1159 results about "Snail" patented technology

A height adjustable table, which has a constant-force counterbalance mechanism integrated into a top assembly of the table is disclosed. The height adjustable table can include a top assembly supported by a base assembly, which can include right and left telescoping leg assemblies. The top assembly can include a work surface supported by a housing. A counterbalance mechanism, which can include a spring coupled to a snail cam pulley, can be mounted within the housing. A synchronized lift mechanism, which can include at least two bands operatively engaged with a pulley system disposed within the right and left telescoping leg assemblies, can be operatively coupled to the snail cam pulley such that the counterbalance force provided by the counterbalance mechanism is transmitted to the synchronized lift mechanism.

Disclosed is an effective algorithm to correct motion-induced phase error using an iterative reconstruction. Using a conjugate-gradient (CG) algorithm, the phase error is treated as an image encoding function. Given the complex perturbation terms, diffusion-weighted images can be reconstructed using an augmented sensitivity map. The mathematical formulation and image reconstruction procedures are similar to the SENSE reconstruction. By defining a dynamic composition sensitivity, the CG phase correction method can be conveniently incorporated with SENSE reconstruction for the application of multi-shot SENSE DWI. Effective phase correction and multi-shot SENSE DWI (R=1 to 3) are demonstrated on both simulated and in vivo data acquired with PROPELLER and SNAILS.

An efficient breeding method for crayfish in fresh water of a rice field is disclosed. The efficient breeding method for the crayfish in the fresh water of the rice field comprises the steps of: selecting the rice field which is sufficient in water source, convenient in irrigation and drainage, strong in water-retaining capacity, not dry when meeting with heavenly stems and not submerged by floods and has a good ecological environment, no pollution source around, fertile soil and a substrate natural structure; placing grass carp summer flower, bighead carp summer flower and field snails after the young crayfish is placed; filling decayed cow dung every half a month at a filling amount of 50-100 kg per each mu; checking submerged plant mow and filling aquatic plant every half a month; filling animal fodder such as fish meat and meat of spiral shells of 2-4 kg per each mu every week.

The invention discloses a river crab integrated culture method in ponds. The river crab integrated culture method in the ponds comprises the following steps of preparing the ponds; equipping the ponds with escape-proof facilities, water inlet and drainage facilities and bottom aeration facilities; breeding snails, river crabs, freshwater shrimps, dark sleepers and Aristichthysnobilis; planting aquatic plants; feeding feedstuff; managing water quality and sloughing. According to the river crab integrated culture method in the ponds, the ecological layout is adjusted, the self-purifying capacity of the ponds is improved, the pressure exerted on creatures by eutrophication of a water environment and the ponds can be released, the ecological balance and the stabilization of the water quality can be kept, and accordingly the disease incidence are reduced and the foundation for achieving high and stable yields is laid; meanwhile, existing culture facilities are fully taken advantages of, the comprehensive productivity of the ponds is improved, and accordingly the overall economic benefits are improved. The river crab integrated culture method in the ponds is beneficial to utilizing solar energy and the feedstuff to the utmost, preventing diseases and improving the capacity of resisting natural and market risks. Through the embodiment of the river crab integrated culture method in the ponds, the disease incidence of the crabs cultured in the ponds can be reduced, and the culture loss and culture risks can be reduced. The predicted comprehensive benefits of the culture can be improved, and meanwhile the pollution of the ecological environment of a water area caused by the culture can be reduced.

Plant cell expansion is regulated by wall relaxation and yielding, which is thought to be catalyzed by elusive "wall loosening" enzymes. By employing a reconstitution approach, we initially found that a crude protein extract from the cell walls of growing cucumber seedlings possessed the ability to induce the extension of isolated cell walls. This activity was restricted to the growing region of the stem and could induce the extension of isolated cell walls from various dicots and monocots, but was less effective on grass coleoptile walls. Sequential HPLC fractionation of the active wall extract revealed two proteins with molecular masses of 29 and 30 kD, as measured by SDS-PAGE, associated with such activity. Each protein, by itself, could induce wall extension without detectable hydrolytic breakdown of the wall. We proposed the name "expansins" for this class of proteins. Expansins have been isolated from various plant sources including oat, cucumber, broccoli, celery, tomato, cotton, cabbage, and corn, and also from snail and its feces. These proteins weaken the intermolecular bonds between plant wall polysaccharides. They decrease the mechanical strength of commercial products made from polysaccharides, such as paper, and therefore present a novel approach in developing new technologies in industries which make use of such polysaccharides, such as in the paper industry, in the applications of polysaccharide gums and related products. These proteins moreover present a novel approach in the control of plant growth.

Disclosed is an effective algorithm to correct motion-induced phase error using an iterative reconstruction. Using a conjugate-gradient (CG) algorithm, the phase error is treated as an image encoding function. Given the complex perturbation terms, diffusion-weighted images can be reconstructed using an augmented sensitivity map. The mathematical formulation and image reconstruction procedures are similar to the SENSE reconstruction. By defining a dynamic composition sensitivity, the CG phase correction method can be conveniently incorporated with SENSE reconstruction for the application of multi-shot SENSE DWI. Effective phase correction and multi-shot SENSE DWI (R=1 to 3) are demonstrated on both simulated and in vivo data acquired with PROPELLER and SNAILS.

The invention discloses an efficient feed breeding method for chicken lobsters. According to the method, a paddy field having the characteristics of sufficient water source, convenience in irrigation and drainage, high water retaining capacity, drought resistance on dry weather, flooding resistance, good ecological environment, freeness from surrounding pollution source, rich soil and natural substrate structure is selected, and ctenopharyngodon idellus, aristichthys nobilis fries, river snails and the like are put into the paddy field after juvenile chicken lobsters are stocked. As proved by comparison, by adding a compound microorganism fertilizer, rapid growth of chicken lobsters can be promoted, the content of EPA (Eicosapntemacnioc Acid) is increased, and diseases of chicken lobsters are reduced, chicken lobsters died due to diseases are reduced; and meanwhile, beneficial microorganisms in water bodies are increased, and the final quality is improved.

The invention discloses a method for mixed culture of crabs, shrimps and mandarin fishes. The method comprises the following steps: (1) water in a pool is 0.3-1.5m deep, the slope ratio of the pool is 1:3, high-protection facilities are built at the periphery of the pool, and an automatic aerator is arranged per 667m<2>; (2) the plant area of waterweeds in the pool accounts for one third of the area of the pool, and at the same time, snails are stocked; (3) at the end of March, 500-700 crabs per 667m<2> are stocked based on the standard of 80 crabs per kg, 5-7kg of post larvae of lobsters per 667m<2> are stocked in the first and middle third of April based on the standard, 7-10 mandarin fishes per 667m<2> (in 5 cm length) are put in the last third of May, and 6 kg of fingerling silver carps per 667m<2> are put in the first third of June based on the standard of 800-1000 fingerling silver carps per 1kg; (4) overhead price river crab feed cp.40% is used, supplementary with wheat and bean pulp, feed amount daily is controlled to 4-6% of the weight of shrimp and crab; and (5) a water quality regulator is used for one time per 15-30 days. On each day, shrimp and crab shell auxin and allicin, the amount of which account for 1-1.5% of the amount of feeds, are added.

The invention discloses a polyculture method of river crabs, crayfish and mandarin fish. The polyculture method of the river crabs, the crayfish and the mandarin fish comprises the following steps of building a pool, cleaning and disinfecting the pool, planting aquatic plants, putting snails into the pool, disinfecting seeds, putting the seeds into the pool, feeding fodder, regulating and controlling the water quality of the pool, and catching products. According to the polyculture method of the river crabs, the crayfish and the mandarin fish, which is provided by the invention, the effective control on the kinds, the total quantity and the specification of cultivation can be realized, the cultivation cost is reduced, and the economical benefit of the cultivation is increased.

The invention discloses a method for extracting snail mucus. The method comprises the following steps of selecting and treating snails, extracting pedal gland mucus, filtering, carrying out centrifugal separation purification, carrying out vacuum freeze-drying, packaging and storing. The method can effectively extract pedal gland mucus of pedal gland mucus and can effectively keep activities of various biological enzymes in pedal gland mucus. Through the method, mass-production of snail mucus can be realized and activities of various biological enzymes in snail mucus are kept well. The method has good economic benefits.

The invention discloses an insect-resistant pesticide for vegetables. The insect-resistant pesticide is prepared by taking a folium artemisiae argyi extracting solution, an iris japonica thumb extracting solution, a melia azedarach extracting solution, an euphorbia helioscopia extracting solution, a duranta repens extracting solution, a sweet wormwood extracting solution, white vinegar and pepper spray as raw materials. The insect-resistant pesticide can effectively prevent and kill vegetable worms such as aphids and snails, and enable the vegetables to grow luxuriantly, so as to improve the yield of the vegetables. Meanwhile, the liquid drug residual period of the insect-resistant pesticide is only 8-12 days, thus being non-toxic and harmless to people and livestock. The invention also provides a preparation method of the insect-resistant pesticide. The insect-resistant pesticide disclosed by the invention is remarkable in effect, low in cost, and green and pollution-free, thus having a broad market application prospect.

The present invention relates to a lean hematite stage grinding and high intensity magnetism, gravity separation, negative ion reverse flotation technique which includes the following steps of: feeding lean hematite for a first grinding after which a first classification is given; feeding effluence of the first classification under medium intensity magnetism and high intensity magnetism; feeding concentrates into a classification between coarse and fine grits and discarding ore tailings; after the coarse and fine grit classification, feeding the coarse grit products into a coarse snail and fine grit products to concentration; feeding the fine grits from the coarse snail into a fine snail, the fine grits of which are gravity separating fine grits; feeding tailings from the coarse and fine snails into a second classification, the effluence of which goes back to medium intensity magnetism; feeding concentrated underflows into a coarse flotation and discarding the effluents; feeding the fine grits from the coarse flotation into a fine flotation and the tailings into a first sweeping flotation; fine grits from the fine flotation being the fine grits of the flotation and returning the tailings back to the coarse flotation; returning the fine grits from the first sweeping flotation back to the coarse flotation and feeding the tailings into a second sweeping flotation; returning the fine grits from the second sweeping flotation back to the first sweeping flotation and feeding the tailings into a third sweeping flotation; returning the fine grits from the third sweeping flotation back to the second sweeping flotation and discarding the tailings. The technique reduces the work load of the preparation equipment and the cost of mineral separations.

The invention discloses snail grume extract which contains 0.1-5% of chondroitin sulfate, 0.1-5% of allantoin and 0.1-10% of collagen, wherein the molecular weight distribution of micro-molecule polypeptide is within 3000-5500 Dalton. The invention further discloses a preparation method and an application of the snail grume extract in cosmetics. The snail grume extract has the advantages that high pressure homogenate extraction and multi-stage membrane separation coupling techniques are adopted, the effective components of the snail grume are highly enriched, the snail grume extract contains 0.1-5% of chondroitin sulfate, 0.1-5% of allantoin and 0.1-10% of collagen, and particularly the molecular weight distribution of micro-molecule polypeptide is within 3000-5500 Dalton, so that the snail grume extract is very applicable to human body skin absorption, is beneficial for injured skin remediation and can promote heal and accelerate cell regeneration when being added into cosmetics.

The invention discloses a high-performance environment-friendly pig feed. The feed for pork pigs and mountain pigs is prepared by substituting raw materials such as earthworm powder, snail powder, fly maggot powder and yeast for protein raw materials such as fish meal, meat and bone meal and the like, substituting peanut powder for dregs of beans, substituting minor cereals-cassava powder for staple food grain such as corn, wheat and the like, and substituting polypeptide substances in the fly maggot powder, enzyme of the earthworm powder, complex enzyme of a multi-functional plasminogen activator, a flora of microbial probiotics, mechanism actions such as pathogenic bacteria inhibition for chemical growth hormones and chemical medicament antibiotics. The pig feed is characterized in that the pig feed contains a plurality of raw materials in portion by weight: 30 to 60 portions of detoxicated cassava powder, 10 to 25 portions of earthworm powder, 5 to 20 portions of snail powder, 2 to 10 portions of fly maggot powder, 6 to 30 portions of yeast powder, 5 to 20 portions of peanut powder, 1 to 4 portions of garlic powder, 1 to 4 portions of mineral trace elements, 2 to 5 portions of various amino acids, 0.5 to 2 portions of lecithin, 0.5 to 2 portions of various vitamins, 0.5 to 3 portions of multi-functional plasminogen activator, and 0.5 to 3 portions of microbial probiotics. The invention has the advantages of improving the quality of feeds, reducing production cost, promoting the safety probability of meat product and the like.

The invention relates to an efficient snail-killing type organic fertilizer produced from tea seed cakes and a preparation method thereof. The efficient snail-killing type organic fertilizer is characterized by being prepared from the following raw materials in percentage by weight: 45 to 60 percent of the tea seed cakes, 25 to 45 percent of chicken manure, 0.5 to 3 percent of phosphate fertilizer, 5 to 20 percent of organic additive, 0.5 to 3 percent of microbial decomposition agent, and 1 to 4 percent of snail-killing synergistic agent. The efficient snail-killing type organic fertilizer has the characteristics of complete nutrients, cultivatable fertility of a common organic fertilizer, can effectively kill paddy field pomacea, leeches, wireworms and the like, is biologically environment-friendly and nuisanceless, has the function of regulating the plant growth, can carry out snail-killing and fertilizing at the same time, simplifies the farming procedures, is convenient to use, saves labor power and materials, and can stimulate the growth of plant; and a contained plant growth regulator can promote the metabolism and the photosynthesis of the plants, promote the root system development, increase new roots, promote the reproductive development, and improve the disease-resistant and degeneration-resistant capacities of paddy.

A pest trap for trapping snails, slugs, and the like comprising a base structure and a decorative cover. The base structure comprises a planar surface, a sloping surface surrounding at least part of the planar surface, two or more recesses formed in the planar surface for retaining a liquid for luring the pests, and a containment surface that is inclined and surrounds each recess. The cover rests over the base structure, preferably mounted on one or more side walls that partially enclose the planar surface and optionally have flanged ends for partially enclosing the recesses. Use and maintenance of the trap of the present invention is thereby greatly simplified and may be environmentally friendly utilizing common beer or other non-liquid luring means.

The invention discloses a method for producing a high-strength hot rolling valve snail. The method comprises the following steps of: well controlling melting components of molten steel, carrying out continuous casting on the molten steel to obtain a square blank with the measurement (130*130-170*170)mm<2>, and rolling the square blank in a roughing rolling unit and a medium / pre-finish rolling unit after the square blank is heated to the temperature of 1020 minus or plus 10 DEG C in a heating furnace, wherein the temperature of the blank when entering into a finish rolling unit by virtue of a first water tank is 880 minus or plus 10 DEG C, the final rolling temperature of a terminal rack of the finish rolling unit is 980 minus or plus 10 DEG C after the blank is heated, and the temperatureof a twisted steel when going out from a second water tank is 900 minus or plus 10 DEG C. A valve snail which is formed by wrapping after going out from a wire-feeding machine is fed into a roller bed, the running speed of a first section on the roller bed is 0.45m / s and is increased in the increment of 0.05m / s, and the air output of a bottom blower at the downside of the roller bed and atomized water addition amount of the bottom blower are controlled. The melting components of the steel billet in the production method is based on 20MnSi, the silicon content is in low limiting control, the manganese content is lower than the low limiting control, and no Nb, V or Ti is adopted to carry out micro alloying treatment on the molten steel, thus the production cost is saved, a product with goodmechanical properties is obtained and the method has promotional value.

The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.

The present invention relates to novel mulberry tea and its production process. The mulberry tea is coiled like snail and dark green with frost, exhibits one bud and one or two leaves, and may be mixed with boiled water to form richly scented, mellow and light green tea liquid. The mulberry tea is produced with tender mulberry bud and dried lavender as material and through light withering, deactivating enzyme, kneading, roasting and other steps. Of its material, mulberry leaf has the functions of clearing lung, relieving cough, reducing blood pressure and blood sugar and nourishing; and dried lavender has functions of tranquilizing and diminishing inflammation. Therefore, the mulberry tea is one ideal health beverage.

A tape dispenser for young children. The dispenser includes first and second sides that are formed in the shape of an animal and more particularly in the shape of a turtle or snail. The first and second sides are connected together to form a chamber into which a roll of tape is inserted. Each of the first and second sides includes an end portion that is enlarged. A cutter blade is mounted between the enlarged end portions and is positioned a spaced distance inwardly from an outer edge of each end portion. The upper and outer walls of the dispenser include a plurality of ridges to aid in the gripping of the dispenser. The ridges are shaped and positioned to represent the shells of either a turtle or a snail.

The invention relates to the technical field of feeds and in particular to a dedicated feed for pavo cristatus breeding. The feed is made from the following raw materials in parts by weight: 50-60 parts of corns, 20-30 parts of broken rice, 15-25 parts of oat, 15-18 parts of peanut stalk, 8-10 parts of mung beans, 5-8 parts of red beans, 35-45 parts of soybean meal, 15-20 parts of sunflower seed meal, 2-3 parts of beef liver powder, 2-3 parts of locust powder, 3-4 parts of sage seeds, 1-2 (part)s of trichosanthes kirilowii, 2-3 parts of bone meal, 1-2 (part)s of river snail powder, 1-2 (part)s diatomite, 2-3 parts of parched sesames, 2-3 parts of flos hibisci, 3-4 parts of portulaca oleracea,3-4 parts of banana stems and leaves, 0.5-1 part of herba leonuri, 0.2-0.4 part of psoralea corylifolia, 0.1-0.2 part of herba rpimedii, 0.3-0.5 part of fructus ligustri lucidi, an appropriate amount of table salt, and 0.2-0.5 part of a feed attractant. The dedicated feed for a pavo cristatus, provided by the invention, is made of pure natural raw materials and free of any synthesized chemical additives, traditional Chinese medicine ingredients added can effectively improve the egg-laying rate, and the pavo cristatus fed with the feed has a beautiful figure, a bright hair color and an active feeding behavior.

An insecticide for killing oncomelania is prepared from the external seed vessel of gingko through reflux extracting in petroether, alcohol, or ether, vacuum concentrating, separating and purifying by macroreticular resin or chromatography with silicon gel column to obtain the ginkgolic acid mixture, and dissolving it in the aqueous solution of cosolvent.

The controllable fast reservoir blue-green alga bloom eliminating method includes: raising filter feeder fishes; raising and protecting snails, crabs, calms and other water benthic fauna to degrade excrement of the fishes; and controlling water level to favor the disturbance of wind wave to bottom sludge, to ensure the ingestion of water benthic fauna to silt and the limitation of snails' ingestion area. The present invention adopts biological treatment of reservoir blue-green alga bloom without lowering eutrophic salt condition of water.

The invention discloses a double-layered snail-shaped PCB (Printed Circuit Board) coil for wireless energy transfer and a design method thereof, and belongs to the technical field of wireless energy transfer. The technical scheme adopted is that the coil comprises a baseplate, a top layer coil, a bottom layer coil and a through-hole array, wherein the top layer coil is mounted on the baseplate; the bottom layer coil is mounted below the baseplate; and the through-hole array is positioned on the baseplate and used for connecting the top layer coil and the bottom layer coil. Meanwhile, the invention also provides a design method of the coil. According to the invention, a PCB technology is adopted to fabricate resonance coil for wireless energy transfer so as to ensure the precision and stability of self-resonant frequency of the coil; and meanwhile, the coils are placed on the upper and the lower layers of the PCB, so that larger inductance quantity is obtained in a limited baseplate size, the stray capacity of the coil is increased, and the self-resonant frequency is reduced.

The invention discloses high-performance environment-friendly shrimp fodder and a preparation method thereof. The fodder for sea shrimps and freshwater shrimps is prepared by substituting raw materials, such as earthworm powder, snail powder, fly larvae powder, yeast, and the like for protein raw materials, such as fish meal, meat, bone meal, and the like, substituting peanut powder for soybean meal, substituting minor cereal tapioca for staple food grain, such as corn, wheat, and the like, and substituting the mechanism effects of peptide substances in maggot powder, enzymes of earthworm powder, enzymes of a multifunctional plasminogen activator, microbial probiotics flora, pathogenic bacteria inhibitor, and the like for chemical growth hormones and chemical medical antibiotics. The high-performance environment-friendly shrimp fodder is characterized by being prepared from the following raw materials by weight parts: 30-50 parts of virus-free cassava, 10-20 parts of earthworm powder, 5-20 parts of snail powder, 5-15 parts of fly larvae powder, 6-20 parts of yeast, 5-10 parts of peanut powder, 1-4 parts of garlic powder, 1-4 parts of mineral trace elements, 2-5 parts of amino acids, 0.5-2 parts of lecithin, 0.5-2 parts of vitamins, 0.5-3 parts of multifunctional plasminogen activator and 0.5-3 parts of microbial probiotics. The invention has the advantages of improved fodder quality, decreased production cost, improved safety rate of culture food, and the like.

The invention discloses a recipe to the soup of snail rice noodle. The soup is prepared from the following ingredients in parts by weight: 10-20 parts of edible oil, 5-8 parts of river snails, 1-3 parts of garlic, 4-6 parts of ginger, 0.3-0.7 part of dried red hot pepper, 0.5-1 part of purple perilla, 7-9 parts of salt, 1-3 parts of chicken essence, 1-2 parts of oyster sauce, 4-6 parts of cooking wine, 4-7 parts of spice, 0.3-0.5 part of Chinese herbal medicine, 3-7 parts of sugarcane juice and 100-120 parts of drinking water. The recipe to the soup of snail rice noodle ensures that the soup features delicious taste and causes no heat syndrome.

The invention discloses an enhancement and releasing system for snails. The enhancement and releasing system is low is labor intensity, suitable for large-scale releasing, good in releasing effect and capable of improving the survival rate of shellfish seedlings. The system comprises a vertical sleeve, a connecting shaft rod, a storing barrel arranged in the vertical sleeve in a slidable mode, a piston arranged in the storing barrel in a slidable mode, a vertical guiding rod arranged on a boat, a lifting sliding seat capable of sliding up and down along the vertical guiding rod and a lifting execution device arranged on the boat and used for driving the lifting sliding seat.

The invention provides a special-purpose feed for meat ducks, and relates to the technical field of animal feeds. The feed is prepared from the following components in mass percentage: 96% of main materials, 2% of traditional Chinese medicine additives, and 2% of premixes, wherein the main materials comprise the following raw materials in parts by weight: 30 parts of rice flour, 20 parts of wheat bran, 15 parts of soybean cakes, 10 parts of leaf mustards, 10 parts of celery leaves, 15 parts of fish meal, 10 parts of bone meal, and 15 parts of snail meat and freshwater mussel meat. Compared with a traditional feed, the feed disclosed by the invention contains the traditional Chinese medicine components, and the traditional Chinese medicine additives and feed carriers cooperate to work, so that normal nutritional requirements of egg-laying ducks can be ensured, diseases can be prevented and treated, the immunity of the egg-laying ducks can be improved, the growth of the egg-laying ducks can be promoted, the feed does not have toxic or side effects, medicine resistance is not generated, environment is not polluted, the immunity of organisms can be improved, and the feed is rapid in effects and low in prices.

The invention provides a preparing and application method of diffusion medium box for diagnosing livestock's snail fever spot gold, which is a new immune labeling technique and livestock's snail fever immunology diagnosis technique. The invention labels colloid gold onto Japanese snail antigen protein, and is suit for testing many kinds of animals such as cattle, sheep, pig and rabbit; it spots tested animal's blood dried paper leachate onto pyroxylin film as posited phase, then it droplets snail antibody colloid gold 2í½3 drops (100í½150ª–l) and produces naked eye visible red speckle in 2 minutes. Its positive coincidence rate is 100% and its negative coincidence rate is 99.2%.