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 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 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:
The present invention relates to the calibration of devices using a secondary binding agent or reference material. In one embodiment, the present invention provides a method of calibrating a nanosensor by providing a nanosensor comprising an analyte binder attached to a reference binder, extracting a calibration curve from binding a reference material to the reference binder, and calibrating the nanosensor by using the calibration curve to correct for device variation.
摘要:
In a method for determining an electrical operating variable, in particular the air play (L) and/or zero position (N) of a brake (1) having a friction element (12) which can be pressed in at least two application directions (A, B) against the friction surface of an element (14) to be braked, the air play or the zero position can be determined in a simple and precise manner by virtue of the friction element (12) being placed into a first and a second point of contact (K1, K2) with the element (14) to be braked, the position x1, x2 of the contact points K1, K2 being detected by means of sensors, and the operating variable (L, N) which is sought being determined therefrom.
摘要:
An automated machine for transferring solution from a source microwell plate to a destination microwell plate. A plurality of pins is used for transferring the solution. The pins are attached to pin assemblies. The pin assemblies are attached to the circumference of a circular dial that is rotatably connected to the automated machine. The circular dial rotates the pins form a solution removal position to a solution transfer position and then to a pin cleaning position. Solution is removed from individual wells at the solution removal position and the solution is transferred to individual wells at the solution transfer position. The pins are cleaned at the pin cleaning position. A computer is programmed to control the automated machine and the transfer of solution. In a preferred embodiment, the computer is programmed to: 1) execute a saved transfer list, 2) accept a customized input list from an operator, 3) execute the customized input list, and 4) save the customized input list for later execution. In a preferred embodiment, the automated machine is utilized for transferring variable volumes of solution from the source microwell plate to the destination microwell plate.