摘要:
Systems and methods for digital negatives are described. In one aspect, a digital negative is created on a computing device from a digital image. The digital image is linked to the digital negative. In response to a save operation associated with the digital image, a new digital image is generated and bi-directionally connected to the digital negative. In response to a revert operation associated with the new digital image, contents of the new digital image are replaced with contents of the digital negative.
摘要:
Systems and methods for digital negatives are described. In one aspect, a digital negative is created on a computing device from a digital image. The digital image is linked to the digital negative. In response to a save operation associated with the digital image, a new digital image is generated and bi-directionally connected to the digital negative. In response to a revert operation associated with the new digital image, contents of the new digital image are replaced with contents of the digital negative.
摘要:
The invention generally features compositions and methods for expanding long term hematopoietic stem cells (HSCs) in a population of cells. In particular, the invention relates to a method of expanding long term HSCs by culturing an initial population of HSCs with macrophages that promote self-renewal of long term HSCs. The expanded cell population provides a source of cells for therapeutic treatments utilizing HSC transplantation.
摘要:
In this disclosure, a process of imaging a target object using magnetic resonance (MR) includes an MRI scanner scanning the target object using a first transmit RF pulse. A processor associated with the MRI scanner can acquire magnitude and/or phase data associated with a first RF signal produced (or echoed) by the target object responsive to the MRI scan. The processor can determine a second transmit RF pulse for use to scan the target object based on the acquired data and according to a given phase criterion. The phase criterion can be configured to enforce mitigation of a phase distribution estimated based on the acquired data.
摘要:
According to some embodiments of the present invention, a battery heating circuit includes a switch unit, a switching control module, a damping component, an energy storage circuit, and an energy superposition unit, wherein: the energy storage circuit is connected with the battery and includes a current storage component and a charge storage component; the damping component, the switch unit, the current storage component, and the charge storage component are connected in series; the switching control module is connected with the switch unit, and configured to control ON/OFF of the switch unit, so as to control the energy flowing between the battery and the energy storage circuit.
摘要:
An automatic winding device for cell core includes a mounting seat, a locking cap mounted on one end of the mounting seat, a winding assembly driving mechanism mounted on the other end of the mounting seat and a winding assembly. The winding assembly includes two winding needles and two winding plates. One end of the winding needles is fixed to the winding driving mechanism and the other end is opposite to the locking cap. One end of the winding plates is fixed to the winding driving mechanism and the other end thereof opposite to the locking cap. The winding plates are disposed on opposing sides of the pair of winding needles and separably contact the pair of winding needles. The winding needles are held together by complementary concave and convex portions, and a groove and a ring groove are formed in the locking cap.
摘要:
The present invention teaches methods and systems for detecting internal battery abnormalities during charging and discharging states. The embodiments of the invention includes a circuit for determining charging and/or discharging state of the battery, a circuit for sampling the battery voltage at sequential time points, a circuit for measuring the decline of the voltage, a counter for counting Tdec the time while the voltage is in decline, a circuit for measuring the rate of the decrease of the voltage, a circuit for producing an indicator for internal abnormality if one or more of the following conditions is met: (a) the battery is in the charging state and Tdec exceeds a predetermined time; (b) the battery is in the charging state and the decrease of the voltage exceeds a predetermined voltage; and (c) the battery is in the discharging state and the rate of the decrease of the voltage exceeds a predetermined decline rate.
摘要:
The present invention provides a method of eliminating background noise and a device using the same. The method of eliminating background noise comprises the steps of: detecting an effective value of a received audio signal, and generating an average power signal of the received audio signal; generating a noise eliminating control signal by comparing the average power signal with a first threshold; and eliminating the noise, and amplifying the voice signal using the noise eliminating control signal. A device of eliminating background noise comprises a detecting unit, which is configured to detect an effective value, and generate an average power signal of the received audio signal; a first signal generating unit, which is configured to generate a noise eliminating control signal; and an amplifying unit, which is configured to eliminate the noise, and amplify the voice signal.
摘要:
A multi-touch detection system includes a touch-sensitive device, a microcontroller coupled to the touch sensitive device, and an electronic application coupled to the microcontroller. The touch-sensitive device includes multiple electrically isolated conductive regions and the conductive regions are configured to detect multiple contacts from a user simultaneously and generate respective output signals for the multiple user contacts. The microcontroller is configured to receive the output signals from the conductive regions and generate one or more control signals in response to the output signals. The electronic application includes a screen displaying multiple human-machine interactive objects and a signal processor. The signal processor is configured to receive the control signals from the microcontroller and alter the appearance of the human-machine interactive objects on the screen in accordance with the control signals.
摘要:
Certain embodiments of the present invention provide a battery heating circuit, comprising a plurality of switch units (1), a switching control module (100), a damping component R1, an energy storage circuit, and a polarity inversion unit (101), wherein: the energy storage circuit is connected with the battery, and comprises a current storage component L1 and a plurality of charge storage components C1; the plurality of charge storage components C1 are connected with the plurality of switch units (1) in series in one-to-one correspondence to form a plurality of branches; the plurality of branches are connected in parallel with each other and then connected with the current storage component L1 and damping component R1 in series; the switching control module (100) is connected with the switch units (1), and is configured to control ON/OFF of the switch units (1), so that the energy flows back-and-forth between the battery and the energy storage circuit when the switch units (1) switch on; the polarity inversion unit (101) is connected with the energy storage circuit, and is configured to invert the voltage polarity of the plurality of charge storage components C1 after the switch units (1) switch from ON state to OFF state. For example, the heating circuit provided in certain embodiments of the present invention can improve charge/discharge performance of the battery, as well as safety and work efficiency in the battery heating process.