Abstract:
A multi-band antenna is provided that operates in at least two non-harmonically related frequency bands. The antenna includes a ground plane, a cone-shaped relatively high frequency antenna element with a tip of the high frequency antenna disposed adjacent to but electrically isolated from the ground plane with a base of the cone-shaped antenna element extending away from the ground plane, and at least three relatively low frequency antenna elements electrically connected to and extending between the base of the cone-shaped antenna element and the ground plane.
Abstract:
A multi-band antenna is provided that operates in at least two non-harmonically related frequency bands. The antenna includes a low frequency antenna for a relatively low frequency band of the at least two non-harmonically related frequency bands extending on a proximal end from a ground plane along a predominant axis and electrically isolated from the ground plane and a cone-shaped relatively high frequency antenna for a relatively high frequency band of the at least two non-harmonically related frequency bands disposed on and electrically connected to the proximal end of the low frequency antenna with an apex of the high frequency antenna disposed adjacent the ground plane coincident with the proximal end of the low frequency antenna and a base extending away from the ground plane coaxial with the predominant axis. The multi-band antenna further includes a first tubular sleeve extending from the ground plane coaxial with the predominant axis, said tubular sleeve electrically isolated from the ground plane, the low frequency antenna and high frequency antenna and a second tubular sleeve lying coaxial with the predominant axis extending from a marginal edge of the base of the high frequency antenna away from the ground plane, said second tubular sleeve electrically isolated from the high frequency antenna and low frequency antenna.
Abstract:
Methods, systems and computer-usable media for storing program code for generating a customized graphical user interface for specified functions using generic base code are described. The methods include the automatic discovery and rendering of graphical user interface elements. User selected component data associated with the specified functions is stored in one or more structured markup language files, user selected style data is stored in one or more style specification files, and a merged file comprising the component data and the style data is generated. The merged file is converted into one or more executable applications for generating the customized graphical user interface by associating the component data contained in the merged file with generic base code.
Abstract:
A multi-band antenna with a radiator element located between a ring element with a feed leg and at least one ground leg, and a ground plane. The radiator element may be arranged in a substantially parallel orientation with and electrically isolated from the ring element and the ground plane. The antenna elements may be dimensioned for reception of AMPS, UMTS, PCS and SDAR frequency bands. Further, the antenna may include a GPS module.
Abstract:
A self-contained, rechargeable battery pack uses a coulomb-counting control circuit to measure charge received by and taken from the cells and to store a current charge status of those cells. The control circuit controls a charge/discharge pass transistor in the pack to provide overcharge protection. An always-on trickle charge resistor insures that the controller is in operation during charging even when the cells associated with the controller are completely discharged. A Schottky diode is placed across the charge/discharge pass transistor in order to minimize the discharge dropoff voltage between the terminal of the cell and a corresponding external terminal. The present invention considerably lengthens the useful life of nickel-based rechargeable batteries, as measured in terms of both the number of cycles and the available capacity per cycle, while requiring no extra terminals.
Abstract:
An objective of the present disclosure is to acquire embedding vectors in which features of targets fluctuating in price depending on dates are embedded. When a set of texts ni released from a past date to a base date are input, a neural network outputs a classification y{circumflex over ( )}jt indicating whether the price of each target has increased or decreased since the previous date until the base date. An information processing device achieving the neural network trains a model including embedding vectors. That is, the information processing device extracts feature vectors nKi and nVi at two different levels from each text ni released at each date, determines a weight αji, based on the inner product of the feature vector nKi and an embedding vector sj, determines a status mjτ by multiplying the other feature vector nKi by the weight αji and taking the sum, and inputs the status mjτ to a classifier, which is caused to output a classification y{circumflex over ( )}jt.
Abstract:
The invention is applicable to the field of phase type photoelectric distance measurement and provides a calibration method based on phase measurement of a double-wavelength laser tube and a distance measurement device of the double-wavelength laser tube. The method comprises the following steps of: 1, forming an external optical path; 2, forming an internal optical path; and 3, sequentially switching a first light-wave and a second light-wave of light-wave transmitting devices (1 and 2) during operation of the steps 1 and 2 to compare phases of the sequentially-received light-waves of the internal and external optical paths through a receiving device (7), and outputting a phase signal for eliminating a base reference. By the method, aims of phase compensation and calibration are fulfilled, uncertain phase noise which is introduced into a circuit due to environmental change is eliminated, the distance measurement accuracy of laser is improved, the influence of environmental factors on a distance measurement error is reduced, the cost of a system is reduced, and application of a phase type photoelectric distance measurement system in various industries is enhanced.
Abstract:
The present invention discloses a composite magnetic material. The composite magnetic material may comprise an Nd—Fe—B alloy and a Fe-based soft magnetic alloy having the general formula of Fe100-x-y-z-aAxRaSiyBz. A may be at least one element selected from Cu and Au. R may be at least one element selected from the group consisting of Ti, Zr, Hf, Mo, Nb, Ta, W and V. And the x, a, y, and z may satisfy: 0≦x≦3, 0≦a≦10, 0≦y≦20 and 2≦z≦25. The present invention further discloses a method of preparing the composite magnetic material as described above. According to the present invention, the composite magnetic material may have an enhanced magnetic energy product and residual magnetism respectively.
Abstract translation:本发明公开了一种复合磁性材料。 复合磁性材料可以包含Nd-Fe-B合金和具有通式Fe100-x-y-z-aAxRaSiyBz的Fe基软磁合金。 A可以是选自Cu和Au中的至少一种元素。 R可以是选自Ti,Zr,Hf,Mo,Nb,Ta,W和V中的至少一种元素。x,a,y和z可以满足:0 @ x @ 3,0 a @ 10,0 @ y @ 20和2 @ z @ 25。 本发明还公开了如上所述制备复合磁性材料的方法。 根据本发明,复合磁性材料可以分别具有增强的磁能积和剩磁。
Abstract:
A multi-band antenna is provided that operates in at least two non-harmonically related frequency bands. The antenna includes a ground plane, a cone-shaped relatively high frequency antenna element with a tip of the high frequency antenna disposed adjacent to but electrically isolated from the ground plane with a base of the cone-shaped antenna element extending away from the ground plane, and at least three relatively low frequency antenna elements electrically connected to and extending between the base of the cone-shaped antenna element and the ground plane.
Abstract:
A multi-band antenna is provided that operates in at least two non-harmonically related frequency bands. The antenna includes a low frequency antenna for a relatively low frequency band of the at least two non-harmonically related frequency bands extending on a proximal end from a ground plane along a predominant axis and electrically isolated from the ground plane and a cone-shaped relatively high frequency antenna for a relatively high frequency band of the at least two non-harmonically related frequency bands disposed on and electrically connected to the proximal end of the low frequency antenna with an apex of the high frequency antenna disposed adjacent the ground plane coincident with the proximal end of the low frequency antenna and a base extending away from the ground plane coaxial with the predominant axis. The multi-band antenna further includes a first tubular sleeve extending from the ground plane coaxial with the predominant axis, said tubular sleeve electrically isolated from the ground plane, the low frequency antenna and high frequency antenna and a second tubular sleeve lying coaxial with the predominant axis extending from a marginal edge of the base of the high frequency antenna away from the ground plane, said second tubular sleeve electrically isolated from the high frequency antenna and low frequency antenna.