摘要:
A method for scheduling packet data transmissions in a wireless communication system is described wherein a priority function is based on a channel state indicator (CSI), the projected average throughput of the users, and a tuning parameter designed to control the throughput and fairness characteristics of the scheduling algorithm. The method also considers fairness criteria dictated by predetermined Quality of Service (QoS) requirements. The channel state indicator may be a Requested Data Rate (RDR) or Carrier-to-Interference ratio (C/I) information. The base station calculates a priority function for the multiple mobile users. Each priority function is a function of the CSI, the projected average throughput of a given mobile user, the average projected throughput over a set of users, and the tuning parameter.
摘要:
A probe apparatus disclosed for use in a separable connector includes an insulating body and spaced apart first and second electrical conductors in contact with the insulating body. The first and second electrical conductors have adjacent surfaces configured such that when an electrical potential is applied between the conductors, an electric field is formed between the conductors. The insulating body has an opening positioned between the conductors and adapted to receive a sensor such that a portion of the sensor is subjected to the electric field. A separable electrical connector system is described including the probe apparatus, as is a voltage sensing system including the probe apparatus and a voltage sensor positioned within the opening of the insulating body.
摘要:
A cartridge seal is co-axially secured within the circular aperture of a back plate bolted to a pump housing. Annular recesses are provided around inner and outer sides of the back plate, surrounding the circular aperture. The cartridge-type seal includes a stationary gland assembly and a rotatable shaft collar assembly. The inner side of the gland assembly includes a taper bore surrounding the pump drive shaft, and a circumferential lip. The lip nests within the inner annular recess of the back plate. The outer side of the gland assembly includes a circumferential groove. The collar assembly is locked to the drive shaft by means of setscrews. A snap-ring within the circumferential groove of the gland assembly is located within the outer side recess of the back plate. The snap-ring precludes axial movement of the gland assembly, while allowing quick removal and replacement of the cartridge seal.
摘要:
In a swept frequency oscillator arrangement compensation is provided for the non-linearities in the tuning sensitivity of the oscillator. The non-linearities are initially measured and stored. Subsequently the stored values are used to control the rate at which the clock pulses are integrated to produce a control signal for the oscillator.
摘要:
A method for scheduling tasks to be processed by one of a plurality of non-coherent processing devices, at least two of the devices being heterogeneous devices and at least some of said tasks being targeted to a specific one of the processing devices. The devices process data that is stored in local storage and in a memory accessible by at least some of the devices. The method includes the steps of: for each of a plurality of non-dependent tasks to be processed by the device, determining consistency operations required to be performed prior to processing the non-dependent task; performing the consistency operations for one of the non-dependent tasks and on completion issuing the task to the device for processing; performing consistency operations for a further non-dependent task such that, on completion of the consistency operations, the device can process the further task.
摘要:
A vibration damper assembly for damping non-synchronous vibration between adjacent, spaced apart components comprises a vibration damper located in both of a pair of generally confronting passages in each of the components. The assembly comprises at least two spaced apart articulation surfaces for contact between damper and component, each of the articulation surfaces is arcuate in a first direction and is characterized by having a substantially linear portion in an orthogonal and second direction. Thereby the contact area is greatly enlarged and material loss minimized. The cross-sectional shape of the damper or passage is non-circular and there is a clearance between the damper and passage sufficiently small to prevent rotation of the damper in the passage during use.
摘要:
A system includes a peripheral device and an expander having interfaces to couple to one or more peripheral devices and an expander. The expander has a storage to store entries containing routing information used to route a request received by the expander to one of the interfaces, wherein each interface is allocated to a respective set of routing information entries. Mapping logic remaps unused routing information of one of the interfaces to one or more other interfaces to expand capacity of the one or more other interfaces.
摘要:
A vehicle gearshift lever assembly is disclosed and includes an upper lever member for manipulation by the vehicle operator, an insert shaft for operative connection with the vehicle gearbox and an isolator member located in the lower end of the lever member and receiving the upper end of the insert shaft. The isolator member is formed of a resilient substance such as rubber so that vibration from the gearbox and the insert shaft are absorbed to a substantial degree by the isolator thereby to inhibit transfer of the vibration and noise from the gearbox to the upper lever member.
摘要:
A modular display and controller for providing information from user configurable display comprising a series of interconnected display modules. Users are able to physically attach and electrically attach arrayed rows of lighting elements together to form a variety of shaped signs for the display of scrolling information.
摘要:
A turbine disk and blade arrangement having a plurality of turbine blades mounted circumferentially around a disk. Each blade has a fir tree root which provides a series of fore-to-aft-extending projections and grooves. The disk has a plurality of radially extending posts which define fir tree recesses therebetween. Each fir tree recess also provides a series of fore-to-aft-extending projections and grooves allowing each fir tree root to engage with a respective fir tree recess. On each pair of facing sides of the fir tree root and the fir tree recess, one or more projections of the fir tree roots and/or the fir tree recesses are truncated to form fore-to-aft-extending cooling passages. The arrangement has lock plates which cover forward and/or rearward surfaces of the posts and of the fir tree roots and define feed channels therebetween which feed cooling air to the respective cooling passage.