Abstract:
In some embodiments, an apparatus can include a memory configured to store a first hypervisor message and a second hypervisor message. The apparatus can further include a hypervisor interface module. The hypervisor interface module can retrieve, from the memory, the first hypervisor message and the second hypervisor message. The hypervisor interface module can define a first signal, the first signal being based at least in part on the first hypervisor message and having a first format associated with a first hypervisor platform. The hypervisor interface module can define a second signal, the second signal being based at least in part on the second hypervisor message and having a second format associated with a second hypervisor platform. The hypervisor interface module can send the first signal to a first virtual machine instantiated according to the first hypervisor platform. The hypervisor interface module can send the second signal to a second virtual machine instantiated according to the second hypervisor platform.
Abstract:
A transmission system that is used in conjunction with a microturbine engine for propelling an aircraft body, such as a propeller-based fixed-wing aircraft or a rotor-based vertical lift aircraft, or for a wide variety of other applications. The output shaft of the microturbine engine preferably operates at a rotational speed in a range between 72,000 RPM and 150,000 RPM with an output power between 150 HP and 5 HP (and most preferably operates in an extended range between 50,000 RPM and 200,000 RPM with an output power between 200 HP and 5 HP). The two reduction stages provide a reduction ratio preferably having a value of at least 19, and most preferably greater than 24. The transmission system is of small-size preferably having a maximum diameter less than twelve inches. The two stages of the transmission system may comprise any one (or parts of) of a number of configurations, including an in-line lay shaft configuration, an in-line star-star configuration, an offset star-spur configuration, an offset compound idler configuration, an inline traction-internal gear configuration, and an inline traction-planetary gear configuration. Preferably, the input stage of the transmission system is self-equilibrating such that first shaft can be supported without bearings and is operably coupled to the output shaft of the microturbine engine by an outside diameter piloted spline coupling mechanism. For vertical lift applications, a single traction stage along with a bevel gear assembly or other shaft transmission mechanism can be used to provide the necessary RPM reduction.
Abstract:
An induction furnace apparatus and method for reducing the magnetic field produced by the operation of the furnace. The induction furnace including a refractory vessel, an induction coil, and an outer shell having a layer of metallic and magnetically permeable material. The metallic and magnetically permeable material comprising a plurality of elements having a shape and size that is chosen to maximize the packing density of elements throughout the layer. The outer shell further including a top, base, and sidewall arranged about the refractory vessel such that the metallic and magnetically permeable material is formed between the refractory vessel and the outer shell. The invention provides a method for casting metallic and magnetically permeable material with or without a non-conductive matrix. The castings can be formed into inserts or incorporated into the top, base, and side wall of the outer shell. The invention includes inserts comprising metallic and magnetically permeable material located in a space formed between the refractory vessel and the outer shell.
Abstract:
A sling to hold and support a pillow or other stuffing material for use by patients during their recovery period from major surgical procedures such as cardiac, abdominal or pelvic surgical procedures. The sling supports the pillow or other stuffing material from the patient in a position to enable the patient to easily and quickly use the pillow or stuffing material as a "cough pillow". Supporting the "cough pillow" in close proximity to the area on which the surgical procedure is formed and in a position for ready access and grasping by the patient, enables the patient to have free use of their hands and upper extremities but yet maintains the pillow or stuffing material in position for immediate use. The sling includes a casing constructed of flexible, fabric-like material which may be rectangular in form or other desired shapes with one surface of the casing having an opening to enable insertion of a conventional hospital pillow which has been folded or other stuffing material such as "fiberfill" or other similar material. The casing is provided with an attachment strap or straps to secure the sling to a patient in close proximity to the area of a surgical procedure and in a position for ready access by the patient thus enabling the patient to use the sling and pillow or stuffing material as a "cough pillow" especially when a cough response occurs unexpectedly and spontaneously.
Abstract:
A pump system, particularly suitable for pumping wet mixes and slurries, achieves an output of pumped material substantially free from pulsations or fluctuations by control movement of power pistons (12A,12B) within power cylinders (10A, 10B). The power pistons (12A,12B) are connected by piston rods (14A,14B) to pumping pistons (16A,16B) which suck material to be pumped in through valves (20A,20B) and out through valves (22A,22B) into a delivery pipe (26). A closed loop (32) connects annular chambers (13A,13B) of the power cylinders (10A,10B), and a continuously operating pump (P2) feeds the closed loop (32). The power pistons (12A,12B) on their suction strokes move faster than on the delivery strokes, whereby one or other or both pistons (12A,12B) are always moving forwards. Control adequate to achieve a smooth delivery of pumped material is achieved by providing sensing valves (PVA1,PVA2, PVB1,PVB2) on each power cylinder (10A,10B), these valves being arranged to be actuated at different positions of the power piston (12A,12B) within the cylinder. The sensing valves pass signals to check valves (CV1,CV2) to vent and close the closed loop (32) in response to actuation of the sensing valves and thus to control movement of the power pistons in the cylinders.
Abstract:
A novel antibiotic designated herein MM 17880 may be obtained from the cultivation of strains of Streptomyces olivaceus and related organisms. In addition to being potent antibacterial agents, MM 17880 and its salts inhibit .beta.-lactamase obtained from many organisms so that it shows a synergistic antibacterical effect when combined with .beta.-lactam antibiotics.
Abstract:
In one embodiment, a processor-readable medium can be configured to store code representing instructions to be executed by a processor. The code can include code to receive a request to change a value representing a number of data center units included in a set of data center units assigned to a user. Each of the data center units from the set of data center units can be associated with hardware resources managed based on a set of predefined hardware resource limit values. The code can include code to determine, in response to the request, whether hardware resources of a data center unit mutually exclusive from hardware resources of the set of data center units and managed based on the set of predefined resource limit values is available for assignment to the user when the request to change is an increase request.
Abstract:
A pressure-compensated cutter assembly for a tunnel boring machine includes a shaft a cutter ring assembly rotatably mounted on the shaft, and first and second end retainers non-rotatably attached to the shaft. Rotary seal groups, immersed in lubricant, provide a moving seal between the rotating cutter ring assembly and the end retainers. A movable piston member is exposed to ambient pressures, and contacts the lubricant, such that increasing ambient pressure will increase the lubricant pressure, thereby keeping the pressure differential across the seal small. In one embodiment, the piston is a floating retainer portion. In another embodiment, the piston is an annular piston, and in another embodiment, the piston is a plurality of smaller pistons disposed in the first retainer.
Abstract:
In one embodiment, a processor-readable medium can be configured to store code representing instructions to be executed by a processor. The code can include code to receive an indicator that a set of virtual resources has been identified for quarantine at a portion of a data center. The code can also include code to execute, during at least a portion of a quarantine time period, at least a portion of a virtual resource from the set of virtual resources at a quarantined portion of hardware of the data center that is dedicated to execute the set of virtual resources in response to the indicator and not execute virtual resources associated with non-quarantine operation.
Abstract:
In one embodiment, a processor-readable medium can be configured to store code representing instructions to be executed by a processor. The code can include code to receive a request to change a value representing a number of data center units included in a set of data center units assigned to a user. Each of the data center units from the set of data center units can be associated with hardware resources managed based on a set of predefined hardware resource limit values. The code can include code to determine, in response to the request, whether hardware resources of a data center unit mutually exclusive from hardware resources of the set of data center units and managed based on the set of predefined resource limit values is available for assignment to the user when the request to change is an increase request.