摘要:
A multi-stage tracking control system includes at least a main actuator and a microactuator. The tracking control system is switched to a single-stage mode so that the main actuator alone provides tracking. A disturbance signal is applied to the microactuator while in the single-stage mode, and a failure condition of the microactuator is determined based on a position error generated in response to the disturbance signal.
摘要:
Method and circuitry for controlling duty cycle of an input signal towards a desired value comprising a sequence of at least two inverters arranged in series and feedback circuitry. A first inverter is arranged to receive the input signal and a last inverter is arranged to output a signal having the same frequency as the input signal. The output signal is an adjusted version of the input signal. The feedback circuitry is arranged to receive the output signal and comprises a comparing and supplying means. The comparing means compares the output signal with a reference signal indicative of a desired value and generates a feedback signal based on the comparison of the output and reference signal. The supplying means supplies the feedback signal to adjust operating conditions of at least one of the inverters, such that the duty cycle of the output signal is controlled towards the desired value.
摘要:
A window management method, apparatus and a computing device are provided. The window management apparatus comprises a window rendering management device for managing the at least two windows in response to an input operation, to change the size and location of a target window of the at least two windows to which the input operation is directed, and simultaneously adaptively change the size and location of at least one other window of the at least two windows. With the embodiments of the present invention, upon detection of an input operation, a window control operation can be performed on at least two opened windows to change the sizes and locations of at least two opened windows simultaneously. In this way, a plurality of windows can be managed collectively by fewer operations, and the required numbers of user operations can be reduced.
摘要:
An electrical connector (100) for connecting a sheet-like connection member includes an insulating housing (1)provided with a plurality of conductive terminals (2, 3), defining a pair of slot (15) at opposite ends thereof. A pair of retaining members (4) is embedded in the slot (15), each comprises a retaining portion (44) retained in the slot (15), a bending portion (41) and a soldering portion (42) extending from a top edge and a bottom edge thereof respectively. The bending portion (41) and the solder portion (42) extend in an adverse direction and the bending portion is abutting against a top portion of the housing.
摘要:
A card connector adapted for receiving a card which has a notch on a side, comprises an insulating housing defining a card insertion/ejecting direction, a plurality of contacts and an ejector. The ejector comprises a slider movable along the card insertion/ejecting direction, a spring member and a locking member for locking the slider. The slider has a protruding portion for engaging with the notch of the card, the slider is able to move away from the card inserted into the card connector at an original position to allow the protruding portion to leave the notch of the card, and is limited to move away from the card at a final position to lock the protruding portion of the slider in the notch of the card and prevent the card from being pull out at the final position.
摘要:
Compositions and methods for inducing a cardiac muscle phenotype, such as rhythmic contraction and formation of myofibrils, in a cell are described. Disclosed are nucleic acids encoding myofibrillogenesis-inducing RNA (MIR) molecules, RNA molecules (MIR) and RNA-binding proteins that bind to MIR to induce myofibrillogenesis and vectors comprising these nucleic acids. Also included is a method of promoting cardiac muscle differentiation using these compositions.
摘要:
Techniques for managing tiered communication services in a composite communication service are disclosed. Component communication services for providing a composite communication service are arranged into tiers in a structure of the composite communication service. The tiers and order facilitate visualization of composite communication services and assessment of the effects of events which impact a portion of a composite communication service on other portions of the composite communication service, for example. Related data structures and user interfaces are also disclosed.
摘要:
An electrical connector assembly includes a right-angle connector (1) and a pick-up device (2) assembled to the connector (1) to provide a vacuum suction surface. The right-angle connector (1) includes a dielectric housing (10) with a mating portion (11), a mounting face (120), and a pair of locking portions (121). The pick-up device (2) is assembled to the connector (1) in a direction parallel to mounting face (120) and comprises a rectangular base (20) having a substantially planar upper surface (200) and an opposite lower surface (201), and a pair of retaining portions (21) depending down from the lower surface (201) and engaged with the locking portions (121) of the connector (1).
摘要:
High resistance PEDT/PSS buffer layers are provided for use in electroluminescent devices such as, e.g., OLEDs. In accordance with another embodiment, there are provided OLEDs comprising high resistance PEDT/PSS buffer layers. In accordance with a further embodiment, methods have been developed for decreasing the conductivity of a PEDT/PSS layer cast from aqueous solution onto a substrate, by adding a cyclic ether co-solvent to the aqueous solution of PEDT/PSS prior to casting. In one embodiment, there are provided methods for decreasing the inherent conductivity of a PEDT/PSS layer cast onto a substrate so that this material can be used as an intermediate buffer layer in red, green, blue organic light emitting diodes (RGB OLEDs).
摘要:
An electrical contact (2) comprises a mating portion (23), a preload portion (24) extending away from the mating portion, a retention portion (22) extending from the mating portion and a solder portion (21) for soldering the electrical contact to a printed circuit board. The mating portion has a tab resiliently abutting against the housing. The preload portions and the tabs of the electrical contacts ensure a reliable electrical connection between the electrical contacts and electrical elements mating with the electrical contacts.