摘要:
An optical planar wavelength selective filter is formed on a printed circuit substrate. Low optical loss polymers are used to make a layered structure that contains waveguides and free travel zones. A diffraction grating is strategically placed on the printed circuit substrate so that light from one waveguide is diffracted by the grating to exit the free travel zone and pass through the other waveguides. The low optical loss polymer is a reaction product of the hydrolysis and polycondensation reaction of organically functionalized alkoxysilanes. With a proper grating, the apparatus can be used as an optical triplexer at frequencies of 1310, 1490, and 1550 nanometers.
摘要:
An optical planar wavelength selective filter is formed on a printed circuit substrate. Low optical loss polymers are used to make a layered structure that contains waveguides and free travel zones. A diffraction grating is strategically placed on the printed circuit substrate so that light from one waveguide is diffracted by the grating to exit the free travel zone and pass through the other waveguides. The low optical loss polymer is a reaction product of the hydrolysis and polycondensation reaction of organically functionalized alkoxysilanes. With a proper grating, the apparatus can be used as an optical triplexer at frequencies of 1310, 1490, and 1550 nanometers.
摘要:
A device to control an electron beam for the generation of x-ray radiation, has an electron emitter to generate an electron beam, to which emitter an emitter voltage can be applied, a diaphragm, at least two control elements associated with the diaphragm to affect the electron beam, and switching arrangement with which at least two different electrical voltages can be applied to the at least two control elements. The same electrical voltage is applied to each of the at least two control elements. Upon switching the voltage, an electrical circuit that delays the setting of the respective voltage at the one control element is associated with the connection line of the one control element with the switching arrangement to switch over the voltage. The invention moreover concerns an operating method for the device and an x-ray tube provided with the device.
摘要:
A machine-implemented method for optimizing a supply chain configuration may include retrieving a supply chain configuration and financial requirements for a product, receiving user input to optimize the supply chain configuration, and outputting at least one most profitable scenario over a desired time period.
摘要:
A method and system for facilitating radio frequency (RF) communication between a radio frequency identification (RFID) device and RFID tags is disclosed. The method may include associating one or more RFID tags to one or more containers that comprise a container volume, wherein the RF signal communication between the RFID device and one or more of the RFID tags is at least partially obstructed, and integrating at least one conductive surface into the container volume, wherein if the RFID device is coupled to at least one of the conductive surfaces and energized, the RFID device, the at least one conductive surface and one or more of the RFID tags are capacitively coupled allowing RF signals to be communicated between RFID device and the one or more RFID tags in the container volume without being obstructed.
摘要:
In method and module for calculation of an orthogonal x-ray attenuation of a subject using a measured reference x-ray attenuation in computed tomography, the reference x-ray attenuation and the orthogonal attenuation are provided as input quantities for an automatic dose control of the computed tomography apparatus. The positioning of the subject with regard to the rotation axis of the computed tomography apparatus is taken into account in the calculation of the orthogonal x-ray attenuation detection of the table height of the subject table.
摘要:
A method and arrangement for aligning an optical component (14) on a printed wiring board (1) by using a reflector (8) below a surface mount technology camera to determine the offset (Δ) between the printed wiring board electrical layout and the light beam in the printed wiring board optical layer.
摘要:
Operation of a supply chain having a number of workstation that process items supported by pallets is managed using a sub-central controller, a number of pallet devices, each associated with a pallet, and one or more workstation devices, each associated with a workstation. A workstation device is operable to communicate with the pallet devices to acquire pallet information and to process the pallet information based upon rules provided by the sub-central controller. The workstation device acts on the processed pallet information to modify the operation of the supply chain. A central controller may be used to coordinate activities of multiple sub-central controllers.
摘要:
A method for resource management in a supply chain is provided. The method is used by a pallet device (106) that can be associated with a pallet (104) in the supply chain. The pallet is associated with one or more resources. Further, the supply chain includes a decentralized control system (100) that has at least one system server, a plurality of pallets, a plurality of pallet devices, and a plurality of resources. The method includes detecting (302) an event and acquiring (304) status information of at least one of the plurality of pallets in response to the event. Further, the method includes determining (306) a reporting condition of at least one of the plurality of resources, based on the status information. The method includes reporting (308) the status information to one of at least one system server and at least one of the plurality of pallet devices, based on a positive reporting condition.
摘要:
A device to control an electron beam for the generation of x-ray radiation, has an electron emitter to generate an electron beam, to which emitter an emitter voltage can be applied, a diaphragm, at least two control elements associated with the diaphragm to affect the electron beam, and switching arrangement with which at least two different electrical voltages can be applied to the at least two control elements. The same electrical voltage is applied to each of the at least two control elements. Upon switching the voltage, an electrical circuit that delays the setting of the respective voltage at the one control element is associated with the connection line of the one control element with the switching arrangement to switch over the voltage. The invention moreover concerns an operating method for the device and an x-ray tube provided with the device.