77 results about "Two step" patented technology

The invention relates to the field of spectral imaging, in particular to a double-step Fabry-Perot interference snapshot imaging spectrometer, which comprises a telescopic system, a micro lens array, a Fabry-Perot array interference system and an area array detector, and is characterized in that the telescopic system is used for collecting a target light field and carrying out view field limitation and collimation on the target light field; the Fabry-Perot array interference system is used for modulating a target light field into an interference light field array, the Fabry-Perot array interference system comprises two step lenses which are orthogonal in the step direction, the highest steps of the two step lenses are tightly attached, and an air gap with the thickness changing in a checkerboard-shaped two-dimensional increasing mode is formed between the two step lenses; the microlens array is used for imaging the interference light field array onto the area array detector through each imaging channel; and the area array detector is used for receiving the transmission image field of the microlens array to obtain an interference image array. The invention has the advantages of small volume, light weight, compact structure, static state, stability, reliability and the like.

The invention relates to a die forging forming method for spherical shell type forgings, which belongs to the technical field of forging and comprises the following steps: determining a small strain area of the spherical shell type forgings in the die forging forming process; a mold is manufactured, the mold comprises an upper mold body and a lower mold body, the upper mold body is provided with a cavity matched with the contour of the spherical shell type forge piece, the cavity wall of the cavity comprises a target area, and a groove is formed in the target area; placing the blank on a lower die; the upper die is driven to press downwards, the cavity wall of the cavity is used for extruding the blank so that the blank can be formed into a preformed forge piece, and a protrusion is formed in a small strain area of the preformed forge piece; the upper die is driven to ascend, and the preformed forge piece is driven to rotate on the lower die, so that the protrusions and the grooves are staggered; the upper die is driven to press downwards again, the old protrusion is flattened through the cavity wall of the cavity, and a new protrusion is formed in the small strain area of the preformed forge piece; repeating the two steps for multiple times to obtain a final forge piece with a bulge on the outer surface; and the protrusions on the outer surface of the final forging are removed through machining, and the spherical shell type forging is obtained.

A masonry block has a front, a back, a top surface, a bottom surface, a first side and a second side. The front has a front-top edge and a front-bottom edge. A number of staggered steps (e.g., one or two steps) rise above the top surface, setback from the front-top edge by a first setback distance. An equal number of notches are formed / cut into the bottom surface. A first notch of the notches is setback from the front-bottom edge by a second setback distance. When stacked to form a wall, the steps of a lower masonry block interface with the notches of a next higher masonry block and the first setback distance is greater than the second setback distance resulting in an overall setback as defined by a difference between the first setback distance minus the second setback distance.

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.

To solve the problem that a resealing function between a cup noodles container and a lid seal needs to be improved.SOLUTION: The current invention provides an engaging function composed by folding a lid seal material projection part and both wing tab parts of the projection part in two steps, a technology by which an end of the projection part can be locked in both a recess shape and a projection shape, and a resealing function configured to fix an engaging piece to be an end of the projection part to a flange part of a container body by providing a first step for folding the projection part and a second step for folding both wing tabs to reinforce the effect of the first step.SELECTED DRAWING: Figure 1

The invention discloses an offshore open caisson construction whole process monitoring method and device and a readable medium, and the method comprises the steps: obtaining each monitoring item data corresponding to each monitoring type under the corresponding working condition in the construction process collected by a sensor at the current moment, judging whether to give an early warning or not, and if yes, giving an early warning and adjusting a construction scheme; otherwise, construction continues to be conducted according to the construction scheme, correction is conducted on the basis of the initial finite element model, and a corrected finite element model and a finite element analysis result are obtained; inputting the finite element analysis result of the corresponding working condition in the construction process at the current moment, the environment information and the monitoring item data into a trained monitoring item data prediction model, and predicting to obtain monitoring item data at the next moment; whether early warning is conducted or not is judged according to the predicted monitoring item data at the next moment, if yes, early warning is conducted, the construction scheme is adjusted, and the two steps are repeated, and if not, construction continues to be conducted according to the construction scheme. The method can predict the data of each monitoring item at the future moment, and predicts the risk in advance.

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.

The utility model relates to the technical field of punch forming dies, in particular to a side wall outer plate forming tool which comprises a first shaping die and a second shaping die, the first shaping die is used for shaping a part into a side wall outer plate with a first step and a sinking part, the first step is connected with the sinking part, and the second shaping die is used for shaping the part into the side wall outer plate with the sinking part. And the second shaping die is used for further shaping the sinking part of the side wall outer plate shaped by the first shaping die into a second step. The height difference between the first step and the sinking part is small during the first shaping, so that wrinkles, waves and appearance surface deformation caused by unbalanced stress at the intersection part of the first step and the sinking part can be reduced, and the shaping height when the sinking part is formed into the second step can be reduced during the second shaping; and appearance surface deformation caused by material flowing when the shaping amount is too large is reduced. According to the utility model, the forming wrinkling, wave and appearance deformation can be avoided when the side wall outer plate with two steps with different depths is formed, and the quality of parts is ensured.

The present invention relates to the technical field of spring bar production, in particular to a novel railway track spring bar forming die, comprising a stamping component, which comprises a main body component, and a pressing component, a bending component and a transmission component sliding on the main body component, and also comprises a finishing component sliding on the bending component, through which the pressing component, the bending component, the finishing component and the transmission component are pressed down, and then the first two stamping processes can be performed on the spring bar on the main body component; a driving component, the present invention can trigger a first-level component, a second-level component and a third-level component step by step through a telescopic component, and transmit the pressing force to the pressing component, the bending component, the transmission component and the finishing component step by step through a force-bearing component, and perform stamping processing on the spring bar on the main body component, so as to complete the first two processing steps of the W-shaped spring bar, reduce the number of transfers in the spring bar processing work, and thus improve the processing efficiency of the spring bar.

The battery cover plate structure comprises a plate body, a pole, upper plastic cement and a sealing ring, a through hole is formed in the plate body, a first turning plate is arranged on the edge of one side of the through hole, and a second turning plate is arranged on the edge of the other side of the through hole; the second turning plate is provided with a first step surface and a second step surface facing the first turning plate, and the second step surface is far away from the first turning plate relative to the first step surface; the pole is arranged in the through hole, and in the axis direction of the through hole, part of the pole coincides with the first step surface; the upper plastic cement is clamped between the plate body and the pole, and the upper plastic cement is propped against the first step surface; the sealing ring is clamped between the plate body and the pole, and the sealing ring is propped against the second turning plate. By arranging the two step surfaces, the sealing ring cannot be excessively pressed by the force applied to the post terminal when the turning plate is spin-riveted, so that the problem of failure caused by crushing the sealing ring is effectively prevented, and the yield of finished products can be ensured.

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 discloses an edge sealing and connecting integrated structure, which relates to the field of edge sealing and connecting, and comprises a longitudinal plate and a transverse plate arranged on one side of the longitudinal plate, one side of a conical connecting piece I penetrates through one side of the longitudinal plate and extends into the longitudinal plate, and one side of the conical connecting piece I, which is positioned on the outer side of the longitudinal plate, is clamped with a concave connecting piece I; the other side of the concave connecting piece I is bonded with one side of the transverse plate; according to the edge sealing and connecting integrated structure, the space is reserved in the longitudinal plate, the first conical connecting piece is directly installed in the reserved space of the longitudinal plate, the two steps of a galling process and installation of an embedded part are omitted, the assembling time is shortened, and the assembling process is simplified; the longitudinal size of the first concave connecting piece is the same as the longitudinal size of the transverse plate, the hidden design is adopted, the attractive effect is achieved, meanwhile, the sealing effect of a sealing strip is replaced, use of the sealing strip is reduced, and the workload and cost of workers are reduced.

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 present application discloses a method, device, electronic device and storage medium for determining altitude, which belongs to the field of communication technology and can solve the problem of low accuracy in determining the altitude value of electronic devices in the prior art. The method comprises: when the electronic device is in a target state, obtaining at least two step cycles within a preset time period, the target state is used to indicate that the electronic device is in a moving state and is squeezed, and the at least two step cycles are the step cycles of the user during the movement of the electronic device; according to the at least two step cycles, determining the squeezing mode of the electronic device being squeezed; according to the squeezing mode of the electronic device being squeezed and at least two altitude averages, determining the altitude value of the electronic device, each altitude average being the average value of the altitude value of the electronic device within one step cycle.

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 invention relates to the field of spectral imaging, in particular to a double-step Fabry-Perot static interference Fourier transform spectrometer which comprises a light source, a collimating mirror, a Fabry-Perot array interference system, a beam shrinking optical system and an area array detector. The light source emits light beams; the collimating mirror is used for collimating light beams emitted by the light source into parallel light beams; the Fabry-Perot array interference system is used for modulating a target light field into an interference light field array, the Fabry-Perot array interference system comprises two step lenses which are orthogonal in the step direction, the highest steps of the two step lenses are tightly attached, and an air gap with the thickness changing in a checkerboard-shaped two-dimensional increasing mode is formed between the two step lenses; and the beam shrinking optical system is used for imaging the interference light field modulated by the Fabry-Perot array interference system onto the area array detector to obtain an interference image array. The invention has the advantages of small volume, light weight, compact structure, static state, stability, reliability and the like.

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.

The utility model relates to an adjustable stepped seasoning rack which comprises a fixed stepped seasoning rack and a movable stepped seasoning rack, the fixed step seasoning rack comprises a first step-shaped component, a first supporting leg and a limiting rod; the first supporting legs are installed on the two sides of the rear portion of the first step-shaped component, and the limiting rod is installed at the left end of the surface of the first step-shaped component. The movable step seasoning rack comprises a second step-shaped component and a second supporting leg, and the second step-shaped component and the first step-shaped component are similar in shape; the second supporting leg is installed at the left end of the rear portion of the first step-shaped component, a guide groove matched with the limiting rod is formed in the bottom face of the second step-shaped component, and the guide groove extends in the left-right direction. Through superposition and relative movement of the two stepped seasoning racks, the length of the stepped seasoning racks can be adjusted, the placing requirement of changing the number of seasoning bottles is met, the problem that the stepped seasoning racks are wasted due to the fact that the stepped seasoning racks are too long or not enough is solved, and cleanliness of a kitchen is guaranteed.

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.

The invention provides a resin for preparing a biochip, the biochip and application of the biochip. The resin provided by the invention comprises the following components: a first monomer, a second monomer, a third monomer, a first initiator and a second initiator, two or three different types of monomers are used at the same time, and a two-step polymerization method of photo-initiation and thermal-initiation polymerization is adopted, so that the obtained cured resin has good biocompatibility, hydrophilicity and anti-swelling performance, and is suitable for large-scale production. And due to the characteristic of long-term storage at room temperature, the defect that a gel micro-material is easy to volatilize and dry is overcome. The resin provided by the invention is used for manufacturing a biochip, the chip can show good low-adsorption characteristic without post-treatment, and the preparation method is simple, low in cost and suitable for mass production and application.

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.