138results about How to "Avoid excessive stress" patented technology

A cranial bolt secured to a skull of a patient includes a threaded portion and a lumen portion. Threaded portion has an inner surface forming a central passageway which extends throughout the threaded portion. The inner surface includes a connector mating with the lumen portion. The threaded portion has an outer surface having a plurality of threads for engaging a hole formed in the patient's skull. The lumen portion includes a stem portion that enters the central passageway and engages the mating connector. A fluid tight seal is formed between the inner surface of the threaded portion and the stem portion. At least two lumens are disposed through the stem portion and the base portion. The lumens have a proximal end opening outside the skull and a distal end opening inside the skull. One embodiment includes sensor lumens diverging from the centerline and another allows lumen portion to rotate independent of threaded portion.

Thermal energy storage—TES—comprising: at least two blocks or zones operated with respect to charging and discharging of thermal energy by flowing a heat transfer fluid—HTF—through the block or zone; an inlet charging manifold; an outlet charging manifold; an inlet pipe arranged from the inlet charging manifold to each block or zone; an outlet from each block or zone; and further structure as follows: one or more of the valves: a flow control valve (V_i1; V_a1, . . . V_e1) arranged in at least one of block or zone inlet pipes, inlets, outlets and outlet pipes, for control of flow through the block or zone; a bypass valve (V_i2; V_a2, . . . V_e2) arranged in inlet charging side pipe sections between inlet pipe and serial flow return for the block or zone, for bypassing flow and serial flow control; and an outlet charging side switch valve (V_is; V_as, . . . V_es) arranged in at least one of block or zone outlet pipes and outlets, for control of serial flow and parallel flow; and one or more of the pipes: an outlet pipe from a block or zone outlet or a switch valve in said outlet to the outlet charging manifold, a serial flow return pipe arranged from a block or zone outlet or from a switch valve in the outlet pipe to the inlet charging side of a next in serial flow block or zone, wherein each block/zone can operate within the full temperature range of the TES, by flowing heat transfer fluid through the blocks/zones for charging and discharging, respectively, according to temperature of the heat transfer fluid and said blocks/zones, by operating said valves to flow heat transfer fluid in serial and/or parallel, from higher temperature to lower temperature blocks/zones or side when charging and from lower to higher temperate blocks/zones or side when discharging. The invention also provides a method for operating the thermal energy storage and use of the method and thermal energy storage.

A folding multipurpose tool incorporating a latch release mechanism including a lever, a cam, and a rocker-shaped grip body to easily effect release of a catch for holding knife or screwdriver blades extended. A spring and cams are arranged to hold each of a pair of handles either extended or folded with respect to the tangs of a pair of pliers jaws or the like. The handles include inwardly directed comfortable rounded rims. Portions of folding blades interlock with other folding blades on an opposite handle when the tool is folded, to stabilize the handles while using a knife or screwdriver. Blades of folding scissors include edges that are serrated only near their tips. A container opener includes a hook defining a recessed throat.

Provided are a photo-bioreactor and a method for photo-biological cultivation. The photo-bioreactor comprises at least two containers layered vertically, wherein any two adjacent containers are connected with each other, thus the photo-biological culture fluid can flow from the container of top layer to the container of bottom layer one layer by one layer.

The invention provides a method and device for controlling an air conditioner to stop, and the air conditioner. The air conditioner comprises a compressor, a throttling mechanism, an indoor fan and an outdoor fan. The method for controlling the air conditioner to stop comprises the steps of obtaining current operation parameters of the compressor after a stopping instruction is received, judging the relationship between the current operation parameters of the compressor and a corresponding stopping threshold value, and when it is judged that the current operation parameters of the compressor are smaller than or equal to the corresponding stopping threshold value, controlling the throttling mechanism to be adjusted to the first preset stopping opening degree of a current operation mode, and controlling the compressor to stop operating after a preset duration. Through the method for controlling the air conditioner to stop, the situation that a compressor and compressor tubing shake due to sudden stop of the compressor is avoided, the compressor can be stopped under small loads and low operation frequency, stress generated on the compressor tubing when the compressor is stopped is reduced, and the service life of the tubing is prolonged.

The present invention provides a surface coating system of fiber reinforced ceramic matrix composite material, wherein the surface coating system is arranged on the substrate surface of the fiber reinforced ceramic matrix composite material and comprises a Sic coating layer, a mullite coating layer and a yttrium silicate coating layer laid in order from bottom to top. The preparation method comprises the following steps of preparing sludge raw materials of the Sic coating layer, the mullite coating layer and the yttrium silicate coating layer respectively, and preparing the Sic coating layer, the mullite coating layer and the yttrium silicate coating layer. The present invention is used for the surface coating system of the fiber reinforced ceramic matrix composite material, has the advantages of high density, high temperature resistance and anti-oxidation.

A double-cone rotary vacuum drying and solvent recovering system comprises a double-cone vacuum dryer, a hot water circulating pump, a hot water tank, condensers, a vacuum pump, a bag filter and a first gas-liquid separator, wherein the condensers include a shell and tube condenser and a coil condenser; a filter element of the double-cone vacuum dryer is cleaned by the nitrogen provided by a nitrogen reverse blow valve; the filter bag of the bag filter is cleaned by the nitrogen provided by a No.2 nitrogen reverse blow valve; and a check valve is arranged on a No.5 pipeline connecting the first gas-liquid separator and the vacuum pump. The system effectively prevents too high pressure in the vacuum dryer due to filter element blockage in the drying process, the bag filter can prevent the materials from blocking the valve, cleaning can be carried out without stopping the whole system, and the whole system can not undergo reverse suction and backflow so as to cause the materials to be lost even if sudden power failure happens.

The invention provides a controller cluster upgrading method and device. The method and the device are applied to a management controller and a region controller in a controller cluster under an SDN framework, and the method is used for gradually upgrading the management controller and the region controller in the controller cluster to solve the problem of low progressive upgrading efficiency and avoid an overlarge pressure of an edition server.

An adjustment arrangement in a suspension hanger assembly that can be used to square the orientation of an axle with the travel direction of the incorporating vehicle. The adjustment arrangement includes a hanger bracket that has a pair of substantially parallel, spaced apart hanger legs projecting generally away from the vehicle and each of the hanger legs has an elongate aperture or slot that is mutually aligned, one with the other. A bushing pin is inserted through both elongate apertures with opposite end portions of the pin being similarly positioned in each of the apertures. A substantially squared orientation is established between the hanger bracket and the bushing pin. A pair of adjustment devices are provided, one each, in association with a respective end portion of the bushing pin. The devices are configured to synchronously move both end portions of the bushing pin to similar positions in the elongate apertures thereby maintaining the substantially squared orientation between the hanger bracket and the bushing pin. Each of the adjustment devices are arranged to be rotated about a floating axis relative to the hanger bracket and to have a tool-receiving aperture eccentrically located relative to that floating axis. The tool-receiving apertures are configured to simultaneously receive a common actuating tool for affecting synchronous rotation of the adjustment devices.

The invention discloses a coring drilling tool based on hydraulic clamping coring. The coring drilling tool comprises a force transferring power distribution mechanism, a guide limiting mechanism, a pressure storage mechanism, a lifting pressure injection mechanism, a hydraulic core clamping mechanism, a side spraying drill bit power distribution mechanism, an outer tube assembly and a sealing system, wherein the guide limiting mechanism is butted with the force transferring power distribution mechanism; the pressure storage mechanism is butted with the guide limiting mechanism; the lifting pressure injection mechanism is butted with the pressure storage mechanism; the hydraulic core clamping mechanism is butted with the lifting pressure injection mechanism; the side spraying drill bit power distribution mechanism is butted with the hydraulic core clamping mechanism; the hydraulic core clamping mechanism comprises a bottom bearing platform, a hydraulic membrane, a core inner tube, a clamp spring seat and a clamp spring. The coring drilling tool can reach 100 percent coring rate in soft, loose and broken complex stratums where coring is difficult, provides fully automatic three-dimensional stress to clamp, bind and control cores based on hydraulic pressure, meanwhile is matched with a conventional core clamping and cutting device, and has the characteristics of high reliability, high coring efficiency, high coring quality, high core recovery percentage, wide applicable stratum range and good automation property.

A fluid-powered impact vibrator (5), in particular a hydraulic hammer, comprising a fluid-powered percussion hammer (8) with a percussion piston (18) that is moved back and forth under the effect of a control means (10) and comprising a guide unit (7) on which the percussion hammer is supported, wherein the impact vibrator is additionally provided with a control valve, designed as a pressure monitor, for adaptation to the supplied input power. The control valve preferably is a pressure shut-off valve or a pressure-limiting valve (25) that is connected to the input pressure line (3) provided with the operating pressure, and automatically stops the percussion hammer (8) if the operating pressure resulting from the input power exceeds a specified maximum value. To stop the percussion hammer (8), either the pressure line (3) is blocked or the control means (10) is held in one of its end positions, i.e., the operating stroke or the return stroke positions. Moreover, the pressure shut-off valve or the pressure-limiting valve (25) preferably is a component of the guide unit, consisting of a support frame (7), or the percussion hammer (8) itself.

The invention relates to a transfer plate for loading a cargo space. The transfer plate (10) is intended to be moved, together with cargo units (11), into the cargo space (12) and back again, the cargo units (11) remaining in the cargo space (12). Rolling elements (13) are arranged, over at least a part of the length of the transfer plate (10), on the side of it facing the cargo units (11) to permit movement between the transfer plate (10) and the cargo units (11). The transfer plate (10) is mainly of plastic and the thickness of the structure formed by the transfer plate (10) and the rolling elements (13) is less than 70 millimetres. The invention also relates to a method for loading a cargo space.

The invention provides a multiaxis vibration test condition cutting method based on acceleration equivalence. The method comprises the following steps: applying test conditions in each direction in single-axis vibration to a corresponding direction of multiaxis direction, and according to a cutting principle, changing the test conditions in each direction of the multiaxis vibration so as to obtain test conditions when multiple axes vibrate simultaneously; and determining key points, extracting acceleration response root-mean-square values of the key points in the corresponding direction when each single axis vibrates and acceleration response root-mean-square values in each direction at the key points when the multiple axes vibrate simultaneously, according to test pieces, calculating trapezoid control spectrum reduction coefficients of each direction when the multiple axes vibrate simultaneously, and respectively carrying out cutting according to the solved trapezoid control spectrum reduction coefficients so as to obtain a new control spectrum based on the acceleration equivalence. According to the invention, a vibration control spectrum is equivalently cut under the condition that the multiple axes vibrate simultaneously, such that the phenomenon of too large stress of the test pieces, caused by loads simultaneously applied by the multiple axes is avoided, over-test is avoided, and smooth completion of a test is guaranteed.

The invention belongs to the field of feeds for quails and particularly relates to Chinese-herbal-medicine feed for quails. The Chinese-herbal-medicine feed is characterized by comprising the following components in parts by weight: 40-60 parts of corn, 20-30 parts of soybean meal, 5-10 parts of super fish powder, 2-4 parts of soybean oil, 2-6 parts of grass seed powder, 5-10 parts of soybean oil cake residue, 5-10 parts of rice bran, 1-3 parts of salt, 10-15 parts of premix and 10-15 parts of traditional-Chinese-medicine additives. The Chinese-herbal-medicine feed has the beneficial effects that materials such as the corn, the bean meal and the grass seed powder with suitability for intaking of the quails, high digestibility and good palatability are selected according to the nutrition needed by growth and development of the laying quails, the nutrition is rich, the protein content is high, the energy is high, the nutrition needed by the laying quails is provided, the materials are easily digested and absorbed by the quails, the daily feed intake is increased and the egg laying capability is enhanced; a proper material matching ratio is determined by multiple testing, the most reasonable feed-egg ratio is ensured, and the raising income is largest; and the feed contains the components such as the premix and the traditional-Chinese-medicine additives, the types of nutritional elements are complete, and various nutritional components needed are provided, so that the healthy growth of the quails is ensured.

An air conditioning system capable of preventing children or elderly people from easily catching cold or unexpected expenses from incurring to household heads, and preventing excessive stress from being given to children and elderly people. The air conditioning system (10) comprises an air conditioning apparatus (1), an operation capacity setting means (84), an operation capacity range changing means (84), a first authentication information input means (82f), and an operation capacity range change permission judging means (84). In the operation capacity setting means, the operation capacity of an air conditioning apparatus can be set within a first range. In the operation capacity range changing means, the first range can be changed to a second range. In the first authentication information input means, first authentication information can be input. The operation capacity range change permission judging means judges whether or not to permit a change from the first range to the second range based on the first authentication information.

Disclosed is a temperature difference control method for quick cooling or quick starting of a turbine. According to the temperature difference control method, a turbine quick cooling or quick startingdevice is used for compressing air through electric heating, heated air is conveyed into a high-intermediate pressure cylinder of the turbine, quick cooling is carried out according to certain rate,or the metal temperature of the high-intermediate pressure cylinder is improved. The temperature difference control method comprises the steps that a) quick cooling, wherein the compressed air is firstly heated to 280 DEG C, a valve is opened to convey the compressed air into the high-intermediate pressure cylinder, and the cooling rate of the compressed air is automatically controlled to accelerate turbine cooling; and b) quick starting, wherein at the normal-temperature stage before unit starting, air of certain temperature is conveyed into the turbine, a certain temperature difference between the air and the inner wall of the steam cylinder is kept, the temperature of the steam cylinder is improved according to a certain rate within the specified range to achieve the arm of heating theturbine. The temperature difference control method has the beneficial effects that the temperature of the compressed air and the temperature rise or cooling rate of turbine metal can be controlled, the stress of the turbine metal is prevented from exceeding the standard, and the service life of the turbine is guaranteed.

The invention discloses a variable angle suitcase pull bar. The structure design of the suitcase pull bar is characterized in that a variable angle can be provided, the length of the suitcase pull barcan be telescopically adjusted, the selection and positioning of the use angle of the pull bar can be completed by a pull bar rotating shaft and a positioning lock, the pull bar is provided with an inclined supporting sleeve structure, the inclined supporting sleeve automatically cooperates with the telescoping of the pull bar when the pull bar changes the angle in order to disperse the transverse stress of the pull bar, reduce the stress of the pull bar rotating shaft, avoid an overweight suitcase from damaging the pull bar and facilitate the balance and the stability of the body of the suitcase during the pushing and pulling of the heavy suitcase, the pull bar is provided with a pull bar angle control mechanism, the pull bar angle control mechanism adopts a mechanical control lock to control, and the core mechanism of the lock is modularly designed to achieve simple production installation and a good product consistence. The pull bar has the advantages of independent overall structure, simplicity in external mounting, and simplicity in after-sales maintenance, and can be used to push and pull various objects easily and conveniently.

There is provided an optical element comprising an optical element body, a reflecting area and an optical passageway. The optical element body defines an axis of rotational symmetry. The reflecting area is disposed on the optical element body and adapted to be optically used in an exposure process. The optical passageway is arranged within the optical element body and allows light to pass the optical element body, the optical passageway being arranged eccentrically with respect to the axis of rotational symmetry.