153 results about "Pear shaped" patented technology

A semi-stationary balloon in the gastric antrum provided with an anchoring rod for inducing weight reduction in human beings is disclosed, a device for inducing a lesser appetite and early prandial satiety, said balloon being made of inflatable per-os medical grade silicone having a volume of up to 240 ml, with an average space of 120 ml to be filled with non-elastic fluid provided with radio-opaque contrast and dye, preferably methylene blue, so that the maximum diameter of 8 cm is reached after it is filled up with a volume of up to 240 ml and the average diameter of 6 cm with a volume of 120 ml, to be endoscopically placed inside the stomach (E); said intra-gastric balloon (1) being positioned in a semi-stationary way in the gastric antrum (GAC) and provided with an anchoring or duodenal rod (2) having a distal counter-weight (5) installed in the duodenum (D); particularly, the inner face of the pear-shaped medium portion of lesser diameter is coated with a malleable ribbon (f) that provides said balloon (1) with resistance and flexibility.

A body brace for a wearer has a combination of adjustment mechanisms and fasteners to help fit the body brace to a wearer. A wearer first fastens the body brace about his abdomen and lumbar regions to generally fit the body brace around the wearer's waist. The wearer then adjusts one set of adjustment mechanisms that adjust an upper and lower circumference of the brace to allow the brace to fit both straight and pear-shaped bodies. Lastly, the wearer adjusts a second set of adjustment mechanisms that tighten a rear panel of the body brace against a lumbar region of the wearer. Preferably, the adjustment mechanism that is used to tighten the rear panel is an advantaged adjustment mechanism to allow for fine-tuning and a snug fit.

An underwear garment for use by a male, that is, a person having a penis and a scrotum, may be characterized as including a genital pouch and a pair of side panels collectively formed in a mid-section of a front wall depending from a waistband so as to bisect said front wall. The pouch may be pear-shaped when viewed from the front. A lower extremity of the pouch extends under and rearwardly of the front wall so as to form a perineum portion for covering rearwardly past the scrotum and to the perineum of the user. The pouch also has a phallus supporting portion extending forwardly of a plane generally containing the front wall and forming therein an apex portion for containing the head of the penis of the user when the penis is hanging at rest. The pouch also has a scrotum supporting portion extending from and between the phallus supporting portion and the perineum portion for containing at least a portion of the scrotum of the user.

A pivoting vane rotary compressor includes a housing having a generally pear-shaped chamber. A rotor mounted within the chamber defines a main and constricted chamber regions. Reversible intake and exhaust ports alternately introduce air into and exhaust air from the chamber. The rotor carries pivotable vanes and a motor drives the rotor alternately in opposing first and second directions to open the vanes and define compartments that transmit the air through the chamber between the ports. Air introduced through one of the ports is compressed and discharged through the other port. A concentrator employs a pair of these compressors as well as associated filters and crossover valves.

In an embodiment of the invention, a frictional tissue sampling device with a head designed to be rotated without rotating off the designated site can be used to obtain tissue biopsy samples. A frictional tissue sampling device with a head designed to be rotated without rotating off the designated site can be used to obtain an epithelial tissue biopsy sample from lesions. The device can be otherwise used to sample specific locations. In various embodiments, the head of the device is narrow and pointed with a hybrid pear shaped diamond facet. Abrasive material can be adhered to the facet.

The invention discloses a method for preparing proanthocyanidins liposomes, and relates to a method for preparing liposomes. The method solves the problems of large grain size and difficult absorption of a human body by protecting proanthocyanidins in a microcapsule form in the prior art. The method comprises the following steps of: 1, putting soya bean lecithin and cholesterol in a pear-shape flask, adding mixed solution of diethyl ether and absolute ethyl alcohol, adding proanthocyanidins and phosphate buffer, and mixing to obtain mixed solution; 2, performing ultrasonic processing on the mixed solution in a 25 DEG C water bath, performing rotary evaporation to form a film in a water bath at the temperature of between 30 and 50 DEG C and under the pressure of between 400 and 700MPa, adding phosphate buffer again, and performing hydration to obtain coarse suspension; and 3, and filtering the coarse suspension by using a filter membrane of 0.45 mu m. The liposomes are adopted for encapsulating the proanthocyanidins, so the proanthocyanidins are more stable, have small grain size and target, and are favorable for absorption of the human body; the encapsulation rate of the proanthocyanidins liposomes is 88.89 percent; and the preparation process is simple.

The invention provides a rotor structure of line-start permanent magnet (LSPM) synchronous motor that includes a shaft; four fan-shaped magnetic poles each having a first eccentric circular arcs of the surface of the magnetic poles which has a center O1 that is offset from the center O of the rotor with an offset length OS1 and which makes the maximum thickness of the air gap roughly two to five times as much as the minimum thickness of the air gap; four permanent magnets disposing in the inner loop of each of the fan-shaped magnetic poles□a plurality of pear-shaped conductor slots disposing in equal spaces in the outer loop of the rotor in each of the fan-shaped magnetic poles and orienting in radial direction having O1 as the center for forming a squirrel cage winding; as well as four recesses at the midpoint of the first eccentric circular arcs of the surface of the magnetic poles in each of the fan-shaped magnetic poles.

The invention discloses a preparation method of liposome containing irradiated graphene quantum dots (IGQDs). The method comprises the following steps: 1) weighing carbon fiber (CF) and adding the material in a round-bottom 3-mouth flask, adding the mixed acid for mixing, performing ultrasonic treatment, heating backflow, centrifugation and pumping filtration, and dialysis to obtain a graphene quantum dot (GQDs) solution; 2) weighing the graphene quantum dot (GQDs) solution and adding the material into deionized water and an organic solvent, using electron beams for irradiation, performing dialysis to obtain an irradiated graphene quantum dot (IGQDs) solution; 3) weighing HSPC, CHO, and DSPE-PEG2000 and mixing the materials, adding a mixture in chloroform and methanol for dissolution; weighing the above solution, adding the material into a pear-shaped bottle for rotary evaporation to obtain the liposome, adding the (IGQDs) solution, performing concussion mixing, placing the material in a shaking table for hydration, performing extrusion, and placing the material in a refrigerator; and 4) taking the material out and adding the material in a gel separating column, eluting the material by the deionized water, collecting an eluate to obtain the liposome containing the irradiated graphene quantum dots (IGQDs). The liposome can emit white fluorescence under irradiation of an ultraviolet lamp with 365 nm, and has good water-soluble performance and low biological toxicity.

The invention discloses iron-based imidazole ion liquid for removing SO2 from smoke and a preparation method of the iron-based imidazole ion liquid. Anions of the ion liquid are combined with hydrogen on imidazole rings in the form of FeCl4-. The method includes the steps of putting 40 ml or 41.44 g of N-methylimidazole and 63 ml or 56.07 g of n-chlorobutane in a 250-ml pear-shaped bottle to be mixed according to the molar ratio of 1 to 1.2, conducting water bath ultrasonic auxiliary backflow heating at the temperature of 70 DEG C for 6 h, conducting liquid separation through a liquid separation hopper to obtain lower layer liquid, conducting washing three times through ethyl acetate of equal volumes to remove unreacted raw materials, conducting drying for 7 h to remove residual ethyl acetate and obtain a product [Bmim]Cl, adding ferric chloride to be stirred for 20 h under the magnetic force, conducting centrifuging to obtain upper layer liquid, conducting washing three times through distilled water to remove unreacted reactant, and conducting drying for 10 h to obtain the iron-based imidazole ion liquid. The iron-based imidazole ion liquid is short in preparation cycle, high in yield and simple in reaction by-product removal.

The invention discloses a long-stroke high-voltage monostable permanent magnet operating mechanism with an external disc spring. The long-stroke high-voltage monostable permanent magnet operating mechanism comprises a permanent magnet retention mechanism, an electromagnetic driving mechanism, a switching-off spring and a guide rod, wherein the permanent magnet retention mechanism comprises a retention static iron core, a permanent magnet, a switching-off coil and a retention moving iron core; the electromagnetic driving mechanism comprises a switching-on coil, a driving static iron core and a driving moving iron core; a non-magnetic material gasket is arranged between the permanent magnet retention mechanism and the electromagnetic driving mechanism; an axial groove is formed in the outer side wall of the driving moving iron core; a groove and pear-shaped through-holes are formed in the retention static iron core; and the switching-off spring is installed in the groove of the retention static iron core, and lugs are arranged on the lower end of the retention static iron core as well as on the upper end of the retention moving iron core. The long-stroke high-voltage monostable permanent magnet operating mechanism increases the switching-on retention force through the lugs arranged on the retention static iron core and the retention moving iron core; and through the combination of the switching-off spring and the switching-off coil, the permanent magnetic mechanism can eliminate the retention force of the permanent magnet on the retention moving iron core quickly in action, so that the permanent magnetic mechanism is switched off quickly.

A compactable paintball marker squeegee adapted to compact for carrying on the playing field for paintball games. The squeegee is designed to compact into smaller arrangements while providing the capability of wiping paint out a marker barrel. The present invention is designed such that the system will lock into an elongated position and may be unlocked and flipped closed with a single hand motion for compaction during play of a paintball game. Additional improvements provide for a protective design to provide improved insertion into clothing with a protected cleaning head, and improved cleaning head movements through a pear-shaped connection aperture for the pivoting head.

The invention discloses nanometer titanium dioxide composite nitrogen-doped carbon nanofiber and a preparation method and application thereof. The nanofibers are prepared by the following steps: S1. preparing a DMF precursor solution of polyacrylonitrile; 2, uniformly mixing tetrabutyl titanate and the precursor solution to obtain an emulsion; and 3, electrospinning the emulsion to obtain precursor fibers; then performing pyrolysis and carbonization on the precursor fibers to obtain the nanofibers. The surface of the nano fiber provided by the invention is a balsam pear-shaped fold, and afterbeing prepared as a positive electrode of a lithium sulfide battery, the conductivity of the sulfide positive electrode can be improved and the lithium polysulfide shuttle effect can be reduced; Because of its unique three-dimensional self-supporting balsam pear fiber structure, it not only increases the adsorption sites of lithium polysulfide, but also greatly alleviates the volume expansion of the battery. 97% capacity can be maintained after 100 cycles at 0.2 C current density after the nanofibers are made into a three-dimensional self-supporting current collector, and the nanofibers have stable cycling performance and high specific capacity.

A new method of cutting a gemstone known as the “Riemer” cut is provided. The gemstone has a crown portion, a pavilion portion characterized by having four main pavilion facets and a culet base and girdle portion provided between the crown portion and pavilion portion. The main pavilion facets are integrally formed with the culet base thereby creating a pavilion facet base. The “Riemer” cut is applicable to all shapes of stones including round, square, oval, marquise, pear-shaped and rectangular diamonds.

The invention relates to a diamond processing method, which comprises the following steps of cutting a table, forming a girdle, processing a pavilion, and processing a crown, wherein the processing of the pavilion adopts a composite processing method, the reference surface of the girdle is used as the reference, a part near the girdle is ground into N bottom surfaces at a first included angle (alpha), and N is greater than or equal to 6; the ratio of the corresponding height (h1) of the bottom surface in the height (h) from the reference surface of the girdle to the tip of the pavilion is that the ratio of round diamonds is 20-40%, and the ratio of elliptical, olive-shaped, pear-shaped and heart-shaped diamonds is 70-80%; culet forming surfaces are ground at a second included angle (beta) on the basis of N bottom surfaces; at least 2N bottom foot surfaces are ground at a third included angle on the basis of ridges formed by two adjacent surfaces; the first included angle (alpha) is greater than the second included angle (beta). The diamond processing method has the advantages that the good bright and luster of the diamond are maintained, and the maximum weight of the diamond is also maintained.

The invention provides a magnetic suspension solution concentration determination device capable of accelerating magnetic powder precipitation. The magnetic suspension solution concentration determination device comprises a bracket, a pear-shaped bottle and a magnet, wherein a positioning hole is formed in the bracket and is used for inserting and positioning the pear-shaped bottle; the magnet is arranged at the bottom of the pear-shaped bottle and is in contact with the bottom of the pear-shaped bottle; the pear-shaped bottle comprises a top opening, a bottle body, a bottleneck and a bottom sealing opening; the diameter of the bottleneck is smaller than that of the bottle body; scale marked lines are marked on the bottle body and the bottle neck; and the diameter of the bottleneck close to the bottom sealing opening is gradually reduced so that the circular-arc-shaped bottom sealing opening is formed. The magnet is arranged at the bottom of the pear-shaped bottle and the magnetic field intensity of the magnet can be randomly selected; the pear-shaped bottle is arranged in a magnetic field of the magnet, so that magnetic powder can be naturally deposited under the effect of self gravity and the deposition speed is increased under action of the acting force of the magnetic field; and particularly, the acting force on the magnetic powder in the pear-shaped bottle in the bracket by the magnetic field is relatively large, and the deposition speed is very high.

A tissue sampling device includes a single wire spirally wrapped at its half-length. This wire is partially covered in a hollow flexible tube. Located along the distal end portion of the wire is a brush with bristles that are used for collecting a tissue sample. An atraumatic bulb is located on the extreme distal end of the wire to protect the tissue during insertion. The flexible tube is contained within a sheath to cover the brush during insertion and after tissue collection. The sheath is moved back to expose the brush and allow for collection of a tissue sample. The flexible tube is scored in centimeter gradations to allow measurement of the insertion depth of the device. The atraumatic bulb may be more elongated than round, such as egg-shaped, elliptical, oblong, ovate, ovoid, pear-shaped, bullet-shaped, and the like.

The invention relates to a method of synergistic extraction of iron from a high-sulfur high-arsenic gold mine leaching liquid.The method comprises steps of mechanical-pulverizing gold mine by using a pulverizer and screening the pulverized gold mine through 100 meshes by using a sieve shaker to obtain a powdery sample; mixing hydrogen nitrate and the sample by a mass ratio of 1:1 and performing dissolution and oxidization to prepare a hydrogen nitrate leaching liquid; adjusting the iron content in the leaching liquid to 18.09g/L by using hydrochloric acid, and the adjusted liquid is used as raw materials for iron extraction; in a water-bath constant-temperature oscillator, pouring the organic phase and the raw materials for iron extraction with a phase ratio of 1:1 into a pear-shaped separatory funnel, oscillating, mixing, standing and separating, and the organic phase consisting of tri-butyl-phosphate and hexone with a ratio of 10-1:3; after the liquid separating, putting the organic phase containing Fe of 17.97 g/L and distilled water with a phase ratio of 1:2 into the water-bath constant-temperature oscillator for back extraction, therefore, iron can be obtained.The preparation method of the invention has characteristics of simple, quick, environment-friendly and improved purity degree of iron ion solution, therefore, a material for preparing high purity iron can be obtained.

The invention discloses an explosion proof type three phase alternating current asynchronous motor used for an electric automobile, which is provided with an explosion proof type housing, an explosion proof type junction box, a stator and a rotor, wherein a low loss cold rolled silicon steel plate is made of magnetic materials, the electromagnetic loads of the silicon steel plate are 1.0-1.45T of stator tooth flux density, 0.9-1.2T of stator yoke flux density, 1.0-1.4T of rotor tooth flux density, 0.6-0.9T of rotor yoke flux density, 0.5-0.65T of air-gap flux density, 3.0-5.5A/mm2 of stator winding electricity density, 1.2-3.5A/mm2 of rotor conducting bar electricity density and 180-280A/cm of line load; the stator and rotor air gap is 1.1-1.3 times larger than the air gap of industry YB2 series under the same power pole number, slot coordination is 24/22, the slot shape of the rotor is a pear shape with a round bottom and the like, a delta connection method or a Y connection method of maximum parallel branches is adopted for the three phase winding of the motor, and the rotor is a mouse-cage rotor; and H-level insulation and an IBGT (Insulated Gate Bipolar Transistor) insulated system are adopted for the motor. The explosion proof type three phase alternating current asynchronous motor operates safely and reliably in an explosive gas environment, is efficient and energy-saving, and has high torque, small vibration, low noise and large temperature rise margin.

The invention discloses a cultivation technique of freshwater shrimps. The cultivation technique comprises the following steps of (1) establishing a cultivation pond of which the bottom is flat and the two sides are slopes, laying loam soil at the bottom of the cultivation pond, laying a layer of maifan stones on the loam soil, and separately arranging a row of cultivation net cages of which the specification is 5m* 5m* 1m on the other two sides of the pond (except the two slopes); (2) half a month before breeding, performing disinfection treatment on the cultivation pond, and mounting oxygen supply equipment; (3) planting lythrum salicaria, aquatic iris and cyperus alternifolius on the slopes of the pond, planting dendrobium lohohense, potamogeton pectinatus and elodea nuttallii at the bottom of the pond, and putting pear-shaped bellamya in the pond to form a water body self-purification system; (4) designing a formula feed and fresh bait; (5) performing classified breeding, and performing gradient feeding; and (6) performing reasonable fishing. According to the cultivation technique disclosed by the invention, comprehensive nutrition can good-quality growth environment are provided for the growth of the freshwater shrimps, the growth speed of the freshwater shrimps can be notably increased, the immunity of the freshwater shrimps can be notably enhanced, the yield and the quality of the freshwater shrimps are improved, the survival rate of cultured shrimp larvae is increased, and the economic benefits of breeding households are guaranteed.

The invention provides a test method for simulating restoration of a deformation sleeve under stratum confining pressure. The test method is characterized in that a universal hydraulic tester with a YS32-500 tetragonal column is used to generate external force by moving back and forth up and down, an impact reshaping tool fixed at the top center of the hydraulic tester is allowed to be fixed on the deformation sleeve right at the center of the bottom of the hydraulic tester by impact at certain speed, and reshaping force required in restoring the deformation sleeve and tension required by a lifting tool after reshaping of the impact reshaping tool can be tested by a strain plate and a static strain gauge in reshaping process. The deformation sleeve is provided with a clamping tool at a deformation section, and test of restoration of the deformation sleeve under specific confining pressure can be simulated by adjusting magnitude of torque of a bolt on the deformation sleeve. Restoration of the downhole deformation sleeve can be simulated truly, test result is accurate, and accurate construction parameters can be provided for restoration of the sleeve by a pear-shaped tube expander. The test method is suitable for the technical field of oil, natural gas downhole sleeve restoration.