25 results about "Stress reduction" patented technology

The application discloses a high-performance motor rotor core, comprising rotor laminations, wherein a plurality of magnetic steel slot groups are arranged on the rotor laminations in a circumferential direction; the application has simple structure and reasonable design; stress reduction structures with central symmetry characteristics are arranged to effectively guide and release main radial stress in the magnetic bridge area, optimize stress distribution, avoid fatigue cracks caused by local stress concentration, improve fatigue life and structural safety margin of the magnetic bridge, and improve NVH performance, reduce electromagnetic harmonics, and improve stability and quietness of motor operation; in addition, the overall magnetic steel slot layout is optimized to realize reasonable reduction of material use and lightweight design of the rotor core, and improve power density and dynamic response capability under the premise of guaranteeing electromagnetic performance.

This utility model relates to a silicon carbide crystal boat, comprising two end plates arranged opposite each other, and a grooved bar disposed between the end plates. Each end plate is composed of region A, region B, and region C. Region A has two evenly spaced circular holes. A foolproof hole is located at the center of the lower edge of region C of one end plate. Regions B and C each have three circular holes. A handle is also provided on the outer side of region B of the end plate. The diameter of the circular holes is 20-35 mm. This silicon carbide crystal boat is a complex structural component formed integrally and then perforated. Through innovative end plate partitioning and optimized circular hole topology, thermal stress reduction is achieved, providing a core guarantee for the long lifespan and low defect rate operation of the silicon carbide crystal boat in high-temperature semiconductor processes.

The application discloses a high-altitude steel structure welding deformation pre-control and stress release construction method, belongs to the technical field of welding construction, and aims to solve the problems of low control precision of high-altitude welding deformation and stress release lag. The method arranges sensors on the structure, calibrates the current dynamic welding twin model by using the trial welding data, divides the weld, plans welding according to the model, and instantly identifies the stress concentration area as the intervention target area, and then implements online stress reduction by the following ultrasonic impact device; then, the model is iteratively updated based on the data collected in the whole process to guide the subsequent segmentation; finally, the target processing is performed on the measured residual stress exceeding area. The method is mainly used for high-altitude steel structure welding construction, and realizes the precise active control of deformation and stress.

This invention discloses a method for excavating and withdrawing roadways and equipment before a mining cessation line, comprising the following steps: (1) determining the range of the stress reduction zone caused by advanced mining; (2) supporting the area affected by advanced mining; (3) excavating roadways, excavating transfer chambers, and chamfering corners; (4) supporting the withdrawal space; and (5) withdrawing equipment. This invention provides a method for excavating and withdrawing a roadway on-site before a mining cessation line based on the advanced support stress curve, achieving a synergistic effect between the roadway excavation and support shielding.

A method, computer system, and a computer program product are provided for managing occupational workload. Information is obtained about an occupational workload that includes one or more tasks. The features of the occupational workload including the tasks are extracted. A task performer is assigned to each task. A stress level is calculated for each task performer assigned to each task. The stress level is compared against a preselected value. An alert is generated when the calculated level exceeds the preselected value. The occupational workload is rebalanced when any alert is generated. The rebalancing can include at least one of reassigning a new task performer to one or more tasks, increasing a time allocated for completing each task or increasing number of task performers allocated to complete each task.

The utility model provides a kind of single stamping bending ultra-thin bottom disc and hinge, this ultra-thin bottom disc includes single sheet body, single sheet body is stamped and folded into two plate layers of superposition;Definition two plate layers are respectively first plate layer and second plate layer, first plate layer bends towards second plate layer, forms sunken plate and side wall, the sunken plate and side wall constitute clamping part, for clamping hinged arm.Such setting, single sheet body is stamped and folded into two plate layers of superposition, reduce the weight of bottom disc, to reduce the pressure suffered by screw, improve the stability of screw connection, reduce the possibility of screw loosening, while the structural design of ultra-thin bottom disc makes it better with cabinet body, reduce the deformation generated by its weight, to improve the overall connection stability, in addition, screw stress reduction also reduces the shear force suffered by screw hole, delays screw hole breakage and failure, effectively solve the problem of screw connection stability reduction and screw hole easy failure in prior art, prolong the service life of hinge, improve the user's use experience.On the other hand, ultra-thin bottom disc occupies small space, so that cabinet internal space utilization is higher, also more beautiful.

The utility model discloses a kind of door and window inner swing-in inner tilt hinge structure and inner swing-in inner tilt window, the door and window inner swing-in inner tilt hinge structure includes first base for connecting sash, second base for connecting window frame, connecting link assembly and transmission part of first base and second base;By setting strip-shaped hole with certain inclination angle with its length direction on diagonal pull rod, it can make lock post and diagonal pull rod walk inclined plane stroke when closing inner tilt locking window, from handle operation to locking window walk inclined plane stroke, from the most loose state of closing inner tilt to locking window to the most close state stress reduction two-thirds, locked in when entering diagonal pull rod inclined plane notch, it is easy to enter, when window is locked, inner tilt diagonal pull rod upper corner is extruded by facing visible to window frame inner side tightening to reach high-strength sealing sufficiently;It reaches the technical effect of convenient installation adjustment, good hand feeling, reduce friction, strengthen service life, strengthen sealing, reduce air leakage and maintenance cost.

The present invention provides an apparatus, device, and method for reducing the amount of local stress at the points where the upper and lower surfaces of a glass through-via (TGV) metal region are in contact with the glass layer during the TGV formation process. [Solution] A method for forming a TGV includes forming a structure by forming through holes in a glass layer, forming adhesion-promoting layers on the side walls of the through holes, the upper surface of the glass layer, and the lower surface of the glass layer, forming a dielectric layer on the upper surface of the glass layer, forming holes in the dielectric layer, and forming a seed layer in the adhesion-promoting layer within the through holes, and leaving a portion of the dielectric layer within the through holes by etching and planarizing the structure.

A method includes forming a first dielectric layer, forming a first redistribution line comprising a first via extending into the first dielectric layer, and a first trace over the first dielectric layer, forming a second dielectric layer covering the first redistribution line, and patterning the second dielectric layer to form a via opening. The first redistribution line is revealed through the via opening. The method further includes forming a second via in the second dielectric layer, and a conductive pad over and contacting the second via, and forming a conductive bump over the conductive pad. The conductive pad is larger than the conductive bump, with a first center of conductive pad being offsetting from a second center of the conductive bump. The second via is further offset from the second center of the conductive bump.

The present application belongs to the field of gas turbine engine, and particularly relates to a flange unloading groove structure, a flange plate and an engine. The flange unloading groove structure comprises a first unloading groove and a second unloading groove which are radially communicated, the first unloading groove is located radially outward, the second unloading groove is located radially inward, the circumference of the first unloading groove partially overlaps the circumference of the bolt hole, the circumference of the second unloading groove does not overlap the circumference of the bolt hole, and the maximum circumferential length of the first unloading groove is less than the maximum circumferential length of the second unloading groove. The maximum circumferential length of the first unloading groove is less than the maximum circumferential length of the second unloading groove, which not only improves the stress reduction effect, but also ensures that more bolt holes are arranged, so that the flange can transmit greater load, and the service life and use range of the flange are specifically improved.

Disclosed herein are gate fabrication techniques for providing gate stacks and / or gate structures (e.g., high-k / metal gates) with improved profiles (e.g., minimal to no warpage, bow, arch, and necking and / or substantially vertical sidewalls), which can be implemented in various device types. For example, the gate fabrication techniques disclosed herein provide gate stacks with stress-treated glue layers having a residual stress of less than about 1.0 gigapascal (GPa) (e.g., about -2.5 GPa to about 0.8 GPa). In some embodiments, the stress-treated glue layers are provided by depositing a glue layer over a work function layer and performing a stress reduction treatment (such as an ion implantation process and / or an anneal process in a gas environment) on the glue layer. In some embodiments, the stress-treated glue layers are provided by forming at least one glue sublayer / metal layer pair over a work function layer, performing a poisoning process, and forming a glue sublayer over the pair. Embodiments of the present application also relate to methods for forming gate stacks, semiconductor devices, and methods of forming the same.

A composite package includes a first semiconductor die which includes a semiconductor substrate; dielectric material layers overlying the semiconductor substrate; an edge ring seal structure laterally enclosing the dielectric material layers without any lateral opening therethrough; at least one passivation dielectric layer overlying the dielectric material layers; and a capping metal ring contacting a top surface segment of the edge ring seal structure and laterally surrounding a lower portion of the at least one passivation dielectric layer. Each corner region of the at least one passivation dielectric layer is free of any metallic material other than a respective single slanted bar segment of the capping metal ring. Alternatively or additionally, a spacer metal ring having a different height than the capping metal ring may be formed within the at least one passivation dielectric layer.

To provide a heat exchanger that improves the maintainability of heat transfer tubes. [Solution] The heat exchanger includes a group of heat transfer tubes through which a heat exchange medium flows, a group of holders that hold one or more of the heat transfer tubes, a guide that movably supports at least a portion of the group of holders, a header that is connected to and fixedly positioned in communication with the group of heat transfer tubes, and a stress reduction structure that is positioned at the connection point between the header and the heat transfer tubes and reduces the stress generated in the heat transfer tubes when the holders move.

The utility model relates to mahjong machine field discloses multifunctional mahjong machine operating panel and mahjong machine, including operating panel (1), be equipped with a plurality of downward recessed mounting groove (11) on operating panel (1), the bottom of mounting groove (11) is equipped with the positioning column (12) that projects upward, positioning column (12) is equipped with bearing (2) and places in mounting groove (11) on the sleeve, the outer ring of bearing (2) is installed with carousel (3). The carousel can be rotated for the card friend in the game interval or waiting process, provides the instant stress reduction way for the user through the physical interaction, enriches the non-functional interactive value of operating panel. This design makes up the limitation of single function of traditional operating panel, further expands the user interaction scene of operating panel on the basis of throwing dice and lifting, enhances the interestingness and experience in the entertainment process.

The application provides a kind of measurement method and system of explosive pressure and crack propagation process around deep hole blasting blast hole, it is related to blasting test analysis technical field, specific steps include: with the mechanical parameters of sample, blast hole parameter and explosive parameter as input parameter, the finite element simulation is carried out to blast hole surrounding area blasting process, obtains the pressure value of each coordinate point in blast hole surrounding area at each time;With the stress reduction coefficient associated with distance to obtain internal equivalent stress correction value, and then determine crack initiation coordinate point;For any crack initiation coordinate point, extract its associated coordinate point in its associated time window, and the crack propagation process of blast hole surrounding area is obtained by inversion, the crack initiation coordinate point is determined by the internal equivalent stress correction value in the application, the associated coordinate point is extracted in its associated time window, the crack initiation coordinate point and the associated coordinate point are connected, to ensure that the crack propagation process of blast hole surrounding area obtained by inversion is consistent with the actual working condition of blast hole blasting.

A facial cold plunge device designed to enable prolonged and effective facial immersion in cold water for therapeutic, cosmetic, and wellness purposes. The device comprises an insulated housing unit with an ergonomically contoured reservoir, a chilling mechanism to maintain water temperatures below 50° F., and a thermostat-controlled interface for precise temperature adjustment. A closed-loop water circulation system, incorporating a filtration assembly, ensures consistent cooling and hygienic water conditions. The invention features a retractable breathing apparatus with a snorkel-like tube and a two-way check valve, allowing users to sustain facial submersion without interrupting respiration. The compact and portable design, combined with integrated chilling, filtration, and respiratory support systems, provides a convenient, efficient, and accessible solution for cold therapy, addressing the limitations of traditional full-body cold plunges and DIY facial immersion methods. Applications include stress reduction, vagus nerve stimulation, inflammation control, and various cosmetic benefits.

This invention provides a method and apparatus for determining seismic design information of anchored sheet pile walls, which can be applied to the field of geotechnical engineering. The method includes: obtaining stiffness correction coefficients for multiple seismic earth pressure information based on the relative stiffness information between the sheet pile wall and adjacent soil; dividing the sheet pile wall into multiple continuous segments with stress characteristics along the height direction based on the peak stress value indicating stress concentration due to soil arching effect at the upper part of the sheet pile wall, the inflection point between the stress concentration zone and stress reduction zone of the sheet pile wall, the stiffness correction coefficients, and multiple seismic earth pressure information; combining the earth pressure gradient values ​​of each segment as a function of height to obtain an earth pressure gradient array characterizing the distribution of the wall along the height direction; and determining the design value of the anchor tension for reinforcing the sheet pile wall and the design value of the earth pressure mobilization depth in the passive zone at the bottom of the sheet pile wall based on the earth pressure gradient array and the equilibrium function.

This invention relates to the field of roadway safety optimization technology, and discloses a roadway layout method for water control and scour prevention in mining-induced fault zones. The method includes: analyzing the geological and hydrological conditions of the mining area to obtain parameters of the fault fracture zone, aquifer parameters, and the range of mining-induced impact; dividing the mining area into multiple hazard level zones, including a stress reduction zone, based on the fault's water conductivity and stress concentration; determining the safe distance for water control between the roadway and the fault based on the width of the fault fracture zone, water pressure, and the impact of mining, and optimizing the width of the water-control column; and arranging the roadway within the stress reduction zone according to the characteristics of mining-induced stress distribution, and controlling the angle between the roadway direction and the fault direction to be an acute angle. This invention can significantly reduce the risk of fault-induced water inrush, effectively mitigate the danger of rockburst, achieve coordinated water control and scour prevention, improve the rationality of roadway layout, enhance the stability of the surrounding rock, and reduce disaster management and maintenance costs.

Composition comprising: a) Omega-3 fatty acids up to 1.5 g; b) Bacopa monnieri up to 600 mg; c) Ginkgo biloba up to 240 mg; d) Ginseng up to 2 g; e) Taurine up to 6 g; f) Phosphatidylserine up to 300 mg; g) Pantothenic acid up to 10 g; and h) Vitamin B1 up to 10 mg.

The utility model relates to the technical field of household appliances, disclose a transformer structure and cooking appliance, the transformer structure is suitable for fixing on the bottom plate of cooking appliance, include: transformer body, base, fixed in the bottom of transformer body, the base includes board body and convex part, the convex part is located at the first side of board body, the convex part is coplanar with board body and projects in the projection area of transformer body on the base, the utility model increases the contact area with the bottom plate, effectively disperses the impact load originally concentrated in the local to the larger area, makes the stress reduction of bottom plate unit area when falling impact, thereby reduces the deformation of transformer structure and bottom plate contact area after falling test, significantly improves the impact resistance of product, and prolongs the service life of complete machine further.

This invention provides a method and system for measuring the explosion pressure and crack propagation process around a deep-hole blasting borehole, relating to the field of blasting test and analysis technology. Specific steps include: using the mechanical parameters of the sample, borehole parameters, and explosive parameters as input parameters, performing a finite element simulation of the blasting process in the area surrounding the borehole to obtain the pressure values ​​at each coordinate point at each time point within the borehole area; combining the stress reduction coefficient related to distance to obtain the internal equivalent stress correction value, thereby determining the crack initiation coordinate point; for any crack initiation coordinate point, extracting its associated coordinate point within its associated time window, and inverting the crack propagation process in the area surrounding the borehole. This invention determines the crack initiation coordinate point through the internal equivalent stress correction value, extracts its associated coordinate point within its associated time window, and connects the crack initiation coordinate point and the associated point to ensure that the inverted crack propagation process in the area surrounding the borehole closely matches the actual blasting conditions.

The present invention relates to a gas turbine engine having an improved thermal stress reduction structure so that thermal stress is not concentrated in a specific area. A gas turbine engine according to one embodiment of the present invention includes an exhaust case comprising a plurality of struts that partition an area where exhaust gas is discharged and a gas pass seat having a first connecting portion that extends in the direction of the drive shaft and protrudes radially; a vane assembly that supports a plurality of vanes disposed in a low-pressure turbine section and includes a second connecting portion that is connected to the gas pass seat and contacts a portion of the front of the first connecting portion; and a rotor blade that rotates together with the drive shaft.