77results about How to "Simple method" patented technology

A glenoid component for securement to a glenoid surface of a scapula so as to provide a bearing surface for a head portion of a humerus includes a body portion having a first surface configured to contact the glenoid surface of the scapula and a second surface configured to receive the head portion of the humerus. The glenoid component also includes an anchor peg extending from the first surface of the body portion for penetrating the glenoid surface of the scapula so as to secure the body portion to the glenoid surface of the scapula. The anchor peg has a first end portion and a second end portion with the first end portion of the anchor peg being secured to the first surface of the body portion, and the second end portion of the anchor peg having a number of fins secured thereto. The glenoid component also includes a first stabilizing peg extending from the first surface of the body portion for penetrating the glenoid surface of the scapula so as to prevent movement of the body portion relative to the glenoid surface of the scapula. A method of securing a glenoid component to a glenoid surface of a scapula so as to provide a bearing surface for a head portion of a humerus is also disclosed.

In a method for repeat transmission of messages in a centrally controlled communication network including a plurality of terminals and a central station messages assigned sequence numbers are broadcast or multicast from the central station for reception by terminals of a participating group. As soon as a terminal detects loss of a transmitted message or an error in the transmitted message, it transmits a repeat request for repeat transmission of that message, which includes the sequence number of the lost or erroneous message, over another communication link, especially a point-to-point communication link. The central station repeats the message transmission of the lost or erroneous message but only until a predetermined maximum number of repetitions occurs within a predetermined time interval or until a positive acknowledgement of receipt of the previously lost or erroneous message is received.

A specification defining allowable luma and chroma code-values is applied in a region-of-interest encoding method of a mezzanine compression process. The method may include analyzing an input image to determine regions or areas within each image frame that contain code-values that are near allowable limits as specified by the specification. In addition, the region-of-interest method may comprise then compressing those regions with higher precision than the other regions of the image that do not have code-values that are close to the legal limits.

The invention discloses a steel pipe branch-by-branch tracking method based on 3D symbols, and the method comprises the steps: firstly defining and building a group of identification symbol sets for coding; then, symmetrically dividing the end surface of the circular ring of the steel pipe into N sub-regions, and respectively marking the identification symbols in the N sub-regions in a material removal manner; and finally, in the steel pipe operation and machining process, performing end face image acquisition on the steel pipe at the position where logistics tracking is needed, obtaining ad analyzing an end face image, and meanwhile analyzing the identification symbol on the end face. Steel pipe logistics tracking can be simply achieved, and influences and interference generated in the grinding and heating processes in the production process can be avoided and overcome.

The invention discloses a continuous cropping planting method for not reducing the output of spring vigna unguiculata. The method comprises the following steps that in late winter, fertilization and deep tillage are carried out on a planting land, in early spring, a base fertilizer is applied, land preparation is carried out, vigna unguiculata seeds are directly sown, film covering is carried out,the line roads of plants are determined, after vigna unguiculata sprouts and comes up out of the ground, trepanning is carried out on thin film, vigna unguiculata seedlings grow on put-up shelves, and the occurrence of pest and disease damage is prevented. The continuous cropping planting method for not reducing the output of spring vigna unguiculata has the advantages that the method is simple and practical, is suitable for continuous cropping vigna unguiculata planting lands of soil hardening and improves acid soil, decomposed animal dung is adopted to make soil foam and mature, in winter,deep tillage is carried out, a methane fluid is applied, pest and disease damage bacteria source and ova can be killed, a maruca testulalis geyer prevention drug of vigna unguiculata has a smooth saturation curve after adopting modification, the drug properties can last for 5-7 days, and the drug residues are little.

The invention belongs to the technical field of short-wave communication, and discloses a synchronous head capturing method under an extremely low signal-to-noise ratio of short-wave communication. The method comprises the following steps of: intercepting a receiving sequence by using any sampling point, and respectively carrying out isometric segmentation on the intercepted receiving sequence anda local sequence; carrying out correlation on each section of receiving sequence and a corresponding section of local sequence and carrying out FFT (Fast Fourier Transform) to determine the maximum amplitude value of the FFT sequence so as to obtain the maximum amplitude value of Q sections; summing the maximum amplitude values of the Q sections, and taking the summed value as the peak value of the intercepted receiving sequence; traversing each sampling point of the receiving sequence to obtain a peak value corresponding to each sampling point so as to obtain a peak value curve, and selecting the sampling point corresponding to the maximum peak value in the peak value curve as a synchronous starting point of the whole receiving sequence. According to the synchronous head capturing method, the synchronous point can be accurately found, the change condition of the frequency offset of the receiving section and the transmitting section can be mastered, and synchronous capturing can be achieved under the conditions of the extremely low signal-to-noise ratio and the large frequency offset.

The invention discloses an inner diameter pass/stop gauge. A pass gauge is arranged at one end; the pass gauge is as same as a common gauge; a stop gauge is arranged at the other end; a side wall of the stop gauge comprises two cylindrical surfaces and six planes, namely, a plane a, a plane b, a plane c, a plane d, a plane e and a plane f; the diameters of the two cylindrical surfaces are as same as the diameter of the common gauge; the two cylindrical surfaces are centrally symmetrical; the plane c and the plane d are parallel to each other and are bilaterally symmetrical; a distance between the plane c and the plane d is 0.6-0.9 times of the diameter of the stop-end cylindrical surface; the included angles between the plane a and the plane b as well as the plane e and the plane f are both alpha; alpha belongs to [80 degrees, 100 degrees]; the plane a, the plane b, the plane e and the plane f are bilaterally symmetrical. The invention redesigns the pass/stop gauge and quickly and accurately detects the inner hole out of tolerance, so as to meet the engineering design requirements. The inner diameter pass/stop gauge can be used for quickly checking the condition of inner diameter oval out of tolerance. The method is simple and efficient.

The invention discloses a path planning method of a mobile robot. The method comprises the following steps: acquiring environment information to generate an occupancy grid map; calculating and generating a voronoi diagram; smoothing the voronoi diagram; generating a final planning path based on the smoothed voronoi diagram. The invention adopts the voronoi diagram to ensure that the path planningis always in the middle of the obstacles on two sides, and normally walks under the premise of ensuring that the obstacles will not be touched. According to the path planning method of the mobile robot, in the process of generating the voronoi diagram, the voronoi diagram is generated based on Delaunay triangulation, and the b* pathfinding algorithm is used for fast path planning based on the voronoi diagram, thereby solving the problem of global path planning in real environment; and moreover, the method is simple, scientific and reliable.

The invention provides a data sync method and a data sync system. The data sync method and the data sync system are utilized to sync data in a primary database to a target database. The primary database comprises at least one storage datum, and each storage datum comprises a content bit. The data sync method comprises the steps that flag data are set in the primary database, when one content bit in one of the storage data is modified, a flag bit is set in a corresponding flag datum, and the content of the corresponding content bit is written in the target database according to the flag bit when the flag data are scanned and the flag bit is scanned. According to the data sync method and the sync system, the modified storage data are flagged, the method is simple, the data synchronization efficiency of a cross-database is improved, the flag bit occupies small memory, the instantaneity and the consistency of the data synchronization are achieved, the cost performance is high, and the data sync method and the data sync system have the advantages of reducing data synchronization quantity and improving the synchronization efficiency.

The invention belongs to the application fields of self-cleaning and waterproofing and the like, and particularly relates to a super-hydrophobic coating containing candle soot and the preparation method of the super-hydrophobic coating. Compared with the prior art, the method disclosed by the invention uses candle soot to manufacture roughness on the surfaces of glass, steel or ceramic base materials; the method is simple, no special equipment is needed, the operation is simple, convenient and fast; a large number of super-hydrophobic materials can be manufactured in a short time; the carbon which is not burned completely forms spinous bulges on the base material automatically, so that enough roughness is provided for the material, and the enough roughness is in favor of achieving super-hydrophobicity; perfluorodecyltrichlorosilane is deposited, in vapor manner, on the bulges and condensed into chemical bonds to fix the carbons which are only physically connected together, so that the durability is greatly enhanced; meanwhile, a part of the perfluorodecyltrichlorosilane permeates a loose candle soot layer to contact with the base material, so that the whole coating is firmer; the coating is applicable to a plurality of base materials and wide in application.

The invention relates to a pair of reset pliers for spreading and lifting lumbar vertebral bodies, which is used for the reset of a vertebral body and the fusion and fixation of parallel vertebral bodies so as to reset the normal relation of the sagittal sequence and force line of a vertebral column. The head part of a lifting handle I and the head part of a closing handle II rotate around a rivet so as to form the rotation fit of a plier body, a threaded rod penetrates through a through hole on the side surface of the tail part of the closing handle II to form buckled movable fit with a triangular clamp groove on the tail part of the lifting handle I, a nut is embedded in the through hole of the closing handle II and forms spiral movable fit with the threaded rod, the lifting handle I is in a hollow tube slot structure, a telescopic lifting bar penetrates out of the head part of the lifting handle I and forms a telescopic lifting nozzle with the jaws of the head part of the closing handle II, and the tail part of the telescopic lifting bar penetrates through a spiral handle. The pair of reset pliers has the advantages that on the one hand, the purpose of lateral and longitudinal vertebral body resetting which is required by inter-lumbar vertebral body surgery is realized; and on the other hand, the pair of reset pliers for spreading and lifting the lumbar vertebral bodies can satisfy the surgical requirements of different vertebral damages, not only can satisfy large lifting motions, but also can accurately and finely adjust the vertebral column of a local sick body.

An apparatus and method for generating and receiving traffic in a code division multiple access mobile communication system using a block spreading scheme. The apparatus and method for generating and receiving traffic sequences in a code division multiple access mobile communication system use a block spreading code, by a simple method, without increasing the complexity of a system, which is capable of improving receipt performance by reducing an MAI at maximum.