摘要:
A system includes a rack, computing devices coupled to the rack, a rack PDU, and one or more input power cables. The rack PDU includes an enclosure, two or more power input receptacles on the enclosure, and two or more power output receptacles on the enclosure. The output power receptacles supply power to the computing devices. The input power cables are coupled in one or more of the power input receptacles. The input power cables supply electrical power from an electrical power system to the rack PDU.
摘要:
The disclosure describes a cover for a frame for mounting a device above a printed circuit board (PCB) in an electronic device. The cover comprises: a surface to cover a bottom of the display device and to be located on top of a frame section of a frame that is mounted on the PCB and surrounds a surface device on the PCB; a raised region in the surface to allow a part of the surface device to jut above the frame section; and a depressed region in the surface to receive a feature on a bottom of the display device to allow the feature to extend into an interior cavity bounded by the frame section.
摘要:
A switching mode power supply (SMPS) includes a power transistor coupled to the primary winding of transformer and a resistor coupled between the input power source and a control terminal of the power transistor for triggering a primary current flow through the power transistor for providing startup power. A primary side control circuit is configured to regulate the output of the SMPS. A secondary side control circuit is coupled to the secondary winding and being configured to provide a first electrical signal to the secondary winding when an output voltage of the SMPS is less than a first reference voltage, whereupon an awakening signal is induced in the auxiliary winding and causes the primary side control circuit to provide a turn-on signal to the power transistor. The primary side control circuit is configured to enter a standby mode or a normal operating mode in response to the awakening signal.
摘要:
Providing for employing a real time firewall to secure components of an automation control network from unauthorized communication to or from such components is disclosed herein. A monitoring component can inspect at least a portion of an instance of communication directed toward or originating from a component of the automation control network. Such inspection can, e.g., be a deep packet inspection based on information received from a communication request and/or response protocol. A filtering component can selectively admit or deny propagation of the instance of communication based on the inspection and a predetermined security criterion. In such a manner, the subject innovation can provide for limited access to network components from office network machines and for securing components of an automation control network from influence by unauthorized entities.
摘要:
An audio subsystem in a mobile communication device has a speaker. In one implementation, the audio subsystem has a higher-gain power amplifier, a lower-gain power amplifier, and a switching system configured to route signals produced by the lower-gain power amplifier to the speaker while the device is operative in a first mode and configured to route signals produced by the higher-gain power amplifier to the speaker while the device is operative in a second mode. In another implementation, the audio subsystem has a power amplifier coupled to the speaker and a power supply control controlled to provide voltage at a first voltage level to the power amplifier while the device is operative in a first mode and controlled to provide voltage at a second, higher, voltage level to the power amplifier while the device is operative in a second mode.
摘要:
A handheld electronic device may include a portable housing and a shielding container within the portable housing. The shielding container may include a shielding frame and a shielding lid carried thereby. A printed circuit board may be within the shielding container. The shielding frame may include a planar base with at least one opening therein, a pair of opposing side walls integrally formed with the base and extending upwardly therefrom, and a pair of opposing end walls integrally formed with the base and extending upwardly therefrom. Also, the shielding frame may include at least one intermediate partition wall integrally formed with the base and extending upwardly therefrom to define a plurality of container compartments. The partition wall may also extend only partway between the opposing side walls to define at least one partition end gap therewith.
摘要:
Methods of preserving fresh produce with a produce preservative which extends the shelf life of fresh produce, particularly cut fresh produce, and preserves the texture, flavor, appearance, crispness, and color of the fresh produce, particularly the exposed surface of the fresh produce, are provided. The method comprises: providing a solution of produce preservative comprising: water; a preservative cation which is selected from the group consisting of a strontium ion, lithium ion, barium ion, aluminum ion, copper ion, ammonium ion, iron ion, manganese ion, potassium ion, or mixtures thereof; and ascorbate ions, or erythorbate ions; wherein the ascorbate ions or erythorbate ions and the preservative cation are present in an ion ratio of preferably from 0.2:1 to 8:1, more preferably 0.75:1 to 8:1, even more preferably from 1:1 to 4:1, yet more preferably 1.5:1 to 3:1; most preferably 1.1:1 to 2.5:1; and, applying said produce preservative to the produce. The invention also relates to fresh produce preserved with the produce preservatives.
摘要:
A stochastic time-digital converter (STDC) including an input switching circuit, an STDC array, and an encoder. A clock circuit inputs two clock signals into two input terminals of the input switching circuit; the input switching circuit transmits the two clock signals in a cyclic cross-transposition form to two input terminals of the STDC array, and simultaneously outputs a trigger control signal to the encoder; each comparator in the STDC array independently judges the speeds of the two clock signals and sends the judgement results to the encoder for collection and processing; and the encoder outputs the size and positivity or negativity of the phase difference of the two clock signals. The technical solution utilizes the stochastic characteristic of the STDC to double the number of the equivalent comparators in the STDC array, eliminating the effects on the circuitry of device mismatching and processes, power supply voltage, and temperature.
摘要:
The present invention relates to trehalose phosphorylases which are useful for the industrial production of trehalose-analogues and glycosyl phosphates. More specifically, the invention discloses trehalose phosphorylases which are mutated in specific amino acid regions. These specific mutations result in modified substrate specificities of the enzymes. In addition, the present invention discloses a wild type trehalose phosphorylase from the marine organism Caldanaerobacter subterraneus, and mutated types thereof, which are highly thermostable and have a broad acceptor and donor specificity.
摘要:
An electronic mobile device includes a device housing and a spacer supported within the device housing. An outer panel is supported by the spacer, and the outer panel and the spacer together define an internal recess. A display configured to display information is supported by the device housing within the internal recess. A gasket is compressed between the device housing, the spacer, and the outer panel to inhibit debris ingress to the device housing. The gasket has a first side that engages the device housing and a second side that engages the spacer and the outer panel.