55 results about "Two step" patented technology

A wireless device selects, in response to initiating a random access procedure, a first radio resource for transmitting a message. In response to determining the first radio resource is invalid for transmission of the message, the wireless device transmits, via a second radio resource, the message based on determining the second radio resource is valid for the transmission of the message and determining a time difference between the second radio resource and the first radio resource is smaller than a threshold.

The invention belongs to the technical field of cleaning equipment, and provides a control method and device, cleaning equipment, a storage medium and a program product.The control method comprises the steps that in response to step obstacles detected by the cleaning equipment, depth information of a first step obstacle in the step obstacles is obtained; and based on the depth information, a rotating arm assembly of the cleaning equipment is controlled to execute corresponding obstacle crossing actions. Wherein the stair obstacles are provided with at least two stairs; the obstacle crossing action comprises the steps that the free end of the rotating arm assembly provides obstacle crossing assistance on the rear portion of a driving wheel of the cleaning equipment and / or the free end of the rotating arm assembly provides obstacle crossing assistance on the front portion of the driving wheel, and the first step obstacle is an obstacle which is close to the cleaning equipment and needs to cross the area first; the rotating arm assembly comprises a free end and a fixed end and can rotate or swing around the rotating center of the fixed end. And furthermore, the obstacle crossing stability and success rate of the cleaning equipment aiming at stair obstacles are improved.

The utility model discloses a conveying device and tissue selling equipment. The conveying device comprises a supporting mechanism and a pushing mechanism. The supporting mechanism comprises at least two step faces distributed in a high-low mode, and a connecting inclined face is arranged between the step faces. The step surfaces are used for placing a row of multiple products which are stacked up and down, and the products between the adjacent step surfaces are staggered up and down; and the pushing mechanism is used for pushing the lowermost product on the low step surface to move towards the high step surface along the connecting inclined surface. Therefore, when the pushing mechanism drives the lowermost product to move from the low position to the high position, the bottom product of the low step face can abut against the middle of the side face of the bottom product of the high step face, namely, the top face of the bottom product of the low position can be always lower than the top face of the bottom product of the high position. And one product at the bottom of the lower position can only push one product at the bottom of the higher position to move every time, and two products stacked up and down cannot be driven to move together. It is guaranteed that in the whole paper outlet process, the pushing mechanism can only eject out one paper towel bag, and paper can be smoothly output.

The utility model discloses a storage rack in the technical field of fire hose vehicles, which comprises two step shafts, two keels and a plurality of ribs, and the plurality of ribs are arranged on the two keels at equal intervals along the length direction; the step shaft comprises a second step, the second step is fixedly installed on the outer side wall of one rib on the outer side, the other end of the second step is connected with a first step, and a groove hole is formed in the other end of the first step. According to the fire hose storage device, fire hoses can be conveniently stored according to heights and sections, the situation that storage is disordered is avoided, convenience and rapidness are achieved, and the working efficiency is better improved.

The present invention relates to a method for manufacturing a power semiconductor device by using a two-step thinning process, and to a method for manufacturing a power semiconductor device by using a two-step thinning process in which a support substrate having a high heat dissipation capacity is formed on a sapphire growth substrate thinned in two steps, thereby enabling the performance and reliability of the power semiconductor device to be improved.

A personalized preview system to receive a request to access a collection of media items from a user of a user device. Responsive to receiving the request to access the collection of media items, the personalized preview system accesses user profile data associated with the user, wherein the user profile data includes an image. For example, the image may comprise a depiction of a face, wherein the face comprises a set of facial landmarks. Based on the image, the personalized preview system generates one or more media previews based on corresponding media templates and the image, and displays the one or more media previews within a presentation of the collection of media items at a client device of the user.

The utility model discloses a hand support bracket table, which comprises a table body and support legs, at least one side of the table body is provided with a support step, the support step comprises a first step surface and a second step surface, the first step is lower than the second step, and a first support surface can be formed between the first step and the table top of the table body. A supporting step is arranged on at least one side of the table body and comprises a first step face and a second step face, the first step face is lower than the second step face, a first supporting face can be formed between the first step face and a table top of the table body, two steps are formed, and a second supporting face can be formed between the first step face and the table top of the table body. The first step face can be used for supporting the hand, and the second step face can also be used for supporting the hand. Therefore, a user can select the supporting surface for use according to own requirements.

Aspects of the disclosure include a pull and push two steps load floor system. An exemplary pull and push two steps load floor system can include a first two-track transition support feature including a first track having an open end and a second track having an open end and a second two-track transition support feature including a third track having an open end and a fourth track having an open end. The load floor system can further include a load floor having a hinge and four pins positioned such that the load floor can be coupled to the first two-track transition support feature and to the second two-track transition support feature by placing the four pins into respective tracks of the first two-track transition support feature and the second two-track transition support feature through the respective open ends.

The invention relates to the technical field of nucleic acid detection, in particular to a CRISPR multiple nucleic acid detection system and application, the CRISPR multiple nucleic acid detection system comprises a CRISPR / Cas two-step detection system and a conventional CRISPR two-step detection system, the reaction procedure comprises two steps, the first step is multiple amplification reaction; the reaction procedure in the second step comprises two stages, the first stage is detection by a conventional CRISPR two-step detection system, the design of PAM-free sgRNA or crRNA cannot cut a report probe due to low reaction temperature of the CRISPR / Cas two-step detection system, and a signal of the fluorescent probe in the first stage is generated by the conventional CRISPR two-step detection system; in the second stage, the temperature is rapidly increased to be within the reaction temperature range of the Cas protein 2, the CRISPR / Cas two-step method detection system plays a role, and meanwhile, the Cas protein 1 is inactivated due to high temperature, so that the conventional CRISPR two-step method system cannot cut the report probe, and a fluorescence signal in the stage is generated by the CRISPR / Cas two-step method detection system.

The utility model provides a multipurpose tin planting pad which comprises a pad body, the pad body comprises a first placing face and a second placing face which are arranged back to back, at least two pairs of step sets are arranged on the two sides of the first placing face, and the heights of the step sets are sequentially increased from inside to outside; and symmetrical third step groups are arranged on two sides of the second placing surface. The tin planting pads required by chip tin planting and mainboard tin planting are combined into a whole, the convenience of maintenance personnel can be improved to a great extent, the first placement surface is provided with the two step groups so as to adapt to chips of various sizes and thicknesses, and the compatibility is high.

The application provides a forming and machining method of a near-closed thin-wall snap ring, which comprises the following steps: firstly, designing the size of a process retaining section according to the size of a part; secondly, machining the process retaining section according to the size of the part; thirdly, cutting a material plate according to the size of the part body; fourthly, rounding the material plate according to the product diameter; fifthly, welding the process weld to obtain a cylinder for preparing the flanging forming; sixthly, in order to form a near-closed groove, the process needs to be realized in steps, that is, firstly, adopting a pre-formed U-shaped groove, and then adopting a flanging forming process; seventhly, supporting the process section in the process of flanging forming, and adopting a rolling forming method to form the product; eighthly, removing the excess material to ensure the width of the notch, and keeping the process section, which avoids the vibration of the cutter in the process of machining the thin-wall part, and better controls the deformation in the process of machining, so that good forming and machining sizes can be obtained; and ninthly, removing the process section, and forming the product in two steps, which realizes the economic and efficient machining of the near-closed thin-wall snap ring.

The utility model relates to a quick disassembly type personnel cross-regional passage, and belongs to the field of construction site facilities, the quick disassembly type personnel cross-regional passage comprises two step blocks and a bridging assembly, the two step blocks are located on the two opposite sides of a low wall respectively, the bridging assembly is used for connecting the two step blocks, and slope plates are arranged on the step blocks; the slope plate is located above the step block and placed in the middle relative to the slope plate, the slope plate is connected with the step block, one end of the slope plate is located at the top of the step block, and the other end of the slope plate makes contact with the ground. On the premise that the low wall is not broken, the spaces on the two sides of the low wall are communicated through the step blocks and the slope plates, cross-region flowing of personnel and equipment is achieved, and the construction operation efficiency is improved.

The utility model relates to the technical field of flow drill screws, in particular to a flow drill screw structure capable of effectively preventing looseness, which comprises a screw body, one end of the screw body is fixedly connected with a screw cap, the lower end face of the screw cap is provided with a screw cap flange integrated with the screw cap, and the inner side of the periphery of the lower end face of the screw cap flange is provided with a first step surface. A second step surface is arranged on the outer side of the periphery of the lower end surface of the nail cap flange, and the radius of the lower end surface of the nail cap flange is 2.7 mm, so that under the condition that the sizes of the nail caps are consistent, the contact area is increased, the friction force is effectively improved, the widths of the first step surface and the second step surface are 0.07 MM and 0.1 MM respectively, the angle is about 8 degrees formed by outward opening of the nail feet, and the service life of the nail caps is prolonged. The structure is beneficial to adapting to the working condition that the material is soft or hard, when the plate slightly deforms, such as warping or bending, the two steps form the annular protrusion and the annular recess, friction force can be effectively increased, and therefore the purpose of reducing torque attenuation is achieved.

A carrier board for stair renovation is provided with at least one groove on its inner surface to form the respective step. The groove is rounded at its apex, or has a semicircular or lens-shaped profile, and is cut only to a depth that leaves 2 mm of the carrier material to stabilize the resulting edges. Two parallel grooves are milled into the carrier board, one on the right and one on the left. After the material is bent at a 90° angle in the area of ​​these grooves, a renovation double step is created. By creating rounded V-shaped grooves, directly heating these groove areas while simultaneously cooling the surrounding areas, and then bending the groove areas with the remaining carrier material and the decorative layer, a stable double step is created. This minimizes waste and yields two steps that can be installed on-site onto existing stair treads.If more than two grooves of this surface structure are arranged parallel in the bending area of ​​the stair tread, each of these grooves supports only a partial bending of the base plate up to the 180° angle being reached. The stresses that arise in the material due to the bending are thus minimized, largely preventing cracking or breakage of the stair tread.

The utility model relates to the technical field of ball mills, in particular to a stepped wet-type ball mill lining which comprises a first-order lining plate arranged on the inner wall of a ball mill and located at one end, close to a feeding port, of the ball mill, and a second-order lining plate arranged on the inner wall of the ball mill and located at one end, away from the feeding port, of the first-order lining plate. The third-order lining plate is arranged on the inner wall of the ball mill and located at the end, away from the feeding port, of the second-order lining plate, the section thickness of the second-order lining plate is different from that of the first-order lining plate, and the section thickness of the third-order lining plate is different from that of the first-order lining plate and that of the second-order lining plate. The whole service life of the lining plate is effectively prolonged, and meanwhile partial replacement under the condition that partial lining plates need to be replaced is achieved.

Methods and apparatuses are provided for the dynamic adaptation and sharing of random access channel (RACH) occasions in wireless communication networks for network energy savings (NES). A user equipment (UE) receives a configuration indicating whether a RACH occasion is shared between two-step and four-step random access. The UE receives information activating an additional RACH occasion, with an indication of whether it is shared. The UE transmits a two-step RACH preamble or a four-step RACH preamble in the additional RACH occasion based at least in part on the configuration or the information. The methods also include defining dedicated parameters for NES-capable UEs, dynamically indicating sharing properties of additional ROs, and allowing baseline ROs to adapt their sharing properties. Thus, the disclosed methods and apparatuses optimize resource utilization, reduce latency, and improve energy efficiency in wireless networks, ensuring efficient initial access and resource allocation while maintaining backward compatibility with non-NES capable UEs.

A personalized preview system to receive a request to access a collection of media items from a user of a user device. Responsive to receiving the request to access the collection of media items, the personalized preview system accesses user profile data associated with the user, wherein the user profile data includes an image. For example, the image may comprise a depiction of a face, wherein the face comprises a set of facial landmarks. Based on the image, the personalized preview system generates one or more media previews based on corresponding media templates and the image, and displays the one or more media previews within a presentation of the collection of media items at a client device of the user.

The invention discloses a two-step ADC circuit based on an automatic correction DCO, a conversion method and application. The method comprises the steps that the automatic correction DCO completes frequency correction of a coarse quantization clock and a fine quantization clock; the first step of the ADC is single-step M-bit SS ADC coarse quantization, the second step of the ADC is fine quantization, the fine quantization firstly extracts residual time through a residual time detection module, then a DCO is started through the residual time to generate a fine quantization clock to carry out N-bit time-digital quantization on the residual time, and the ADC with M + N-bit quantization precision is jointly realized through the two steps; the connection from coarse quantization to fine quantization ensures that the output fine quantization clock frequency of the DCO meets the frequency matching requirements of the two-step ADC system on the coarse quantization clock frequency and the fine quantization clock frequency through automatic correction. The circuit has the characteristics of small area, high sampling rate, high resolution, low power consumption, no need of global transmission of a high-frequency clock, limitation of action time of the high-frequency clock and the like, and is suitable for reading circuits of high-performance image sensors and infrared focal plane detectors.

The embodiment of the utility model provides a cross ladder, and relates to the technical field of ladders of production lines. The striding ladder comprises two step ladder assemblies and a lap joint plate. One end of the lap joint plate is movably connected with one step ladder assembly, and the other end of the lap joint plate is movably connected with the other step ladder assembly; the lap joint plate can move in the Z-axis direction relative to the step ladder assembly. During use, the two step ladder assemblies are arranged on the two sides of the speed multiplication line respectively. And by arranging the lap joint plate, production communication of personnel on the two sides of the speed multiplication line can be facilitated, and the personnel can quickly cross the speed multiplication line and repair and maintain the equipment conveniently. The lap joint plate can move in the Z-axis direction relative to the step ladder assembly, the height of the lap joint plate can be conveniently adjusted according to the height of the speed multiplication line so as to be suitable for speed multiplication lines of various heights, and universality is improved.

A low-energy-consumption PDC drill bit comprises a drill bit body and a plurality of blades extending from the drill bit body, cutting elements and nozzles are arranged on the blades, and at least two steps are arranged on the cutting contour line of the drill bit, so that the drill bit with the structure can release the stress of rock at the bottom of a well, reduce the strength of the rock, reduce the rock breaking difficulty of the drill bit and improve the mechanical drilling speed of the drill bit; the step protruding rock ridges can restrain transverse vibration of the drill bit and improve the stability of the drill bit, so that the service life of the drill bit is prolonged, and the anti-drifting capacity of the drill bit in directional drilling is improved.

Provided is a wafer jig including a bottom wall and a ring-shaped side wall. The bottom wall has a supporting surface. The ring-shaped side wall is connected to a periphery of the bottom wall. The ring-shaped side wall includes at least two step portions. The two step portions include a first step portion and a second step portion. The first step portion is connected between the supporting surface and the second step portion, and the first step portion protrudes along a direction toward a center of the bottom wall. The ring-shaped side wall surrounds the center. In addition, a wafer structure and a wafer processing method are also provided.

The application belongs to the technical field of copper pin processing, and discloses a high-precision copper pin and a processing equipment thereof. The copper pin is provided with two step surfaces at the tail section, and the two step surfaces are of the same height along the radial direction. The processing equipment for processing the copper pin comprises an injection mold capable of linearly sliding on a workbench to enter and exit an injection station; a blanking device arranged on the workbench for transferring the copper pin; and a transfer device slidingly arranged on the workbench for transferring the copper pin on the blanking device into an encapsulation cavity of the injection mold. The application is provided with two step surfaces at the tail section of the copper pin, and the pressure resistance and tensile resistance in the forward and backward axial directions are obviously improved. The encapsulation area is also enlarged through the two connected step surfaces, and the fastening degree is obviously improved. Since the bending and other processing methods are not used, the microcrystalline lattice of the copper pin does not change, and therefore the influence on impedance is relatively small, and the precision is high.

The integrated packaging structure comprises the magnetic device and a lead frame, supporting plates are arranged on the lead frame, supporting plate connecting pins are used for assembling the magnetic device and an electronic element and achieving electrical connection, the number of the supporting plates is two, the supporting plates are of a split distribution structure and are arranged on the two sides respectively, the supporting plate on one side is in a two-step shape, and the supporting plate on the other side is in a two-step shape. Comprising a narrow step surface and a wide step surface, and a chamfer is arranged on the wide step surface at the joint position of the two steps, so that isolation grooves with gradually increased intervals are formed below the magnetic device; and four corners of the magnetic device are respectively positioned at two ends of the narrow step surface of the supporting plate and two ends of the chamfered part of the wide step surface, so as to form four-point positioning. Compared with the prior art, the filling volume of the molding compound can be increased, the isolation voltage resistance of the product is improved, and the insulation isolation voltage resistance of the transformer and the carrier plate is improved.

The utility model relates to the technical field of energy storage equipment, in particular to an explosion-proof structure, which comprises an explosion-proof piece, a nick is arranged on the explosion-proof piece, the nick comprises a bottom surface and two side surfaces connected with the bottom surface, and each side surface comprises a first surface, a step surface and a second surface which are sequentially connected along the depth direction. The plane where the two first faces are located forms an obtuse angle with the bottom face, the step faces are arranged away from the bottom face, and the nick can be formed through two-step stamping. The two-step punching can reduce the punching depth of each step, so that the material can be prevented from being extruded to the end face, the planeness of the end face can be improved, and the service life of the punch can be prolonged. The utility model provides a battery which comprises the explosion-proof structure, and the explosion-proof structure is arranged on the shell of the battery. According to the battery, the planeness of the end face can be improved, and the service life of the punch can be prolonged.

The utility model discloses a through hole axial component surface-mounted installation forming tool which comprises a base, a fixing block is arranged at the top of one end of the base, a through groove is formed in the top of the base in a penetrating mode, steps are arranged on the two sides of the top end of the base respectively, and the two steps are symmetrically distributed on the two sides of the through groove. The positioning assembly is arranged in the through groove and is used for positioning the component; the U-shaped positioning seat is rotationally connected with the fixing block and is used for fixing a lead in a component on the positioning assembly, and the width of the U-shaped positioning seat is equal to that of the top of the base; the U-shaped pressing block is located on the outer side of the U-shaped positioning seat, and the U-shaped pressing block is rotationally connected with the fixing block and used for bending and forming the lead on the component. According to the utility model, through the cooperation of the components, the sizes of the lead shoulders are completely symmetrical after the component is formed, and the leads at the two ends of the component can be bent and formed at the same time, so that the production efficiency is greatly improved.

The application discloses a kind of back channel step two times pre-excavation support and support back method, comprising the following steps: (A) determining the range of stress reduction zone in advance mining;(B) support in advance mining influence zone;(C) excavate the back channel of first half, excavate transfer chamber and corner;Excavation is carried out simultaneously with the support of first half back space and the equipment of first half back;(D) excavate the back channel of second half, excavate transfer chamber and corner;Excavation is carried out simultaneously with the support of second half back space and the equipment of second half back.The present application is in advance according to support stress curve in stress reduction zone before stopping mining line, and the back channel is excavated in two steps on site, and the back channel is excavated and the support is shielded to realize the synergistic effect.

The present invention provides a one-step adhesive bonding and curing molding method and shell assembly for a mosaic structure. While ensuring adhesive bonding and curing quality and post-bonding part dimensions, this method achieves one-step adhesive bonding and curing molding of a honeycomb mosaic structure composite material. This reduces the number of assembly and adhesive bonding and curing steps required, allowing the production of a honeycomb sandwich mosaic structure to be completed with only one assembly and one adhesive bonding. This method is simple to operate and the process is easily controllable. This method solves the problems of prior art methods requiring at least two steps of assembly, adhesive bonding, and curing molding for a hyperbolic honeycomb mosaic structure composite material, resulting in difficulty in controlling deformation.