Abstract: The present invention relates to a wireless network communication technology, and in particular to a time synchronization error compensation method for multi-hop wireless backhaul network based on PTP. Based on PTP, the present invention uses an intermediate node to count the timestamps of transceiving the PTP synchronization message Sync and the delay request message Delay_Req, detect and compensate the local forwarding time of synchronization message Sync and the delay request message Delay_Req and the link delay of transmitting the two between nodes based on the linear regression technology, thereby finally implementing asymmetric delay correction of wireless links between the master and slave nodes and completing time synchronization error compensation.

Abstract: The invention provides a testing probe, which includes a base, an elastic extensible element and a probe needle, the probe needle being disposed on the base through the elastic extensible element, and the elastic extensible element being in a stretched state. By the testing probe provided by the invention, only coating silver adhesive on the testing area of the liquid crystal screen previously is needed, and the steps of making solder wire, fixing solder wire, etc. are not needed any more. Therefore not only the preparation before testing can be simplified largely, but also reliability of connection is ensured, so as to reduce testing time largely and improve testing efficiency. The invention further provides a testing device including the above testing probe.

Abstract: The present invention provides a lighting article such as holiday decorations and lamps e.g. a glowing Santa Claus, and a method of preparing such articles. The lighting article comprises an elongated structure resembling an image such as Santa. A solid matrix embedded with a LED strip is fitted into a groove in the elongated structure. The light emitted from the strip irradiates upon the elongated structure, and makes Santa Claus shining.

Abstract: The present invention provides a lighting article such as holiday decorations and lamps e.g. a glowing Santa Claus, and a method of preparing such articles. The lighting article comprises an elongated structure resembling an image such as Santa. A solid matrix embedded with a LED strip is fitted into a groove in the elongated structure. The light emitted from the strip irradiates upon the elongated structure, and makes Santa Claus shining.

Abstract: The invention provides a settling device comprising an acoustic wave generator and an inclined settling chamber. The angle ? between the acoustic wave direction and the inclined settling chamber is greater than 0 and less than 90°. The invention also provides a concentration method and a separation method using the device. The invention can be used to concentrate or separate particles such as inorganic particles, organic particles, and biological particles, for example, mammalian cells, bacteria, yeast, algae, and plant cells. The invention exhibits technical merits such as higher efficiency, cost-effectiveness, and large-scale production.

Abstract: The invention provides a simple, inexpensive, accurate, and rapid method of measuring particle settling velocity comprising: (i) providing a gravity settler such as a column; (ii) filling the column with a first homogenous particle suspension, wherein the particle concentration in the first homogenous particle suspension is X, (iii) separating the column into an upper sub-column and a lower sub-column with a height h after settling the first homogenous particle suspension for a period of time t, wherein some particles remain in the upper sub-column; (iv) removing the particle suspension in the upper sub-column and mixing the particle suspension confined in the lower sub-column with a height h to prepare a second homogenous particle suspension; (v) measuring the particle concentration in the second homogenous particle suspension X; and (vi) determining the particle settling velocity v with the formula: v=h(X?X)ltX. Also provided are device and system for carrying out the method.

Abstract: The invention provides a settling device comprising an acoustic wave generator and an inclined settling chamber. The angle ? between the acoustic wave direction and the inclined settling chamber is greater than 0 and less than 90°. The invention also provides a concentration method and a separation method using the device. The invention can be used to concentrate or separate particles such as inorganic particles, organic particles, and biological particles, for example, mammalian cells, bacteria, yeast, algae, and plant cells. The invention exhibits technical merits such as higher efficiency, cost-effectiveness, and large-scale production.

Abstract: The invention provides a simple, inexpensive, accurate, and rapid method of measuring particle settling velocity comprising: (i) providing a gravity settler such as a column; (ii) filling the column with a first homogenous particle suspension, wherein the particle concentration in the first homogenous particle suspension is X, (iii) separating the column into an upper sub-column and a lower sub-column with a height h after settling the first homogenous particle suspension for a period of time t, wherein some particles remain in the upper sub-column; (iv) removing the particle suspension in the upper sub-column and mixing the particle suspension confined in the lower sub-column with a height h to prepare a second homogenous particle suspension; (v) measuring the particle concentration in the second homogenous particle suspension X; and (vi) determining the particle settling velocity v with the formula: v=h(X?X)ltX. Also provided are device and system for carrying out the method.

Abstract: The invention provides a device for separating a first entity and a second entity by flowing them downwardly in an inclined settling chamber. Each entity has its own outlet located at approximately the lowest end of the inclined settling chamber. The device may be used in industrial fields such as pharmaceutics, biologics, and biofuels, for the purposes of large-scale growth and separation of algae biomass, bacteria and yeast cultures; algae metabolite production; and cell separation, among others. The invention exhibits technical merits such as effective particle separation or concentration capacity, robust structure, easy operation, cost-effective manufacturability, disposability, and high productivity in e.g. perfusion photobioreactor systems.