625results about How to "Good economic benefits" patented technology

The preparation process of selenium-rich edible fungus with activated selenium ore as selenium source belongs to the field of biological selenium resource converting technology. Natural selenium ore as the selenium source is crushed, activated and water extracted; the selenium containing water solution is used in compounding culture medium; and edible fungus is cultured to realize selenium conversion and enrichment, with the selenium-enriching cultured mycelium containing organic selenium in 50-600 mg/kg. The present invention realizes the conversion and enrichment of organic selenium while producing edible fungus with rich active polysaccharide content.

A system, method, and product that enable users to conveniently receive financial benefits from publishing content online are described. A price for a piece of content is dynamically set in the following manner. The piece of content is initially published for free, and categorized for a related category. Related user activities are tracked and used by a business rule to determine a marketability value for the piece of content. If the marketability value exceeds a threshold, a price is determined by applying a pricing algorithm to the marketability value. Subsequent accesses to the piece of content are subject to the price. User activities related to the piece of content are continuously tracked and used to adjust the price.

The invention discloses an electrical stimulation rehabilitation device on the basis of feedback control on angle information and electromyographic signals. The device comprises a plurality of groups of electrical stimulation channels, an electromyographic signal processing module, an angle transmission module, a controller and an electrical stimulation output module, wherein each group of electrical stimulation channels comprises a plurality of electrode plates arranged on the same muscle; the electromyographic signal processing module is used for extracting characteristic values of electromyographic signals acquired by the electrode plates; the angle transmission module is used for detecting a motion angle value of a lower limb; the controller is used for determining muscle stimulation positions and stimulation parameters in a next step according to the motion angle value of the lower limb, amending the stimulation parameters according to the characteristic values of the electromyographic signals and generating electrical stimulation pulses; the electrical stimulation output module is used for outputting the electrical stimulation pulses to the corresponding electrode plates. The invention also discloses an electrical stimulation method on the basis of the feedback control on the angle information and the electromyographic signals. According to the invention, not only is closed-loop control of electrical stimulation implemented, but also effectiveness of the stimulation on muscles is sufficiently considered, the stimulation effect is always in an optimal state, muscle fatigue is effectively reduced, and electrical stimulation rehabilitation training time is prolonged.

The invention belongs to the technical field of agriculture, and discloses a cultivation method for premature small watermelon. The method comprises the following steps of: (1) grafting and raising seedlings: the sowing time of stocks is the first ten days and the middle ten days of December, and scions are sowed in 7 to 12 days later than the stocks; (2) planting grafted seedlings, and performing heat insulation and temperature rise by adopting four-layer coverage of a big shed, a medium shed, a small shed, a mulching film and an electric heating wire; (3) controlling the temperature; (4) pruning with a double-vine or three-vine pruning method; (5) performing artificial pollination and leaving fruits: performing artificial pollination when the second female flower of the main vine and the first female flower of the side vine come out; and (6) harvesting. The harvesting time of the premature small watermelon cultivated by using the method is advanced to the middle ten days and the last ten days of April and advanced by 20 to 30 days compared with the conventional greenhouse cultivated watermelon, and the harvesting time is kept away from the plum rain season of the southern district, so that high yield and stable yield are ensured. Not only the market demand is met, but also the yield and the economic benefit are greatly improved.

The invention provides a Coolmax fiber yarn dyed fabric and a processing technique thereof. In the invention, a Coolmax/cotton blended yarn is adopted, a fine-spun or poplin or oxford-spun or jacquard weave fabric is taken as a fabric texture, and the processing technique of the Coolmax fiber yarn dyed fabric adopts a special treatment method in yarn dyeing weaving. The Coolmax fiber yarn dyed fabric has the beneficial effects that the section of the adopted Coolmax fiber is in a unique four-pipe shape and is hollow, and the tube wall of the fiber is air permeable so that the fabric has excellent characteristics such as hygroscopicity, sweat exhaust, air permeability and the like due to the unique physical structure of the fiber, thus sweat on skins can be exhausted at any time and then transmitted to the fabric surface for rapid evaporation so that skins keep dry and comfortable. By means of breakthrough of the product in research and development as well as process, reference is provided for the development of top-grade personalized textile fabrics, guidance is provided for market development, and good economic benefit is created for enterprises.

The present invention relates to an impurity-removing purification floatation process for sulfur concentrate, belonging to the metallurgical chemical field. Its technical core is characterized by changing the traditional mode of using sulfuric acid to burn slag and separate iron into the mode of floating and purifying iron sulfide as raw material for producing sulfuric acid, using produced high-grade iron sulfide concentrate to make acid and making the slag-burned iron grade be directly reached to requirement for smelting iron and can obtain refined iron powder, so that 100% of burned slag can be utilized. Said process has two contents, one is to cyanide tail slay of gold concentrate which is one of sulfuric acid raw material and remove impurity and another is to purify sulfur concentrate. Said invention can make vitriol plant not only produce sulfuric acid, but also produce iron concentrate powder and gold.

The invention discloses a method used for producing porous biological ceramsite by taking waste incineration fly ash and biomass pyrolysis-gasification residue as raw materials. The method comprises following steps: household garbage incineration fly ash is subjected to high temperature treatment in the presence of a gasification agent so as to obtain residual ash; biomass is subjected to low temperature pyrolysis-high temperature steam gasification so as to obtain a pyrolytic residue; the residual ash, the pyrolytic residue, flyash, clay, and a pore-forming agent are subjected to mixing, pelleting, drying, and high temperature roasting so as to obtain the porous biological ceramsite product. Technology of the method is simple; operation is convenient; harmlessness treatment of fly ash and biomass pyrolysis gasification residue can be realized; the porous biological ceramsite product is prepared from waste incineration fly ash and biomass pyrolysis residue; quantity demand of ceramsite industrial on natural raw materials is reduced; and environment-protection value and economic value are both high.

A process for recovering the tin from the waste solution of tin or tin-lead generated by detinning PCB or preparing PCB includes such steps as distilling, adding KOH, NaOH, Na2CO3 or K2SO4 to regulate pH-6-10, filtering to obtain cake, adding to alkali solution, heating to 100-300 deg.C until it is fully dissolved, thermal immersing at 70-100 deg.C for 2-5 hr, cooling and centrifugal separating.

The invention relates to an ecological culture net cage capable of automatically sinking and floating to keep balance and relates to a culture net cage in the field of seawater culture equipment. The ecological culture net cage comprises a net cage frame which consists of buoyancy vertical pipes, top connecting pipes, bottom upper connecting pipes, bottom lower connecting pipes, internal tie bar pipes and ground anchors; a net cage sinking and floating system which consists of communicated air pipes, a head air pipe, air inlets/outlets and water inlets/outlets; and a net which consists of a top net, a bottom net, side nets and net ribs. The sinking and floating system is an automatic-balanced net cage sinking and floating system consisting of the buoyancy vertical pipes and air inlet/outlet valves and water inlet/outlet valves in the buoyancy vertical pipes, can realize the automatic-balanced sinking and floating of the net cage, is stable to be lifted up and lowered down and can prevent the net cage from getting turned upside down during sinking and floating. Since sea cucumber anti-wind and anti-wave adhering bases are arranged in the net, when heavy-wind and heavy-wave ocean currents are encountered, sea cucumbers can enter the adhering bases for inhabitation. Since a dual-layer net with a black inner layer and a light green outer layer is arranged and the internal part of the net is dark green, the net is particularly suitable for the growth habit of the sea cucumbers. The net cage has the advantages that the cultured sea cucumbers grow vigorously, the yield is high, the economic income of fishermen is good and the social benefit is remarkable.

The invention discloses a method for combined preparation of pineapple polyphenol and juice by taking pineapple peel as main material and application thereof. The method includes that pineapple peel is cleaned, pressed and separated, so as to respectively obtain pineapple peel slag and pineapple peel juice; the pineapple peel juice is subject to macroporous resin column absorption, powered activated carbon absorption, filtering and the like, so as to obtain clear juice with extremely low clear and brown stain degree; the pineapple peel slag is subject to alcohol digestion, vacuum concentration, dilution, macroporous resin column absorption and the like, so that pineapple polyphenol can be absorbed into the macroporous resin; the macroporous resin column used for absorbing polyphenol substance in the pineapple peel juice and pineapple peel slag digestion solution is eluted by alcohol solution, the elution is subject to methylene dichloride extraction, ethyl acetate extraction, concentrated drying and the like, so that pineapple polyphenol with purity more than 90% can be obtained and extraction ratio is more than 2.5g/kg. The invention has the characteristics of easy industrializedproduction, high yield, high production purity, obvious co-production economic benefit and has important significance on promoting recycling economy development.

The invention discloses a method for extracting silicon, silicon carbide and polyethylene glycol from silicon wafer slicing slurry. After the slurry is stirred at normal temperature, a solid stream and a liquid stream are obtained through physical separation. The solid stream enters a settlement separation device, and a silicon liquid stream and a silicon carbide liquid stream are obtained after reaction. The silicon liquid stream is mechanically separated so as to obtain solid silicon and liquid. The silicon carbide liquid stream is mechanically separated, rinsed at one time, dried and packaged. The recovered solid silicon is a basic raw material of a silicon wafer, and the recovered silicon carbide is an auxiliary material for silicon wafer slicing. The liquid stream part is added with a decolorizing agent and a filter aid, and then is subjected to mechanical separation; and the separated liquid is added with an ion absorbent and a filter aid, and then is subjected to mechanical separation, membrane filtration and dehydration so as to obtain the polyethylene glycol. The method can avoid pollution and is completely environment-friendly.

The invention discloses a slope protecting method based on a slope with a soil layer as the upper part and a rock layer as the lower part, wherein the upper part of the slope is the soil layer and the lower part of the slope is the rock layer. The slope protecting method includes the following steps that, 101, cleaning the slope: cleaning the miscellaneous articles away from the surface of the slope so as to level the surface of the slope; 102, carrying out basic construction on the slope; 103, piling up ecological bags on the surface of the rock layer of the slope; 104, hanging a net on the soil layer of the slope; and 105 duster-sowing plant seeds on the surfaces of the soil layer and the rock layer of the slope for protection. As the rock layer at the lower part of the slope adopts the ecological bags for protection and the soil layer at the upper part of the slope adopts the net hanging and duster-sowing for protection, and the advantages of the two slope protecting methods are integrated, the purposes of excellent protecting effect, greening, attractive appearance, excellent economical benefits are achieved at the same time.

The invention relates to a method for fast assessment on bearing capacity of a bridge based on a moving load test. The method is characterized by comprising the steps of 1 determining loaded vehicles and monitoring point arrangement, 2 arranging sensors in a field according to a monitoring point arrangement scheme, 3 driving the vehicles in the field and acquiring dynamic response of the bridge, 4 extracting the dynamic response of a bridge structure, 5 calculating static response and calculating static deflection and static strain according to maximum dynamic deflection, maximum dynamic strain and power increasing coefficient extracted according to a dynamic response curve of the bridge, and 6 assessing the bearing capacity of a tested bridge. The moving load test is conducted on the vehicles under the static load test condition at certain speed, so that acquired dynamic response is converted into static response by utilizing a formula, then the static response is compared with a theoretical calculating value and a relevant specification specified value, and further the bearing capacity of the bridge structure is assessed according to current specifications. The method for fast assessment on the bearing capacity of the bridge based on the moving load test has the advantages of saving time and labor and basically having no influence on traffic.

The invention discloses a method for co-production of de-boned raw chicken, chicken bone soup-stock and chondroitin sulfate using chicken skeletons. The method comprises the following steps: putting the chilled chicken skeleton in a deboner to separate a product A de-boned raw chicken and chicken bone residues; processing the separated chicken bone residues through hot-pressing extraction, vibrating residue removal and oil-water separation to obtain a bone soup and chicken bone oil, adsorbing and eluting the bone soup by using macroporous resins to obtain a product B chondroitin sulfate; processing the deoiled bone soup remained after the resin adsorption through double effect concentration or MVR concentration, homogenizing and blending the concentrated bone soup and the chicken bone oil to obtain a product C chicken bone soup-stock. The co-produced de-boned raw chicken has a fresh color, rich nutrition, a good emulsifying property of the de-boned chicken, and the de-boned raw chicken can be raw materials for meat product processing. The co-produced chicken bone soup-stock product has a delicate taste, a rich chicken flavor, rich nutrition, and can be used as a natural soup base in food. The purity of the co-produced chondroitin sulfate is 87.41%, and the molecular weight is 5.283e[+4].

The invention discloses a fructus momordicae high-yield cultivation technology allowing the fructus momordicae to be planted one time and harvested two times in a year, which is characterized by comprising the following steps: selecting high-yield disease-resistant and early-maturing tissue culture cutting seedlings for germchit; setting the field planting time before March 25; arranging a layer of 40-45 mesh fly net at area around and 50-60 cm above a conventional shed frame before field planting, and placing the fructus momordicae plants in the fly net; hollowing out a pan-depth pit on each planting hole three days before planting, applying 0.3 jin of compound fertilizer and 0.5 jin of biological organic fertilizer in each hole in such a way that the fertilizers are dissolved by water to spray at the periphery of the hole, and followed by soil covering so as to form a turtleback shape; and adopting a three-level vine branch for bearing fruits by the whole vine, reserving 12 fruit-bearing vines by each plant, after first time harvesting, carrying out shearing and reserving 10-14 branches by each plant for secondary fruit-bearing vines. According to the method provided by the invention, two harvestings in one year are achieved, the yield is improved, and the proportion of large and middle-size fructus momordicae is increased; and besides, continuous cropping can be realized, multiple harvestings in a year can be also achieved, both labor and investment are saved, and the economic benefits are remarkable.

A method for controlling the rock desert zone by use of bryophyte and dendrobe includes such steps as collecting wild bryophyte, stretching to decrease its thickness to 1-2 mm, dividing it into squares (1-100 sq.mm), reproducing in hothouse for 1-2 months, culturing the dendrobe seedlings in hothouse, stretching the reproduced bryophyte to decrease its thickness to 1-2 mm, dividing it into squares (1-100 sq.mm), transplanting the bryophyte on the surface of bare rock, and transplanting the dendrobe seedlings in said bryophyte layer.

The invention discloses an automobile historical data analysis method and an automobile historical data analysis system based on Internet of vehicles. A data collecting module 101 uses the Internet of vehicles 01 for obtaining mass automobile historical data, and the automobile historical data is stored into a vehicle use and tracking information list in a classified way through a first layer data analysis module 102 and a vehicle use and tracking information analysis module 103; further, the grading early warning information of each factor of the vehicle use and tracking information list is analyzed and decided through a grading early warning analysis module 104 and a risk analysis module 105; different data factors are correlated by aiming at different target people groups for analyzing and determining risk prompt information; and the risk prompt information is displayed to the target people groups through a display module 106. The method and the system provided by the invention have the advantages that fine automobile data service and consulting service can be simultaneously provided for five kinds of the target people groups including individuals, used-car sellers, insurance companies, automobile manufacturers and 4S shops; the vehicle information completeness and the value evaluation precision are high; the system development cost is reduced; the development efficiency is improved; and the expandability is high.

The invention relates to a health assessment method for a 500 kV high-voltage power transmission line in the mountain land occurrence environment. According to the health assessment method, with a 500 kV high-voltage power transmission tower where geology hidden dangers exist as the research core, internal factors for generating the geology hidden dangers of the power transmission line are described as external factors of tower footing bearing capacity and tower footing rock mass quality assessment, and based on a multi-factor combination control theory, relations between all the influence factors and the health state of a tower footing are described; the change of mountain land geomorphic features is expressed as the important factor for influencing a wind-induced vibration response, and wind speed, the wind-induced vibration response and the wind-induced vibration coefficient are needed by quantitative description in the process of health assessment on the power transmission line; a fine three-dimensional infinite element model is used for simulating a high-voltage power transmission tower system existing in the mountain land occurrence environment, and a high-voltage power transmission line health assessment analysis platform of multi-factor cooperative control is constructed with the tower footing geology hidden dangers and wind loads as main control factors, so that the quantitative index of the health state of the power transmission line is determined.

The invention discloses ultralight ceramsite prepared by totally taking solid waste as a raw material. The requirements on the mass fraction, moisture content and particle size of the components of the adopted raw material based on 100 mass parts in total are as follows: clay iron tailing accounts for 40-45 parts, the moisture content is less than 5%, and the particle size: the weight of screen residue of a 0.08mm square hole sieve is less than or equal to 5%; coal gangue accounts for 42-49 parts, the moisture content is less than 5%, and the particle size: the weight of screen residue of a 0.08mm square hole sieve is less than or equal to 5%; and the dewatered sludge from a municipal sewage treatment plant accounts for 10-13 parts, the moisture content is less than 5%, and the particle size: the weight of screen residue of a 0.08mm square hole sieve is less than or equal to 5%. In the preparation process, the preheating temperature is 500-600 DEG C, the roasting temperature is 1,250-1,350 DEG C, and the heating rate is 10-15 DEG C per minute; and the bulk density of the prepared ultralight ceramsite is 390kg/m<3>, the cylinder compressive strength is 1.2MPa, the moisture absorption is 3.8%, the requirements of GB/T 17431.1-2010 are met, a new means for large-scale utilization of tailings, coal gangue and dewatered sludge is created, and the ultralight ceramsite brings remarkable economic, environmental and social benefits.

The invention relates to the technical field of pulping and papermaking, in particular to a method for producing environment-friendly and high-resistance food wrapping paper. The method comprises the following steps: a layer of polyvinyl alcohol solution is applied to the surface of base paper; a layer of coating formed by constituents including polyvinyl alcohol, kaolin, modified starch, phosphoric acid and the like is applied after the layer of polyvinyl alcohol solution is dry; a layer of polyacrylic acid solution is applied eventually. The high-resistance food wrapping paper produced with the method has good water, oil and steam permeation prevention functions, and is efficiently and easily recovered by a paper mill, the yield of good pulp is larger than 85% after treatment such as pulping, pulp grinding, fluffing and the like, and good economic benefits and environmental benefits are achieved.

The invention belongs to the accumulator charging repairing technology field, specially an accumulator charging repairing system with electrical energy recycling and method thereof. The repairing system is composed of a battery repairing table, a battery rapid test table, a battery multifunction test table, a low voltage bus, a compensating charger, an emergency discharging load, a power supply system monitor, an energy storage battery group, a PC, a multi-access communication module and a barcode scanner, characterized in that: the battery repairing table, the battery rapid test table, the battery multifunction test table and energy storage battery group are connected to the low voltage bus. The energy storage battery group recycles and stores the electricity energy when the battery discharges through the low voltage bus. The electricity energy is provided by the energy storage battery group when needed to repair the battery. The electricity energy stored when discharging is recycled; the compensating charger automatically starts to charge the low voltage bus battery group when the volume of the power supply bus is not enough. The invention is scientific, rational, high efficient, active and has great economic benefit.

The invention provides the method for purifying electrolytic hydrogen. The method continuous dries electrolytic hydrogen with three drying tower, and every work cycle has three stages: when electrolytic hydrogen enters into I drying tower, the 10%-15% output hydrogen is divided to II drying tower, the waste hydrogen from II drying tower is cooled and put into III drying tower, the high-purity hydrogen from III drying tower is merged with the 90%-85% hydrogen from I drying tower, and the other two stages are similar with it. A cycle is72 hours, and switching operation is per 24 hours. The invention has the advantages of getting high-purity hydrogen, good economic benefit and protecting the atmospheric environment.

The invention discloses a continuous variable cross-section tunnel lining formwork trolley. An upright column (7) and an upright supporter (9) are respectively connected to the two ends of a portal moving cylinder (3); a side formwork positioning bracket (5) is connected to the outer side of the upright column (7); a lateral moving wheel (6) is arranged on a lower beam (13); in a cross section of the trolley, the upright columns (7) on two sides are connected through a portal cross beam (2) and a portal middle cross beam (4); in a vertical section of the trolley, the upright columns (7) on two sides are connected through an upper beam (11), a middle beam (12) and a lower beam (13); a crossing brace (14) is arranged between adjacent upright columns (7); a walking system (15) is respectively connected to the upright columns (7) and the lower beam (13); the portal cross beam (2) comprises an inner portal cross beam and an outer portal cross beam; the inner portal cross beam is arranged in the outer portal cross beam; the portal middle cross beam (4) comprises an inner portal middle cross beam and an outer portal middle cross beam; and the inner portal middle cross beam is arranged in the outer portal middle cross beam.

The invention discloses a process using catalyzing and oxidizing method on fume desulfurization and using catalyzing method on producing polyferric sulfate, a solvent containing ferric ion is used as the desulfurization absorption liquid, a sulfur dioxide in fume is absorbed and dissolved through the absorption liquid to convert into a sulfurous acid which can be oxidized into sulfuric acid by utilizing air base on the catalyzing and oxidizing effect of the ferric ion; when the concentration of the sulfuric acid in the desulfurization absorption liquid is between 3 percent and 10 percent, the desulfurization absorption liquid is introduced to the polymeric ferric sulfate synthesization system, simultaneously, ferrous sulfate and catalyzer are added, an oxidizing, hydrolyzing and polymerizing reaction occurs between ferrous sulfate, catalyzer and sulfuric acid of desulfurization absorption liquid, a desulfurization side product, polyferric sulfate is produced; so the invention can recycle the sulfur resource and get the high value-added desulfurization side product, the transportation fee is lower, the benefit from the desulfurization process is outstanding.

The present invention uses two-stage absorption apparatus to absorb toluene, butanone, and dimethyl formamide separately from the waste gas. The first stage of the absorption apparatus has dimethyl formamide as absorbent to absorb toluene and butanone, and the second stage of the absorption apparatus has water as absorbent to absorb dimethyl formamide. Toluene, butanone and dimethyl formamide are recovered via the vacuum evaporating recovering system matched with the stages. The present invention realizes the separation, recovery and reuse of toluene, butanone and dimethyl formamide without introducing new organic component. The present invention has high efficiency, low power consumption and reliable running.

The invention relates to a high-pressure grouting process of a water-rich weathering fracture rock formation below a thick unconsolidated formation for a coal mine. The process at least comprises the following steps of A) pipe fixing grouting, B) secondary drilling, C) grouting core pipe mounting and D) high-pressure grouting. Therefore, a thin grouting core pipe is tripped in a grouting hole, clearances are formed among the grouting core pipe, a secondary drilled hole and an orifice pipe, a pipe fixing and grouting stopping device is arranged on the front segment of the grouting core pipe, the pipe fixing and grouting stopping device is filled with pipe fixing materials, a thick pipe fixing layer can be formed, the pipe fixing materials cannot enter the stratum below the grouting stopping device, and it is guaranteed that the section of a grouted layer is fresh and is not polluted by pipe fixing liquid. The physical, chemical and mechanical property of the formed pipe fixing layer is stable, the continuity of the pipe fixing layer in the clearances is good, few defects exist, large grouting pressure can be borne, construction efficiency is greatly improved, grouting efficiency is high, grouting cost is low, the grouting effect is good, and the process can adapt to fast water plugging of water burst accidents.

The invention relates to a chloride ion penetration-resistant concrete doped with waste glass. The chloride ion penetration-resistant concrete doped with the waste glass comprises the following raw materials: 10-30 wt% of a cementing material (cement, glass micropowder and silica fume), 3-8 wt% of fine glass aggregate, 25-40 wt% of natural sand, 35-50 wt% of gravel, 5-15 wt% of water, and an admixture, based on the total mass of 100%, wherein based on the total mass of 100%, the cementing material (cement, glass micropowder and silica fume) comprises 70-85 wt% of cement, 10-20 wt% of glass micropowder and 5-10 wt% of silica fume. The chloride ion penetration-resistant concrete doped with the waste glass is prepared by the following steps: dosing the prepared glass micropowder, fine glass aggregate, gravel, cement and silica fume in proportion, adding into a mixer, and premixing for more than 20 s; adding the weighed admixture which is 0.5-1.5 wt% of the total mass of the cementing material, and water into the premix in a water-binder ratio of 0.38-0.55, and mixing for more than 120 s. The fine glass aggregate and the glass micropowder are prepared from the waste glass.

The invention discloses a belt conveyer key component automatic identification method based on infrared thermography. An acquired belt conveyer infrared image is preprocessed by adopting bilateral filtering and a piecewise linear transform algorithm; image segmentation is performed by adopting an improved region growing method; a Zernike moment is extracted to act as a shape feature vector for belt conveyer key component target classification, and entropy and contrast are extracted to act as a texture feature vector for belt conveyer key component target classification; and a classifier based on a BP neural network is designed, and classification and identification of the belt conveyer key component infrared image are completed by utilizing the extracted shape features and texture features. The key components in the belt conveyer infrared monitoring image can be automatically identified through integration of an infrared thermal imaging technology, a computer technology and an image processing and identification technology so that the necessary technical support is provided for fault early warning of a belt conveyer of an underground coal mine, and the method has important meaning for guaranteeing safe operation of the belt conveyer.