摘要:
Disclosed are a composition and process useful for drawing stainless steel and nickel alloy wire and rods. The wire or rod is contacted with an aqueous solution consisting essentially of at least one alkali metal borate and at least one alkali metal sulphate, which solution is essentially free of silicate and chloride.
摘要:
The disclosure relates to Substituted Piperidin-4-amino-Type Compounds of Formula (I) and pharmaceutically acceptable salts and solvates thereof wherein R1, R2, R3, Q1, Q2, E1, E2, A, B, D, W, Z, a, b, n, and x are as defined herein, compositions comprising an effective amount of a Substituted Piperidin-4-amino-Type Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted Piperidin-4-amino-Type Compound.
摘要:
Sonar rendering systems and methods are described herein. One example is an apparatus that includes a transducer element, position sensing circuitry, processing circuitry, and a display device. The processing circuitry may be configured to receive raw sonar data and positioning data, convert the raw sonar data into range cell data based at least on amplitudes of the return echoes, make a location-based association between the raw sonar data and the positioning data, plot the range cell data based on respective positions derived from the positioning data and rotate the range cell data based on a direction of movement of the watercraft to generate adjusted range cell data. The processing circuitry may be further configured to convert the adjusted range cell data into sonar image data, and cause the display device to render the sonar image data with a presentation of a geographic map.
摘要:
An illumination device comprises a housing, a power supply and at least one light source powered by the power supply. The at least one light source is adapted to emit radiation from the housing at one or more therapeutic wavelengths. The illumination device is positioned in proximity to an area for applying radiation to the area for a time and intensity sufficient to have a bacteriocidal effect.
摘要:
In various embodiments, a system for controlling radiotherapy equipment in a treatment environment includes a controller for receiving, from one or more image capture devices, data indicating the position of one or more objects in the treatment environment. Based on the position data, the controller defines one or more exclusionary zones from which the radiotherapy equipment is excluded. Each zone has a buffer area surrounding one or more of the objects. The controller further directs the radiotherapy equipment such that a radiotherapy treatment plan is delivered without the equipment entering into the exclusionary zones.
摘要:
A document comprises a body having at least one defined portion therein, each defined portion being represented in the body of the document as a body object, each of the document and each body object therein being rights-managed as protected content based on license terms specified in a digital license. A recipient of the document can render the protected content of each of the document and each body object therein by acquiring the digital license and satisfying the license terms set forth in the digital license.
摘要:
Methods and apparatuses for reducing DC offsets in a communication system are described. In a first aspect, a feedback loop circuit reduces DC offset in a wireless local area network (WLAN) receiver channel. The frequency response of the feedback loop circuit can be variable. In a second aspect, a circuit provides gain control in a WLAN receiver channel. The stored DC offset is subtracted from the receiver channel. First and second automatic gain control (AGC) amplifiers are coupled in respective portions of the receiver channel. In a third aspect, a feedback loop circuit reduces DC offset in a WLAN receiver channel. The feedback loop circuit includes a storage element that samples and stores receiver channel DC offset. The loop is opened, and the DC offset stored in the storage element is subtracted from the receiver channel. Circuits for monitoring DC offset, and for providing control signals for controlling the frequency response of the DC offset reducing circuits are also provided.
摘要:
An internet protocol telephone includes a substrate having an input and an output that are capable of being connected to the internet protocol (IP) network. A relay is disposed on the substrate and is connected between the input and the output of the substrate. The relay includes first and second native FETs that have a threshold voltage of approximately zero volts. Therefore, the relay is nominally turned-on, even when little or no voltage (or power) is applied to the IP telephone substrate, as during the discovery mode of IP telephone operation. During discovery mode, The IP phone is configured to be responsive to extended link pulses and block data packets that are associated with legacy devices. Data packets have a higher signal duration and are more continuous than extended link pulses. The IP phone includes a switchable ground that is connected to the gates of the native devices, and is controlled by a rectifier and filter circuit that are connected to the substrate input. If the IP phone receives legacy data packets during discovery mode, then the high signal duration and continuous nature of the data packets are sufficient to cause the rectifier to generate a rectified signal having sufficient amplitude to activate the switchable ground, so as to ground the gates of the native devices and therefore turn-off the native devices. Therefore, the data packets are rejected and are not passed back to the switch. Extended link pulses have a frequency that is too low to generate a rectified signal that is sufficient to activate the switchable ground, and therefore the native devices remain turned-on. Accordingly, the extended link pulses are passed back to the switch.
摘要:
An Ethernet network comprising multi-rate link partners that may be operable to communicate symmetrically and/or asymmetrically via any of a plurality of channels. The multi-rate link partners may monitor one or more factors that may affect their power consumption and/or energy efficiency. During operation, an uplink and/or downlink communication rate may be configured, based on the monitoring, to enable asymmetrical data rate operation. The monitored factors may comprise prior or current data rates, bit error rate, packet error rate, latency, queued data and/or tasks, for example. The multi-rate link partners may comprise a twisted pair PHY, an optical PHY or a backplane PHY. In order to reduce power consumption and/or improve energy efficiency, one or more of the uplink communication rate and/or the downlink communication rate may be lowered. The power consumption may be reduced for a multi-rate PHY, a host computer and/or a MAC controller.
摘要:
Realtime beam shape adjustment in response to (for example) online CT scanning of a patient during treatment is assisted by the radiotherapy apparatus comprising a source adapted to emit a beam of therapeutic radiation, a collimator for delimiting the radiation beam, the collimator comprising a plurality of leaves arranged alongside each other and be moveable longitudinally so that the tips of the leaves define a variable edge of the collimator, the leaves being mounted on a support that is moveable laterally with respect to the leaves. In this way, movements of the tumor that are perpendicular to the direction of leaf motion can be accommodated by simply moving the collimator bodily so as to accommodate this. It is preferred that the apparatus also includes a control means adapted to receive information as to the location of the target volume, and, on the basis of that information, control the longitudinal positions of the leaves and the lateral position of the support. It is also preferred that the support tilts as it moves laterally along a path. This can be achieved, by example, by bearings that are moveable on suitable guides, or by mounting the support on a plurality of pivot arms of unequal lengths. The lengths of such pivot arms can be adjusted as necessary.