (PruNdv)3Ni2O7, (PruNdv)4Ni3O10, or (PruNdvMw)2NiO4, where M is an alkaline earth metal doped on an A—site of Pr and Nd. The ionic conductive material comprises a first co-doped ceria with a general formula of (AxBy)Ce1-x-yO2, where A and B of the first co-doped ceria are rare earth metals. The cathode barrier layer comprises a second co-doped ceria with a general formula (AxBy)Ce1-x-yO2, where at least one of A or B of the second co-doped ceria is Pr or Nd.

Abstract: In some embodiments, a solid oxide fuel cell comprising an anode, an electrolyte, cathode barrier layer, a nickelate composite cathode separated from the electrolyte by the cathode barrier layer, and a cathode current collector layer is provided. The nickelate composite cathode includes a nickelate compound and second oxide material, which may be an ion conductor. The composite may further comprise a third oxide material. The composite may have the general formula (LnuM1vM2s)n+1(Ni1-tNt)nO3n+1-A1-xBxOy-CwDzCe(1-w-z)O2-?, wherein A and B may be rare earth metals excluding ceria.

Abstract: In some embodiments, a solid oxide fuel cell comprising an anode, an electrolyte, cathode barrier layer, a nickelate composite cathode separated from the electrolyte by the cathode barrier layer, and a cathode current collector layer is provided. The nickelate composite cathode includes a nickelate compound and second oxide material, which may be an ion conductor. The composite may further comprise a third oxide material. The composite may have the general formula (LnuM1vM2s)n+1(Ni1-tNt)nO3n+1-A1-xBxOy—CwDzCe(1-w-z)O2-?, wherein A and B may be rare earth metals excluding ceria.

Abstract: In some examples, a fuel cell including an anode; electrolyte; and cathode separated from the anode by the electrolyte, wherein the cathode includes a Pr-nickelate based material with (Pr1-xAx)n+1(Ni1-yBy)nO3n+1+? as a general formula, where n is 1 as an integer, A is an A-site dopant including of a metal of a group formed by one or more lanthanides, and B is a B-site dopant including of a metal of a group formed by one or more transition metals, wherein the A and B-site dopants are provided such that there is an increase in phase-stability and reduction in degradation of the Pr-nickelate based material, and A is at least one metal cation of lanthanides, La, Nd, Sm, or Gd, B is at least one metal cation of transition metals, Cu, Co, Mn, Zn, or Cr, where: 0<x<1, and 0<y?0.4.

Abstract: In some examples, a fuel cell comprising a first electrochemical cell including a first anode and a first cathode; a second electrochemical cell including a second anode and a second cathode; and an interconnect configured to conduct a flow of electrons from the first anode to the second cathode, wherein the interconnect comprises a first portion and a second portion, wherein the first portion is closer to the anode than the second portion, and the second portion is closer to the cathode than the first portion, wherein the first portion comprises one or more of doped ceria, doped lanthanum chromite, and doped yttrium chromite, and wherein the second portion comprises one or more of a Co—Mn spinel and a ABO3 perovskite.

Abstract: The present invention provides a hybrid composite sealant, as a sealing material for a planar type solid oxide fuel cell stack, having a matrix of a glass composition, wherein a surface layer reinforced with platelet reinforcement particles is laminated on either one or both surfaces of an inner layer reinforced with fibrous reinforcement particles. Accordingly, by applying the composite sealant of the present invention to the solid oxide fuel cell stack, excellent gas-tightness of the stack can be obtained even under low coupling pressure, thermal cycling durability can be enhanced due to low coupling strength with a contact surface of an object to be sealed, stack disassembly and maintenance can be facilitated when parts within the stack are disabled, and stack stability as well as stack performance can be maintained under a pressurized operation condition where pressure differentials between the inside and outside of the stack reach to 5 atmospheric pressures (0.5 MPa).

Abstract: The present invention provides electrode-electrolyte composite particles for a fuel cell, which have either electrode material particles uniformly dispersed around electrolyte material particles or electrolyte material particles uniformly dispersed around electrode material particles, to enhance the electrode performance characteristics and electrode/electrolyte bonding force, as well as thermal, mechanical and electrochemical properties of the fuel cell, in a simple method without using expensive starting materials and a high temperature process.

Abstract: Disclosed is a paste for screen printing which is used in the fabrication of an anode functional layer, an electrolyte layer, or a cathode layer of an anode-supported solid oxide fuel cell. The paste contains a raw material powder, ethyl cellulose alpha terpineol, and an alcoholic solvent in which a thermosetting binder is soluble. Also provided is a method of fabricating an anode-supported solid oxide fuel cell using the paste. Thus, a reliable high-performance, large area solid oxide fuel cell that can be economically and efficiently fabricated is provided.

Abstract: A composite sealant of the present invention increases a fracture toughness of glass which has an excellent gas tightness but has a low fracture resistance, to enhance the thermal cycle stability while maintaining the gas tightness of a stack. For this, alpha-alumina fiber particles, alpha-alumina granular particles, and metallic particles are mixed and added to a glass matrix for remarkably increasing the fracture toughness from 0.5 MPa·m05 to 6 MPa·m°'5 through the multiple effects of crack deflection and crack bridging by the fiber and granular particles, and effects of crack arresting and plastic deformation by the metallic particles.

Abstract: The present invention provides a hybrid composite sealant, as a sealing material for a planar type solid oxide fuel cell stack, having a matrix of a glass composition, wherein a surface layer reinforced with platelet reinforcement particles is laminated on either one or both surfaces of an inner layer reinforced with fibrous reinforcement particles. Accordingly, by applying the composite sealant of the present invention to the solid oxide fuel cell stack, excellent gas-tightness of the stack can be obtained even under low coupling pressure, thermal cycling durability can be enhanced due to low coupling strength with a contact surface of an object to be sealed, stack disassembly and maintenance can be facilitated when parts within the stack are disabled, and stack stability as well as stack performance can be maintained under a pressurized operation condition where pressure differentials between the inside and outside of the stack reach to 5 atmospheric pressures (0.5 MPa).

Abstract: The present invention provides electrode-electrolyte composite particles for a fuel cell, which have either electrode material particles uniformly dispersed around electrolyte material particles or electrolyte material particles uniformly dispersed around electrode material particles, to enhance the electrode performance characteristics and electrode/electrolyte bonding force, as well as thermal, mechanical and electrochemical properties of the fuel cell, in a simple method without using expensive starting materials and a high temperature process.