598results about How to "Big angle" patented technology

The present invention relates to a laser device comprising at least one large area VCSEL (101) and at least one optical feedback element (201, 301) providing an angular-selective feedback for laser radiation emitted from the laser. The angular-selective feedback is higher for at least one portion of laser radiation emitted at angles θ>0 to the optical axis (601) of the laser than for laser radiation emitted on said optical axis (601). The invention also refers to a method of stabilizing a laser emission of a large area VCSEL in a desired angular distribution (501, 502). With the proposed device and method, the intensity distribution of a large area VCSEL can be stabilized in a desired shape, for example a ring shape.

The invention discloses a method for building a city gas pipe network vulnerability evaluation model. The method comprises the following steps that an evaluation model is built through fuzzy hierarchy comprehensive evaluation; a vulnerability evaluation index weight is determined; a city gas pipe network system fuzzy comprehensive evaluation basic model is built. As the system vulnerability evaluation and traditional risk evaluation are similar and both need to build evaluation index systems according to evaluation purposes, a proper evaluation method is selected to build an evaluation mathematical model, the model is utilized to conduct system vulnerability calculation and vulnerability grading, the quantitative and qualitative combined system vulnerability evaluation is achieved, and a research result of the city gas vulnerability can lay the foundation for improving the level of a Chinese gas pipeline management technology, prolonging the service life of a city gas pipeline and avoiding or reducing sudden invalidation accidents. With the deepening of the vulnerability research, the vulnerability evaluation is introduced in the filed of research of the science of disasters, the point of view of the safety evaluation is made to be wider, the content of the safety evaluation is made to be fuller, and the evaluation result has more practical value.

The invention discloses a wireless charging and power supply method for a wireless sensor network node. A wireless electrical energy transmission system consisting of a charging and power supply host and a node charging and power supply slave is involved, wherein the charging and power supply host is provided with an energy transmission circuit which has adjustable transmission frequency and power, measurable transmission current and a rotary transmission antenna; and the node charging and power supply slave is provided with a wireless coupling receiving circuit, a multidirectional coupling receiving antenna, a charging and power supply voltage detection circuit and a booster circuit. Optimal coupling frequency and optimal transmission power between the transmission circuit and the receiving circuit are found by scanning the transmission frequency and detecting the detection current, an optimal coupling direction between the transmission antenna and the receiving antenna is found by rotating a charging and power supply antenna, and charging and power supply information is exchanged by a wireless communication channel to determine whether charging and power supply are required or not between the host and the slave and determine charging and power supply frequency and power and the direction of the transmission direction. Therefore, the wasting of idle energy sources is avoided when the slave is not charged and supplied with power, and high wireless charging and power supply efficiency, long wireless charging and power supply distance and high wireless charging and power supply speed are ensured.

An image processing device comprising a camera to pick up frame images at the times, a basic template creating portion to create a basic template of a picked-up object in the first image, an image transformation parameter calculating portion to calculate a transformation matrix to execute an image transformation of an object of the first image to an object of the second image, a template transforming portion to create a transformation template by transforming the basic template with the transformation matrix, and a template matching processing portion to execute a template matching processing to the second image with the transformation template to detect the object and to determine that the picked-up object in the second image is identical to the basic template when a matching degree by the matching means is higher than a specified degree.

A chair has a link of a chair back, a link of a chair seat, and a link mechanism that pushes up the link of the chair seat when the link of the chair back is pressed to incline rearward, so that the occupant can take the optimum seating posture without being conscious, thus further improving the comfort in the reclined posture.

The present invention relates to a device (10) for providing a gas composition compensated acoustic measurement of the level of a liquid (16) in a tank (18). The device comprises a transducer (14) arranged outside said liquid for transmitting and receiving acoustic signals, and a waveguide (12) connected to said transducer and extending into the liquid. The device further comprises means for feeding a flow of fluid from said tank into the part of said waveguide which is located above the liquid level. That results in that the gas composition become essentially similar throughout the whole of the waveguide located above the liquid level, whereby the level measurement using the speed of sound in the waveguide, which speed is dependant on gas composition, becomes very accurate.

Several inventions are disclosed. A cell architecture using hexagonal shaped cells is disclosed. The architecture is not limited to hexagonal shaped cells. Cells may be defined by clusters of two or more hexagons, by triangles, by parallelograms, and by other polygons enabling a variety of cell shapes to be accommodated. Polydirectional non-orthogonal three layer metal routing is disclosed. The architecture may be combined with the tri-directional routing for a particularly advantageous design. In the tri-directional routing arraingement, electrical conductors for interconnecting terminals of microelectronic cells of an integrated circuit preferrably extend in three directions that are angularly displaced from each other by 60 DEG . The conductors that extend in the three directions are preferrably formed in three different layers. A method of minimizing wire length in a semiconductor device is disclosed. A method of minimizing intermetal capacitance in a semiconductor device is disclosed. A novel device called a "tri-ister" is disclosed. Triangular devices are disclosed, including triangular NAND gates, triangular AND gates, and triangular OR gates. A triangular op amp and triode are disclosed. A triangular sense amplifier is disclosed. A DRAM memory array and an SRAM memory array, based upon triangular or parallelogram shaped cells, are disclosed, including a method of interconnecting such arrays. A programmable variable drive transistor is disclosed. CAD algorithms and methods are disclosed for designing and making semiconductor devices, which are particularly applicable to the disclosed architecture and tri-directional three metal layer routing.

The invention relates to an active electric power-assisting circulation ball type steering system, comprising a steering column tube assembly, a screw rod moving device, a circulation ball type steering device, an electric power-assisting device and an automatic control module. A steering column tube is connected with the upper part of a screw rod of the circulation ball type steering device through a sliding spline, and the electric power-assisting device is connected with the lower part of the screw rod through a sliding spline; the screw rod moving device is sleeved on the screw rod; the screw rod has two motion freedoms; a freedom of rotating around the axis is controlled by a steering wheel; and the other freedom of moving along the axis is controlled by a screw rod moving control motor; a steering nut is moved by overlapping the effects of rotation and axial movement of the screw rod, so that a transmission ratio of the steering system is changed in real time, and the active steering is intervened. The steering system not only can meet the requirements on lightness and high sensitivity at a low-speed steering process and on stable operation at a high-speed steering process, but also has the characteristics of security, compact structure, low cost and the like. The active electric power-assisting circulation ball type steering system is applicable to a medium/light passenger bus and a lorry.

A body fluid absorbing article, which is improved in the spot absorptivity and in the diffusivity in an absorbent, and which is improved in the characteristics of a body fluid migration to the absorbent. The body fluid absorbing article comprises an absorbent sandwiched between a body fluid permeable surface member and a body fluid impermeable back member. Said absorbent includes an upper layer and a lower layer sequentially from the side of said body fluid permeable surface member, and said lower layer has a higher density than that of said upper layer.

The present invention relates to an automatic mixing, adjusting and feeding system for an aquaculture feed, wherein a feed bin weighing module which is used for automatically feeding back and controlling loading weight and unloading weight is arranged on a combined feed bin; a pneumatic valve on the bottom of the combined feed bin is aligned to a proportioning bin below; an air brake on the bottom of the proportioning bin is aligned to a feed mixing bin below; a vibrating conveyer is arranged in a mixing bin; and the vibrating conveyer is used for filtering a powdery feed to a powdery material collecting barrel; a bacterial (liquid) barrel is communicated with the mixing bin through a liquid conveying pipeline to add a bacterial liquid or a medicinal liquid into the feed, and to uniformly mix by virtue of the vibrating conveyer; the bottom of the vibrating conveyer is communicated with an air pump conveying pipeline through a pipeline; a fan is divided into two air paths through a pneumatic three-way joint, one path is used for blowing the feed and annularly scattering the feed through a rotary material scattering machine floating on the water surface while the other path is used for aerating and oxygenating a water body in a feed feeding region through an underwater aeration pipe in a material scattering region of the material scattering machine so as to improve dissolved oxygen demand of a high-density feeding fish school in the feed feeding region.

The invention discloses baby heel hemostix. The hemostix comprises a shell, an insurance component, a triggering key, a blade, a knife rest, a poking shaft and a torsion spring, the insurance component comprises a pull ring, a key retaining rib and a blade protection shell, the triggering key is locked through the key retaining rib, and the blade is covered with the blade protection shell; a 90-degree included angle is formed between the key direction of the triggering key and the blade outgoing direction of the blade; the poking shaft can drive the knife rest to be linked; the end, close to the blade, of the knife rest is provided with a bevel pin shaft, and the bevel pin shaft is arranged in a profiling groove in the shell in a sleeved mode, so that the blade moves according to the track of the profiling groove; when in the locked state, and a clamping corner at the lower end of the poking shaft is stuck by a protrusion at the lower end of the triggering key, so that the torsion spring is located in the energy storage state. By means of the hemostix, the blade can be prevented from being polluted, when a medical worker conducts blood sampling, accurate location can be achieved, misoperation is avoided, and painless blood sampling is achieved in the real sense.