Abstract: A system and method are disclosed for cold working an additively manufactured component including a platform, a deposition robot, and a roller assembly. The platform is configured to support a three-dimensional object. The deposition robot is configured to deposit successive material layers that, after deposition, form the three-dimensional object. The deposition robot includes an arm having a deposition end and a deposition head coupled to the deposition end of the arm. The deposition head is configured to deposit a new material later of the successive material layers. The roller assembly is disposed around the new material layer and configured to compress a lateral thickness of the new material layer after the new material layer has been deposited by the deposition robot.

Abstract: A short-wave infra-red, SWIR, radiation detection device comprises: a first metallic layer providing a first set of connections from a readout circuit to respective cells of a matrix, the metallic layer reflecting SWIR wavelength radiation. Each matrix cell comprises at least one stack of layers including: a first layer of doped semiconductor material formed on the first metallic layer; an at least partially microcrystalline semiconductor layer formed over the first doped layer; a second layer of semiconductor material formed on the microcrystalline semiconductor layer; at least one microcrystalline semiconductor layer; and in some embodiments a second metallic layer interfacing the microcrystalline semiconductor layer(s), the interface being responsive to incident SWIR radiation to generate carriers within the stack. The stack has a thickness T=?/2N between reflective surfaces of the first and second metallic layers.

Abstract: A software and hardware facility persistently maintains metrics on directories at different levels within a tree of a filesystem. The facility hierarchically aggregates attributes of files contained by directories and stores them as metric values in inode date of each directory within a tree. The stored metric values represent summed or otherwise aggregated data from the descendant directories and files. The metric values are utilized to provide representative compositional samplings of data in the filesystem tree structure. Based on the metric value in its inode data, each directory is weighted in a manner that determines the likelihood that each file sample is taken from that directory.

Abstract: A semiconductor photomultiplier includes a microcell, a photosensitive diode, and an anti-reflective coating. The microcell has an insulating layer formed over an active region. The photosensitive diode is formed in the active region beneath the insulating layer. The anti-reflective coating is provided on the insulating layer.

Abstract: A software and hardware facility persistently maintains metrics on directories at different levels within a tree of a filesystem. The facility hierarchically aggregates attributes of files contained by directories and stores them as metric values in each directory within a tree. The stored values represent summed or otherwise aggregated data from the descendant directories and files. The metric values represent aggregated attributes such as checksums, MIN and/or MAX aggregates, sameness bits, bloom filter aggregates, queryable user tags, moving average aggregates, b-tree aggregates, etc.

Abstract: An electromagnetic radiation detection device comprises a matrix having a plurality of N rows divided into a plurality of M columns of cells, each cell comprising a plurality of diode segments responsive to electromagnetic radiation incident on said device. A scan driver provides a plurality of N scan line signals to respective rows of said matrix, each for enabling charge values from cells of a selected row of said matrix to be read. A reader reads a plurality of M variable charge value signals from respective columns of said matrix, each corresponding to a cell within a selected row of said matrix. Each diode segment is connected to a drive voltage sufficient to operate each diode segment in avalanche multiplication Geiger mode; and connected in series with an avalanche quenching resistor to said reader.

Abstract: An automatic safety window apparatus comprising: an alarm and transmitter unit located remotely from the window unit, the alarm and transmitter unit configured to transmit an open window signal when a threshold level of a gas or smoke is reached and to initiate an alarm; a window unit configured to attach to the interior of a window and face the interior of a room the window is located in, the window unit comprising: a chain actuator, the chain actuator comprising a chain that can exert a pushing force; a fan housing; a control board located in the fan housing, the control board comprising a receiver and a CPU, the CPU in signal communication with the receiver, and CPU in signal communication with the chain actuator, and the receiver in wireless communication with the alarm and transmitter unit, the CPU configured to transmit a signal to the chain actuator to open the window sash when the receiver receives an open window signal from the alarm and transmitter unit; wherein the chain actuator is configured to o

Abstract: A software and hardware facility persistently maintains metrics on directories at different levels within a tree of a filesystem. The facility hierarchically aggregates attributes of files contained by directories and stores them as metric values in each directory within a tree. The stored values represent summed or otherwise aggregated data from the descendant directories and files. The metric values represent aggregated attributes such as total space consumed by a directory and all the descendant directories and files, total number of files within a directory, total data blocks used by a directory and its descendant directories and data files, etc.

Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads; a first node of each output load is common to one of the photosensitive elements and the corresponding quench element; and a third electrode provides an output signal from the photosensitive elements; the third electrode is coupled to a second node of the respective output loads; the outputs loads fully or partially correct an overshoot of the output signal on the third electrode.

Abstract: An electromagnetic radiation detection device comprises a matrix having a plurality of N rows divided into a plurality of M columns of cells, each cell comprising a plurality of diode segments responsive to electromagnetic radiation incident on said device. A scan driver provides a plurality of N scan line signals to respective rows of said matrix, each for enabling charge values from cells of a selected row of said matrix to be read. A reader reads a plurality of M variable charge value signals from respective columns of said matrix, each corresponding to a cell within a selected row of said matrix. Each diode segment is connected to a drive voltage sufficient to operate each diode segment in avalanche multiplication Geiger mode; and connected in series with an avalanche quenching resistor to said reader.

Abstract: A semiconductor photomultiplier includes a microcell, a photosensitive diode, and an anti-reflective coating. The microcell has an insulating layer formed over an active region. The photosensitive diode is formed in the active region beneath the insulating layer. The anti-reflective coating is provided on the insulating layer.

Abstract: The present disclosure relates to a process of manufacturing a photomultiplier microcell. The process comprises providing an insulating layer over an active region; and implanting a dopant through the insulating layer to form a photosensitive diode in the active region. The insulating layer once formed is retained over the active region throughout the manufacturing process.

Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads; a first node of each output load is common to one of the photosensitive elements and the corresponding quench element; and a third electrode provides an output signal from the photosensitive elements; the third electrode is coupled to a second node of the respective output loads; the outputs loads fully or partially correct an overshoot of the output signal on the third electrode.

Abstract: An automatic safety window apparatus comprising: an alarm and transmitter unit located remotely from the window unit, the alarm and transmitter unit configured to transmit an open window signal when a threshold level of a gas or smoke is reached and to initiate an alarm; a window unit configured to attach to the interior of a window and face the interior of a room the window is located in, the window unit comprising: a chain actuator, the chain actuator comprising a chain that can exert a pushing force; a fan housing; a control board located in the fan housing, the control board comprising a receiver and a CPU, the CPU in signal communication with the receiver, and CPU in signal communication with the chain actuator, and the receiver in wireless communication with the alarm and transmitter unit, the CPU configured to transmit a signal to the chain actuator to open the window sash when the receiver receives an open window signal from the alarm and transmitter unit; wherein the chain actuator is configured to o

Abstract: A flash alert apparatus comprising: a first smoke alarm, the first smoke alarm comprising a motion sensor and a wireless transmitter; a first alerting component configurable to be wireless communication and synchronized with the first smoke alarm, the first alerting component comprising: a light configured to flash; and a first wireless receiver configurable to be in wireless communication with the first wireless transmitter. A flash alert system comprising: a first smoke alarm installed on a wall or ceiling, the first smoke alarm comprising a motion sensor and a first wireless transmitter; a first alerting component in wireless communication and synchronized with the first smoke alarm and attached to the inside of an outside window such that the light will be seen outdoors when it flashes, the first alerting component comprising: a first light configured to flash; and a first wireless receiver in signal communication with the first wireless transmitter.

Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads each having a capacitive load operably coupled to a resisitive load in a parallel configuration between first and second nodes; each first node is common to one of the photosensitive elements and the corresponding quench element; and a third electrode coupled to the second nodes of the output loads to provide an output signal from the photosensitive elements. The outputs loads fully or partially correct an overshoot of an output signal on the third electrode.

Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads each having a capacitive load operably coupled to a resisitive load in a parallel configuration between first and second nodes; each first node is common to one of the photosensitive elements and the corresponding quench element; and a third electrode coupled to the second nodes of the output loads to provide an output signal from the photosensitive elements. The outputs loads fully or partially correct an overshoot of an output signal on the third electrode.

Abstract: A silicon photomultiplier device is provided. The device comprises a plurality of photosensitive cells each having a photo-detector, a quench resistive load and a first stage capacitive load. The device is arranged in a three electrode connection configuration comprising first and second electrodes arranged to operably provide a biasing of the device and a third electrode operably used to readout a signal from the device. A second stage capacitive load is operably coupled to two or more photosensitive cells.

Abstract: A software and hardware facility persistently maintains metrics on directories at different levels within a tree of a filesystem. The facility hierarchically aggregates attributes of files contained by directories and stores them as metric values in each directory within a tree. The stored values represent summed or otherwise aggregated data from the descendant directories and files. The metric values represent aggregated attributes such as checksums, MIN and/or MAX aggregates, sameness bits, bloom filter aggregates, queryable user tags, moving average aggregates, b-tree aggregates, etc.

Abstract: A an automatic safety window apparatus comprising: a window unit configured to attach to the interior of a window, the window unit comprising: an actuator; a linkage in operable communication with the actuator, and configured to attach to a window sash; where the actuator is configured to open the window sash. An automatic safety window apparatus comprising: a window unit configured to attach to the interior of a window, the window unit comprising: an actuator; an alarm and transmitter unit in signal communication with the actuator; a linkage in operable communication with the actuator, and configured to attach to a window sash; where the actuator is configured to open the window sash when the alarm and transmitter unit detects gas levels above a threshold level.