摘要:
Approaches to automatically classifying a cardiac response to pacing involve discriminating between a captured response and non-capture with intrinsic activation. A capture detection system senses for morphological characteristics of a cardiac signal associated with the pacing pulse. The cardiac signal may be sensed using a defibrillation electrode during one or more time intervals following delivery of the pacing pulse. If a first characteristic of the cardiac signal achieves a threshold value, the system continues to sense the cardiac signal and detects a second characteristic. The cardiac pacing response is determined based on at least one of the first and the second cardiac signal characteristics.
摘要:
Cardiac monitoring and/or stimulation methods and systems provide monitoring, diagnosis, and defibrillation and/or pacing therapies. A signal processor receives a plurality of composite signals associated with a plurality of sources, performs a source separation, and produces one or more cardiac signal vectors associated with all or a portion of one or more cardiac activation sequences based on the source separation. A method of signal separation involves detecting a change in a characteristic of the cardiac signal vector relative to a baseline. One or more vectors and/or activation sequences may be selected, and information associated with the vectors and/or activation sequences may be stored and tracked.
摘要:
A method and apparatus for managing a run-time environment is provided for improving performance and scalability of networked computer systems. In one example of the invention, a method starts by loading a class file, the class file specifying a class that includes a static class variable and a static initializer to initialize the static class variable. The static initializer is then invoked to initialize the static class variable. The class and the initialized static class variable are then saved in a second class file. The second class file is then loaded into a shared memory, the second class file including the class and the initialized static class variable.
摘要:
An invariant numeric reference format is defined in a run-time environment for both run-time and storage use. A numeric reference to an object encodes the location of the object as an integral offset from an implicit machine pointer. In environments where the size of contiguous virtual memory segments is limited, objects are stored in a number of fixed-size contiguous chunks in virtual memory called pages. A page-offset numeric reference includes an offset and a page number, which is used to index a page map that contains a page pointer to the beginning of the page. Page-offset numeric references are dereferenced by adding the offset in the numeric reference to the page pointer obtained from the page map based on the page number in the numeric reference.
摘要:
In a paged memory system, memory is allocated as pages and aligned on 2N-byte boundaries that are at least as large as the largest page size. Memory management information about the page is stored in a page header at the beginning of the page, while the remaining space of the page is devoted for storing objects. The page header for the page on which at least some of the object is stored is located by masking off the lower N-bits of the machine pointer. These operation can be applied to converting machine pointers into and out of page-offset numeric references.
摘要:
Spinal pedicle screws are placed into vertebrae from the same approach and the same anterior, anterolateral or anterior/lateral exposure that is used for an anterior/lateral spine operation, during the same surgical procedure as the spine operation. Once the anterior spine operation is complete, pedicle screws are placed into the vertebrae with a front-to-back trajectory, in a generally anterior, lateral, anterolateral, or contralateral trajectory, avoiding the need for a second operation exposing the posterior spine.
摘要:
The present invention provides apparatus, systems and methods for displaying to each of a plurality of users, upon each user's request, as to each particular parcel to be shipped by each user, the carriers that provide delivery notification service options, including electronic mail delivery notification and verbal delivery notification, wherein each user accesses the present invention over a global communications network using a client computer device, and wherein each user has an individual electronic connection to the global communications network. The present invention further provides apparatus, systems and methods for identifying to each of the users, upon each user's request, as to each of the particular parcels to be shipped by the particular user, a service charge for each delivery notification service option, including electronic mail delivery notification and verbal delivery notification for the particular package to be shipped by the particular user as to each carrier that supports electronic mail delivery notification.
摘要:
An overhung external spur gear positive displacement pump for hot oil or deep fryer applications is disclosed. The external gear pump includes a thermoplastic casing that includes a through bore for accommodating a drive shaft that leads to a pump chamber that accommodates a drive gear and a driven gear. The thermoplastic casing is connected to a stationary pin. The thermoplastic casing also includes a proximal end coupled to a motor and a distal end coupled to a thermoplastic head. The gears are enclosed in the pump chamber by the thermoplastic head. The stationary pin is accommodated within the driven gear and the drive shaft is coupled to the drive gear. The thermoplastic head is provided in the form of a plate with a plurality of holes for accommodating fasteners that couple the thermoplastic head to the distal end of the thermoplastic casing.
摘要:
Approaches for adjusting the pacing energy delivered by a pacemaker are provided. Adjusting the pacing energy involves performing a plurality of capture threshold tests, each capture threshold test measuring a capture threshold of the heart. One or more measured captured thresholds are selected, including at least one capture threshold that is higher relative to other measured capture thresholds acquired by the plurality of capture threshold tests. The pacing energy is adjusted based on the one or more selected capture thresholds.
摘要:
A new database design is implemented in which everything in the database is modeled with primitives, including the links and nodes for a graph tuple store. A query syntax provides a nested tree of constraints with a single global schema. Various optimization techniques for queries and replication techniques are also 10 described.