72results about How to "Stable effect" patented technology

The invention discloses a laser-point cloud based method for extracting a mountainous road by use of a three-dimensional characteristic description model. The method comprises the steps of: preliminarily filtering non-ground points by using the information of times of laser-point cloud echo signals, and carrying out ground point filtering to obtain a ground point set; constructing the three-dimensional characteristic description model to extract mountainous road characteristics; establishing a grid index for the ground point set, carrying out local surface fitting, and solving a tangential slope value of a corresponding curve surface of a grid center point and endowing the value to the grids; calculating eight-directional slope differences of each grid and eight adjoining grids; determining a corresponding relation curve between the local slope differences and slope difference weights; introducing the eight-directional slope differences of the grids into the curve and summarizing the obtained weights to obtain a characteristic factor of each grid; determining a characteristic factor threshold value to filter non-road grids, and obtaining an initial road point set; setting a threshold value interval to filter the initial road point set, and obtaining a candidate road point set; and carrying out rasterization and binaryzation on an area where the candidate road point set is located, and obtaining a refined mountainous road.

The invention relates to a garlic seed taking ladle, a chain type garlic seed metering device and a garlic seed metering method. The garlic seed taking ladle comprises a seed taking ladle body, wherein the seed taking ladle body is formed by performing integrated injection molding on an upper plate, a side plate and a base plate; the side plate is arranged at the peripheral edge of the base plate; an opening is reserved in the side plate by virtue of coverage of the upper plate and is in semi-closed arrangement, and is a seed taking trough; a seed receiving trough is formed by encircling of the upper plate, the side plate and the base plate; the middle of the upper plate is arched; the base plate comprises a rectangular base plate I and a D-shaped base plate II; the side plate comprises a side plate I and a side plate II; the upper plate is connected with the side plate I; the side plate II is connected with the side plate I, the rectangular base plate I and the D-shaped base plate II; the D-shaped base plate II is provided with a slope of 5-10 degrees. The seed taking ladle of the chain type garlic seed metering device is the seed taking ladle body. The garlic seed metering method comprises the steps of perpendicular seed taking, horizontal seed clearing and seed falling. According to the garlic seed taking ladle, the chain type garlic seed metering device and the garlic seed metering method, the single garlic seed taking effect is stable, the seed taking speed is high, and the range is wide.

Provided are methods for introducing a molecule of interest into a plant cell having a cell wall by using a QD-peptide conjugate having a quantum dot (QD) with one or more cell penetrating peptides (CPPs). Methods are provided for genetically or otherwise modifying plants and for treating or preventing disease in plant cells comprising a cell wall.

The invention relates to a desulfurization method of medium and low grade cold rolling non-oriented molten silicon steel, which comprises the following steps of: (1) deoxidizing after tapping of a rotary furnace, pouring pretreated hot metal into the rotary furnace, smelting, tapping, adding lime, premelted slag and aluminum iron during the tapping process, adding lime, premelted slag and aluminum pills into steel ladles after tapping, blowing argon gas and deoxidizing while strongly agitating; (2) low-frequency desulfurizing at low frequency station, sampling, analyzing that carbon in molten steel is not greater than 0.05%, delivering power, blowing argon gas from bottom, agitating, cutting off power, blowing argon gas while strongly agitating, sampling and analyzing; and (3) relative-humidity decarburizing at relative humidity station, vacuumizing, sampling and analyzing carbon content and aluminum content in molten aluminum, wherein the blowing oxygen content is O<2>(Nm<3>)=molten steel quantity (ton)*0.4+{[C]%+[Al]}*10<3>; circulating in vacuum, sampling after adding aluminum when the carbon content [C] in molten steel is not greater than 0.0020%, and IVRH alloying when the C content in molten steel is not greater than 0.0025%. Sulfur in the medium and low grade cold rolling non-oriented molten silicon steel can be reduced to below 20 ppm.

The invention discloses a Paracoccus aminovorans LH-N40 CGMCC No.6971. The invention also discloses a heterotrophic nitrification-aerobic denitrification microbial inoculum which contains the Paracoccus aminovorans LH-N40. The invention also discloses a preparation method of the microbial inoculum. The microbial inoculum disclosed by the invention can solve the problem of difficulty in removing total nitrogen in the traditional reactor, can effectively remove ammonia nitrogen and total nitrogen in the water body in one reactor, has tolerance or degradation capability for phenols, amines, heterocycles, cyanides, polycyclic aromatic hydrocarbons and other toxic substances in wastewater, is especially applicable to nitrogenous chemical wastewater, has the advantages of simple treatment process, stable effect and environmental toxicant impact resistance, and has very wide application prospects in various actual nitrogenous chemical wastewater treatment processes.

A liquid crystal display panel, a display device, and a driving method thereof are disclosed. The liquid crystal display panel comprises a plurality of data line pairs, a plurality of scanning lines, and a pixel unit array, wherein the first scanning line and the second scanning line turn on TFT switches of two rows of pixel units simultaneously according to a scanning driving signal, and the first data line and the second data line charge the pixel electrodes of two rows of pixel units through the TFT switches according to a data driving signal.

The invention provides a decoration pollution deodorant which comprises collagen, vesicle hydrogel, sodium chloride, titanium dioxide, lithocholic acid, surfactants and deionized water. The decoration pollution deodorant is convenient to use, capable of performing disinfection and sterilization, purifying air and preserving and removing moisture and applicable to indoor environments such as newly decorated living rooms, offices, entertainment venues, hotels, automobiles, trains and shopping malls.

The invention relates to an incineration treatment method of nitrile-containing waste residues, and belongs to the technical field of treatment of hazardous wastes. According to the incineration treatment method of the nitrile-containing waste residues, a high temperature reclamation furnace is utilized, the nitrile-containing waste residues are subjected to harmless treatment through processes like batching, mixing, feeding, incineration and flue gas purification, treated slag is utilized as aggregate for preparing cementing materials, reduction, harmlessness and resource purposes of the nitrile-containing waste residues are achieved, a high temperature incineration treatment technology is mature, the industrialized operation effect is stable, and the flue gas standard reaches the national flue gas emission standard (GB18484-2001).

The invention discloses a method for online detection of a high impedance grounding fault of a distributing line and belongs to the field of electric power system protection and control. According to the method, the zero-sequence voltage waveform within two to three periods after the high impedance grounding fault occurs is detected, the harmonic frequency spectrum of the waveform contains the fault information of high impedance grounding, and the method can be used for online detection of the high impedance grounding fault. The method comprises the steps of acquiring the zero-sequence voltage harmonic wave of the secondary side feeder line of a transformer, determining the fault feature harmonic frequency (between 1000 Hz and 5000 Hz usually) according to the topological structure of the line, and judging whether the high impedance grounding fault occurs on the line by detecting the amplitude and frequency of the harmonic wave. The method is especially suitable for small current grounding systems not over 10kV, and only zero-sequence voltage signal acquisition and analysis are needed. Compared with existing judging methods, the method has the advantages that information acquisition can be conducted more conveniently, sensitivity is higher, the high impedance grounding fault can be effectively distinguished from other working conditions and fault types, the occurrence of miss trip and incorrect trip is reduced, and identification is more accurate.

The invention provides an efficient pipeline flocculating mixer which comprises a feed pipe, a stirring pipe, a discharge pipe and a stirrer, wherein the feed pipe, the stirring pipe and the discharge pipe are arranged in parallel and are communicated in sequence; the stirring pipe is a round pipe, and the two ends of the stirring pipe are blind ends; the stirrer comprises a driving motor, a stirring blade and a central shaft; one end of the central shaft is connected with the driving motor, and the other end of the central shaft is connected with the stirring blade; and the stirring blade is just contained in the stirring pipe. By solely arranging the stirring pipe in the shape of the round pipe, the axial length of the stirring blade meets the condition that the stirring blade is just contained in the stirring pipe, so that a dead zone can not occur, and the stirring is more sufficient.

A card connector has a housing with a base and a side rail extending from the base to define a card-insertion cavity. A plurality of conductive terminals are supported by the housing and extend at least partially into the card-insertion cavity for contacting a card inserted into the card-insertion cavity. A push-push style card locking and ejection mechanism retains the card in the card-insertion cavity upon a first push and which ejects an inserted card upon a second push. The mechanism includes a slide member positioned for slidable movement on the side rail and a biasing member contacting the slide member for selectively exerting an ejection force on the slide member. The slide member includes a slide surface that slides along a guide surface of the side rail. A damping material is interposed between the slide member slide surface and the guide rail guide surface for retarding movement of the slide member on the side rail in response to an ejection force from the biasing member.

The invention discloses an antistatic single-sided silicon-coated PET release film. The release film comprises a base film and a functional layer, wherein an antistatic coating is arranged between the base film and the functional layer; the antistatic coating is formed by an ethyl silicate series coating; the functional layer comprises the following components in parts by weight: 50-70 parts of conducting polymer resin, 30-50 parts of hydrogen-containing silicon oil, 3-5 parts of vinyl organosilicon resin, 1.2-2 parts of a composite stabilizer, 1-2 parts of a lubricant, 5-30 of a reinforcing agent, 0.02-0.05 part of a pigment and 5-8 parts of a flexibilizer. The antistatic coating formed by the ethyl silicate series has favorable electric conductivity, and static electricity on the surface of the release film can be taken away, so that the effect of eliminating the static electricity is achieved, and the static electricity eliminating effect is extremely steady and extremely good.

The invention discloses a green feed additive which can replace antibiotics in dorking diets and a preparation thereof, and belongs to the technology field of the greed feed additive. The invention are prepared by the steps that 27-49% of Chinese bulbul aqueous extract, 21-45% of purslane aqueous extract, 12-23% of dyers woad leaf aqueous extract, 7-16% of ash bark alcoholic extract are combined according to the compatibility proportion; the mixture is well mixed, crashed, and then passes 100 mesh sieve to be made into additive product. The invention serves as the additive which can completely replace antibiotics in dorking diets on one hand, increase feed intake, strengthen animal health and increase manufacture performance; the additive has no toxicity, side effects, and residue and 'three cause', does not pollute environment, and can provide livestock and poultry with higher quality for human as well as increase economic benefits.

Disclosed is a multi-source household type tap water and central air-conditioning hot water quadruple combined system. According to the system, well water energy sources serve as cold energy, biomass, or firewood, or coal combustion and solar energy serve as heat energy, a heat pump unit high in price and high in electricity consumption is not needed, and only a small amount of electricity energy is needed to drive several low-power water pumps. The system has the advantages that cost is low, the environment is protected, carbon emission is low, the effect is stable, using is not affected by weather, and electricity consumption is only one tenth that of a traditional central air-conditioning hot water triple combined system. The system has the functions of tap water, hot water, air conditioning refrigeration and air conditioning heating and is suitable for being used in areas where the cost of fuel such as firewood, biomass and coal is low, recyclable solar energy is rich, and renewable groundwater resources are rich.

The invention relates to a casting pouring metal-stream inoculation automatic monitoring system which comprises a system control cabinet, a master control unit, a display and input unit, a data collection unit and an execution unit. The display and input unit is connected with the master control unit through a signal line. The data collection unit comprises an intelligent instrument and a mass flowmeter which are in line connection. The mass flowmeter is mounted on a conveying pipe of a metal-stream inoculation agent. The master control unit is connected with the mass flowmeter. The executionunit comprises a pouring machine shutdown switch and an alarm. The pouring machine shutdown switch and the alarm are connected with the master control unit. The master control unit is further connected with a pouring machine operation switch on a pouring machine, an infrared molten iron detector and a metal-stream inoculation agent conveying motor encoder. The pouring machine shutdown switch and the pouring machine operation switch are in line connection. In the pouring process, the metal-stream inoculation agent is added timely, continuously and evenly, and therefore it is guaranteed that themetal-stream inoculation effect is stable, the performance of a casting gold phase and materials is stable, and defective products are reduced.

The present invention relates to a chewing gum formulation that serves as a means for awakening human consciousness and mindfulness to the sensorial subtleties, which in turn strengthens sovereignty such that overall psycho-spirituality is enhanced. More particularly, this invention relates to a dietary supplement consisting of the botanical plant Salvia divinorum as the source substance, including Salvinorin Alpha (A) as its primary active constituent, which is precisely extracted from S. divinorum to achieve a consistent dosing regimen predetermined for standardized efficacies.

The invention belongs to the field of electric power supply, and discloses a three-phase dry type transformer. The three-phase dry type transformer comprises a magnetic core, a coil and a stainless steel shell; and the shell is coated with a coating. The transformer has the advantages of good corrosion resistance, antistatic property, large mechanical strength, and electromagnetic shielding function.

The invention belongs to the technical field of traditional Chinese medicine preparations, and particularly relates to a traditional Chinese medicine fumigate-wash lotion for treating rheumatic arthralgia and an application method thereof. The invention provides the traditional Chinese medicine fumigate-wash lotion for treating rheumatic arthralgia. The lotion consists of the following raw materials in parts by weight: 15-30 parts of cassia twig, 50-70 parts of common clubmoss herb, 20-40 parts of garden balsam stems, 20-40 parts of orientvine vines, 20-40 parts of kadsura pepper stems, 20-40parts of Chinese starjasmine stems, 50-70 parts of suberect spatholobus stems, 20-40 parts of acanthopanax root bark, 20-40 parts of incised notopterygium rhizomes, 20-40 parts of doubleteeth pubescent angelica roots, 10-30 parts of common monkshood mother roots, 20-40 parts of Sichuan lovage rhizomes, 15-30 parts of eucommia bark, 20-40 parts of twotoothed achyranthes roots, 15-30 parts of frankincense, 15-30 parts of myrrh and 20-40 parts of oriental waterplantain rhizomes. The application method of fumigating and washing and medicinal bath foot soaking is simple and convenient, and easy tooperate. According to the pathogenesis of rheumatism arthralgia, the lotion suits the remedy to the case, has stable effect, quick effect and difficult recurrence, and has good effects on lumbar muscle strain, lumbago, lower limb pain, numbness, edema, knee joint pain, meniscus injury, myofasciitis and traumatic injury.

The invention discloses a preparation method and application of a sludge-based gas diffusion particle electrode. The method is characterized in that the method comprises the steps of: utilizing residual sludge of sewage treatment; doping an adhesive, a pore-forming agent and an activating agent; pyrolyzing and carbonizing the stirred sludge; and preparing a particle electrode subjected to electrocatalytic oxidation treatment, and arranging the particle electrode on plastic pipes in a stringed arrangement manner to prepare sludge-based gas diffusion particle electrode strings with the distanceof 2-3cm which is filled between a positive electrode plate and a negative electrode plate in a three-dimensional electrochemical reactor to serve as a catalyst, wherein aeration and electrocatalysisare integrated for electrocatalytic oxidation treatment of high-concentration organic wastewater and achieve the efficient and lasting sewage treatment effect. Compared with the prior art, the preparation method and application have the advantages of the high catalytic performance, effective alleviation of the inactivation of the particle electrode, the more stable effect and the longer service life, greatly enhance the gas-liquid-solid three-phase mass transfer effect in the particle electrode, further reduce the consumption of electric energy by the system, and implement an efficient and durable sewage treatment effect.

The invention relates to polishing equipment, in particular to steel tube polishing equipment for building materials. The steel tube polishing equipment can achieve uniform polishing and automatic polishing. The steel tube polishing equipment for the building materials comprises a base, a pushing mechanism, a rotating mechanism, a polishing mechanism, positioning mechanisms and the like. The pushing mechanism is arranged on the front side of the base, the rotating mechanism is arranged on the base, the polishing mechanism is arranged on the upper side of the front portion of the rotating mechanism, and the positioning mechanisms are arranged on the tops of the front side and the rear side of the base. According to the equipment, a telescopic rod of an air cylinder drives an arc-shaped frame to move forwards and backwards, the pushing effect is achieved, and manual pushing is not needed; a first straight gear rotates to drive a second straight gear to rotate, so that the second straight gear rotates, and the rotating effect can be achieved; and through mutual cooperation of the positioning mechanisms and a self-locking mechanism, a steel tube can be clamped and stabilized in the positioning mechanisms and the self-locking mechanism, and polishing can be stably conducted.

The invention discloses a western medicine for treating bacterial pneumonia. The western medicine is prepared from the following man raw materials in parts by weight: 2-6 parts of rhizoma cimicifugae ethylene glycol glycoside, 36-40 parts of halofuginone, 2-6 parts of isosinensetin, 6-10 parts of geraniin, 25-30 parts of poncirin, 7-14 parts of arecoline, 2-3 parts of cucurbitacine IIA, 29-31 parts of 6-feruloylspinosin, 2-4 parts of iIsoschaftoside, 2-4 parts of 3-hydroxy-morindone and 0.1-0.6 part of tracheloside. The raw materials are strictly selected according to the known mechanism of the bacterial pneumonia, so that the aim of comprehensive rehabilitation is achieved; and the western medicine has the characteristics of being high in effect taking speed, stable in action, convenient to carry and take and free of toxic or side effect after being taken for a long period of time.

The invention discloses a high-activity ganoderma product and a method for preparing the same. The high-activity ganoderma product comprises 10%-40% of high-activity ganoderma extract and 60%-90% of shell-broken ganoderma spore powder. The high-activity ganoderma product and the method have the advantages that the high-activity ganoderma product is made of ganoderma and the ganoderma spore powder,and is prepared by the aid of the method which includes steps of ganoderma endophytic bacterium and endophytic fungus biological transformation, acidic alcohol extraction, alcohol-soluble active component enrichment, water-soluble component dynamic extraction, spray drying, ganoderma spore powder efficient shell breaking, proportional mixing and the like; active components such as ganoderma triterpene and ganoderma polysaccharides of the high-activity ganoderma product prepared by the aid of the method are high in content, the high-activity ganoderma product is convenient to administer, the content of the ganoderma triterpene in the high-activity ganoderma product prepared by the aid of the method is higher than or equal to 10%, the content of the ganoderma polysaccharides in the high-activity ganoderma product is higher than or equal to 15%, and the like.

The invention provides an internal dust removal type pyrolysis and gasification device and method for organic solid fuel. The device comprises a reacting furnace, ceramic membrane tubes, a burner, a heat exchanging device, a condensing device, a gas storage tank, a reverse blowing pipeline and a temperature control device. One or more sets of the ceramic membrane tubes are fixed at the top end of the reacting furnace, after exhaust gas produced through pyrolysis or gasification or combustion of the organic solid fuel in the reacting furnace penetrates through the ceramic membrane tubes, gas-solid separation is achieved, the gas is exhausted out of the reacting furnace through a produced gas outlet, and small solid particles in the exhaust gas are blocked on the surface layers of the ceramic membrane tubes by the ceramic membrane tubes or fall into an ash hopper. The produced gas is stored in the gas storage tank after being cooled through the heat exchanging device and the condensing device, and the oil obtained through condensation is gathered into an oil gathering bottle. The gas stored in the gas storage tank can serve as the reverse blowing gas of the ceramic membrane tubes and also serve as the combustion-supporting gas for the pyrolysis and the gasification of the organic solid fuel of the reacting furnace. By means of the method, the energy utilization of the pyrolysis and the gasification of the organic solid fuel is further improved, pollution of fly ash to surroundings is reduced, and the effects of energy conservation and emission reduction are achieved.

The invention discloses a method for inhibiting rice from absorbing arsenic and cadmium by utilizing a gypsum composite, which comprises the following steps of: before rice is transplanted, the gypsumcomposite is applied to paddy field soil polluted by the arsenic and the cadmium, and the gypsum composite and the paddy field soil are fully and uniformly mixed; before rice filling, the flooding depth of paddy soil is kept at 2-4 centimeters; after the rice is filled, the surface layer of the paddy field soil is kept moist, and no flooded water layer exists. The gypsum composite has stable effect of inhibiting the rice from absorbing arsenic and cadmium, is easy to obtain, is economical and practical, and can continuously act on the rice for at least two growth seasons.

The invention belongs to the technical field of aquaculture molecular marker screening, and particularly relates to an SNP molecular marker for improving the disease resistance of procambarus clarkii and application. The method is characterized in that randomly collected procambarus clarkii RNA is respectively extracted, and cDNA is obtained through reverse transcription. A primer combination is designed according to procambarus clarkia disease-resistant gene Crutin gene and ALF gene sequences, a procambarus clarkia cDNA sample is subjected to PCR amplification through the primer combination, a target fragment is obtained, agarose gel electrophoresis is used for detection, and it is confirmed that the target fragment is amplified. A cDNA sequence of the procambarus clarkii is obtained by a first-generation sequencing means, sequence comparison is carried out, SNP sites in Crustin and AFL gene coding regions in a procambarus clarkii population are identified, and the two genes and a combination thereof are typed; and the differences of the disease resistance of the genotypes are compared, and screening is carried out to obtain the genotype with the strongest disease resistance and the combined marker primer thereof. The invention can be used for assisted selection.

The invention provides a plastic pipe material extruding opening mold, which comprises an opening mold main body, a scraping ring and an opening mold lock cover, wherein the opening mold main body is a rotary body, the inside of the opening mold main body is hollow, the back end of the hollow part inside the opening mold main body is provided with a compression passage in a digging way, the diameter of the back end of the compression passage is great, the diameter of the front end is small, the diameter is gradually reduced in the extending process from the back end to the front end, a forming massage is formed at the front end of the compression passage in an extending and digging way, the front end of the forming passage is outwards provided with an installing groove in a digging way, the scraping ring is arranged in the installing groove and is made of polytetrafluoroethylene materials, one side of the scraping ring facing the passage is provided with an inclined surface, the forming passage and the inclined surface are in smooth transition and connection, the inside of the opening mold lock cover is hollow, the opening mold lock cover is arranged outside the front end of the opening mold main body, a front baffle wall is arranged at the front end of the opening mold lock cover, a through hole is formed in the center of the front side surface, and the dimension of the through hole is grater than the diameter of the forming passage. The plastic pipe material extruding opening mold belongs to the field of a mold for plastic pipe extrusion processing.

The invention discloses a low-speed massage water outlet assembly. The low-speed massage water outlet assembly comprises a shell and a water outlet panel which are connected in a matched mode, a water passing inner cavity is formed by the shell and the water outlet panel, a rotatable impeller is arranged in the inner cavity, a transmission gear synchronously rotating with the impeller is arranged below the impeller, an inner gear is arranged on the peripheral side of the inner cavity, and a planet wheel and a planet carrier which are matched with each other are arranged between the transmission gear and the inner gear; and the water outlet panel comprises a water outlet nozzle, and a baffle capable of plugging the water inlet end of the water outlet nozzle is further arranged on the planet carrier. According to the low-speed massage water outlet assembly, a planet carrier assembly of a planet wheel system is used for hole blocking and speed reduction, meanwhile, the speed reduction ratio is adjustable, and finally the massage water output from the water outlet nozzle of the water outlet panel is stable and comfortable in effect.

The invention provides preparation for anti-tumor compound medicine active ingredients. The compound comprises the following medicines: sculellaria barbata, Chinese lobelia, oldenlandia diffusa and windpipe trachea. The preparation for compound medicine active ingredients comprises the following steps: first, all the medicinal materials of the compound are crushed; second, extraction is carried out with medicinal ethanol for 3 times, filtration is carried out and the extraction solutions are mixed, ethanol is recycled and a dry extract is obtained; third, the dry exact is subjected to ultrasonic dissolution with water, a suspension is obtained, extraction is carried out for 3-5 times by utilization of isopyknic ethyl acetate, the extraction solutions are mixed, heating decolouring is carried out with active carbon, ethyl acetate is recycled and a solid is obtained; fourth, the solid is dissolved through squeezing with petroleum ether, filtration is carried out, insoluble substances are obtained, namely the active ingredients are obtained. The anti-tumor effects are stable, the active components are clear, the quality is controllable, the technology is simple, the preparation method is suitable for industrial production and the officinal prospect is wide.

The invention discloses a drying device for a clay sculpture. The drying device comprises a drying room, wherein a charge hole and a discharge hole are separately formed in the outer side walls of twosides of the drying room; the two sides of the drying room are separately equipped with a drive roller and a driven roller; the bottom end of the drive roller and the bottom end of the driven rollerare equipped with supporting rods; two insertion rods are symmetrically mounted on the outer side wall of the drive roller and the outer side wall of the driven roller; the insertion rods separately penetrate through the supporting rods and extend to the outer sides of the supporting rods; a conveyor belt is co-wound on the outer side wall of the drive roller and the outer side wall of the drivenroller; the clay sculpture is placed on the conveyor belt; a drive device is connected on the drive roller; the top end and the bottom end of the drying room are uniformly equipped with a plurality offirst heaters and a plurality of second heaters separately; and a fragment outlet is formed in the bottom wall of the drying room. The de-moulded clay sculpture is placed into the drying room, and the clay sculpture is dried by the first heaters and the second heaters, so that drying efficiency of the clay sculpture is improved, and influences of a climatic environment are basically avoided in aclay sculpture drying process, and therefore, the effect of the clay sculpture is stable.