Abstract: The present invention relates to a polybutylene terephthalate composition and the manufacturing method thereof. The change rate of crystallization heat flow of the polybutylene terephthalate composition is greater than 200 mW/g-min, and the change rate of crystallization heat flow is determined according to the method of ISO 11357-3:2018. The polybutylene terephthalate composition of this invention has ideal heat resistance and low impurity content, and it is highly applicable in subsequent processing.

Abstract: A method is provided for remotely assuring the quality and transportation of offsite construction components. The method involves placing a code on the module, where the code contains identity information about the module. Then the code is scanned to obtain the identity information and to upload it to a blockchain data storage facility. Access is allowed to the identity information in the blockchain data storage facility to relevant parties for the purpose of remotely inspecting the module to verify its quality. Based on this verification the module may be delivered to a transportation facility for transport. During transport location information about the module is collected and uploading it to blockchain data storage facility. Second access is allowed to the location information stored in the blockchain data storage facility to allow relevant parties to remotely understand the transportation situation of the module.

Abstract: Disclosed are a wireless bandwidth adjustment method, a wireless bandwidth adjustment apparatus, a terminal, and a storage medium. The wireless bandwidth adjustment method includes: determining a target IOT device and a bandwidth currently used by the target IOT device; collecting statistics on communication data of the target IOT device generated within a preset time period; determining a wireless bandwidth adjustment strategy based on the communication data; and adjusting the bandwidth based on the wireless bandwidth adjustment strategy.

Abstract: A method is provided for remotely assuring the quality and transportation of offsite construction components. The method involves placing a code on the module, where the code contains identity information about the module. Then the code is scanned to obtain the identity information and to upload it to a blockchain data storage facility. Access is allowed to the identity information in the blockchain data storage facility to relevant parties for the purpose of remotely inspecting the module to verify its quality. Based on this verification the module may be delivered to a transportation facility for transport. During transport location information about the module is collected and uploading it to blockchain data storage facility. Second access is allowed to the location information stored in the blockchain data storage facility to allow relevant parties to remotely understand the transportation situation of the module.

Abstract: Disclosed are a wireless bandwidth adjustment method, a wireless bandwidth adjustment apparatus, a terminal, and a storage medium. The wireless bandwidth adjustment method includes: determining a target IOT device and a bandwidth currently used by the target IOT device; collecting statistics on communication data of the target IOT device generated within a preset time period; determining a wireless bandwidth adjustment strategy based on the communication data; and adjusting the bandwidth based on the wireless bandwidth adjustment strategy.

Abstract: A polyester with ultra-high flowability and good stability over time is provided. The polyester can be polybutylene terephthalate (PBT) or another aliphatic polyester, whose intrinsic viscosity (IV) is less than 0.6 dL/g and a carboxylic end group (CEG) content is 15 meq/kg or less, and characterized by having a melt volume rate (MVR) of greater than 400 cm3/10 min at 250° C. A resin composition of this polyester is provided, which can be meltblown into microfibers of a uniform diameter and a concentrated diameter distribution, forming a fabric with a uniform small pore size.

Abstract: A polyester with ultra-high flowability and good stability over time is provided. The polyester can be polybutylene terephthalate (PBT) or another aliphatic polyester, whose intrinsic viscosity (IV) is less than 0.6 dL/g and a carboxylic end group (CEG) content is 15 meq/kg or less, and characterized by having a melt volume rate (MVR) of greater than 400 cm3/10 min at 250° C. A resin composition of this polyester is provided, which can be meltblown into microfibers of a uniform diameter and a concentrated diameter distribution, forming a fabric with a uniform small pore size.

Abstract: Apparatus for taking a water depth measurement using a probe, featuring a signal processor configured to receive signaling containing information about a water depth measurement determined from a pressure sensed by a pressure sensor contained in a probe immersed in flowing water, and also containing information about a velocity-dependent offset that is determined and depends on the velocity of the flowing water; and determining corresponding signaling containing information about a corrected water depth measurement of the flowing water by correcting the water depth measurement by the velocity-dependent offset in order to compensate for Venturi effects on the pressure sensor in the moving water.

Abstract: Apparatus for taking a water depth measurement using a probe, featuring a signal processor configured to receive signaling containing information about a water depth measurement determined from a pressure sensed by a pressure sensor contained in a probe immersed in flowing water, and also containing information about a velocity-dependent offset that is determined and depends on the velocity of the flowing water; and determining corresponding signaling containing information about a corrected water depth measurement of the flowing water by correcting the water depth measurement by the velocity-dependent offset in order to compensate for Venturi effects on the pressure sensor in the moving water.