45 results about "Nutrient flow" patented technology

Corneal inlays and masks and methods of improving vision of a patient with corneal inlays and masks are provided. Masks with an aperture can improve the vision of a patient, such as by increasing the depth of focus of an eye of a patient. For example, a mask can have an annular portion with a relatively low visible light transmission surrounding a relatively high transmission central portion, such as a clear lens or aperture. This provides an annular mask with a small aperture for light to pass through to the retina to increase depth of focus. The mask may also include nutrient transport structures that provide nutrient flow through mask to prevent nutrient depletion. These nutrient transport structures can be configured to concentrate nutrient transmission near a center region of the mask to provide more nutrient flow near the center region.

The bioconversion of gas feedstreams to liquid products by direct contact with a layer of microorganism obtains enhanced productivity through the regular cycling of liquid across a substrate that supports a biolayer of microorganisms while separating the gas and liquid phases. Such processes produce liquid products such as ethanol, butanol and other chemicals from syngas components by contacting CO or a mixture of CO₂ and H₂ with a highly porous side of an asymmetric membrane under anaerobic conditions and transferring these components into contact with microorganisms contained within bio-pores of the membrane. A periodic laving of liquid from the liquid contact side to and away from the microorganisms can increase nutrient flow to the microorganisms while enhancing the recovery of liquid products. The process effects laving by temporarily raising the liquid phase pressure relative to the gas phase pressure to periodically surge liquid toward the microorganisms and then restoring the original pressure differential to urge liquid away from the microorgaisms.

A configurable hydroponic unit and system are disclosed. The configurable hydroponic unit (100) comprises a water tank (110). The water tank includes at least one partition bar (1114, 1115) and at least one movable dam element (150). The at least one separation bar is provided at the bottom edge of the tank for separating the water tank into a plurality of groove areas. The at least one movable dam element is movably mounted within the tank to prevent nutrient flow. Said at least one divider bar and said at least one movable dam element forming a configurable channel in which the nutrient solution flows within the tank. Due to its modular characteristics, the configurable water culture unit can be stacked in turn to form a multi-layer hydroponic system which enables the vertical circulation of the nutrient solution.

A cellular culture chip device includes a chip body. The chip body includes: a first flow channel having a first inlet end and a first outlet end and adapted to direct a liquid nutrient; a second flow channel adapted to direct a gellable culture medium; a medium retaining hole fluidly connected to the second flow channel and adapted to retain the gellable culture medium, the medium retaining hole having an opening connected fluidly to the first flow channel and adapted to expose the gellable culture medium to the liquid nutrient flowing through the first flow channel; a pump membrane adapted to control the flow of the liquid nutrient within the first flow channel; and a pressure channel unit to operate the pump membrane.

Disclosed are methods and devices for restoring or establishing nutrient flow to the nucleus pulposa. An implant comprises a nutrient flow path for extending between a source of nutrients and the nucleus pulposa. The implant is positioned within the patient such that a first end is in nutrient flow communication with a subject nucleus pulposa, and the source end is positioned in nutrient flow communication with a source of nutrients.

The invention discloses a long-term storable forage sugarcane tip, a preparation method and application thereof. The preparation method includes the steps of: (1) collection; (2) water regulation; (3) kneading crushing: kneading the material into filaments or sheets by a kneading crushing machine, and controlling the top part length within 6cm; (4) stretch film wrapping and silaging: bundling the sugarcane tip subjected to kneading crushing, and conducting wrapping and sealing, conducting low temperature fermentation for 30-50d in winter and fermentation for 20-40d in spring. With the technology of kneading, modulation, stretch film wrapping and silaging, the storage life is long, nutrient loss is little, setae can be softened, the digestibility and nutritive value are enhanced, carrying and long distance transportation can be convenient, and the forage cost of grass-feeding livestock is reduced.

The invention relates to the technical field of kitchen utensils, and discloses a household vegetable cutting device with functions of oblique slice cutting and oblique spiral cutting functions. The household vegetable cutting device comprises a base, the upper end of the base is connected with a supporting disk, and the left side of the supporting disk is fixedly connected with a bearing. A cutting device is connected in the bearing, and an arc-shaped groove is formed in the left upper part of the cutting device. The left upper part of the cutting device is connected with a sliding rack, andthe left lower part of the cutting device is connected with a fixed rack corresponding to the sliding rack. A steel wire is connected between the sliding rack and the fixed rack. A second driving device drives a gear to rotate through a rotating shaft, the gear is driven to rotate by teeth arranged on the left upper part of the cutting device, and the steel wire between the sliding rack and the fixed rack on the cutter device rotates to cut vegetables. The structure achieves the function of obliquely cutting the vegetables, therefore solving the problems of nutrient loss and poor condition offood materials cut by a cutting tool of the existing machine.

The invention provides a process for producing a plant root growth regulator by cow dropping, belongs to the technical field of fertilizer processing and application, and aims to solve the technical problems that: the production for maturing cow dropping by bacteria needs long time and more areas, the fertilizer has small effect to plant root growth, the utilization rates of nitrogen, phosphor and kalium in the fertilizer are low, more than 50 percent of nutrient flows into a river along with rainwater to form eutrophication, the water body is polluted, and coal and phosphate ore are wasted. The technical scheme adopted by the process comprises the following steps: uniformly mixing the cow dropping and ammonium sulfite; adding nitrogen to adjust the PH value of the mixture; and allowing a sulfonation reaction at a certain temperature to change the physicochemical property of lignin compounds in the mixture. The plant root growth regulator promotes plant root growth when being added into a fertilizer. The plant root growth regulator has the main usage that: when being used in the fertilizer, ammonium lignosulfonate promotes the plant root growth, and improves the utilization rate of nitrogen, phosphor and kalium through a developed root system, so that the fertilizing usage is reduced, the coal and phosphate ore resources are saved, pollution of nitrogen, phosphor and kalium which are lost along with water to pollute the water body environment is reduced, and the additional value of the cow dropping is improved.

The invention discloses a shallow shaft side infiltrating irrigation water saving irrigation method. Compared with the prior art, the method is high in technical content, low in work amount, low in facility cost, and small in floor space of a main facility, and ground operation is not influenced. Equipment is not needed to move in a production process, and manpower and energy are saved. No pipeline exists underground, and ploughing and turning up soil are not influenced. A self-flowing method is used, and almost not power is needed in an irrigation process. Water is irrigated from the lower part of a plough layer, irrigated water does not infiltrate through a soil surface, so surface soil continuous permeability is maintained, and breath of roots of plants is not interrupted, and development of the plants is not inhibited. The method would not make nutrition be washed away. The surface of soil keeps a dried state all along, and the soil layer is loose, air and optothermal are sufficient, biochemical action is active, and large amount of nutrient contents and carbon dioxide are generated, so plant growth is flourishing. The method keeps the surface of the soil layer dry and loose, and stops underground water evaporation, so water saving effect is more obvious. The method is worthy of popularizing and using.

The invention provides a sheep manure organic biological fertilizer. The sheep manure organic biological fertilizer is prepared from 60-80 parts of sheep manure, 10-20 parts of potassium fulvate, 10-15 parts of animal carcasses, 10-15 parts of meat and bone meal, 5-10 parts of cigarette factory waste, 2-5 parts of compound zymophyte and 2-5 parts of functional bacteria. The finished sheep manure organic fertilizer provided by the invention has the effective viable count of more than or equal to 0.5 billion/g, the pH value of 8.0-8.4, low water content and high fertilizer efficiency, can obviously improve the disease and insect pest resistance of crops, prevents the occurrence of insect pests, increases the content of organic matters in soil, enhances the soil fertility, and does not cause soil nutrient loss after long-term use. The sheep manure organic biological fertilizer disclosed by the invention is short in fermentation period, gentle and lasting in nutrient supply to plants and long in fertilizer efficiency, and has the characteristics of no toxicity, harmlessness, greenness and no pollution.

A device for growing plants is provided. The device has a panel assembly on which a one or a plurality of nutrient flow channels is supported to provide nutrient flow passages from an inlet at an upper region to an outlet at a lower region of the support panel. A plurality of grow pockets is supported on an opposite side face of the support panel, the grow pockets in alignment with the nutrient flow channels. Each grow pocket has a plant access opening. A fluid aperture in the support panel is disposed at a lower region of each grow pocket for fluid communication between an interior of the grow pocket and the aligned nutrient flow passage.

The invention relates to the technical field of agricultural fertilizer, in particular to multi-layer charcoal powder coated slow release fertilizer special for vegetables and a preparation method thereof. The multi-layer charcoal powder coated slow release fertilizer special for the vegetables comprises fertilizer cores, wherein the outer sides of the fertilizer cores are sequentially covered with multiple layers of charcoal powder coating layers, the charcoal powder coating layers contain charcoal powder, and the granularity of the charcoal powder contained in the multiple layers of charcoalpowder coating layers, which are arranged inside and out increase gradually. According to the multi-layer charcoal powder coated slow release fertilizer special for the vegetables and the preparationmethod thereof, the charcoal powder in different particle size is adopted for coating the fertilizer, fine charcoal powder envelopes formed by the charcoal powder from coarse to fine are arranged inside and out respectively, the fertilizer coating shell strength is improved, the pore structures and pore diameters of charcoal of different coatings are controlled, processes of moisture penetrationand nutrient flowing out are retarded, the slow release effect is improved, the problems of fertilizer abuse, low utilization rates and the like in our country can be effectively solved, and a clean efficient utilization direction is provided for utilization of the charcoal.

The invention relates to the technical field of planting of capsicum frutescens, and discloses an artificial planting technique for the capsicum frutescens. The artificial planting technique includesland selection and fertilization: selecting loose and fertile sandy loam soil and humus soil, turning up the soil, and applying farm manure, compound fertilizer and organic fertilizer; variety selection and treatment: selecting a high-quality capsicum frutescens variety with characteristics such as high and stable yield and high stress resistance according to local climatic conditions and occurrence features of pests and diseases, and soaking and washing seeds; and seeding and seedling raising: proceeding to the seeding stage in advance to seed, and setting up a greenhouse through plastic films to raise seedlings. The artificial planting technique for the capsicum frutescens has the advantages that through ahead-of-time seeding and timely picking, the growth cycle of the capsicum frutescens is prolonged, and the yield of the capsicum frutescens is increased initially; capsicum frutescens fruits are picked timely, nutrition loss of capsicum frutescens plants is reduced, and the yield ofthe capsicum frutescens is further increased; through fixed-spacing planting, the capsicum frutescens absorbs nutrients sufficiently and grows strongly, so that the multiple yield-increase effects are achieved.

The invention discloses an amphotericin B-producing recombinant streptomyces nodocus and its application. The recombinant streptomyces nodocus is obtained by knockout of competitive branches of amphotericin B in Streptomyces nodule ZJB2016050. Through the introduction of functional genes, the supply quantity of amphotericin B skeleton synthetic precursors is comprehensively increased, the utilization rate of nutrients by bacteria is increased, and the nutrient flow of the target product is changed. The yield of amphotericin B is increased by knocking out the competitive gene clusters. The yield of amphotericin B can be increased by 25%, the utilization rate of nutrient components of a culture medium during the fermentation process is increased, and the fermentation cycle is shortened and then the risk of contamination is reduced.

The invention discloses a feed crushing device capable of effectively retaining nutrition. The device comprises a crushing device housing, wherein the crushing device housing is internally provided with a working cavity, the inner wall of the rear side of the working cavity is fixedly provided with a crushing housing, the crushing housing is internally provided with a crushing cavity, the inner wall of the rear side of the working cavity is slidably connected with a feed receiving container located on the lower side of the crushing housing, a vibrating screen assembly is arranged in the working cavity, and the vibrating screen assembly comprises a sliding groove which is formed in the inner wall of the upper side of the working cavity and is in communication with the outside. According tothe device, mixed particle feed in a material discharging cavity can fall onto a filter screen through a through hole in an up-down vibration mode, feed particles meeting the requirements are automatically screened, nutrient loss caused by multiple times of crushing of the feed is prevented, the crushing progress can be controlled through the total weight of the feed in the feed receiving container, and the situation of excessive crushing of the feed through a machine generated when a breeder leaves is prevented.

The invention discloses a saturated steam direct heating and puffing tank. The saturated steam direct heating and puffing tank comprises a steam pipe, a puffing tank body and a heating shelf in the puffing tank body; the steam pipe is connected with the heating shelf, a vacuum tank is arranged on one side of the puffing tank body, and a vacuumizing pipe is connected between the vacuum tank and thepuffing tank body; a vacuum valve is arranged on the vacuumizing tank, and an indirect steam heating valve is arranged between the heating shelf and the steam pipe; a steam nozzle main pipe communicated with the steam pipe is arranged in the puffing tank body, and a steam nozzle is arranged on the steam nozzle main pipe. The tank has the advantages that saturated steam is directly introduced intothe puffing tank body, the time for heating food to a puffing point temperature is shortened, the food puffing point temperature is increased, the food is heated more uniformly, the puffed food quality is higher, and the nutrient loss is small.