摘要:
A plurality of virtual machines execute on a network of physical computers. The virtual machines are deployed in fenced and unfenced configurations across multiple physical computers. Host level virtual network devices execute on the physical computers, and intercept the virtual machine network traffic. For each fenced configuration of virtual machines, a distributed virtual switch transmits network traffic between the virtual machines deployed in that fenced configuration, and a virtual router routes network traffic between virtual machines deployed in that fenced configuration and external components.
摘要:
An electromagnetic field probe is provided that is capable of measuring four electromagnetic field components in a spatial plane tangential to the central axis of the probe. The probe included two dipoles and two loops. The dipoles are disposed about the central axis at substantially 90 degree angles, while the loops are disposed from 45 to 225 and from 135 to 315 degrees, respectively. In one embodiment, a plurality of flexible conductors, signal combiners and switches are used to couple the dipoles and loops to a network or spectrum analyzer. To isolate the effects of field components that are incident to the central axis of the probe, a 180 degree signal combiner may be employed to separate the common mode signals.
摘要:
The present invention is directed to liquid fertilizer composition having a high nitrogen content comprising an aqueous mixture of ammonium nitrate, an aqueous urea-formaldehyde resin solution and optionally urea that possess surprisingly depressed freeze points and salt-out temperatures.
摘要:
A radio frequency anechoic test chamber (100) includes a test stand (118) that includes a relatively small diameter, mechanically robust, telescoping lower vertical support column (202), a large diameter thin walled middle vertical support column (204) that includes a sheet or coating of absorbing material (224) disposed proximate the circumference of the thin walled middle support column, (204) and an upper support member (206). The radio frequency anechoic test chamber provides improved ripple performance that allows more accurate measurements of the gain pattern of radio frequency equipment.
摘要:
A document prototyping system, program product, and methods are provided to create a systems engineering prototype document. The system can include a database having a plurality of systems engineering document templates stored therein. Each of the plurality of systems engineering document templates includes a plurality of document sections. The system can also include user interface in communication with the database to provide access to the database by a user, a document browser in communication with the database and the user interface to browse the plurality of systems engineering document templates through the user interface, a document section selector in communication with the user interface to select a subset of the plurality of document sections from the plurality of systems engineering document templates responsive to the user, and a document section merger responsive to the document section selector to merge the selected sections into a new systems engineering prototype document having the subset of the plurality of document sections to thereby define a new systems engineering prototype document format.
摘要:
An antenna arrangement (402) for a wireless communication device (400) comprises a first element (404) and a second element (406). The first element (404) is coupled to circuitry (408) of the wireless communication device (400). The second element (406) is movable between a first and a second position relative to the first element (404). The performance of the antenna arrangement (402) is substantially less desirable when the second element (406) is between the first and the second position than the performance of the antenna arrangement (402) when the second element (406) is at either the first or the second position. The second element (406) is mechanically spaced apart from and substantially electrically coupled to the first element (404) in both the first and the second position. The antenna arrangement (402) advantageously provides for reduced dimensions while achieving desirable performance.
摘要:
The ambulatory stretcher with patient lifting measures enables a patient to be loaded onto the ambulatory stretcher without moving. The ambulatory stretcher with patient lifting measures includes an outer frame that includes an opening, and which is adapted to be placed onto the ground immediately surrounding a patient. The outer frame includes a pair of patient-conveying members that extend and retract to close off or open up the opening in the outer frame. The patient-conveying members are able to extend underneath a patient while said patient is lying on the ground surface. Moreover, the patient-conveying members are able to load the patient onto the assembly without requiring any movement of the patient with respect to the ground surface.
摘要:
The invention relates to a folding mounting assembly mounted on a mobile stand for controlling movement of a projector arm, having a projector at one end, from an operable position substantially perpendicular to a screen or other surface mounted on the stand and onto which the projector is intended to project and a closed position parallel to the screen. The assembly comprises a vertical support member that is connectable to the stand and a projector arm mounting means pivotally connected to the vertical support member by means to control the rate of movement of the projector arm mounting means so that it can easily be manually moved from the operable to the closed position and vice versa and will support a projector arm.
摘要:
The present invention relates to artificial tissue growth guides comprising a core and an outer sleeve, which facilitates the regeneration of damaged tissues, such as nerves. The core is fixed to the sleeve at two attachment sites so that cells seeded within the core produce mechanical tension between the attachment sites. This tension aligns the cells and the fibres of the core and provides an improved substrate for tissue regeneration. Growth guides may be surgically implanted into an individual.
摘要:
A remote control and methods of configuring the remote control are provided. The remote control includes a plurality of favorite channel buttons, an icon holding member having at least one surface positioned adjacent to at least one of the favorite channel buttons, and a transmitter that transmits signals, such as a channel corresponding to an icon located on the icon holding member, to a media device in response to a favorite channel button being pressed by a user. The method of configuring the remote control includes placing an icon on the icon holding member adjacent to one of the favorite channel buttons and programming the remote control to send a signal representing a desired channel that corresponds to the icon using the transmitter when the favorite channel button adjacent to the icon is pressed.