Abstract: System testing is described. An example system testing method includes: acquiring module relationship information for a system under test, the system under test including a plurality of modules, the module relationship information indicating a logical relationship between each two of the plurality of modules; and testing at least two modules in the system under test based on the module relationship information, the at least two modules being associated with each other for the same function implemented by the system under test. By use of the technical solution of the present disclosure, both system and module perspectives can be applied to system integration testing, so as to achieve a more comprehensive system testing coverage and find problems in the system under test as soon as possible, which can help to improve the system testing coverage and system testing efficiency.

Abstract: In an example of the method, a functionalized coating layer is applied in depressions of a patterned flow cell substrate. The depressions are separated by interstitial regions. A primer is grafted to the functionalized coating layer to form a grafted functionalized coating layer in the depressions. A hydrogel is applied on at least the grafted functionalized coating layer.

Abstract: The disclosed embodiments relate to a system that characterizes susceptibility of an inferential model to follow signal degradation. During operation, the system receives a set of time-series signals associated with sensors in a monitored system during normal fault-free operation. Next, the system trains the inferential model using the set of time-series signals. The system then characterizes susceptibility of the inferential model to follow signal degradation. During this process, the system adds degradation to a signal in the set of time-series signals to produce a degraded signal. Next, the system uses the inferential model to perform prognostic-surveillance operations on the set of time-series signals with the degraded signal. Finally, the system characterizes susceptibility of the inferential model to follow degradation in the signal based on results of the prognostic-surveillance operations.

Abstract: Expandable hip stem implants, systems, and methods of implanting a hip stem during a hip arthroplasty are provided. The implant may include a proximal body having a neck terminating at a free end, a distal stem having a proximal portion coupled to the proximal body and a distal portion, and a plurality of expandable bodies aligned around the distal stem. The plurality of expandable bodies have a collapsed configuration and an expanded configuration such that the plurality of expandable bodies expand radially outward away from one another.

Abstract: Implementations of the present disclosure provide a method and apparatus for failover in a video surveillance system. The video surveillance system includes a plurality of cameras hosted by a plurality of machines. At a first machine, a message indicating that a second machine has failure is received, the first machine and the second machine hosting a first set of cameras and a second set of cameras among the plurality of cameras, respectively; available resources of the first machine and loads of the first and second machines are determined; based on the available resources and the loads, parameters of at least one set of the first and second sets of cameras are configured, to enable the second set of cameras to be taken over by the first machine.

Abstract: Apparatus and method of removing a liner attached to an implanted acetabular shell. A surgical site is accessed where the acetabular shell has already been implanted into a patient. A rim plate having a through opening is placed over the acetabular shell. A pilot hole is then drilled into the attached liner through the opening in the placed rim plate. After the drilling, the rim plate is removed to expose the drilled hole. A removal tool is inserted into the drilled pilot hole. The attached liner is then disengaged from the implanted acetabular shell with the inserted removal tool.

Abstract: Apparatus and method of removing a liner attached to an implanted acetabular shell. A surgical site is accessed where the acetabular shell has already been implanted into a patient. A rim plate having a through opening is placed over the acetabular shell. A pilot hole is then drilled into the attached liner through the opening in the placed rim plate. After the drilling, the rim plate is removed to expose the drilled hole. A removal tool is inserted into the drilled pilot hole. The attached liner is then disengaged from the implanted acetabular shell with the inserted removal tool.

Abstract: A connector includes a metal shell, and an insulation body received in the metal shell and formed with a slot. First and second terminal openings are provided in the insulation body and are separated by a metal sheet inserted into the slot of the insulation body.

Abstract: An acetabular implant for hip arthroplasty includes an acetabular shell to be attached to an acetabulum. The acetabular shell includes an inner surface defining a shell cavity and having a tapered shell section. The acetabular shell includes a tool interlocking structure that mates with a shell insertion tool to inhibit rotation relative to the shell insertion tool. The acetabular shell includes a snap-fit receiver. An acetabular liner is sized and shaped to be disposed in the shell cavity of the acetabular shell. The acetabular liner including an outer surface having a tapered liner section corresponding to the taper of the tapered shell section and engages the tapered shell section to inhibit movement of the acetabular liner relative to the acetabular shell. The acetabular liner includes a snap-fit retainer received by the snap-fit receiver of the acetabular shell to form a snap-fit connection between the acetabular liner and the acetabular shell.

Abstract: An acetabular shell insertion tool with an anti-rotation feature is provided. The insertion tool attaches to an acetabular shell including a center hole having an internal threading and an anti-rotation recess disposed around the center hole and having a predetermined shape. The insertion tool includes an outer shaft and an inner shaft disposed within the outer shaft. The outer shaft has an anti-rotation projection shaped to be received in the anti-rotation recess of the acetabular shell so as to prevent rotation of the outer shaft relative to the acetabular shell, thereby preventing the insertion tool from disengaging from the shell. The inner shaft has a threaded tip adapted to be threaded into the internal threading of the center hole to lock the insertion tool to the acetabular shell.

Abstract: Embodiments of the present application relate to patterned polymer sheets and processes to prepare the same for sequencing applications. In particular, flexible micro- and nano-patterned polymer sheets are prepared and used as a template surface in sequencing reaction and new polish-free methods of forming isolated hydrogel plugs in nanowells are described.

Abstract: The disclosed technology generally describes separating types of data chunks in a copy-on-write/MVCC B+ tree, chunk-based data storage system, and also allocating the sizes of leaf chunks to be smaller than that of other (e.g., internal and root node) chunks. By having leaf chunks separate from node chunks, the probability of having a fully reclaimable (without copying) chunk is increased. Similarly, by having smaller sized leaf chunks relative to node chunks, the probability of having a fully reclaimable (without copying) leaf chunks is increased. The technology thus facilitates more efficient garbage collection.

Abstract: A method, apparatus and computer program product for managing a storage system are provided. For example, in a method, a tree index of the storage system is obtained, where a leaf node among multiple leaf nodes in the tree index comprising a keyword and an attribute of an object among multiple objects in the storage system. Respective attributes of nodes in a set of the multiple leaf nodes in the tree index are obtained, and the set of the multiple leaf nodes having a same parent node. The tree index is updated based on respective attributes of the leaf nodes in the set of the multiple leaf nodes. With the above example implementations, performance of the index of the storage system can be increased, and further overall response speed of the storage system can be improved. Further, there is provided an apparatus and computer program product for managing a storage system.

Abstract: In an example of the method, a functionalized coating layer is applied in depressions of a patterned flow cell substrate. The depressions are separated by interstitial regions. A primer is grafted to the functionalized coating layer to form a grafted functionalized coating layer in the depressions. A hydrogel is applied on at least the grafted functionalized coating layer.

Abstract: In an example of the method, a functionalized coating layer is applied in depressions of a patterned flow cell substrate. The depressions are separated by interstitial regions. A primer is grafted to the functionalized coating layer to form a grafted functionalized coating layer in the depressions. A hydrogel is applied on at least the grafted functionalized coating layer.

Abstract: The disclosed technology generally describes separating types of data chunks in a copy-on-write/MVCC B+ tree, chunk-based data storage system, and also allocating the sizes of leaf chunks to be smaller than that of other (e.g., internal and root node) chunks. By having leaf chunks separate from node chunks, the probability of having a fully reclaimable (without copying) chunk is increased. Similarly, by having smaller sized leaf chunks relative to node chunks, the probability of having a fully reclaimable (without copying) leaf chunks is increased. The technology thus facilitates more efficient garbage collection.

Abstract: The present invention provides a multi-rotor permanent magnet synchronous motor, wherein the motor (100) includes a motor shaft (3) and the main mechanism (1) and the auxiliary mechanism (4) sleeved on the motor shaft (3) in turn which work in parallel; the auxiliary mechanism (4) includes a one-way bearing body (41) sleeved on the motor shaft (3) and auxiliary rotor components (40) sleeved on the one-way bearing body (41). The multi-rotor permanent magnet synchronous motor in the present invention does not need a gear box to drive, and the energy consumption is low. Besides, through the coordinative work of the main structure and the auxiliary mechanism, different torques can be output, so as to output different speeds.

Abstract: Embodiments of the present disclosure provide methods, apparatuses, a system and computer program products for managing storage units. According to embodiments of the present disclosure, it is determined whether a first storage unit allocated at a first node is reclaimable, wherein data in the first storage unit is backed up to a second storage unit at a second node. In response to determining that the first storage unit is reclaimable, a condition to be satisfied for reclaiming the second storage unit is determined. A command indicating the condition is sent to the second node, such that the second node reclaims the second storage unit in response to the condition being satisfied. Moreover, in response to the command being sent, the first storage unit is reclaimed. The embodiments of the present disclosure enable timely reclaiming of storage units, thereby improving utilization of the storage space effectively.

Abstract: The present invention provides a kind of rotor and a motor with the rotor. The rotor comprises a shaft, a magnetic yoke of rotor, several primary permanent magnet groups and several secondary permanent magnet groups. The said several primary permanent magnet groups and the said several secondary permanent magnet groups are alternatively distributed along the circumference of the said magnetic yoke of rotor at the same interval. The projection of the said primary permanent magnet group and that of the said secondary permanent magnet group on a plane vertical to the said shaft are adjacent, and their edges overlap. The present invention can reduce torque pulsation caused by the electromagnetic factors, and increase the external work of torque. Therefore, it has good effects on improving power efficiency of the motor and saving energy.

Abstract: In an example of the method, a functionalized coating layer is applied in depressions of a patterned flow cell substrate. The depressions are separated by interstitial regions. A primer is grafted to the functionalized coating layer to form a grafted functionalized coating layer in the depressions. A hydrogel is applied on at least the grafted functionalized coating layer.