45results about How to "Avoid mildew and other phenomena" patented technology

The invention provides a processing technology of a purified-cotton, high-count and weak-twist terry fabric. The processes of terry yarn processing, terry coiling, fast yarn coiling, weaving as well as bleaching and dyeing are adopted to produce the terry fabric with a better hand feeling from high-count cotton, wherein in the weaving process, a primary drying process is additionally performed, thereby effectively avoiding the phenomena of mildewing and the like of the coiled cloth, and improving the production efficiency. The invention also provides a loom for producing the purified-cotton, high-count and weak-twist terry fabric. The loom comprises a rack, and a cross beam, a harness frame mechanism, a beating-up mechanism and a cloth roller are arranged on the rack, wherein a tidying mechanism is arranged between the beating-up mechanism and the cloth roller, the tidying mechanism is transversely fixed on the rack, the tidying mechanism comprises a shell, the shell is of a clip-shaped structure, and a cloth penetrating hole for cloth to penetrate through is formed in the middle of the shell. A plurality of water absorption holes are uniformly distributed above and below the clothpenetrating hole and are used for absorbing water in the cloth passing through the tidying mechanism, thereby reducing the moisture in the cloth and reducing the mildewing phenomenon of the cloth.

The invention discloses an edge-sealed and opened building heat-insulating vacuum insulated panel and a manufacturing method thereof. The edge-sealed and opened building heat-insulating vacuum insulated panel comprises a core and a barrier film, wherein equidistant round holes, elliptical holes and rectangular holes are formed in two sides or a plurality of heat sealing edges of the edge-sealed and opened building heat-insulating vacuum insulated panel. When the edge-sealed and opened building heat-insulating vacuum insulated panel disclosed by the invention is applied to the building, the heat sealing edges of the insulated panel are mutually stacked and ventilation holes are vertically aligned and completely exposed, so that water vapor of a cement mortar layer between a wall body and the vacuum insulated panel can be smoothly evaporated and the phenomena that the inside of the wall body is mildewed and the like are avoided.

The invention provides a waterborne seam beautifying agent. The agent is composed of an A component and a component B according to the mass ratio of 1:1, the A component comprises preparation raw materials of 78-92 parts of bisphenol A type epoxy resin, 8-22 parts of polyether monoamine and 2-8 parts of hydrophilic gaseous phase silicon dioxide; the B component comprises preparation raw materialsof 20-25 parts of isophoronediamine, 18-28 parts of the bisphenol A type epoxy resin, 6-12 parts of emulsifiers and 4-8 parts of the hydrophilic gaseous phase silicon dioxide. The invention relates tothe technical field of environmental materials, the waterborne seam beautifying agent has the advantages that the formula is simple, the durability is high, a water erasable function is achieved to help to perform cleaning processing after construction, the agent has no toxin and harm after curing is conducted, there exists no VOC emission, the surface hardness is high, the scratching resisting performance is high, the agent has excellent flexibility and bonding performance, powdering, mildewing and the like are prevented, and the appearance is good.

The invention discloses a polypropylene ultra-silence pipeline and a preparation method thereof. A pipe wall comprises an outer layer, a middle foaming layer and an inner reinforcing layer which are sequentially arranged; the material of the outer layer comprises polypropylene, and the material of the middle foaming layer comprises polypropylene grafted by a metal organic framework material, and a foaming agent; the material of the inner reinforcing layer comprises polypropylene grafted by a metal organic framework material, and a plurality of spiral reinforcing ribs are arranged on the inner wall of the inner reinforcing layer. The metal organic framework material is grafted on the polypropylene matrixes of the middle layer and the inner layer, the metal organic framework material with the hollow porous structure can effectively improve the mute effect of the polypropylene material, meanwhile, the pipe can have good mechanical property, and the pipe can meet the use requirements in various complex environments.

The invention discloses a placement frame based on office supplies. The placement frame comprises a box body, a first U-shaped plate is fixedly connected to one side of the bottom of the inner cavityof the box body, the back surface of the first U-shaped plate is fixedly connected with a motor through a supporting plate, and an output shaft of the motor is fixedly connected with a first connecting rod; one end, far away from the motor, of the first connecting rod penetrates through the first U-shaped plate and extends to the outer side of the first U-shaped plate, and a first belt wheel is fixedly connected to the surface of the first connecting rod and located inside the first U-shaped plate; and the invention relates to the technical field of office supplies. The placement frame based on the office supplies has the functions of damp-proof and heat dissipation, the phenomena of moisture, mildewing and the like of the office supplies on the placement frame are avoided, so that unnecessary loss is reduced, the service life of the office supplies is prolonged, the office efficiency of users is improved, and the frame can be widely used, the placement frame for the office supplies can be more stable, and damage to the placement frame for the office supplies is avoided.

The invention discloses an embroidery frame with a monitoring function, which includes a support device and an embroidery frame, and is characterized in that the support device includes a base and two parallel support frames fixed on the base, and the embroidery frame and the support frame are connected by adjusting bolts. The embroidery frame includes two embroidery sticks and two side bars, and a display screen and a temperature and humidity sensor are arranged on the top of the support frame, and the display screen and the temperature and humidity sensor are connected to a power supply. The invention provides a monitoring function The embroidery stand can display the temperature and humidity on the display screen in real time, and can detect the temperature and humidity of the environment to avoid adverse effects on the embroidery due to excessive humidity, resulting in mildew and other phenomena; through the magnifying glass and lighting lamps and other components, the functions are complete , which is convenient for users to use.

The invention discloses a large-scale preparation method of a high-precision 1 / 2MS (containing carbon sources and fixed media) culture medium, belonging to the plant biotechnology field. The large-scale preparation method comprises the following steps: firstly computing the quantity demands after 18 elements contained in the medium are increased by 1000 times and the quantity demands after CuSO4.5H2O and CoCl2.6H2O with minimal quantity demands are increased by 10000 times; accurately weighing chemicals after increase; successively mixing the 18 elements uniformly according to the quantity demands and sealing a solid medium; dissolving CuSO4.5H2O and CoCl2.6H2O in the quantity demands with 1L of distilled water for later use; and respectively unsealing the solid medium as needed to be used. The large-scale preparation method has the beneficial effects that the medium prepared by the method has the characteristics of high precision, convenience and quickness in operation, simplicity in application and small errors between different batches and in the batches; the phenomena such as large errors, precipitation and mouldiness, caused by manual operations and impacts of external factors, are avoided; the method can be applied to the biotechnology such as plant tissue culture.

The invention discloses a large-scale manufacturing method of high-precision MT (containing carbon source) culture matrices and belongs to the technical field of plant biology. The large-scale manufacturing method comprises the following steps: firstly calculating the demand quantity of 15 elements contained in the matrices after amplifying by 1000 times and the demand quantity of CuSO4.5H2O and CoCl2.6H2O in the very small demand quantity after amplifying by 10000 times; accurately weighing medicines; sequentially mixing and sealing the 15 elements according to the demand quantity; dissolving CuSO4.5H2O and CoCl2.6H2O in 1L of distilled water for later use; and respectively unsealing and using according to needs. The matrices which can be prepared by the method have characteristics of high precision, convenience in operation, high speed, simple application and small errors between different batches and in the same batch; and furthermore, the phenomena of great errors, precipitation, mildewing and the like caused by influence of manual operation and external factors are avoided, and the method can be applied to plant tissue culture and other biotechnical applications.

The invention discloses a large-scale production method for a high-accuracy B5 culture medium, belonging to the field of plant biotechnology. The large-scale production method comprises the following steps: firstly, calculating the demanded quantities of 15 elements contained in the medium after 1000 times of amplification and the demanded quantities of CuSO4.5H2O and CoCl2.6H2O after 10000 times of amplification; accurately weighing the amplified medicine; sequentially mixing and sealing the 15 elements according to the demanded quantities respectively; dissolving CuSO4.5H2O and CoCl2.6H2O by 1L of distilled water for the later use; and unsealing as needed respectively. The high-accuracy B5 culture medium prepared by the method is convenient to operate, rapid, simple to apply, and has small errors of different batches and in the batches, avoids the phenomena of large errors, precipitation, mildewing and the like caused by the influences of manual operations and external factors, as well as can be applied to biotechnological application of plant tissue culture and the like.

The invention discloses a large-scale preparation method for an improved Nitsch basic solid culture matrix, and belongs to the field of plant biotechnology. The method comprises the following steps: firstly, calculating the demand quantity of 15 elements, amplified by 1,000 times, in the matrix; secondly, accurately weighing amplified drug quantity, wherein CuSO4.5H2O and Na2MoO4.2H2O need to be accurately weighed by a one ten-thousandth balance; thirdly, mixing the 15 elements according to the demand quantity successively and sealing; finally, unsealing for use according to the needs respectively. The matrix prepared with the method has the characteristics of convenience for operation, quickness, simplicity for application, different batches and small errors in the batches, avoids the phenomena of big errors, deposition, mildewing and the like caused by influence of manual operations of calculating, weighing and the like as well as external factors of weather, temperature, moisture and the like during preparation of a Nitsch liquid culture matrix, and can be applied to biotechnologies of plant tissue culture and the like.

The invention discloses a method for preparing an MT (mounting medium-and-carbon source containing) solid culture medium in a large scale and belongs to the technical field of plant biology. The method for preparing the MT (mounting medium-and-carbon source containing) solid culture medium in the large scale comprises the following steps: firstly calculating demanded quantities of eighteen components contained in the MT (mounting medium-and-carbon source containing) solid culture medium after being expanded by 1000 times; accurately weighing expanded quantities of medicaments, wherein CuSO4.5H2O and CoCl2.6H2O are accurately weighed by utilizing a ten-thousandth balance; successively mixing the eighteen components according to gradually increasing demanded quantities, namely the two components with the lowest demanded quantities are mixed firstly, then the component with the next-to-the-lowest demanded quantity is added, uniform mixing is carried out, and the process is repeated; sealing every 250g of solid culture medium in one fixed plastic container; and opening the plastic containers respectively as required during application. The method for preparing the MT (mounting medium-and-carbon source containing) solid culture medium in the large scale has the advantages that the MT (mounting medium-and-carbon source containing) solid culture medium expanded by 1000 times can be prepared, the characteristics of easiness and speediness in operation, simplicity in application, small error in different batches and small intra-batch error can be realized, and the phenomena, such as big error, precipitation and moulding, which are caused by manual operations such as calculating and weighing and external factors such as weather, temperature and moisture during preparation of MT liquid culture medium can be avoided, so that the method for preparing the MT (mounting medium-and-carbon source containing) solid culture medium in the large scale can be applied to biotechnical uses such as plant tissue culture.

The invention discloses a large-scale preparation method of an MT (carbon source-contained) solid culture medium, and belongs to the technical field of plant biologics. The large-scale preparation method comprises the following steps: firstly, calculating the demand amounts of 17 elements of the MT (carbon source-contained) solid culture medium after being amplified for 1000 times; accurately weighing the amplified amounts of medicines; sequentially uniformly mixing the 17 elements according to the demand amounts, and sealing the MT (carbon source-contained) solid culture medium; unsealing to use the solid culture medium according to demands. The method can prepare the MT (carbon source-contained) solid culture medium, has the characteristics of being convenient and rapid to operate, simple to use and small in errors of different batches and same batches, prevents the phenomena of large errors, deposition, mildew and the like caused by artificial operation and external factors, and can be applied to biological technical purposes such as plant tissue culture.

The invention discloses a massive preparation method of a high-precision MS (Murashige & Skoog) (containing carbon source) culture substrate, and belongs to the technical field of plant biology. The method comprises the following steps: calculating 1000-times expanded quantity demand of 17 elements contained in the substrate and 10000-times expanded quantity demand of CuSO4.5H2O and CoCl2.6H2O under extremely small quality demand; accurately weighting drug quantity after expanding; sequentially mixing the 1000-times expanded 17 elements according to the quantity demand from small to large; sealing; dissolving CuSO4.5H2O and CoCl2.6H2O with 1L of distilled water for later use; respectively opening to use as required. According to the method, the prepared substrate is high in precision; the method has the characteristics of being convenient and fast to operate, simple to apply, and small in error of different batches and the same batch, and is applicable to plant tissue culture and other biological applications.

The invention discloses a large-scale manufacturing method of high-precision C17 (containing fixed medium) culture matrices and belongs to the technical field of plant biology. The large-scale manufacturing method comprises the following steps: firstly calculating the demand quantity of 17 elements contained in the matrices after amplifying by 1000 times and the demand quantity of CuSO4.5H2O in the very small demand quantity after amplifying by 10000 times; accurately weighing medicines; sequentially mixing and sealing the 17 elements according to the demand quantity; dissolving CuSO4.5H2O in 1L of distilled water for later use; and respectively unsealing and using according to needs. The matrices which can be prepared by the method have characteristics of high precision, convenience in operation, high speed, simple application and small errors between different batches and in the same batch; and furthermore, the phenomena of great errors, precipitation, mildewing and the like caused by influence of manual operation, such as calculation and weighing and external factors, such as weather, temperature and water are avoided, and the method can be applied to plant tissue culture and other biotechnical applications.

The invention relates to a wood floor and a processing device and processing method thereof. The wood floor comprises a floor body, a left connecting plate, a right connecting plate and waterproof layers, the floor body is of a rectangular structure, the left connecting plate is installed on the left side of the floor body, the right connecting plate is installed on the right side of the floor body, clamping grooves are correspondingly formed between the left connecting plate and the floor body and between the right connecting plate and the floor body, and the waterproof layers are arranged in the clamping grooves. The wood floor can solve the problems that when existing equipment is used for machining wood floors, the machining effect is poor, the machining efficiency is low, the wood floors cannot be effectively grooved, the effect of matched installation of the adjacent wood floors is affected, follow-up use of the wood floors is not facilitated, meanwhile, when the existing wood floors are installed, the matching degree between the adjacent wood floors is low, gaps are prone to being formed between the wood floors, the interiors of the wood floors are prone to being affected with damp to deform, and the use effect of the wood floors is affected.

The invention discloses a massive preparation method of a high-precision 1 / 2 MS (Murashige & Skoog) culture substrate, and belongs to the technical field of plant biology. The method comprises the following steps: calculating 1000-times expanded quantity demand of 16 elements contained in the substrate and 10000-times expanded quantity demand of CuSO4.5H2O and CoCl2.6H2O; accurately weighting drug quantity; sequentially mixing the 1000-times expanded 16 elements according to the quantity demand from small to large; sealing; dissolving CuSO4.5H2O and CoCl2.6H2O with 1L of distilled water for later use; respectively opening to use as required. According to the method, the prepared substrate is high in precision; the method has the characteristics of being convenient and fast to operate, simple to apply, and small in error of different batches and the same batch, and is applicable to plant tissue culture and other biological applications.

The invention discloses a rice insect-proof storage method which comprises the following steps: removing impurities and drying, i.e., removing the impurities from harvested unhulled rice sequentiallyby an impurity removing machine, a stone removing machine and a magnetic separator; spreading the unhulled rice subjected to impurity removal to carry out hot air drying treatment, carrying out hot air preheating to the temperature of 40 to 60 DEG C until the water content of the unhulled rice is 10 to 15%, and then carrying out natural cooling to the room temperature; carrying out hulling and fresh preservation, i.e., sequentially processing the unhulled rice by a rice huller, a husked rice separating screen and a rice milling machine to obtain rice, carrying out spraying fresh preservation treatment, and spreading the rice under the natural wind to cool to the temperature of 15 to 25 DEG C; carrying out insect-proof storage, i.e., packaging the cooled rice, placing the packaged rice in awarehouse, spraying insect-proof liquid into the internal environment of the space of the warehouse so as to implement insect-proof treatment, and then sealing the warehouse; and carrying out ventilation treatment, i.e., carrying out fresh air replacement on air in the warehouse at each interval of 2 to 3 days, and spraying the insect-proof liquid again. According to the invention, the preservedrice is difficult to mildew and rot, is difficult to damage by worms, gloss and fragrance can be kept for a longer time, and the rice insect-proof storage method is valuable to popularize.

The invention discloses a large-scale preparation method of a high-precision B5 (containing carbon sources) culture medium, belonging to the plant biotechnology field. The large-scale preparation method comprises the following steps: firstly computing the quantity demands after 16 elements contained in the culture medium are increased by 1000 times and the quantity demands after CuSO4.5H2O and CoCl2.6H2O are increased by 10000 times; accurately weighing chemicals according to the chemical quantities after increase; successively mixing the 16 elements according to the quantity demands and sealing a solid medium; dissolving CuSO4.5H2O and CoCl2.6H2O with 1L of distilled water for later use; and respectively unsealing the solid medium as needed. The large-scale preparation method has the beneficial effects that the high-precision B5 (containing carbon sources) culture medium prepared by the method has the characteristics of convenience and quickness in operation, simplicity in application and small errors between different batches and in the batches; the phenomena such as large errors, precipitation and mouldiness, caused by manual operations and impacts of external factors, are avoided; the method can be applied to the biotechnology such as plant tissue culture.

The invention discloses a scale production method of a high-accuracy MS culture substrate, and belongs to the technical field of plant biology. The method comprises the following steps: firstly, calculating the quantity demand of 18 elements which are contained in the MS basic solid culture substrate and are enlarged by 1,000 times and the quantity demand of CuSO<4>.5H<2>O and CoCl<2>.6H<2>O which is enlarged by 10,000 times; accurately weighing drugs; sequentially mixing and sealing the 16 elements according to the quantity demand; dissolving CuSO<4>.5H<2>O and CoCl<2>.6H<2>O by using 1L of distilled water for later use; unsealing and using respectively according to the requirement. According to the method, the prepared substrate has the characteristics of high accuracy, convenience and quickness in operation, simpleness in application, small errors in different batches and in the same batches; particularly, the weighing errors of the drugs CuSO<4>.5H<2>O and CoCl<2>.6H<2>O with extremely low contents are avoided, and the scale production method can be applied to biological technologies such as plant tissue culture.

The invention provides a traditional Chinese medicine composition for treating diabetes. The traditional Chinese medicine composition is prepared from 20-40 parts by mass of radix astragali, 15-30 parts by mass of ginseng, 20-40 parts by mass of root of kudzu vine, 40-50 parts by mass of radix asparagi, 10-25 parts by mass of red sage root, 20-30 parts by mass of anemarrhena, 15-30 parts by mass of fruits of Chinese magnoliavine, 10-20 parts by mass of rhizoma atractylodis, 15-30 parts by mass of semen astragali complanati and 15-30 parts by mass of trichosanthes root. The invention provides a preparation method and a use of the traditional Chinese medicine composition. The solid particles effectively prevent mildew, guarantee finished product quality and prolong a storage life. At the normal temperature, in three years, bacterium growth, hardening and deterioration are avoided. The traditional Chinese medicine composition has economic and environmental protection values. The traditional Chinese medicine composition realizes discarding of the dross and selection of the essential and improves active ingredient content of unit weight of the drug. The traditional Chinese medicine composition has good treating effects on diabetes, has small side effect and has high safety.

The invention discloses a method for preparing a White (carbon-source-containing) solid culture medium in a large scale and belongs to the technical field of plant biology. The method for preparing the White (carbon-source-containing) solid culture medium in the large scale comprises the following steps: firstly calculating demanded quantities of sixteen components contained in the White (carbon-source-containing) solid culture medium after being expanded by 1000 times; accurately weighing expanded quantities of medicaments, wherein sodium molybdate dihydrate and copper sulphate pentahydrate are accurately weighed by utilizing a ten-thousandth balance; successively mixing the sixteen components according to gradually increasing demanded quantities, namely the two components with the lowest demanded quantities are mixed firstly, then the component with the next-to-the-lowest demanded quantity is added, uniform mixing is carried out, and the process is repeated; sealing every 250g of solid culture medium in one fixed plastic container; and opening the plastic containers respectively as required during application. The method for preparing the White (carbon-source-containing) solid culture medium in the large scale has the advantages that the White (carbon-source-containing) solid culture medium expanded by 1000 times can be prepared, the characteristics of easiness and speediness in operation, simplicity in application, small error in different batches and small intra-batch error can be realized, and the phenomena, such as big error, precipitation and moulding, which are caused by manual operations such as calculating and weighing and external factors such as weather, temperature and moisture during preparation of White liquid culture medium can be avoided, so that the method for preparing the White (carbon-source-containing) solid culture medium in the large scale can be applied to biotechnical uses such as plant tissue culture.

The invention discloses a large-scale manufacturing method of high-precision positive 14 (containing fixed medium and carbon source) culture matrices and belongs to the technical field of plant biology. The large-scale manufacturing method comprises the following steps: firstly calculating the demand quantity of 17 elements contained in the matrices after amplifying by 1000 times and the demand quantity of CuSO4.5H2O and CoCl2.6H2O in the very small demand quantity after amplifying by 10000 times; accurately weighing medicines; sequentially mixing and sealing the 17 elements according to the demand quantity; dissolving CuSO4.5H2O and CoCl2.6H2O in 1L of distilled water for later use; and respectively unsealing and using according to needs. The matrices prepared by the method have characteristics of high precision, convenience in operation, high speed, simple application and small errors between different batches and in the same batch; and furthermore, the phenomena of great errors, precipitation, mildewing and the like caused by influence of manual operation and external factors are avoided, and the method can be applied to plant tissue culture and other biotechnical applications.

The invention discloses a large-scale manufacturing method for a high-precision BL culture medium, and belongs to the field of plant biotechnology. The large-scale manufacturing method comprises the following steps: firstly, calculating required amount, which is increased by 1000 times, of 16 elements contained in the medium as well as the required amount, which is increased by 10000 times, of CuSO4.5H2O and CoCl2.6H2O which have low requirements; accurately weighing the drugs; mixing the 16 elements according to the required amount, and sealing; dissolving CuSO4.5H2O and CoCl2.6H2O with 1L of distilled water for later use; respectively opening according to the needs for use. The substrate increased by 1000 times prepared by the large-scale manufacturing method disclosed by the invention has the characteristics of being high in precision, convenient and quick to operate, simple to apply, and small in errors of different batches and within the batches, phenomena of large errors, precipitation, mildewing and the like caused by manual operation and external factor interferences during the preparation of high-precision BL liquid culture medium are avoided. The large-scale manufacturing method can be applied to the biotechnical purposes of plant tissue culture and the like.

The invention discloses a large-scale preparation method of a 1 / 4 MS (containing carbon sources) basic solid culture matrix, belonging to the plant biotechnology field. The large-scale preparation method comprises the following steps: firstly computing the quantity demands after 19 elements contained in the matrix are increased by 1000 times; accurately weighing chemicals according to the chemical quantities after increase; successively mixing the 19 elements according to the quantity demands and sealing solid matrices; respectively unsealing the solid matrices as needed to be used. The 1 / 4 MS (containing carbon sources) basic solid culture matrix increased by 1000 times can be prepared by the method, has the characteristics of convenience and quickness in operation, simplicity in application and small errors among different batches and in the batches and can be applied to the biotechnology, such as plant tissue culture.

The invention discloses a large-scale preparation method for an AA (carbon source-contained) solid culture medium, and belongs to the technical field of plant biologics. The large-scale preparation method comprises the following steps: firstly, calculating the demand amounts of 19 elements of the AA (carbon source-contained) solid culture medium after being amplified for 1000 times; accurately weighing the amplified amounts of medicines, and accurately weighing CuSO4.5H2O and CoCl2.6H2O by using a one over ten-thousand analytical balance; sequentially mixing the 19 elements according to the demand amounts, namely, firstly mixing two elements of the smallest amounts, secondly subsequently adding another element of which amount is slightly smaller than that of each of the two elements of the smallest amounts and thirdly uniformly mixing till the mixing is finished according to the rule; sealing every 250g of the solid culture medium in a fixed plastic container; unsealing to use the solid culture medium according to demands. The method can prepre the AA (carbon source-contained) solid culture medium which is amplified for 1000 times, has the characteristics of being convenient and rapid to operate, simple to use and small in errors of different batches and same batches, prevents the phenomena of large errors, deposition, mildew and the like caused by artificial operation such as calculation and weighing, and external factors such as weather, temperature and moisture when the AA (carbon source-contained) solid culture medium is prepared, and can be applied to biological technical fields such as plant tissue culture.

The invention discloses a scale production method of an MS basic solid culture substrate, and belongs to the technical field of plant biology. The method comprises the following steps: firstly, calculating the quantity demand of 18 elements which are contained in the MS basic solid culture substrate and are enlarged by 1,000 times; accurately weighing the enlarged drug quantity, wherein CuSO<4>.5H<2>O and CoCl<2>.6H<2>O are accurately weighed by using a one over ten-thousand balance; sequentially mixing the 18 elements according to the quantity demand; sealing 250g of the solid culture substrate into a fixed plastic container; unsealing and using respectively according to the requirement. According to the method, the MS basic solid culture substrate which is enlarged by 1,000 times can be prepared, and the method has the characteristics of convenience and quickness in operation, simpleness in application, and small errors in different batches and in the same batches, and can be applied to biological technologies such as plant tissue culture.