79 results about "Normal height" patented technology

A medical device and its use are described. The device is useful for replacement or treatment of a diseased or damaged intervertebral spinal disc. The device has volume to occupy space between vertebral bodies, has mechanical elasticity to provide motion between vertebral bodies, and sufficient strength to withstand the forces and loads on the vertebra. The device may have modifications to allow for attachment to the bones of the vertebrae. The device may also contain modifications for ease of placement in the anatomic space between vertebral bodies. The device may be constructed to expand to restore the normal height o the intervertebral space.

An inlet is adapted to receive pressurized gas from a CO2 gas cartridge. A variable compression member has a normal height, under normal operating temperature conditions, adapted to provide a normal compressive force between the gas cartridge and the inlet to effectively seal the gas cartridge to the inlet. The variable compression member also has a reduced height, under heightened temperature conditions, adapted to provide a reduced compressive force between the gas cartridge and the inlet to allow pressurized gas to escape between the gas cartridge and the inlet. A seal member is compressed between the gas cartridge and the inlet. The inlet may be part of a pneumatic dispensing device. The gas inlet is in fluid communication with a gas enclosure to enable pressurized gas delivered through the inlet to provide a dispensing force on a product cartridge to cause dispensing of the viscous product.

The invention discloses a region quasi-geoid refining method based on CQG2000, including the followings: step one, the CQG2000 is used as a platform, and GPS leveling data is used for determining the quasi-geoid model of the region to be measured according to remove-fit-restore method; step two, GPS system is used for obtaining the real-time geodetical coordinates of any unknown point in the region to be measured, and measured data are transmitted to an arithmetic and control unit that uses the constructed region quasi-geoid model to convert the measured GPS geodetic height of the known point into normal height, i.e., leveling height, in real time. The method is simple and convenient to be carried out, the measured data are accurate and reliable, and the measurement speed is quick, thereby being capable of efficiently solving the problem of geoid fitting defect caused by no gravity data obtained when the quasi-geoid is refined and the problems of complicated measuring processes and big measuring cost when gravity data is used for refining, greatly improving the precision and resolution factor of quasi-geoid and having very high use value.

The invention provides a laying method and a device of an engineering control network. The laying method of the engineering control network comprises the steps that a GPS (global positioning system) control network point is selected in a measurement control area; normal height h of the GPS control network point is acquired according to geodetic height H' of the GPS control network point relative to a reference ellipsoid and height anomaly zeta 2008 of the GPS control network point; a horizontal control point is selected in the measurement control area; horizontal constraint adjustment is performed on a GPS control network by utilizing an engineering application coordinate of the horizontal control point; an engineering application horizontal coordinate of the GPS control network point is obtained; and engineering construction treatment is performed according to the normal height h and the engineering application horizontal coordinate of the GPS control network point. According to the method and the device, the horizontal coordinate and sea level elevation can be obtained in the same GPS control network.

When a substrate is transferred by a holding arm to a multiple tier wafer boat, contact between the holding arm and the substrate is prevented. When the wafer boat is not subjected to a thermal effect, a normal height position of a ring member is obtained by relatively elevating and lowering a transfer base member with respect to the wafer boat. Before a wafer, which is not yet thermally processed, is transferred to the wafer boat, a height position of the corresponding ring member is obtained. By comparing a difference between the normal height position of the ring member and the height position of the ring member before the wafer is transported, with a threshold value, whether to transfer the wafer by the wafer transfer mechanism to the wafer boat can be judged.

A polygon mirror of an object detector of a vehicle includes first faces for projecting a laser to a first predetermined area and a second face for projecting the laser to a second predetermined area higher than the first predetermined area. The polygon mirror is rotated to project the laser to the first and second predetermined areas through a projection window. Thus, the laser can be projected not only to an area at normal height in front of the vehicle but also to an area higher than the normal height in front of the vehicle. Thus, even if a reflection object of an obstacle is positioned at a high position, probe light can be projected to the reflection object. As a result, object detection or distance measurement can be performed correctly.

The invention relates to a method for improving a yield of continuous casting molten steel. The method comprises steps of (1) forwardly moving an tundish retaining wall, (2) spraying a repairing material to a slag line position of the tundish retaining wall, (3) constructing a slag overflow groove in a tail part of the tundish, (4) adjusting molten steel flow via a sliding plate during casting, closing the sliding plate when slag is discharged and then re-opened after five to eight seconds, and repeating the work until the molten steel of a large pack is fully cast into the tundish, (5) increasing a flow of the large pack casting molten steel via adjustments of the sliding plate, arising a molten steel liquid level of the tundish, timely discharging steel slag via the slag overflow groove,decreasing the molten steel flow after the slag discharging work is finished, so the molten steel liquid level of the tundish can restore to a normal height, and (6) repeating the step (4) and step (5) until the whole casting process is completed. The tundish structure is improved, the sliding plate is controlled during a large pack casting process and the slag of the tundish is timely discharged, so the molten steel yield can be greatly improved.

The invention discloses a dynamic lumbar vertebra fixing system. The dynamic lumbar vertebra fixing system comprises a dynamic rod (1), and at least two pedicle screws (2) connected to the dynamic rod (1), wherein the upper part of each pedicle screw (2) has a cavity; a screw bolt (3) is arranged in the cavity and is in threaded connection with the pedicle screw (2); the dynamic rod (1) passes through the cavity in the upper part of the pedicle screw (2); the screw bolt (3) in the cavity presses the dynamic rod (1); the dynamic rod (1) is a hollow rod; an elastic core shaft (1-2) is inserted into a hole of the dynamic rod (1); at least one section of lead screw part (1-1) of which the diameter is larger than those of two sides is arranged on an excircle of the dynamic rod (1); and more than one circles of lead threads (1-1-1) are arranged on the lead screw part (1-1). The dynamic lumbar vertebra fixing system can return a lumbar segment to a normal three-dimensional line and keep the normal height of a lumbar disc well, allows the limited movement of a spinal column and well accords with the physiological stability of the spinal column, so that the effects of relieving pains and preventing regression of neighboring segments are achieved.

The invention discloses a system for realizing water level prediction based on a GRU network. The system comprises a construction module, a training module and a verification module, the constructionmodule is used for constructing a GRU network model based on the GRU; the training module is used for collecting water level and rainfall information and inputting feature vectors corresponding to thewater level and rainfall information into the GRU network to achieve training of the GRU network model; and the verification module is used for inputting test data into the trained GRU network modeland predicting the height of the water level through the trained GRU network model. The height of the water level can be accurately predicted, early warning is achieved in advance, countermeasures aretaken in advance, the water level of the water area is made to be at the normal height, and life safety and property safety of people are guaranteed.

The invention relates to ventilation and fire protection in track traffic, in particular to a subway platform ventilation and smoke removal distribution structure in a station with an opened-closed system. The subway platform ventilation and smoke removal distribution structure is characterized in that a smoke removal pipe is externally connected with an air supply pipe, the air supply pipe is communicated with a small air removal chamber by the smoke removal pipe, and a control valve is arranged at the connecting part of the smoke removal pipe and the small air removal chamber. The subway platform ventilation and smoke removal distribution structure has the advantage that as the arranged smoke removal pipe is communicated with the air supply pipe, an air (smoke) removal fan can carry out uniform smoke removal on a station platform by the smoke removal pipe and the air supply pipe. The reconstruction cost of the platform is reasonable; and the structure can be adopted under the conditions that the station construction can be influenced by conditions such as piping and the like, the height of the platform can not reach the normal height, a space does not exist for arranging an upper air removal pipe in a rail area, or an upper air removal pipe of a running subway is damaged, and the repair difficulty of the air removal pipe is extremely large due to the influence of a contact network and normal running requirements, so that the air flow composition for normal ventilation and fire hazard smoke removal of the station can be met simultaneously.

The invention discloses a lifting key and an expansion and folding method. When a cover body or a handle is closed, the key is in a compressed state, the cover body or the handle of the device is opened, the cover body or the handle releases a traction mechanism, and a movable plate is driven by self elasticity of the key to move; after the movable plate moves, the locking state between the movable plate and an X balance frame is released, the X balance frame is unfolded under effects of a reset mechanism, and the key is restored to a normal height; the cover body or the handle is slowly closed, a traction mechanism pulls the movable plate under effects of the cover body or the handle, the movable plate moves backwards to the initial position, the movable plate and the X balance frame areclamped at the time, and the key changes to a compressed state. According to the automatic lifting key, the key can be automatically unfolded when opening, the key is automatically retracted when closing, the space height is small when closing, and a laptop or a Bluetooth keyboard is thinner and easier to carry.