Abstract: A novel cross-linked copolymer is disclosed. The novel cross-linked copolymer can be preferably used as an anion exchange membrane (AEM) material for fuel cells because of its excellent mechanical properties, excellent stability against hydroxide ions, and high ion conductivity and hydration.

Abstract: Provided is a device for checking the insulation status of a photovoltaic module, the device including a photovoltaic module, a bridge circuit connected to the photovoltaic module and having two first resistors connected in series and two second resistors connected in series such that the two first resistors and the two second resistors are connected in parallel, a sensor unit detecting a PV voltage of the photovoltaic module and a bridge voltage between a first node as a contact of the two first resistors and a second node as a contact of the two second resistors, a relay connected between the first node or the second node and the ground, a controller closing or opening the relay, and an calculation unit calculating an insulation resistance between the photovoltaic module and the ground based on the PV voltage and the bridge voltage.

Abstract: The present invention provides a continuous preparation method of cyclododecatriene including: preparing a reaction composition by mixing butadiene, a main catalyst, and a co-catalyst with a toluene solvent; and allowing the reaction composition to react at a reaction pressure higher than a vapor pressure of the butadiene, and a cyclododecatriene composition prepared by the continuous preparation method.

Abstract: A photovoltaic (PV) system may include a plurality of PV modules connected in series, each PV module of the plurality of PV modules being configured to harvest solar energy, and output the harvested solar energy as direct current (DC); at least one inverter connected to the plurality of PV modules, the at least one inverter configured to, receive the DC output by the plurality of PV modules, and convert the DC output into alternating current (AC); each PV module of the plurality of PV modules includes at least one capacitor configured to store the harvested solar energy; and processing circuitry configured to, monitor a charging voltage of the at least one capacitor, and control the DC output of the PV module based on the monitored charging voltage of the at least one capacitor.

Abstract: Provided is a continuous stirred tank reactor for an aldol condensation reaction and an apparatus for an aldol condensation reaction including the same, which prevent a decrease in a conversion rate due to dead zone occurrence even in the case of an increase of an installation scale, have a high output, have a significantly increased reaction surface area during the reaction, suppress layer separation between an aqueous phase and an organic phase, and have a significantly decreased average particle diameter of organic layer particles dispersed in the aqueous phase and a significantly decreased deviation thereof. In addition, a content of the catalyst used per unit yield may be significantly decreased as compared with the conventional reactor and apparatus, and costs required for wastewater treatment may be significantly reduced as compared with the conventional reactor and apparatus.

Abstract: This invention relates to a plasticizer composition that is environmentally-friendly, and yet exhibits excellent viscosity control, processability, low temperature properties, and migration resistance, and an adhesive composition including the same.

Abstract: The present invention relates to a nickel catalyst for a hydrogenation reaction and a manufacturing method therefor, and relates to a nickel catalyst added in a hydrogenation reaction for improving a color of a hydrocarbon resin. The catalyst according to the present invention has a small crystallite size and improves dispersibility, while having high nickel content, and thus can provide high activity in hydrogenation reactions.

Abstract: The polycarbonate copolymer of the present invention comprises: a unit derived from at least one type of primary dihydroxyl compound; and a unit derived from at least two types of secondary dihydroxyl compounds, wherein the polycarbonate copolymer has a pencil hardness of H or greater, when a specimen is measured according to the pencil hardness test (ISO 15184), and a glass transition temperature (Tg) of about 90° C. to about 160° C., measured according to ISO 11357. The polycarbonate copolymer has excellent heat resistance, scratch resistance, moldability, light resistance, weather resistance, transparency, mechanical strength, and the like.

Abstract: A photovoltaic (PV) generator configured to enable a gateway computer to generate a network map. The PV generator including at least one PV module including a plurality of PV cells; a wireless communication interface; a powerline coupling configured to connect to a power line; and a module level power electronic (MLPE), the MLPE including processing circuitry and memory storing computer readable instructions that, when executed by the processing circuitry, cause the MLPE to determine times of arrival (ToAs) between the MLPE and neighboring MLPEs included in neighboring PV generators, generate an adjacency list, the adjacency list including a list of the neighboring MLPEs and data corresponding to the ToAs for each of the listed neighboring MLPEs, and transmit the adjacency list to a gateway computer, enabling the gateway computer to generate a network map based on the adjacency list.

Abstract: A perovskite solar cell and a method for producing the perovskite solar cell are disclosed. The perovskite solar cell contains a laminate in which a hole transport layer, a perovskite light absorption layer, an electron transport layer, and a source electrode are sequentially laminated, wherein a transparent conductive oxide layer containing semi-conductive metal oxide is provided between an electron transport layer and a source electrode.

Abstract: Provided is an apparatus for an aldol condensation reaction having high productivity at low cost. Specifically, the apparatus for an aldol condensation reaction according to the present invention has an effect of having high productivity by preventing a drop in a conversion rate due to an increase in a residence time when increasing a facility scale, allows conditions of raising a concentration of a catalyst and a temperature, and has an effect of minimizing a content of the catalyst used at the same yield as compared with a conventional apparatus. In addition, costs required for increasing a facility scale may be minimized without adding a device such as a pump separately, and an amount of harmful wastewater produced may be minimized.

Abstract: The present invention relates to a transition metal compound for a catalyst for olefin polymerization and to a catalyst for olefin polymerization comprising the same. Specifically, the present invention relates to a transition metal compound for a catalyst for olefin polymerization in which an allyltrimethylsilane substituent is introduced into the carbon-bridged cyclopentadienyl fluorenyl backbone and to a catalyst for olefin polymerization comprising the same.

Abstract: A battery pack for an energy storage system having ease of assembling and impact absorption is disclosed. A battery pack for an energy storage system according to an embodiment of the present disclosure may include: a case in which a battery module is placed; a first elastic support part fixed to the inside of the case, allowing opposite lower ends of the battery module to be supported and seated, and including an elastic member, at one side of the lower ends, elastically supporting the battery module toward another side, and a second elastic support part supporting an upper end of the battery module and including, on one side thereof, an elastic member elastically supporting the battery module downward.

Abstract: The present invention relates to a photovoltaic power generation system comprising: a plurality of PV modules; and a plurality of power generation efficiency optimization units, which are installed to correspond to the respective plurality of PV modules one-to-one, and include inverters to convert power produced from the plurality of PV modules into AC power, and thus supply the same to a power grid through an AC line.

Abstract: The present invention relates to an inverted perovskite prepared by providing a surface-modified metal oxide nanoparticle as a coating agent for forming an electron transporting layer (or electron transport layer), and using the surface-modified metal oxide nanoparticle as a coating agent prepared in a dispersion type.

Abstract: The present invention relates to a gas diffusion layer for anion exchange membrane electrolysis which is hydrophilic and has alkali resistance, and further maintains high porosity and low electrical resistance, and a manufacturing method therefor.

Abstract: The present invention relates to a catalyst for olefin polymerization. Specifically, the present invention relates to a hybrid catalyst, which is capable of preparing a polyolefin, particularly a linear low-density polyethylene, which has excellent processability and is capable of providing a film having good mechanical and optical properties.

Abstract: Provided are a catalyst for olefin polymerization including a hybrid catalyst composition and an olefin-based polymer prepared therefrom. The hybrid metallocene catalyst allows preparation of an olefin polymer having a broad molecular weight distribution and excellent high-speed processability. In addition, an olefin-based polymer prepared in the presence of the hybrid catalyst has a broad molecular weight distribution and excellent high-speed processability.

Abstract: Provided are a method for producing a polyamide including an amide-based molecular weight controller and a polyamide produced thereby, wherein the amide-based molecular weight controller may easily control the molecular weight of the polyamide to have a narrow molecular weight distribution so as to prevent an increase in the molecular weight due to a basic intermediate produced in anionic polymerization and a side reaction generated under a high-temperature polymerization condition.

Abstract: Provided are a method for preparing an olefin-based polymer and an olefin-based polymer produced using the same. The method for preparing an olefin-based polymer according to an exemplary embodiment may adjust processability of the olefin-based polymer produced using the method by a polymerization temperature. In addition, the method for preparing an olefin-based polymer according to the exemplary embodiment may adjust drop impact strength of a finally obtained film by a polymerization temperature.