610results about How to "Increase oxygen supply" patented technology

The invention applies to the tea crop production, which can improve the soil structure and provide adequate moisture, oxygen and nutrition to improve the yield and quality in tea crop cultivation. The invention relates to a liquid fertilizer containing microorganisms, organic matters and inorganic matters. The fertilizer adopts biological technology and electrolysis technology which complement each other, takes micro-organisms and mineralized substances as additive, as well as combines with nutritional formula (nitrogen, phosphorus, potassium, sulfur, magnesium, calcium, silicon, boron, zinc, iron, molybdenum, bacterial protein, amino acid, humus, plant nucleic acid, B vitamins, active enzymes and unknown factors which promote crop growth), so as to provide adequate nutrition for crops and improve soil to make the soil conducive to tea crop cultivation. Through biotechnology, the micro-organisms in a dormant state are added to the fertilizer and are activated under favorable environmental conditions to decompose the animal and plant residues, pesticides, fertilizers, heavy metal residues and minerals in the soil so as to change the contents of nitrogen, phosphorus and potassium. Through electrolysis technology, the mineralized substance additive enables the soil to produce a chain reaction to moisture and oxygen supply, so as to gradually change the ion charge in the soil, increase the soil oxygen supply amount, improve the moisture infiltration capacity and strengthen the conditions for microbial activities.

The present invention provides compositions and methods for resolving bioavailable oxygen supply to plants subjected to hypoxic stresses. Compositions of the invention comprise an oxidizing agent, wherein the level and rate of oxygen released from the composition is controlled. Use of the compositions of the invention address hypoxic stress and also stimulate plant growth, enhance plant vigor, and / or improve crop yield.

The invention relates to a special fertilizer for strawberry. The fertilizer is used for strawberry crops. By using the fertilizer, the structure of soil is improved, moisture, oxygen and nutrition are provided and yield and quality of the strawberry are improved. The invention relates to a fertilizer containing microorganisms and organic and inorganic matters. The fertilizer is prepared by using a biological and electrolysis technique and adding nutrient formulas (nitrogen, phosphorus, potassium, sulfur, magnesium, calcium, silicon, boron, zinc, iron, molybdenum, mycoprotein amino acid, humus, plant nucleic acid, Vitamin B, active enzymes and unknown factors for promoting growth of crops) based on microorganisms and mineralized substances as additives, and the obtained fertilizer can be used for modifying the soil so as to be beneficial to strawberry plant. Through the biological technique, the microorganisms in a dormant state are injected to the fertilizer. The microorganisms are activated under the beneficial environment, so as to decompose animal and plant residual bodies, pesticides, chemical manures, heavy metal residual hazards and minerals in the soil to further change the contents of nitrogen, phosphorus and potassium; and through the electrolysis technique, the soil generates chain reactions on moisture and oxygen supply by using the mineral additives so as to gradually change ion charges in the soil, increase soil oxygen supply amount, improve permeable capability of the moisture and enhance activity of the microorganisms.

A method and system for inactivating harmful organisms (e.g., red tide algae and dinoflagellates). The method includes the steps of supplying ambient air to a conditioning unit to generate conditioned air; passing the conditioned air to an ozone generator to generate ozone; mixing the ozone with water, from a water source, that contains the harmful organisms to generate ozonated water; delivering the ozonated water back to the water source to achieve dilution of the harmful organisms; at least partially isolating the water source from external water to prevent quick dilution of the ozonated water; and continually circulating water in the water source through the mixing step. The harmful organisms are inactivated by exposure to the ozone.

The invention provides process equipment for composting and rapid aerobic fermentation of sludge and an automatic control scheme for a composting and rapid aerobic fermentation process, belonging to the technical field of composting and aerobic fermentation of sludge. The process equipment and automatic control scheme provide optimal initial process conditions for microbial propagation in composting and aerobic fermentation of sludge, enable composting and aerobic fermentation of sludge to rapidly enter a high-temperature fermentation period, accelerate the processes of fermentation and decomposition, shorten a fermentation period, reduce cost and exert beneficial effect on reduction, harmless treatment and stabilization of sludge. The process equipment comprises a solar photovoltaic power generation system, fermentation tanks with in-ground insulation and heating functions, a gas collecting cover having aeration and heating functions, used for collecting water vapor and stink produced in the process of fermentation and capable of moving up and down, a biological deodorizing system, an air supply and heating system for a workshop in winter, a travelling crane-like manipulator-operated material distribution machine, a composting heap turner, a data acquisition trolley, displace trolleys, a boiler system and an automatic control system for batching of raw and accessory materials and for process flow.

The invention relates to a compact fresh air exhaust purification air conditioner all-in-one machine. The machine comprises a fresh air exhaust port, a fresh air-exhaust fan configured to lead in fresh air during forwards rotating and exhaust air to be exhausted from the all-in-one machine during reversely rotating, a guide plate for leading the fresh air to a filter device, a main air return inlet for leading in returned air from indoors, a filter module for purifying and filtering the returned air leaded from the main air return inlet and the fresh air guided by the guide plate, a secondary air return inlet arranged behind the filter module in a circulating air flowing direction and used for leading in the returned air from indoors, a circulating air fan for leading circulating air and leading in the returned air from the secondary air return inlet, a cooling device communicated with an air conditioner outdoor unit for cooling the circulating air and the returned air, and a circulating air outlet for outputting the circulating air. The all-in-one machine can realize fresh air, exhaust, purification and air conditioning functions, saves the space, reduces the noise, and saves electric energy.

The invention applies to the dragon fruit production, which can improve the soil structure and provide adequate moisture, oxygen and nutrition to improve the yield and quality in dragon fruit cultivation. The invention relates to a liquid fertilizer containing microorganisms, organic matters and inorganic nutrients. The fertilizer adopts biological technology and electrolysis technology which complement each other, takes micro-organisms and mineralized substances as additive, as well as combines with nutritional formula (nitrogen, phosphorus, potassium, sulfur, magnesium, calcium, silicon, boron, zinc, iron, molybdenum, bacterial protein, amino acid, humus, plant nucleic acid, B vitamins, active enzymes and unknown factors which promote crop growth), so as to provide adequate nutrition for crops and improve soil to make the soil conducive to dragon fruit cultivation. Through biotechnology, the micro-organisms in a dormant state are added to the fertilizer and are activated under favorable environmental conditions to decompose the animal and plant residues, pesticides, fertilizers, heavy metal residues and minerals in the soil so as to change the contents of nitrogen, phosphorus and potassium. Through electrolysis technology, the mineralized substance additive enables the soil to produce a chain reaction to moisture and oxygen supply, so as to gradually change the ion charge in the soil, increase the soil oxygen supply amount, improve the moisture infiltration capacity and strengthen the conditions for microbial activities.

The present invention discloses a method to make a microwave pretreatment to a solid organic waste material and then to prepare an organic composite fertilizer. The technics process is that: the solid organic waste material is to be crushed and then screened into a grain shape; the solid organic waste material includes crop straw stalk, domestic animal dejection, sugar-refinery waste residue or food garbage; the pH value of the solid organic waste material is to be adjusted to acid by a acid adjustable material; the solid organic waste material is pretreated by a microwave radicalization; the solid organic waste material after being pretreated with microwave is to be naturally stored or inoculated with microbe bacterium to be fermented. The organic substance after being fermented is to be mixed and milled with nitrogen, phosphor and kalium fertilizer. And then the organic composite fertilizer can be obtained. Because of adopting the pretreatment to the organic substance with microwave, the penetrated force is much stronger, the heat speed is fast and even; besides the present invention can sterilize and change the molecule structure for the organic substance quickly so as to shorten the corrupted mature period for the next stored fertilizer to 2-5 times; the present invention plays very importance to the environment protection and the development of the zoological agriculture.

A preparing method of a porous calcium phosphate filling material sequentially comprises the following technical steps: 1, uniformly mixing 5-15 parts by mass of calcium phosphate powder or 10-50 parts by volume of calcium phosphate slurry, 10-50 parts by volume of a sodium alginate water solution, 1-10 parts by volume of an adhesive and 1-20 parts by volume of deionized water, then adding 1-5 parts by volume of hydrogen peroxide or 1-50 parts by mass of a solid pore forming agent, and carrying out uniform mixing to obtain mixed slurry; 2, dripping the mixed slurry obtained in step 1 to a soluble calcium salt solution with 1-10% mass concentration to form a complex gel microsphere, and then curing, washing and drying the complex gel microsphere; 3, presintering the complex gel microsphere obtained in step 2 at 500-800 DEG C for 1-5 hours, then sintering at 900-1200 DEG C, and cooling to a room temperature after finishing sintering. The calcium phosphate filling material prepared according to the method is adjustable in grain size and controllable in crystalline grain size, and accordingly, is convenient to implant in clinic.

The invention discloses a polyurethane matte top-coat paint with a far infrared function, which comprises the following components in percentage by weight: 30-40% of modified fatty acid resin, 1-10% of nitrocellulose, 1-5% of nano ceramic powder, 1-5% of delustering agent, 0.01-2% of assistant agent, 10-20% of solvent and the balance of curing agent ((Desmodur) N3390BA / SN hexamethylene polyisocyanate of aliphatic polyisocyanate), wherein the modified fatty acid resin is selected from one or two of alkyd resin and acrylic resin, and the nitrocellulose is selected from one or two of nitrocotton and nitrocellulose resin. After the polyurethane matte top-coat paint with the far infrared function is formed into a film, under the irradiation of sunlight (especially ultraviolet rays), OH- is generated, which can be used for effectively removing indoor benzene, formaldehyde, sulfide, ammonia and odor substances and has a sterilization function. The polyurethane matte top-coat paint has the advantages of good environmental protection and infrared radiation function.

The invention discloses a combined type biological rotating disk treatment device which is composed of a water inlet tank, a biological rotating disk reactor, a biological drop filter tank and the like. The invention further discloses a method using the combined type biological rotating disk treatment device to treat sewage. Sewage firstly enters the water inlet tank, is pumped by a jet pump and enters all section of a biological rotating disk through a plurality of pipelines. After the sewage is nitrified and denitrified by the biological rotating disk, the sewage falls into the biological drip filter tank through a water distribution plate. After being filtered, one part of the sewage is drained, and one part of the sewage flows back to the water inlet tank. A casing is covered on the biological rotating disk reactor, the jet pump can supply oxygen fro the biological rotating disk reactor, and air in the tank is filtered by the biological drop filter tank to be drained. A dissolved oxygen and liquid level control device are arranged in the tank. The jet pump is controlled to be opened according to dissolved oxygen and water inlet liquid level. Thus, low-energy-consumption running is achieved.

The invention discloses an embedded integrated gas cooker. An integrated groove is enclosed by a bottom shell, and a through hole which corresponds to the groove is formed in a panel; a burner, a pan bracket and a control knob are arranged in the groove, the burner is arranged at the bottom of the groove and is embedded into the bottom shell, the pan bracket is correspondingly hung just above the burner, the pan bracket is lower than the panel, the control knob is arranged on one side of the groove and is embedded into the bottom shell, and the control knob is connected to the burner by virtue of a gas path. According to the embedded integrated gas cooker, the overall occupied space of the cooker can be reduced, and the cooking operation is convenient and stable.

A health-care food for preventing and treating atherosclerosis, hypercholesterolemia, hyperlipemia, hypertension, coronary heart disease, angina pectoris, tumor, etc, and balancing the functions of organs is prepared from 10 Chinese-medicinal materials including anemarrhena rhizome, ginger, wolfberry fruit, yam, etc.

The invention provides a method for breeding crayfishes in winter. The method for breeding the crayfishes in winter comprises the following steps of: (1) selecting and constructing a pond: the pond with a sufficient water source and no silt is selected, the selected pond includes a central shallow water area and a deep water area around the central shallow water area, and a slope is arranged between the two areas for transition; a water inlet and a water outlet are formed in the deep water area of the pond, filter screens of 30-50 meshes are arranged at the water inlet and water outlet, and temperature sensors are arranged on an inner side wall of the pond and the bottom of the shallow water area; a greenhouse is constructed above the pond and covered with thin film, a cover layer is addedonto the thin film, and a thermal insulation device is arranged in the greenhouse; (2) disinfecting the pond; and (3) performing feeding: crayfish seedlings with the length of 0.9-1.1 cm are put intothe cultivation pond prepared in the step (2), and feeding the crayfish seedlings with feed. According to the method for breeding the crayfishes in winter, it is made possible to breed the crayfishesin winter or in cold regions, the incidence is reduced, and the yield is improved.

The invention discloses a garbage incinerator which comprises an incinerator body, a combustor, a feeding notch, a movable baffle, fire bars, a chimney and incinerator legs. The inner wall of the incinerator body is provided with refractory bricks. The incinerator body is hollow to form the combustor. The top of the incinerator body is provided with the chimney. The upper portion of the incinerator body is provided with the feeding notch and the movable baffle. The bottom of the incinerator body is provided with the fire bars. The bottom end of the incinerator body is open to form an ash outlet. The bottom end of the incinerator body is provided with the incinerator legs. The combustor of the incinerator body is provided with a support used for distributing garbage. The support is arranged in the center area of the incinerator body. As the support used for supporting the garbage thrown into the incinerator body is arranged in the incinerator body, in the combusting process, when the garbage is thrown, flames of the lower layer are prevented from being put out, high temperature in the incinerator body can be kept continuously, various materials in the garbage can be fully combusted, the combustion rate is increased, and harmful gas can be effectively prevented from being generated.

The invention discloses compressive handling equipment and process for organic solid waste. The equipment comprises multiple material storage bins, a first mixer, a material compounding device, a fermentation box and a screening device. The multiple material storage bins are connected with a feeding opening of the first mixer and used for storing waste materials to be handled in a classified manner. A discharging opening of the first mixer is connected with the material compounding device. The discharging end of the material compounding device is connected with the feeding end of the fermentation box. The discharging end of the fermentation box is connected with the discharging end of the screening device. The material compounding device receives multiple types of waste materials. The multiple types of waste materials comprise waste materials from the first mixer. After all the types of received waste materials are added in proportion through the material compounding device, the waste materials are conveyed to the fermentation box for fermentation, and waste materials obtained after the fermentation effect is completed are conveyed to the screening device for screening treatment. By means of the equipment and process, automated and efficient operation of all links in the organic solid waste handling process can be achieved; the waste fermentation process is effectively monitored and adjusted in time; and handling efficiency and the handling effect are greatly improved.

The invention relates to an active extract for sanwei sandalwood as well as an extraction method and a medical application thereof. The extract comprises the following active components of medicaments: fructus choerospondiatis total flavonoids, fructus choerospondiatis total phenolic acid, nutmeg total lignans, nutmeg total phenolic acid, sandalwood volatile oil and nutmeg volatile oil.

Provided is a sleeping posture supporting apparatus for supporting and maintaining a person's entire body lying at full length (lying on one side) and increasing breathing capacity while sleeping so as to prevent the person from snoring, thus allowing the person to have a good sleep.

The invention discloses a crystalline beauty treatment mask and preparation method thereof, whose main compositions (by weight ratio) include 0.5-2% of agar or Kala gel, 0.5-3% of pre-gelatinized starch, 1-20% of glycerine, 0.1-3% of collagen, 0.5-3% of starch and balancing deionized water.

The moving guiding device of the invention is characterized in: the device comprising a projection glisten viewpoint moving guiding device (the carrier away from human eyes), and substance shining viewpoint and / or glisten viewpoint space displacement motion guiding device. The device can increase the pleasure of visual training, consolidate the learned knowledge, combine the eye muscle training, eyeball structure reset training, stereovision and fine eyesight training, form to a carrier with a shape of double form spectacle, and increase the oculomotor condition supervising function and stereo farther view function. The oculomotor condition supervising function can extend the applied age, increase conformability for children using. The stereo farther view function solves the problem of glass type myopia therapeutic equipments failing in farther view. The device can integrate the pastime, English learning, other cultural course knowledge learning, and treat through both hands participating in the game, prevent and treat during pastime, increase the agility of the fingers, and arrive at the purpose of improving intelligence.

The invention discloses a pharmaceutical composition for treating angiocardiopathy, and belongs to the field of traditional Chinese medicine. The pharmaceutical composition for treating the angiocardiopathy is characterized in that traditional Chinese medicine effective parts extracted from woodlice, panax notoginseng, salviae miltiorrhizae and uncaria are matched according to a certain proportion, preparation auxiliary materials are added, and corresponding tablets or capsules are prepared through a conventional method. The pharmaceutical composition for treating the angiocardiopathy has a good effect. According to the clinical application of the drug, the drug is good in effect, low in cost, pure in traditional Chinese medicine preparation and controllable in quality and has a better market prospect.

The invention discloses a gynecological operation auxiliary device. The gynecological operation auxiliary device comprises a leg support bracket (1) and a leg support pad (2), the leg support pad (2)is arranged on the leg support bracket (1), the leg support bracket (1) is used for being mounted on an operating bed, a leg binding belt (3) is arranged on the leg support pad (2), a sliding sleeve (4) slidably sleeves the leg binding belt (3), an air bag assembly (5) and a pressure sensor (6) are arranged at the sliding sleeve (4), a blood oxygen sensor (7) and a massage assembly (8) are arranged on the leg support pad (2); the air bag assembly (5), the pressure sensor (6), the blood oxygen sensor (7) and the massage assembly (8) are electrically connected with a controller. The device is used for massaging the legs of a patient during an operation, the restraining tightness is reasonable, blood backflow is promoted, lower limb nutrition and oxygen supply are improved, and meanwhile lower limb venous thrombosis is prevented. In addition, the invention further discloses an operating bed.

The invention provides a special conditioning and nourishing film for use at a genital of a woman. The special conditioning and nourishing film is a product formed by uniformly infiltrating conditioning and nourishing liquid on a non-woven fabric film and packaging the non-woven fabric film, wherein the conditioning and nourishing liquid is prepared from the following ingredients in percentage byweight: 0.5-2% of colorless nano silver solution (with the concentration of 1,000 ppm), 0.5-2% of vitamin E, 1-5% of aloe extract (with 3% solid content), 1-5% of ginseng extract (2.5% solid content), 1-5% angelica extract (3% solid content), 1-5% of lily extract (2.5% solid content), 1-10% of purslane extract (30% solid content), 0.001-0.005% of lauric acid-modified superoxide dismutase (the number of active cells is 4 million units / g), 0.2-1% of sodium carboxymethylcellulose, 0.01-0.1% of glutamic acid, 0.01-0.1% of arginine, 0.01-0.1% of folic acid and the remaining of deionized water; andthe non-woven fabric film is 50-100g / m<2> in gram weight, and is prepared from the following materials in percentage by weight: 50-99.9% of viscose fiber and 0.1-50% of Dacron. The special conditioning and nourishing film provided by the invention has the functions of killing bacteria, diminishing inflammation, contracting vagina, whitening the genital, increasing skin elasticity of the genital and the like.

The invention discloses a solid beverage containing Radix Puerariae. The solid beverage is prepared by using 50-80 parts by weight of a Radix Puerariae extract, 30-50 parts by weight of dark plum, 5-10 parts by weight of soya lecithin, 5-10 parts by weight of Chinese magnoliavine and 5-10 parts by weight of turmeric. The solid beverage solves the problem of the single efficacy of anti-alcoholic products, is prepared through using the essences of purely natural green plants, and can accelerate the liver metabolism, reduce the liver loss, improve the liver immunity and promote the absorption and decomposition of alcohol.

The invention provides an intraoperative and postoperative auricle intermittent positive pressure inflating device and belongs to the field of medical instruments. The intraoperative and postoperative auricle intermittent positive pressure inflating device comprises an outer shell, two air bags disposed in the outer shell and an air bag inflating and deflating control device connected with the air bags. The outer shell is provided with a sleeving opening and the two air bags are fixed to the inner walls of the outer shell on the two sides of the sleeving opening; a cavity for sleeving the auricle is formed between the two air bags. The width between the two air bags matches the width of the sleeving opening. The intraoperative and postoperative auricle intermittent positive pressure inflating device is used by sleeving the auricle with the sleeving opening, so that the fixation is convenient and falling-off is prevented; the inner walls of the two sides in the outer shell are provided with the air bags and the ear is located between the two air bags; through the inflating and deflating of the air bags, the auricle is massaged to promote the blood circulation of the auricle, the recovery speed is increased and the complications are reduced; the control device is used for the air bag inflating and deflating and comprises a pressure sensor and a wireless transmission module, so that a patient can freely set the massage force, frequency and time through an instrument terminal or a cell phone terminal when in need according to instructions of doctors.

The body building health preparation is prepared with ginseng, American ginseng, astragalus root, wolfberry fruit, manyprickle acanthopanax root and other Chinese medicinal materials. It may be prepared into various preparation forms, and can prevent, inhibit and eliminate atherosclerosis, regulate and balance the functions of internal organs, raise body's immunity, and resist diseases and pathogenic bacteria.

The invention discloses a culture medium capable of promoting the division growth of mesenchymal stem cells, which comprises a serum-free basic culture medium and an additive added on the basis of theserum-free basic culture medium, wherein the additive comprises a hibiscus mutabilis extract, seaweed polysaccharide, astragaloside IV, human serum albumin, transferrin, glutamine, platelet-derived factor, epidermal growth factor, fibroblast growth factor, human insulin growth factor and vitamin A; the hibiscus mutabilis extract has antioxidant and cell activating activity, and can effectively promote the growth of cell metabolic by compounding seaweed polysaccharide and astragaloside IV; human serum albumin, transferrin, glutamine and vitamin A provide essential nutrient substances for the growth of stem cells; platelet-derived factor, epidermal growth factor, fibroblast growth factor, human insulin growth factor and other cytokines together promote the rapid growth and proliferation ofstem cells; the culture medium not only can improve the growth activity of mesenchymal stem cells, shorten the culture time, promote the expression of cell growth factors, but also can maintain the stem cell activity of the differentiation potential of mesenchymal stem cells; stem cells are not differentiated in daily culture, thereby providing convenience for scientific research.

The invention discloses a nasal cavity channel diameter detection tube and relates to the field of medical consumables. The detection tube is provided with a detection tube body, wherein the front end of the detection tube body is provided with a guide part which is small in front and big in back, and the outer side of the detection tube body is provided with a length mark; the upper portion and the lower portion of the tube wall of the guide part are provided with through holes, a measuring air bag is arranged outside the portion, behind the guide part, of the detection tube body and connected with an inflator through an inflatable pipe via a one-way valve, and the inflator is provided with a scale which corresponds to the diameter of the measuring air bag and reflects the air injection amount; the detection tube body is connected with a breathing machine or an aspirator through an inlet and can provide an oxygen supply channel or suck secreta in the nasal cavity. The detection tube can achieve measurement of the passing diameter of the nasal cavity channel to provide a basis for choosing a proper cannula or catheter for a nasal trachea cannula and avoid aspiration by mistake caused by nasal mucosa damage and bleeding when an improper cannula or catheter is adopted.

The invention belongs to the technical field of air purification equipment and particularly relates to a culturing device for formaldehyde degradation bacteria. A reaction tank which is of a box-type structure consists of a tank cover and a tank body; an air inlet pipeline reaches the bottom of the reaction tank through the tank cover; an aeration pump is arranged at the outer end of the air inlet pipeline; a swirl-mixing aerator is arranged at the inner end of the air inlet pipeline; a micro-porous biological filtering membrane is arranged at the end, close to the aeration pump, inside the air inlet pipeline; a temperature controller is arranged at the lower right part inside the tank body; a sampling hole is formed at the lower right part outside the tank body; a tail gas absorbing bottle is arranged in a central line at the top outside the tank cover; a tail gas pipeline is led out from the tail gas absorbing bottle, penetrates through the tank cover and then is provided with a tail gas collecting opening; a supplementing pipeline penetrates through the tank cover and then is provided with a valve and a supplementing opening in sequence. The culturing device is simple in structure, safe to use, convenient in preparation method, reliable in principle and low in cost, is capable of reducing the risk of exposure to surrounding people, and is applicable to screening, acclimatization and batch culture of formaldehyde degradation bacteria.

The invention discloses a traditional Chinese medicine health-care pillow and a preparation method thereof. The pillow is characterized by being made from the following bulk drugs: llily magnolia, chrysanthemum, honeysuckle, cedar seed, british inula, wintersweet, atractylodes rhizome, lodestone, silkworm faeces, tea leaf, buckwheat and lotus leaf. The pillow is designed with a concave position according to cervical vertebrae of human body to balance sleeping position, when resting head on the pillow, heat from the body promotes drug diffusion, the respiratory system breathes in light and sweet fragrance without pungent flavor; the heat from the body promotes drug dissemination, and by a magnet, volatilization of the magnetic field and the drugs releases acupuncture points around the head, which can fully regulate equilibrium between yin and yang. The health-care pillow is made from various pure traditional Chinese medicines according to traditional Chinese medicine formula. Compared with the prior art, the health-care pillow has the advantages of no side effect, addressing both the symptoms and root causes and low cost, and is easily popularized.