Abstract:
A process and apparatus for the collection of biological materials from air. Collection and separation devices utilize a novel membrane structure formed from a functionalized inorganic mesoporous membrane supported by porous substrate.
Abstract:
A stack for a fuel cell system generating electrical energy from an electrochemical reaction of hydrogen and oxygen includes one or more electricity generating elements having a membrane-electrode assembly and an inner separator, the inner separator being disposed on either side of the membrane-electrode assembly. A pair of outermost separators positioned at opposite ends of the stack, respectively, to form current collecting units having opposite polarities. The pair of outermost separators are fastened to provide a coupling force (or pressure) to the electricity generating elements in an opposing direction and to closely connect the electricity generating elements with each other.
Abstract:
A secondary battery includes an electrode assembly including a positive electrode, a negative electrode and a separator interposed therebetween. A container receives the electrode assembly, and a cap assembly is fixed to the container to seal the container. A collector plate is electrically connected to the electrode assembly. The positive electrode, the negative electrode, or both has an uncoated region uncoated with active material. The uncoated region has a bent portion and the collector plate can be electrically connected to the bent portion of the uncoated region.
Abstract:
Disclosed is an electrolyte for a rechargeable lithium battery including at least one organic solvent selected from the group consisting of thiocarbonate, thioester and thioether, and a lithium salt.
Abstract:
A memory system, which can improve the operation speed of a data bus and is suitable for widening bandwidth by extending the width of the data bus, and memory modules used for the memory system are provided. In the memory system, data buses of a first channel and data buses of a second channel are extended from a memory controller and are arranged on the left and right of a common control and address bus, respectively. Memory modules of a first group are loaded in the data buses of the first channel and memory modules of a second group are loaded in the data buses of the second channel. Also, in the memory system, the memory modules share the common control and address bus positioned in the center. Also, the memory modules are arranged so that some parts of the memory modules overlap each other and that the memory modules of the first group and the memory modules of the second group cross each other. Each of the memory modules includes a plurality of memory devices mounted on the memory module, a signal input and output portion positioned on a side of the memory module, the signal input and output portion for connecting the memory module to a connector on a system board, a buffer mounted on the memory module, and a control and address bus connected between the signal input and output portion and the buffer. The memory devices are sequentially connected to the output line of the buffer so that a signal that passed through the control and address bus is input to the respective memory devices at time intervals through the buffer.
Abstract:
An active material for a nickel electrode includes a double hydroxycarbonate having the formula Ni.sub.1-2x M.sub.2x (OH).sub.2 (CO.sub.3).sub.x .multidot.nH.sub.2 O, where 0.05
Abstract:
A positive electrode and a negative electrode for an alkaline storage battery and manufacturing methods thereof are provided. The positive electrode includes a nickel porous body formed on a plate, active material particles containing nickel hydroxide and additives filled up into the nickel porous body, a conductive layer coated on the surface of active material particle, and a protective layer coated on the surface of the conductive layer, for increasing the binding force between the active material particles and preventing the contact between the active material particles and an electrolytic aqueous solution.
Abstract:
Provided is a semiconductor package having high electric reliability. The semiconductor package includes a lower sub-semiconductor package including a lower semiconductor chip and a lower mold layer on the lower semiconductor chip and having a mold via hole, an upper sub-semiconductor package including an upper semiconductor chip, a filling layer that is between the lower sub-semiconductor package and the upper sub-semiconductor package, a connection via in the mold via hole that penetrates the lower mold layer and the filling layer and electrically connects the lower sub-semiconductor package to the upper sub-semiconductor package. The filling layer includes an extending part of the filling layer that extends into the mold via hole of the filling layer from a portion having a higher level than a top surface of the lower mold layer.
Abstract:
The present invention relates to a dual focusing optical coherence imaging system. The dual focusing optical coherence imaging system includes: a light source unit for generating broadband light; a main optical distributor for distributing the light generated from the light source to allow the light to be propagated; an interference unit including first and second interference parts for forming interference signals with respect to different focused areas of an object to be detected using the light distributed from the optical distributor, and a common sample arm commonly connected to the first and second interference parts; an optical switch connected to the first and second interference parts to select at least one of the interference signals transmitted from the first and second interference parts; and a detection unit for converting the interference signal selected by the optical switch according to a preset mode into an electrical signal.
Abstract:
A retractable half-body sauna device includes a main body, a retractable body, a first sliding member, and a second sliding member. The first sliding member is installed along inner surfaces of the bottom plate, the two side plates, or the bottom plate and the two side plates of the main body. The second sliding member is installed along outer surfaces of the bottom plate, the two side plates, or the bottom plate and the two side plates of the retractable body. The first and second sliding members are configured for engaging and sliding on each other so as to the retractable body is pulled partially out of and pushed partially into the main body, such that an inner space defined by the main body and the retractable body gets maximized and minimized, respectively.