摘要:
The invention generally relates to enclosed desorption electrospray ionization probes, systems, and methods. In certain embodiments, the invention provides a source of DESI-active spray, in which a distal portion of the source is enclosed within a transfer member such that the DESI-active spray is produced within the transfer member.
摘要:
A mass spectrometer and methods for obtaining the mass spectrum of a single macromolecular or biomolecular ion in a mass spectrometer. The methods include creating single macromolecular or biomolecular primary ions in an ion trap by ionization of a macromolecule or biomolecule; ejecting half of the primary ions for detection with a first charge detector; ejecting half of the primary ions to impact upon a conversion dynode, thereby creating secondary ions for detection with charge amplification detector such as a channeltron or an electromultiplier or an MCP.
摘要:
An assembling structure of an optical disc drive is provided to comprise a chassis, for supporting a tray, wherein the tray is used for loading and unloading an optical disc, and the chassis has an assembling recess horizontally disposed at side of the chassis and positioned under the tray; a top cover, having an assembling element accommodated in the assembling recess of the chassis; and a bottom cover, positioned under the chassis and assembled to the top cover.
摘要:
A method of improving efficiency of solar cells made of crystalline silicon, including monocrystalline silicon, multicrystalline silicon and polycrystalline silicon is provided. In the method, a negative bias pulse is applied to solar cells at a predetermined voltage, a predetermined frequency, and a predetermined pulse width while immersing the solar cells in a hydrogen plasma. Hydrogen ions are attracted and quickly implanted into the solar cells. Thus, the passivation of crystal defects in the solar cells can be realized in a short period. Meanwhile, the properties of an antireflection layer cannot be damaged as proper operating parameters are used. Consequently, the serious resistance of the solar cells can be significantly reduced and the filling factor increases as a result. Further, the short-circuit current and the open-circuit voltage can be increased. Therefore, the efficiency can be enhanced.
摘要:
A motor assembly for ceiling fans includes a top cover having a plurality of protrusions extending from a top thereof, a bottom cover and a ring-shaped member connected between the top cover and the bottom cover so as to form a case. A shaft rotatably extends through the top cover and the bottom cover. A stator is fixed to the shaft and located in the case, and a permanent magnet is fixed to an inner periphery of the ring-shaped member. A light detection device is connected to the frame and includes a light detection member. A circuit board is located in the light detection device. The protrusions pass through the light detection member to block a light beam emitted from the light detection member to activate the light detection member to send a signal to the circuit board to count the revolution of the shaft.
摘要:
An insect-trapping device is composed of a container and two caps respectively mounted on two ends of the container. One cap has multiple ventilation holes defined thereon and the other cap combines with an inducer that particularly emits special scent (pheromone) to attract insects. The container is preferably made of resilient material and foldable so as to keep the volume of the insect-trapping device adjustable. Particularly, the insect-trapping device mimics a lantern to have a decorative and pleasant appearance when the device is suspended or located.
摘要:
The invention generally relates to enclosed desorption electrospray ionization probes, systems, and methods. In certain embodiments, the invention provides a source of DESI-active spray, in which a distal portion of the source is enclosed within a transfer member such that the DESI-active spray is produced within the transfer member.
摘要:
A mass spectrometer and methods for obtaining the mass spectrum of a single macromolecular or biomolecular ion in a mass spectrometer. The methods include creating single macromolecular or biomolecular primary ions in an ion trap by ionization of a macromolecule or biomolecule; ejecting half of the primary ions for detection with a first charge detector; ejecting half of the primary ions to impact upon a conversion dynode, thereby creating secondary ions for detection with charge amplification detector such as a channeltron or an electromultiplier or an MCP.
摘要:
A solar cell is disclosed, including the following elements. A through hole passes through a substrate, wherein the substrate includes a third surface in the through hole. A first thin film semiconductor layer is disposed on the third surface in the through hole and extended to be over the second surface of the substrate, wherein the first thin film semiconductor layer is second type. A second thin film semiconductor layer is disposed on the first surface of the substrate. A through hole connection layer is disposed in the through hole and extended to be over the first surface and the second surface of the substrate, wherein a junction is formed between the first thin film semiconductor layer and the substrate to prevent shorts from occurring between the through hole connection layer and the substrate.
摘要:
A self-alignment method for a recess channel dynamic random access memory includes providing a substrate with a target layer, a barrier layer and a lining layer, wherein the target layer has shallow trench isolation structures; patternizing the lining layer, barrier layer and target layer to form recess trench channels; depositing a dielectric layer onto the recess trench channel; forming an ion doped region in the target layer; removing a portion of the dielectric layer to expose a portion of the recess trench channel; forming a filler layer covered onto the recess trench channel; removing a portion of the filler layer to expose a portion of the recess trench channel; forming a passivation layer onto the recess trench channel; removing the passivation layer on the lining layer; and removing the lining layer to form a plurality of structural monomers disposed at the recess trench channel and protruded from the target layer.