摘要:
Phase change material modules for use in a heat exchanger are described. The phase change material module comprises two or more set of a plurality of substantially aligned hollow structures arranged to form a porous structure. A phase change material capable of undergoing a phase change as a result of heat exchange between it and a fluid is housed within the hollow tubes. Also described is a phase change material module with hollow tubes having a cross-sectional area through the phase change material selected from elliptical, rectangular, stadium-shaped, teardrop-shaped, airfoil-shaped, rounded rectangle and ovoid. A heat exchanger comprising a plurality of the phase change material modules, a first fluid inlet and outlet, and a second fluid inlet and outlet, wherein the phase change material modules are repeated circulated from alignment with the first fluid inlet and the second fluid inlet is also described.
摘要:
Phase change material modules for use in a heat exchanger are described. The phase change material module comprises two or more set of a plurality of substantially aligned hollow structures arranged to form a porous structure. A phase change material capable of undergoing a phase change as a result of heat exchange between it and a fluid is housed within the hollow tubes. Also described is a phase change material module with hollow tubes having a cross-sectional area through the phase change material selected from elliptical, rectangular, stadium-shaped, teardrop-shaped, airfoil-shaped, rounded rectangle and ovoid. A heat exchanger comprising a plurality of the phase change material modules, a first fluid inlet and outlet, and a second fluid inlet and outlet, wherein the phase change material modules are repeated circulated from alignment with the first fluid inlet and the second fluid inlet is also described.
摘要:
Cooling systems and methods for cooling in a power plant using a phase change material. In one embodiment, a phase change material container includes at least one phase change material which may be in the form of a slurry; and at least one conduit for transporting the fluid through the phase change material when located in the phase change material container. The system may also comprise an air flow chamber; and a phase change material flow system including a pump for pumping phase change material from an outlet of phase change material container, to at least one phase change material spray nozzle. The phase change material flow system is configured to ensure that solidified phase change material is returned to the phase change material container.
摘要:
Cooling systems and methods for cooling in a power plant using a phase change material. In one embodiment, a phase change material container includes at least one phase change material which may be in the form of a slurry; and at least one conduit for transporting the fluid through the phase change material when located in the phase change material container. The system may also comprise an air flow chamber; and a phase change material flow system including a pump for pumping phase change material from an outlet of phase change material container, to at least one phase change material spray nozzle. The phase change material flow system is configured to ensure that solidified phase change material is returned to the phase change material container.
摘要:
A method in a controller for a first cell in a mobile cellular network for making a decision to handover a user equipment to a second cell of the mobile cellular network is described. The method may include obtaining a first measurement of an uplink signal from a user equipment at the first cell, obtaining a second measurement of an uplink signal from the user equipment at the second cell, and making a decision to handover the user equipment from the first cell to the second cell using the obtained first and second measurements.
摘要:
An administrator of an enterprise storage set may be tasked with storing a large number and variety of data sets on a large number and variety of storage components. However, the manual selection of a physical schema by an administrator may be time-consuming, may generate inefficient physical schemata, and may not be easily reevaluated as the data sets and storage set change. Presented herein are techniques for automatically determining a physical schema by comparing the storage factors of each data set (e.g., data size, relationships with other data sets, and usages of the data set by users) with the storage capabilities of the storage components, selecting a suitable storage component, and implementing the storage of the data set on the storage component. An embodiment of these techniques may thereby achieve an automated identification of a physical schema with improved efficiency and flexibility of the physical schema while conserving administrative resources.
摘要:
This invention is concerned with a method and apparatus for measuring and controlling the quality of physiological acoustic signals, which include tracheal breathing sounds, lung sounds, heart sounds, blood flow sounds, joint sounds, and gastrointestinal sounds. The interface between the skin and the device is carefully controlled to achieve a desirable acoustic coupling. A pneumatic feedback control system automatically adjusts of the pressure applied to the skin; another pneumatic control system adjusts the pressure inside an airtight chamber for housing the acoustic sensor. A processor assesses the signal qualities, such as amplitude and frequency spectrum, and provides feedback controls to the interface if needed. The resulting method and apparatus eliminates operator's variability and acquires physiological acoustic signals with consistent and desirable qualities for various medical diagnostic purposes.
摘要:
The present invention features a method of treating pores on the skin by applying to skin in need of such treatment a device including a housing having a skin contacting surface, a first conductive electrode, a second conductive electrode, and a carrier; wherein the first conductive electrode is in electric communication with the second conductive electrode, wherein the first conductive electrode is in ionic communication with the carrier, wherein the carrier is in communication with the skin contacting surface, and wherein the skin contacting surface is placed in contact with the skin.
摘要:
A method and system for transferring user equipment (UE) in a mobile communication system are disclosed. According to the method, a source core (CN) network determines to transfer a UE that it serves and sends a transfer instruction carrying UE transfer restriction information to the UE; an access network receives a transfer request that is sent by the UE according to the restriction information carried in the transfer instruction; the access network selects a target CN entity that is different from the source CN entity for the UE; and the UE is transferred to the target CN entity. The method and system provided by the present invention are applicable to user transferring between CN entities in any communication network. The transferring is initiated by a network side entity, and a more preferable CN entity is selected for the UE to provide a better service.
摘要:
Various schedulers are disclosed for use within a network node of a radio access network. A scheduler can be configured to divide a defined frequency bandwidth into a plurality of bandwidth pipes. The scheduler then develops sets of nodes that are candidates for using corresponding ones of the bandwidth pipes to communicate with the network node during a communication time interval. At least one of the sets contains a plurality of candidate nodes. The scheduler operates separate parallel processes that are arranged for computing metrics for the sets of nodes. The scheduler assigns one of the nodes in each set of nodes to the corresponding bandwidth pipe in response to the computed metrics. The scheduler may divide the defined frequency bandwidth into a plurality of non-overlapping bandwidth pipes so that metrics for candidate nodes in one of the sets can be computed independently from candidate nodes in another one of the sets.