摘要:
A TE011 cavity filter assembly is disclosed. The system includes at least one resonator operating in TE011 mode having a resonant frequency. The at least one resonator may include a cavity comprising an inner diameter and a cavity length. The at least one resonator may also include a first metal disc inside the cavity. The first metal disc may include a disc diameter and a void in the metal disc, which includes a void diameter and a void depth. The inner diameter of the cavity may be greater than the disc diameter creating a gap with a gap width and a gap depth. The TE011 cavity filter assembly may further include positive coupling.
摘要:
Provided herein are compounds of formula I: wherein A, B, X, R1, R2 and subscript n are as defined in the following disclosure. Compositions comprising the compounds are also provided, as well as methods for their use, for example, in treatment of type 2 diabetes and type 2 diabetes-related conditions.
摘要:
This invention describes methods and pharmaceutical compositions for combinational cancer treatments that are capable of inducing JNK phosphorylation and induce programmed cell death. It also identified genes as target for anti-cancer drug development and enhancement of the chemotherapeutic drug effect for the treatment of cancer. This invention points to a novel method and principle for a new avenue of developing more efficient and low or non cytotoxic cancer treatment.
摘要:
A microwave cavity filter is configured for operation in the dual TE22N mode to realize a very high Q factor at very high frequency ranges. The microwave filter is formed from using one or more cylindrical cavities in which two orthogonal field polarizations of the TE22N mode are excited and coupled together by means of a coupling element. Different combinations of inter-cavity irises provide for both direct and cross-coupling of aligned field polarizations in adjacent cavities, as required, to realize complex filter functions. The irises may be formed in either a side or end wall of the cavities for both collinear and planar mount configuration. Negative mode coupling also allows for transmission zeros to be realized on either side of the filter passband.
摘要:
A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include at least a single piece housing. The single piece housing including a plurality of steps. The plurality of mounting steps is formed by at least removing a preselected amount of housing material at predetermined locations on the interior surface. At least some of the mounting steps are used to mount at least some of the plurality of internal operating components to the housing.
摘要:
The present invention provides an apparatus and method for controlling an accelerator for electric vehicles. The method comprises steps of: acquiring an actual accelerator pedal depth value and a current vehicle speed; determining a maximum output torque of motor under the current vehicle speed based on the current vehicle speed; and controlling the output torque of motor in such a way that the growth rate of the output torque higher than that of the actual accelerator pedal depth value at the beginning and then closed to that of the actual accelerator pedal depth value during the actual accelerator pedal depth value growing. The invention makes the output torque grown rapidly within the shallow range of accelerator pedal depth, while makes the output torque grown closed to that of the accelerator pedal depth within the relative deep range of accelerator pedal depth. Thus during the initial stage of acceleration, the vehicle may rapidly output a bigger torque, with an excellent dynamic response, to improve the driving comfort.
摘要:
A control method of the electromotor comprises: setting a target alternating axis current based on the rotor angular velocity of the electromotor and a target direct axis current based on the torque of the motor; simultaneously detecting three-phase currents and current rotor position angle of the electromotor; converting the three-phase currents to an actual alternating axis current and an actual direct axis current by Park and Clark conversions; inputting the difference between the target current and the actual current to a current loop, outputting the required direct axis current and the required alternating axis current; determining the three phase voltages according to the required direct axis current and alternating axis current and the angle of the electromotor rotor position; obtaining PWM control waveform through three-phase voltages, wherein said PWM control waveform is configured to control the conversion from direct current to alternating current and drives the electromotor.
摘要:
A method and apparatus for improving the image quality obtained by an imaging-based scanner comprising a housing supporting one or more protective windows. The apparatus further comprises at least one scanning arrangement, the scanning arrangement comprising illumination and imaging optics. The illumination and imaging optics form a respective field of view for imaging a target object. A light baffle is attached to the scanning arrangement. The light baffle has an aperture corresponding to each of the illumination and imaging optics such that stray light reflected from the protective windows is absorbed by the light baffle, improving the image quality of the imaging-based scanner.
摘要:
An apparatus and method for controlling energy feedback for electric vehicles includes acquiring an accelerator-pedal travel value, a brake-pedal travel value and a current vehicle speed value, and determining whether the brake-pedal travel value is equal to 0%. Feedback torque based on the current vehicle speed value and the brake-pedal travel value with various conditions is then calculated. Mechanical energy generated by the feedback torque T is converted into electric energy and transmitted to battery of the electric vehicle for storing. Accordingly, the endurance mileage of electric vehicle may be effectively prolonged and the utilization efficiency of battery is improved.
摘要:
A resonator cavity for supporting a plurality of resonant modes and filtering electromagnetic energy includes a cavity and a resonator element with a mounting flange. The cavity is defined by a top end wall, a bottom end wall and a sidewall and has a longitudinal axis along its length is defined. The resonator element is positioned within the cavity along the longitudinal axis and includes a mounting flange. The resonator element is only in physical contact with the cavity through the mounting flange at a mounting location and where at least one resonant mode of the electromagnetic energy exhibits a local minima. The dimensions of the cavity and the resonator element are selected so that the associated electromagnetic energy is defined by an electromagnetic field pattern that substantially repeats itself at least twice along the length of the resonator.