摘要:
A baseband pool device includes a control unit, and a plurality of baseband processing units which are connected one another. The control unit is configured to determine one or more baseband processing units participating in data processing according to a size of data received by the baseband pool device and baseband data processing capabilities of various baseband processing unit, and allocate an identifier of the baseband data to be processed to each baseband processing unit participating in the data processing to construct a data allocation relationship, and respectively transmit the data allocation relationship to the baseband processing units participating in the data processing. The baseband processing units receive the data allocation relationship; and, process the received data according to the data allocation relationship, or transmit the received data to other baseband processing units of the baseband pool device, or receive data processed and then forwarded by other baseband processing units. A method for implementing baseband data distributed switch is also provided. The present invention increases the baseband processing capacity and reduces the cost.
摘要:
A connecting member includes a cable, an enclosure, a shaft assembly member and an elastic member. The cable surrounds the shaft assembly member. The shaft assembly member is rotatablely mounted in the enclosure. The elastic member includes a first end and a second end. The first end is secured to the shaft member, and the second end is secured to the enclosure.
摘要:
A phase shift control method for a boost converter and circuit implementation comprises a master phase and at least one slave phase. A master-phase inductor current flowing through the master phase has a master-phase charge time interval and a master-phase discharge time interval; a slave-phase inductor current flowing through the slave phase has a slave-phase charge time interval and a slave-phase discharge time interval. The method comprises: calculating an ideal switching timing whereat the slave-phase inductor current descends to a zero-current judgment value; obtaining a physical switching timing whereat the slave-phase charge time interval starts; calculating a conduction timing error between the physical switching timing and the ideal switching timing; determining the time length of the slave-phase charge time interval in the same cycle according to the conduction timing error and the master-phase charge time interval.
摘要:
The invention provides a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. The curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2x2+a3x3+a4x4, xε[0,Le], y(x)ε[0,He]. It is possible to partially eliminate the asymmetric deformation due to the difference between abrasion of the upper and lower rolls. Further, closed type abrasion of conventional roll is changed into open type abrasion and box shaped abrasion of conventional roll is eliminated, which eliminating “cat ear” hole and fulfilling the requirements of free ruled rolling.
摘要:
A method for converting a polynomial expression to a data structure for symbolic computation. One or more variables in the polynomial expression may be determined. The variables may be stored in a first array. One or more terms in the polynomial expression may be determined. One or more exponents of the variables in each term may be determined. The exponents may be stored in a second array. One or more coefficients of the terms may be determined. The coefficients may be stored in a third array.
摘要:
The present invention relates to switched-mode power supply module and discloses a ferrite mosaic and a magnetic core structure for passive substrate for switched-mode power supply module. The ferrite mosaic includes a supporting plate and numbers of ferrite units stuck on the supporting plate, with each ferrite unit being rectangular. Wherein the ferrite mosaic comprises air-gaps defined between the ferrite units and ferrite glue polymer composites cured in air-gaps, and the magnetic core structure is finished after cutting, laminating and assembling said ferrite mosaics.
摘要:
An adjustment method of a plane of rotation possesses has a step (S62) of detecting a range of the first X-rays from the X-ray tube 125 positioned at a first position with an X-ray detector 70; a step of moving the X-ray tube from the first the position to a second position; a step of detecting a range of the second X-rays from the X-ray tube positioned at the second the position with the X-ray detector 70; a step (S64) of calculating quantity of adjustment of the X-ray tube 125 and the collimator 126 based on the detected ranges by the first X-rays and the second X-rays.
摘要:
Data having express or implied relationships may be displayed by selecting a starting entity in a data structure, building a relationship tree, and building and optimizing a relationship matrix based on the relationship tree. The optimized relationship matrix may be used to layout and render a graphical image that positions various elements with respect to the starting entity based on the relationships. The distance matrix may be optimized by creating a first distance matrix based on the relationship tree, developing a dissimilarity matrix based on expressed or implied relationships, and multiplying the dissimilarity matrix by a weighting factor to determine a distance matrix that may be optimized by multi-dimensional scaling. An optimized weighting factor may be determined and used to select an optimized distance matrix.
摘要:
Described is a technology, such as implemented in a computational software program, by which a minimal polynomial is efficiently determined for a radical expression over the ring Z of integer numbers or the ring Q of rational numbers. The levels of the radical are grouped into a level permutation group that is used to find a level permutation set. An annihilation polynomial is found based upon the level permutation set. The annihilation polynomial is factored, and a selection mechanism selects the minimal polynomial based upon the annihilation polynomial's factors.
摘要:
A method for performing symbolic computations on a mathematical expression. The mathematical expression may be converted to a tree structure having one or more parent nodes and one or more child nodes. Each parent node may be a mathematical operation. Each child node may be a mathematical expression on which the mathematical operation is performed in a specified order. Each child node may be in a hierarchical relationship to one of the parent nodes. The parent nodes, the child nodes or both may be manipulated to perform a first symbolic computation on the mathematical expression.