摘要:
The present disclosure relates trailer hitch devices for towing a trailer behind a vehicle. The present disclosure provides a hitch and associated structures which provide an anti-sway function. More specifically, the present disclosure provides an anti-sway trailer hitch including an anti-sway device for the hitch, wherein the anti-sway device includes: a sway bar attachment member having a cammed surface; and a sway controller having a bias mechanism adapted to bias a travel axis of the trailer toward a travel axis of the towing vehicle through an interaction between the cammed surface of the sway bar attachment member and the bias mechanism.
摘要:
Live attenuated vaccines against brucellosis and infection by other diseases are described. It has been discovered that trans complementation of the Brucella wboA gene can be used to maintain an expression vector in an attenuated Brucella host cell in a vaccinee. Further, heterologous antigens can be expressed using this Brucella platform, thus effecting a multivalent vaccine against Brucella and the disease corresponding to the heterologous antigen.
摘要:
A pile driving control apparatus for a pile driving system includes a hydraulic control system that controls a throttle of a pile driving hammer, and thereby controls an impact velocity of the hammer with a pile. A controller provides a control signal to the hydraulic control system. Based on the control signal, the hydraulic control system controls an impact velocity of the hammer during a subsequent hammer stroke. The controller may determine one or more control parameters such as sound pressure at a sound control location during a hammer stroke, vibration at a vibration control location during a hammer stroke, an impact force imparted to the pile during a hammer stroke, and/or actual pile capacity of the pile, and provide to the hydraulic control system a control signal based on the determined control parameter(s).
摘要:
In one embodiment a method of creating a clustered computing system, comprises storing license information for a computing cluster in a memory module associated with a computing node, wherein the licensing information includes a bundle-type parameter that identifies a characteristic of the cluster and one or more node license parameters that identifies a characteristic of a computing node, initializing the computing cluster in a first computing node, adding one or more available computing nodes to the computing cluster; and activating the computing cluster when the computing cluster includes a number of nodes that complies with the bundle-type parameter.
摘要:
A test system and method for scheduling and running multiple tests on a single system residing in a single test environment. The test system comprises a processor operable to receive a request to run a selected test on the system at a selected start time, and determine a time slot for the selected test. The test system is also operable to identify any scheduled tests to be run on the system within the time slot, and identify any conflicts between the selected test and any scheduled tests. If no scheduled tests are identified or if no conflicts are identified, the processor is operable to schedule the selected test to run on the system at the selected start time. If conflicts are identified, the processor is preferably operable to determine an alternative start time for the selected test that avoids any conflicts. Various exemplary embodiments of the test system and associated method are provided.
摘要:
Live attenuated vaccines against brucellosis are described. New mutant strains of Brucella melitensis have been developed, which are attenuated via deletion of the hfq and/or purEK sites. The purEK deletion site does not include insertion of a kanamycin resistance determinant marker or any other introduced antibiotic resistance marker. The hfq deletion site preferably does not include insertion of a kanamycin resistance determinant marker or any other introduced antibiotic resistance marker.
摘要:
A method and intelligent roaming mobile station for emulating a pre-intelligent roaming scanning routine used by a pre-intelligent roaming mobile station. The method includes the steps of selecting a search scheme from a plurality of search scheme, and restricting an intelligent roaming scanning routine to scan only the service bands within an 800 MHZ spectrum. In response to the selected search scheme, the intelligent roaming mobile station then prioritizes at least one service band operating in the 800 MHZ spectrum into a band scan order. Thereafter, the intelligent roaming mobile station scans for a channel according to the prioritized band scan order, where the channel connects a service provider to the intelligent roaming mobile station according to the selected search scheme.
摘要:
Method of determining a motion of continuous variable velocity for display means, comprising a step of establishing a model of at least one simulated mechanical force and/or torque value from values measured by a sensor, and a second step of solving a newton equation of motion from these simulated mechanical force and/or torque values, wherein the second step allows a simulated velocity to be calculated for the display means.
摘要:
An electrical contact including a head, a tail including an opposing pair of major surfaces and a hole, a body connected at one end thereof to the head and at another end thereof to the tail, a peg arranged adjacent to the hole and to extend perpendicular or substantially perpendicular to one of the opposing pair of major surfaces and including at least one beveled side, and a solder member attached to the tail such that the peg creates and fits in a protrusion in a surface of the solder member when the solder member is attached to the tail, such that a portion of the solder member extends into the hole, and such that the solder member engages the at least one beveled side of the peg.
摘要:
A fifth wheel hitch assembly is provided for use with a kingpin, the hitch assembly including a hitch frame including a throat for receiving the kingpin therein, a jaw member pivotally coupled to the hitch frame and moveable between an open orientation and a closed orientation, and a locking arm having a cooperative relationship with the jaw member. One of the jaw member and locking arm defines a guide surface and another of the jaw member and locking arm includes a follower configured to traverse the guide surface, traverse of the follower along a guide segment of the guide surface directing rotation of the jaw member between the open orientation and the closed orientation, and traverse of the follower along a lock segment directing releasable locking of the jaw member in the closed orientation.