Abstract:
The present invention relates to a composition for preventing or treating osteoporosis which comprises an ibandronic acid, or a pharmaceutically acceptable salt thereof, or a hydrate thereof, and vitamin D. The present invention relates to a composition for preventing or treating osteoporosis which has uniform medicinal effects by minimizing the differences in physical properties between ibandronic acid, or the pharmaceutically acceptable salt thereof, or the hydrate thereof, and vitamin D.
Abstract:
Disclosed herein is an electric generating system using a solar cell, including: a DC/DC converter that converts output voltage generated from a solar cell into DC voltage and has a converter switching device; a snubber device that has a snubber switch clamping voltage applied to the converter switching device; and a control device that detects the voltage applied to the converter switching device and controls an operation of the snubber switch according to a detected voltage level applied to the converter switching device, thereby increasing the efficiency of the electric generating system using a solar cell while reducing switching loss and conduction loss.
Abstract:
Disclosed is a molten carbonate fuel cell comprising a reinforced lithium aluminate matrix, a cathode, an anode, a cathode frame channel and an anode frame channel, wherein at least one of the cathode frame channel and the anode frame channel is filled with a lithium source. Disclosed also are a method for producing the same, and a method for supplying a lithium source. The molten carbonate fuel cell in which a lithium source is supplied to an electrode has high mechanical strength and maintains stability of electrolyte to allow long-term operation.
Abstract:
A facet extraction LED improved in light extraction efficiency and a manufacturing method thereof. A substrate is provided. A light emitting part includes an n-type semiconductor layer, an active layer and a p-type semiconductor layer sequentially stacked on the substrate. A p-electrode and an n-electrode are connected to the p-type semiconductor layer and the n-type semiconductor layer, respectively. The p- and n-electrodes are formed on the same side of the LED. The light emitting part is structured as a ring.
Abstract:
There is provided a photovoltaic and fuel cell hybrid generation system using dual converters and a single inverter and a method of controlling the same. A photovoltaic and fuel cell (PV-FC) hybrid generation system according to an aspect of the invention may include: a PV DC/DC converter unit converting a PV output voltage into a predetermined voltage; an FC DC/DC converter unit converting an FC output voltage into a predetermined voltage; a DC link unit commonly connecting an output terminal of the PV DC/DC converter unit and an output terminal of the FC DC/DC converter unit, and linking the converted PV output voltage from the PV DC/DC converter unit to the converted FC output voltage from the FC DC/DC converter unit to thereby generate a DC voltage; and a DC/AC inverter unit converting the DC voltage from the DC link unit into a predetermined AC voltage.
Abstract translation:提供了一种使用双转换器和单个逆变器的光伏和燃料电池混合发电系统及其控制方法。 根据本发明的一个方面的光伏和燃料电池(PV-FC)混合发电系统可以包括:将PV输出电压转换成预定电压的PV DC / DC转换器单元; 将FC输出电压转换成预定电压的FC DC / DC转换器单元; 通常连接PV DC / DC转换器单元的输出端子和FC DC / DC转换器单元的输出端子的DC链路单元,以及将来自PV DC / DC转换器单元的转换的PV输出电压连接到转换的FC输出 电压从FC DC / DC转换器单元产生直流电压; 以及DC / AC逆变器单元,将来自DC链路单元的DC电压转换为预定的AC电压。
Abstract:
A facet extraction LED improved in light extraction efficiency and a manufacturing method thereof. A substrate is provided. A light emitting part includes an n-type semiconductor layer, an active layer and a p-type semiconductor layer sequentially stacked on the substrate. A p-electrode and an n-electrode are connected to the p-type semiconductor layer and the n-type semiconductor layer, respectively. The p- and n-electrodes are formed on the same side of the LED. The light emitting part is structured as a ring.
Abstract:
A stack fastening device includes a base, on an upper surface of which a stack is loaded, a compression plate, which has a flat configuration and is placed over the stack to press the stack, and a plurality of vertical beams, which are installed on the base to extend vertically so that the upper end portion of the beams projects out through the edge of the compression plate, A thread is formed in an upper end portion of each vertical beam, nuts are threadedly coupled to the thread such that the nuts can be tightened against upper and lower surfaces of the compression plate, and engagement grooves are defined in the upper surface of the compression plate so that a head of a hydraulic cylinder can be coupled to the compression plate.
Abstract:
Disclosed herein is an internal reforming molten carbonate fuel cell power generation system including a reformer mounted in a stack for converting a hydrocarbon-based substance, such as natural gas, into hydrogen. The fuel cell power generation system includes a stack for generating power by a fuel cell reaction, a mixer for mixing fuel to be supplied to the stack, a pre-former disposed between the mixer and the stack for reforming a portion of fuel to be supplied to the stack from the mixer, and a burner for burning exhaust gas exhausted from a fuel electrode of the stack to supply heat and carbon dioxide required for the air electrode of the stack. An exhaust gas recycling line diverges from an exhaust gas line between the stack and the burner. The exhaust gas recycling line is connected to a fuel supply line between the mixer and the stack, whereby a portion of exhaust gas, exhausted from the fuel electrode of the stack after the reaction is completed, is mixed with the fuel flowing along the fuel supply line between the mixer and the stack, and then the mixture is reintroduced into the fuel electrode of the stack.
Abstract:
The invention relates to a separator plate having a fuel reforming chamber for a molten carbonate fuel cell, which can be simply and easily manufactured to integrate the fuel reforming chamber, which enables indirect reforming, with a separator plate so as to realize uniform heat distribution of the separator plate, and to perform a fuel gas reforming reaction, which is an endothermic reaction, using heat generated during the operation of the fuel cell. According to the invention, a fuel gas such as methane (CH4) is supplied to a fuel reforming chamber to reform it therein so as to convert it into hydrogen, after which the converted fuel gas is supplied between the fuel gas guides of an anode part positioned directly on the fuel reforming chamber, and at the same time, an oxidizing gas is supplied between the oxidizing gas guides positioned directly beneath the fuel reforming chamber, thus generating electricity.
Abstract translation:本发明涉及一种具有用于熔融碳酸盐燃料电池的燃料重整室的隔板,其可以简单且容易地制造成将能够进行间接重整的燃料重整室与隔板结合在一起,以实现均匀的热分布 并且使用在燃料电池的操作期间产生的热量进行作为吸热反应的燃料气体重整反应。 根据本发明,向燃料重整室供应诸如甲烷(CH 4 SO 4)的燃料气体以将其重整以便将其转化为氢气,之后将转化的燃料气体供应到 直接位于燃料重整室上的阳极部分的燃料气体引导件同时被供给到位于燃料重整室正下方的氧化气体导管之间,从而产生电力。