161 results about "Long segment" patented technology

Pipe used in drilling and/or completing wells is stored in long rectilinear segments or strings in the space adjacent a drilling rig being used to construct a well. The pipe is introduced into the well, or extracted from the well, in long segments made up of multiple individual pipe sections. In one embodiment, long rectilinear segments of pipe are bent into a curve that extends from the rig to the space surrounding the rig, where the pipe re-assumes its rectilinear shape. The curve radius is greater than the pipe's yielding bending radius. On a water-based rig, the pipe is received in the water surrounding the rig where it may be stored, tested, inspected, reassembled, treated, and/or otherwise processed. The pipe may be received within a long pipe storage sleeve that is buoyed laterally at or below the water surface or it may be secured to a guy line anchored between the rig and the water bottom. In deepwater applications, long sections of the pipe are stored vertically in the water area between the surface drilling rig and the water bottom. The pipe may also be stored within vertically oriented storage sleeves. In a modified form of the invention, the long pipe sections are moved laterally for storage in the area between the rig and the water bottom without being first pulled to the water surface. The bottom of each stored section is made up or broken out at the subsea wellhead. The pipe section may also be stored within the riser.

An impermeable horse blanket includes mesh material for ventilation of the horse's back while it is covered by the blanket. The mesh material is shielded by a waterproof top cover that protects it and prevents water from wetting the horse while allowing breathing through the openings of the mesh. The front edge of the top cover is attached to the blanket by means of a continuous seam along a front hem that encases a length of plastic piping sufficiently thick to provide a relief structure for raising the front edge of the cover slightly with respect to the blanket and the mesh material. The top cover is also stitched to the blanket at discrete points around its sides and back edge, such that relatively long segments of the side and back perimeter are not attached to the blanket. Thus, an air stream produced by wind or the horse's motion is able to flow between the top cover and the mesh material, thereby producing desirable ventilation while still protecting the back of the horse from rain. The netting material also ensures that insects and debris cannot infiltrate the blanket.

The invention provides a sacculus dilatation catheter for blood vessel dilatation surgery. The sacculus dilatation catheter comprises a sacculus, a push rod, an inner tube and a connecting device, wherein the push rod is positioned between the sacculus and the connecting device and connects the sacculus and the connecting device, and the inner tube extends and passes through the internal spaces of the sacculus and the push rod. The sacculus dilatation catheter is characterized in that: at least one of the push rod and the inner tube is made of weaving silk reinforcing tube. The sacculus dilatation catheter can smoothly pass through circuitous, diffuse calcification and even long-segment occlusive blood vessels in vascular disease interventional therapy surgery.

The plant stalk extruding process for producing furol belongs to the field of furol preparing technology. The process includes the following steps: 1. cutting plant stalk into 2-4 cm long segments; 2. mixing plant stalk segments with acid in a acid mixer, extruding in a screw extruding feeder, feeding into hydrolysis caldron, introducing water vapor for hydrolysis to obtain raw furol liquor, and returning the extruded dilute acid to the acid mixer; and 3. leading the raw furol liquor to the primary distillation tower to obtain raw furol and refining in a furol refining apparatus to obtain furol product. The production process is stable, reliable, low in production cost, high in furol yield and high in furol quality.

A GPS receiver acquires carrier frequency and Gold code phase using short segments of a received GPS signal. In one embodiment, a 1-ms segment of the GPS signal is transformed to the frequency domain. This is multiplied by a frequency representation of the Gold code. The resulting product is converted to the time domain, and a peak is detected. The location of the peak corresponds to the code phase. If no peak is located, the carrier frequency is changed. Full- and half-bin steps in carrier frequency are considered. Processing gain is achieved by using longer segments of the input signal, for example 4 or 16 ms and integrating 1-ms segments. Considerations are provided for compensating for the effects of a transition, should it occur in the short segment of the GPS signal being processed. Integrations can be performed using non-coherent and coherent techniques.

The invention aims to provide a detection method for searching the genetic mutation sites of porcine MMP23 and the genetic polymorphism, namely, the molecular marking method for speculating and identifying the litter size with MMP23. The invention provides the sequence of genomic nucleotides with a length of 482bp including the exons 2, 3 and 4 and the introns 2 and 3 of the porcine MMP23 gene of large white sows, Meishan pigs and Qingping pigs, and provides the single nucleotide polymorphism (SNP) of at two sites situating in the interior of the proliferated 482bp-long segment. The method provided by the invention can be used for developing diagnostic procedures or kits used for selecting the pigs carrying the advantageous alleles in breeding programs with better selective outcome.

The invention relates to a method for extracting desoxyribonucleic acid from formalin fixed and paraffin embedded tissues, and belongs to the technical field of nucleic acid application in biology. The method comprises the following steps of: preparing special lysis solution, adding the lysis solution into paraffin section tissues, boiling at high temperature for 30 minutes, and centrifuging to take supernate; adding absolute ethanol for uniform mixing, and adding the mixed solution into a silicon membrane absorption column for centrifuging; rinsing by using protein-free liquid and salt-free rinsing liquid; and eluting by using elution buffer. In the method, a toxic reagent of dimethylbenzene is not used for dewaxing, and harm to bodies of experimenters is avoided; and precious protease Kis not needed to perform long-time incubation enzymolysis, the operation is simple and quick, the extracted desoxyribonucleic acid in genome is high in quality and stability, and the cost and time can be saved to the greatest degree. The extracted product is subjected to polymerase chain reaction (PCR) detection, long segments with about 750pb can be obtained through amplification, and the work in the aspects such as scientific research, biomedicine and the like is greatly facilitated.

The invention discloses a normal-temperature preparation method of veterinary drug Maxingshigan submicron powder, comprising the following steps: drug selection: selecting the following components in parts by weight: 10 parts of ephedra, 10 parts of semen armeniacae amarae, 50 parts of gypsum and 10 parts of liquorice, cleaning, drying and preparing into the long segment with the length of 3-5 cm; cribble: respectively smashing traditional Chinese medicine pieces which are cut into segments, and sieving by the sieve of 65 meshes to obtain the powder lot with grain diameter of 180-250 mu m; mixing: evenly mixing the obtained powder lot; regrinding powder: smashing the mixed powder lot into the finest powder, sieving by the sieve of 100 meshes to obtain the powder lot with grain diameter of 100-150 mu m; obtaining submicron powder: smashing the finest submicron powder into submicron powder of which the powdery lot grain diameter is 20-40 mu m, and then obtaining the finished product. The preparation method of the invention is carried out at normal temperature without low temperature or special conditions. After bulk pharmaceutical chemicals are smashed, cell wall-broken rate and bioavailability can be improved, and pharmacological action can be enhanced; drug application amount is reduced so as to save medicinal materials; the veterinary drug Maxingshigan submicron powder can be directly drunk as water, thus improving the phenomenon that traditional Chinese medicine powder only can be stirred but can not be drunk for taking.

The invention relates to a heat-push bending method for producing pipe fittings with equal diameters and equal wall thicknesses, which comprises the following steps of: (1) cutting an elbow pipe fitting billet so as to enable two ends of the elbow pipe fitting billet to be of an inclined opening shape respectively, the length of a long segment of the elbow pipe fitting billet to be the length of an outer arc of an elbow pipe fitting product needed to be produced, and the length of a short segment of the elbow pipe fitting billet to be the length of an inner arc of an elbow pipe fitting product needed to be produced; (2) putting the cut elbow pipe fitting billet into a heating furnace, and heating the elbow pipe fitting billet to be 900-1000 DEG C; and (3) putting the heated elbow pipe fitting billet into a heat-push bending device for the pipe fittings with the equal diameters and the equal wall thicknesses, and carrying out pipe fitting pushing to obtain the finished pipe fittings with the equal diameters and the equal wall thicknesses. The invention has the advantages that: according to the method, the produced pipe fittings have equal wall thicknesses without being thinned, small dimensional deviation and attractive appearances.

The preparation process of brake gasket includes the following steps: preparing sisal fiber via cutting sisal into 10-20 mm long segment, soaking in anhydrous alcohol plus benzene solution, washing with anhydrous alcohol and deionized water, boiling in NaOH solution, cooling to room temperature, washing with deionized water to neutrality and stoving in stove; mixing sisal fiber, phonetic resin, copper powder, graphite powder, MoS2, pre-polymer, metal oxide, butadiene-acrylonitrile rubber, non-metal compound and barium sulfate in a high speed mixer to form mixture material; making blank with the mixture material; hot pressing the blank to form; and heat treatment at 190-200 deg.c. The present invention makes asbestos-free brake gasket with sisal fiber as reinforcing material, and the brake gasket has stable friction coefficient, less heat degradation, low wear, no couple wear, smooth braking, low noise and no environmental pollution.

The invention discloses a controlled atmosphere preservation method for hairtails, comprising the following process procedures of: (1) removing heads, tails and abdominal organs of fresh hairtails, cleaning the fresh hairtails clearly with ice water, cutting into 6 to 7 cm long segments, draining the hairtails, and packing the hairtails in package bags; (2) carrying out air mixture by an air proportion mixer, and vacuumizing, charging and heat sealing by a controlled atmosphere packaging machine for controlled atmosphere packaging; and (3) refrigerating the packaged fresh hairtails, wherein the refrigerating temperature is 4 DEG C+/-1 DEG C. The air charged through controlled atmosphere packaging adopts three kinds of gases of CO2, O2 and N2, and the volume ratio of the gases is as follows: 40 to 80% of CO2, 0 to 20% of O2 and 10 to 50% of N2. The value ratio of the air volume proportion (ml) of the air charged in the package bag to the weight (g) of the hairtails is from 3:1 to 2:1. Compared with the traditional preservation methods for hairtails, the invention not only prolongs preservation period, but also keeps the appearance close to the fresh hairtails.

An mounting assembly for a wall or ceiling panel comprises a wire hook configured to be received in an opening extending through the panel from the front side to the back side thereof so that only a relatively short hook portion extends from the front side, while a relatively longer segment of the wire hook extends from the opening at the back side of the panel to engage the back side of the panel at a location spaced from the opening. The assembly also comprises an object holder for holding the object. The object holder has a mounting portion defining a bore for receiving the hook portion of the wire hook. The object holder has an arm extending from the mounting portion and defining a support surface for supporting the object. In one embodiment of the invention, the assembly is installed on a wall or ceiling panel.

The invention discloses a preparation method for submicron pine needle powder at normal temperature. The method comprises the following steps: cutting the Chinese herbal medicine pine needle into long segments with a length of 3 to 5 cm and naturally drying the long segments until moisture content in the long segments is no more than 10%; crushing the long segments of pine needle at normal temperature so as to obtain coarse powder with a granularity of 60 to 80 meshes; grinding the obtained coarse powder in a rod mill, blowing the ground powder into a special bidirectional air-flow screening machine with wind for sieving with a 500-mesh sieve so as to obtain powder with a particle size of no more than 25 mu m and conveying the powder with air-flow generated by an induced draught fan to a cyclone material collector for collection so as to obtain a finished product of the submicron pine needle powder; collecting powder which is not screened by the 500-mesh sieve by a funnel and conveying the collected powder to the rod mill through a pipeline for secondary cyclic grinding. The invention has the following advantages: the whole preparation process is carried out at normal temperature,and no low temperature condition or a special additional condition is needed; the prepared finished product has a particle size of no more than 25 mu m, which enables a cell-wall breaking ratio and bioavailability to be substantially improved; the bidirectional air-flow screening machine used in the invention enables the preparation method for the submicron pine needle powder to be simplified.

The plant stalk pelletizing process for producing furol belongs to the field of furol preparing technology. The process includes the following steps: cutting plant stalk into 2-4 cm long segments, controlling water content, crushing into powder, pelletizing, mixing with acid, hydrolysis to raw furol liquor, leading the raw furol liquor to the primary distillation tower to obtain raw furol and refining in a furol refining apparatus to obtain furol product. The production process is stable, reliable, low in production cost, high in furol yield and high in furol quality.

The invention provides a construction method of a cable-stayed combined support for construction of a first segment of a suspended-pouring arch bridge. The problem that due to the fact that a first segment of a main arch ring arch support is directly located on the cliff edge or due to other environmental influencing factors, a traditional landing support cannot be directly erected for construction is solved. The support is designed with a pier stud as a pillar, finish rolling threaded steel bars and steel strands as inhaul cable and a structural steel bracket as a supporting platform, and the first segment of an arch ring is poured in themanner of a simple cable-stayed bridge. By means of the cable-stayed combined support, the problem that the landing support cannot be adopted for construction is solved, a construction platform is manufactured through an existing arch base, a junction pier and an approach bridge bearing platform structure, and the construction period is prevented from being affected by temporary pillar establishing and the like. Meanwhile, the cable-stayed support has high supporting capability, pouring of long-segment and heavy concrete can be achieved, the structural deformation is small, and the arc arch ring can be well controlled linearly. A new concept is provided for the design of a cast-in-place segment of the arch bridge, and a reference function is provided for later construction of similar structures.

The invention relates to the technical field of textile, in particular to an automatic deviation-rectifying slitter machine. The automatic deviation-rectifying slitter machine comprises a machine body, wherein the machine body sequentially comprises an unwinding roller and an adjusting roller sequentially from front to back, a supporting plate is arranged behind the adjusting roller, rotary shafts are arranged on the two sides of the supporting plate respectively, a deviation rectifying device set is rotationally connected to the rotary shafts, the deviation rectifying device set comprises two deviation rectifying devices which are used in cooperation, each deviation rectifying device comprises a long segment and a short segment, the long segment and the short segment of each deviation rectifying device are integrally formed, a shaft hole matched with the corresponding rotary shaft is formed in the position of connection between each long segment and the corresponding short segment, a short deviation rectifying plate is arranged at one end of each short segment, a long deviation rectifying plate is arranged at one end of each long segment, each short deviation rectifying plate and the corresponding long deviation rectifying plate are in the same direction, the short deviation rectifying plates of the two deviation rectifying devices and the long deviation rectifying plates of the two deviation rectifying devices are correspondingly arranged, the length of each long segment is two to five times that of the corresponding short segment, and the length of each long deviation rectifying plate is two to five times that of the corresponding short deviation rectifying plate. According to the automatic deviation-rectifying slitter machine, due to the fact that the deviation rectifying device set is adopted, coiled materials can be adjusted in real time, the deviation rectifying speed is high, and the deviation rectifying capacity is high.