Abstract: The present subject matter provides a method of manufacturing an electrode for a fuel cell, in which nanocarbons are grown on the surface of a substrate for a fuel cell using a process of simultaneously gasifying a platinum precursor and a carbon precursor, and simultaneously core-shell-structured platinum-carbon composite catalyst particles are highly dispersed between nanocarbons The subject matter also provides an electrode for a fuel cell, manufactured by the method. This method is advantageous in that an electrode for a fuel cell having remarkably improved electrochemical performance and durability can be manufactured by a simple process.

Abstract: A method of preparing a fuel cell electrode catalyst by preparing a platinum-carbon core-shell composite, which has a platinum nanoparticle core and a graphene carbon shell, using a simultaneous evaporation process, a method for preparing a fuel cell electrode comprising the catalyst prepared thereby, and a fuel cell comprising the same. A fuel cell comprising an electrode catalyst consisting of the core-shell composite prepared by simultaneously evaporating the platinum precursor and the organic precursor can have high performance and high durability, because the platinum particles are not agglomerated or detached and corroded even under severe conditions, including high-temperature, long use term, acidic and alkaline conditions.

Abstract: A method for spectrum sensing is described comprising receiving a signal using a plurality of receive antennas; forming a set of received signals including the received signal of each antenna; determining a cyclic auto-correlation of the set of received signals; estimating, for each receive antenna, channel state information of the radio channel via which the receive antenna receives the signal based on the determined cyclic auto-correlation; performing maximum ratio combining of the received signal samples based on the estimated channel state information; determining a measure of the cyclostationarity of the received signal based on the result of the maximum ratio combining; and performing cyclostationarity detection spectrum sensing based on the determined measure of the cyclostationarity of the received signal.

Abstract: A method of preparing a metal-carbon composite of a core-shell structure through simultaneous vaporization, in which a metal particle constitutes a core and carbon constitutes a shell, with the metal-carbon composite prepared in the form of powder and supported on a supporter, and a metal-carbon composite of a core-shell structure prepared by the same. In these methods, the metal-carbon composite of the core-shell structure is prepared through simultaneous vaporization of metal and carbon precursors and does not require separate post-processing. Further, in the metal-carbon composite of the core-shell structure prepared by these methods, a carbon shell covers a portion or the entirety of a surface of a metal core, whereby the metal particles can be prevented from suffering agglomeration, separation or corrosion when subjected to harsh process conditions at high temperatures for long durations under strong acid and alkali conditions, thereby providing high performance and high durability.

Abstract: A composite synthesis method and apparatus, a vaporizer for the composite synthesis apparatus, a vaporizer heater and a composite. In the composite synthesis apparatus using simultaneous vaporization, two or more vaporizers are heated by heaters such that samples vaporized by the vaporizers are supplied into a reactor to synthesize a composite. The apparatus and method may prepare multiple-metal or metal-carbon heterogeneous composites, and may be applied to various metal- and carbon-based adsorbents, absorbents, gas/liquid separation membranes and various catalyst processes. Further, the composite may be applied to various industrial fields through change in metal components or carbon structures.

Abstract: An organic/inorganic hybrid composite proton exchange membrane is provided. The proton exchange membrane includes an inorganic material of about 0.5-30 parts by weight and an organic material of about 99.5-70 parts by weight per 100 parts by weight of the proton exchange membrane. A surface area of the inorganic material is about 50-3000 m2/g. The organic material includes a sulfonated polymer or a phosphoric acid doped polymer.

Abstract: An injection mold includes a mold base defined with a sliding slot, a mold core detachably mounted in the mold base, and a plurality of securing devices. The mold base includes an upper mold base and a lower mold base. The mold core includes an upper mold core and a lower mold core detachably connected with the upper mold core. The mold core defines a slider. The slider slides in the sliding slot of the mold base to move the mold core in or out of the mold base. The upper mold core defines a first securing groove, and the lower mold core defines a second securing groove. The securing devices are mounted in the upper mold base and the lower mold base. The securing devices secure the first and the second securing grooves, allowing the mold core to attach to the mold base.

Abstract: A composite proton exchange membrane is made up of dispersed organized graphene in ion conducting polymer as a fuel barrier material. The composite proton exchange membrane includes an inorganic material of 0.001-10 wt % and an organic material of 99.999-90 wt %. The inorganic material is a graphene derivative with two-dimensional structure. The organic material includes a polymer material with sulfonic acid group.

Abstract: A hearing instrument to be worn behind or in the auricle, has an external earpiece, worn in the auditory canal and is connected by an earpiece tube to the hearing instrument housing. The hearing instrument has a flexible adjustability of the earpiece tube connection both in length and in rotational position. The hearing system has a housing, an earpiece, and an earpiece tube connected to the housing and the earpiece, with an earpiece tube connector connecting a housing-side segment of the earpiece tube to an earpiece-side segment of the earpiece tube. The earpiece tube connector forms an electrically conducting connection that is mechanically stable in respect of release and allows variable and reversible longitudinal displacement and rotation of the two segments in relation to one another. The earpiece tube connector, by the housing and earpiece being connected is therefore disposed in-line in the earpiece tube. It establishes both the electrical and the mechanical connection between housing and earpiece.

Abstract: A light source module includes a substrate, a first LED package and a second LED package. The first and second LED packages are disposed on the substrate. The first LED package includes a first blue LED chip and a first phosphor. The first blue LED chip emits light in the range of the wavelength for blue light. The first phosphor is used to convert the wavelength of a portion of the light emitted from the first blue LED chip. The second LED package includes a second blue LED chip and a second phosphor. The second blue LED chip emits light in the range of the wavelength for blue light. The second phosphor is used to convert the wavelength of a portion of the light emitted from the second blue LED chip. The wavelength associated with the second phosphor is greater than that associated with the first phosphor.

Abstract: According to embodiments of the present invention, a method for identifying one or more frequency bands in a received signal. The method comprising: calculating a wavelet product of the received signal; setting a threshold for local maxima of the wavelet product; and detecting one or more edges in the received signal based on local maxima of the wavelet product which are greater than the threshold to identify one or more frequency bands in the received signal. A corresponding apparatus and computer program product are also provided. Embodiments also relate to a method for evaluating performance of a method for identifying one or more frequency bands in a received signal. A corresponding apparatus and computer program product are also provided.

Abstract: Provided is a biodegradable resin including a urethane bond generated by a reaction of a polyester polymer with a polyvalent isocyanate used as a chain extender. Particularly, provided is a method of preparing a biodegradable resin using a limited amount of the chain extender and having excellent properties, and a biodegradable resin in which nitrogen content is controlled. Therefore, the biodegradable resin which can reduce the use of a harmful component to the human body and environment in the process of preparing the biodegradable resin and can be safely used for packing materials for food or medicine is provided.

Abstract: A measurement apparatus includes a lamp mount including a first mount and a second mount. The first mount has a first cavity to mount an observation module. The second mount has a second cavity to mount an image capture module. The measurement apparatus further includes a plurality of light modules mounted on an undersurface of the lamp mount. The second mount is disposed with an included angle relative to a first axis of the first cavity so that a second axis of the second cavity and the first axis converge on a point. The undersurface of the lamp mount is concave so that light from the light modules tilts toward the first axis, and the light and the first axis also converge on the point.

Abstract: In a method for verifying manufacturing accuracy, a point cloud of a workpiece is read. A first determined point is determined according to the first point of the point cloud and a second determined point is determined according to the final point of the point cloud. A first line, a second line, and a third line are all located by respectively connecting the first point and the first determined point, the final point and the second determined point, and the first determined point and the second determined point. Qualification of the workpiece is determined by measuring a first angle of the first line and the third line, a second angle of the second line and the third line, a first distance between the first determined point and the second line, and a second distance between the second determined point and the first line.

Abstract: Novel proteins are provided herein, including proteins capable of catalyzing the acetylation of glyphosate and other structurally related proteins. Also provided are novel polynucleotides capable of encoding these proteins, compositions that include one or more of these novel proteins and/or polynucleotides, recombinant cells and transgenic plants comprising these novel compounds, diversification methods involving the novel compounds, and methods of using the compounds. Some of the novel methods and compounds provided herein can be used to render an organism, such as a plant, resistant to glyphosate.

Abstract: A method for spectrum sensing is described comprising receiving a signal using a plurality of receive antennas; forming a set of received signals including the received signal of each antenna; determining a cyclic auto-correlation of the set of received signals; estimating, for each receive antenna, channel state information of the radio channel via which the receive antenna receives the signal based on the determined cyclic auto-correlation; performing maximum ratio combining of the received signal samples based on the estimated channel state information; determining a measure of the cyclostationarity of the received signal based on the result of the maximum ratio combining; and performing cyclostationarity detection spectrum sensing based on the determined measure of the cyclostationarity of the received signal.

Abstract: An injection mold includes a mold base defined with a sliding slot, a mold core detachably mounted in the mold base, and a plurality of securing devices. The mold base includes an upper mold base and a lower mold base. The mold core includes an upper mold core and a lower mold core detachably connected with the upper mold core. The mold core defines a slider. The slider slides in the sliding slot of the mold base to move the mold core in or out of the mold base. The upper mold core defines a first securing groove, and the lower mold core defines a second securing groove. The securing devices are mounted in the upper mold base and the lower mold base. The securing devices secure the first and the second securing grooves, allowing the mold core to attach to the mold base.

Abstract: The present invention provides a controller for a pendulum type wave-power generating apparatus. Electric power produced by wave-power generation has been pointed out as being of low efficiency and more expensive than wind-power generation. To overcome the above problems, the present invention uses resonance and impedance matching of the sea waves, thus making it possible to markedly enhance the efficiency of wave-power generation. The present invention does not use a wave-height meter which is generally expensive and controls the generating apparatus in response to variation of the conditions of the sea, thus automatically maintaining the resonance and impedance matching operation, thereby making high-efficiency operation possible. As a result, the cost of the wave-power generation can be reduced, so that the wave-power generation can be widely commercialized.

Abstract: The present disclosure provides targeting peptides and vectors containing a sequence that encodes targeting peptides that deliver agents to the brain.

Abstract: Novel proteins are provided herein, including proteins capable of catalyzing the acetylation of glyphosate and other structurally related proteins. Also provided are novel polynucleotides capable of encoding these proteins, compositions that include one or more of these novel proteins and/or polynucleotides, recombinant cells and transgenic plants comprising these novel compounds, diversification methods involving the novel compounds, and methods of using the compounds. Some of the novel methods and compounds provided herein can be used to render an organism, such as a plant, resistant to glyphosate.