摘要:
Structural member bend radius sensor apparatus 90 comprises three fibre Bragg grating (FBG) strain sensors 102 provided within three optical fibres 14, 16, 18. The optical fibres 14, 16, 18 and the FBGs 102 are embedded within a part-cylindrical shaped carrier member 92. The fibres 14, 16, 18 are provided at three spaced locations across the shaped carrier member 92 so that, in use, the three respective FBG strain sensors will be located at three different angular positions around the circumference of the structural member (pipe) 68. Structural member shape measurement apparatus 100 comprises four bend radius sensor apparatus 90 provided at four bend radius measurement positions along the pipe 68. The four bend radius sensor apparatus 90 shown share their optical fibres 14, 16, 18, and a single shaped carrier member 92. The shape measurement apparatus 100 further comprises FBG interrogation apparatus 104.
摘要:
A method of determining the impact resistance of a structure including a crushable material comprises the steps of determining for one or more layers of a finite element of said material during an impact whether said element or layer thereof is to be treated as failing by crushing. If the element or layer is determined to fail by crushing, a load-bearing portion of the structure is defined and the load-bearing portion is treated for the purpose of subsequent calculations as exhibiting an ongoing resistance.
摘要:
An embodiment of the present invention provides a method, comprising communicating and coexisting in a wireless personal area network (WPAN) by a at least one device operating as an advanced device (AD) and at least one device operating as a simple device (SD) by using the at least one AD as a proxy for the at least one SD to control the communication of the at least one SD.
摘要:
Methods are described for detecting genes that encode toxic proteins using maps derived from shotgun libraries by determining the presence of gaps in clone start sites on either side of open reading frames. The method is exemplified by identifying a previously unknown restriction endonuclease gene.
摘要:
A process is provided for determining the distance between two devices by sending ranging packets between them. The local device sends a first ranging packet, which the remote device sends holds for a first hold time before sending a second ranging packet in return. The local device also sends a third ranging packet, which the remote device sends holds for a second hold time before sending a fourth ranging packet in return. If the second hold time is twice the first hold time, then the propagation time for signals between the two devices can be determined solely by time measurements made by the local device. For received signals, these time measurements can be adjusted to provide accurate time estimates for a direct line of sight signal, which corresponds to a shortest transmission distance between the two devices. The propagation time can then be used to determine distance between the devices.
摘要:
A separator for separating liquids in a fluid stream generated by blow-by gases produced in a crankcase of an internal combustion engine wherein the fluid stream includes both gasses and liquids. The separator including an inlet in fluid connection with the engine for receiving the fluid stream and an outlet in fluid connection with the engine to return a gas stream to the engine. The separator further including a fluid path fluidly connecting the inlet to the outlet and a containment vessel in fluid connection with the fluid path. The separator having a fluid stream accelerator in the fluid path and the accelerator accelerating the fluid stream to at least partially separate the gasses from the liquids in the fluid stream. A deflector, which is also in the fluid path between the accelerator and the outlet, changes the direction of the liquid to direct at least part of the liquids in the fluid stream into a containment portion of the vessel and directs the gas stream to the outlet.
摘要:
Insecticidal, acaricidal, nematicidal or molluscicidal compounds of formula (I) wherein Y is a single bond, C═O, C═S or C═(O)q where q is 0, 1 or 2; and R1, R2, R3, R4, R8, R9 and R10 are as defined in the claims or salts or N-oxides thereof, processes for preparing them and compositions containing them.
摘要:
A ultra wideband (UWB) wireless network may include a plurality of UWB wireless devices communicating over a plurality of UWB frequency bins extending over a UWB frequency range. At least one of the UWB wireless devices may be for determining a respective actual signal level associated with each UWB frequency bin, and generating a do-not-use UWB frequency bin list by comparing each actual signal level with at least one interference threshold. Thus, the UWB wireless devices can avoid using frequency bins experiencing excessive interference to thereby provide more reliable UWB communications.
摘要:
A method wherein subjects having or at risk for having hyperopia, presbyopia or astigmatism are administered a composition having an effective amount of ocular antioxidants, including specifically macular pigments, to prevent, treat, or delay the onset of age-related macular degeneration (AMD).
摘要:
A method can include a mobile device, of a user determining location information corresponding to the mobile device within an establishment and communicating with a smart shopping infrastructure. The communicating may include providing the smart shopping infrastructure with the location information. The method can further include cross-referencing the location information with inventory information to determine a first location within the establishment where the mobile device is currently situated, and providing the mobile device with at least one smart shopping service based at least in part on the cross-referencing.