84results about How to "Not easy to grow" patented technology

The present invention provides a bioreactor having a system that can grow cells, tissue, etc. while maintaining or improving their function, and finally recover the cells as they are with good efficiency. The bioreactor has a porous sheet-form material disposed in its main body, the porous sheet-form material being formed from a nonwoven fabric, etc. having high cell affinity in order to retain cells. This porous sheet-form material has a thermosensitive polymer and a cell-adhesive substance incorporated thereinto, and the porous sheet-form material is not only cell-adhesive but also allows cells and tissue to be detached from the porous sheet-form material as they are by, for example, cooling from 37° C. to 25° C. Furthermore, in order to efficiently ensure the bioactivity or the survival of the cells, it is arranged so that circulation of a culture medium in a culturing space of the bioreactor is of a radial flow type.

A magnetic material antenna using a ferrite sintered body comprising one or more conductors disposed at least on a surface or in internal portion of the ferrite sintered body, wherein the ferrite sintered body is a sintered body of Y-type ferrite containing BaO, CoO, and Fe2O3 as main components and wherein the ferrite sintered body contains Cu and, in a cross section for the sintered body, an area rate of a cubic Co-rich phase, which has a ration of an amount of Co being higher than a Y-type ferrite phase being a mother phase, is 1% or less.

[Problems] To provide a high zirconia fused cast refractory that suffers less cracks in production and on heating, has excellent productivity, is hard to form zircon crystals with the refractory solely and under conditions where the refractory is in contact with molten glass, is hard to suffer cracks on receiving heat cycles in operation of a glass melting furnace, and has durability for a prolonged period of time.[Solution to Problems] A high zirconia fused cast refractory containing, as chemical components, from 85 to 95% by weight of ZrO2, from 0.4 to 2.5% by weight of Al2O3, from 3.5 to 10% by weight of SiO2, from 0.05 to 1% by weight in total of Na2O and K2O, more than 0.04% by weight and 1% by weight or less of B2O3, 0.02% by weight or less of P2O5, 0.05% by weight or less of MgO, from 0.01 to 0.2% by weight of CaO, in the case where any one of SrO and BaO is contained, from 0.3 to 3% by weight of SrO or more than 0.5% by weight and 3% by weight or less of BaO, and in the case where both of them are contained, 0.3% by weight or more of SrO and from 0.3 to 3% by weight in total of SrO and BaO, from 0.01 to 0.7% by weight of SnO2, and 0.3% by weight or less in total of Fe2O3 and TiO2.

A method for growing III-V nitride films having an N-face or M-plane using an ammonothermal growth technique. The method comprises using an autoclave, heating the autoclave, and introducing ammonia into the autoclave to produce smooth N-face or M-plane Gallium Nitride films and bulk GaN.

One aspect of the present invention generally relates to methods of sealing a wound or tissue plane or filling a void splace. In a preferred embodiment, the wound is an ophthalmic, pleural or dural wound. In certain instances, the compositions used to seal the wound or tissue plane comprises a polyalkyleneimine. In a preferred embodiment, the polyalkyleneimine is polyethyleneimine. Treatment of the polyethyleneimine with a cross-linking reagent causes the polyethyleneimine polymers to polymerize forming a seal. In certain instances, the cross-linking reagent is a polyethylene glycol having reactive terminal groups. In certain instances, the reactive terminal groups are activated esters, such as N-hydroxy succinimide ester. In certain instances, the reactive terminal groups are isocyanates. In certain instances, the polyethyleneimine has a lysine, cysteine, isocysteine or other nucleophilic group attached to the periphery of the polymer. In certain instances, the polyethyleneimine is mixed with a second polymer, such as a polyethylene glycol containing nucleophilic groups. In certain instances, the compositions used to seal the wound or tissue plane are formed by reacting a polyalkyleneimine bearing electrophilic groups with a cross-linking reagent containing nucleophilic groups. In certain instances, the electrophilic groups on the polyalkyleneimine are activated esters, such as N-hydroxy succinimide ester. In certain instances, the compositions used to seal the wound or tissue plane are formed by reacting a polyalkyleneimine bearing photopolymerizable groups with ultraviolet or visibile light. Compositions used to seal the wound which contain PEI or a derivative of PEI are found to adhere tightly to the tissue. Other aspects of the present invention relate to methods of filling a void of a patient or adhering tissue. In certain instances, the methods use a polyalkyleneimine. In a preferred embodiment, the polyalkyleneimine is polyethyleneimine. Another aspect of the present invention relates to a polymeric composition formed by exposing a polyalkyleneimine to an activated polyalkylene glycol. In certain instances, the composition is attached to mammalian tissue.

An organic photoelectric conversion device having a pair of electrodes and a light receiving layer which includes at least a photoelectric conversion layer and is sandwiched by the electrodes, the device including an electron blocking layer provided between the photoelectric conversion layer and one of the electrodes, and a hole blocking layer provided between the photoelectric conversion layer and the other of the electrodes, in which the hole blocking layer is a layer that includes a fullerene and / or a fullerene derivative and a transparent hole transport material having an ionization potential of 5.5 eV or more.

The invention provides an edible mushroom culture medium which comprises, by weight, 30-50 parts of biogas residues and biogas slurry, 30-50 parts of crop straws, 10-20 parts of grape pips and peels and a sterilizing agent with 0.5-2% of the volume-weight ratio. Hydrogen peroxide is adopted for the sterilizing agent, and the invention further provides a preparation method of the culture medium. The edible mushroom culture medium has the advantages that the grape pipes and peels comprise a large quantity of polyphenol substances and a large amount of linoleic acid and further have a certain bacteriostatic effect, so that more rich nutrition is provided for the culture medium, and the bacteriostatic effect enables the prepared culture medium not to be prone to being infected with infectious microbes; due to the fact that 35% of the hydrogen peroxide is selected and used for the sterilizing agent, the sterilizing effect is remarkable, in addition, due to the selection and use of the grape pips and peels, the culture medium is little infected with bacteria, in the process of high temperature sterilization, the culture medium is volatilized to generate water and oxygen, and no residue and contamination exist; a large amount of agricultural and stock farming waste such as the straws and the biogas residues and biogas slurry are further selected and used for the culture medium, so that reusing of the waste is achieved, and the culture medium meets the requirements of environmental protection and circular economy.

The invention belongs to the technical field of metal corrosion protection, and relates to a synergistic antifouling material based on microstructures and antifouling active substances and a preparation method thereof. The material is composed of matrixes formed by a plurality of microstructure base units with circular shaft structures, wherein the internal lower layer of each microstructure base unit is filled with an antifouling active substance, and the internal upper layer of the microstructure base unit is filled with a sealant. The process of the preparation method comprises steps of preparing microstructures, preparing the liquid antifouling active substances and preparing the synergistic antifouling material, and adhesion of fouling organisms is prevented through synergistic anti-fouling effect of the microstructures and the anti-fouling active substances. Components of the synergistic antifouling material are simple in structure, the material contains no nitrite, phosphate or heavy metals, and metal corrosion protection and inhibition effects on bacterial growth are good; the material is environment-friendly and safe, is a novel antifouling material based on new principles and new technologies because of adoption of surface microstructure properties and the anti-fouling active substances for synergistic fouling prevention, and has good promotion and application prospects.

The invention discloses a hygienic product. The hygienic product comprises a spacer layer, an absorbing layer and a bottom substrate layer, wherein the spacer layer is contacted with a human body; the absorbing layer is positioned in the middle; the bottom substrate layer is positioned below the absorbing layer and is far away from the spacer layer; the spacer layer is connected with the absorbing layer to form an absorbing body; the bottom substrate layer is detachably connected with the absorbing body; the absorbing layer consists of at least two sub-absorbing layers and at least one flow guide layer; the flow guide layer is arranged between adjacent two sub-absorbing layers; the sub-absorbing layers and the flow guide layer are superposed in turn from top to bottom; the flow guide layer is a flow guide net surface provided with deflector holes which are convex holes projecting outwards from the upper surface and the lower surface of the flow guide layer; bottom holes of the deflector holes are positioned on the flow guide net surface; and top holes of the deflector holes are far away from the flow guide net surface. The layers of the hygienic product can be split for using and can be used repeatedly, so the product has the characteristics of environmental protection, economy and excellent air permeability and prevents reverse leakage of liquid; and liquid absorbing situation can be directly observed from bottom, so a vivid prompt of the need of replacing the hygienic product is given to a user.

A magnetic material antenna using a ferrite sintered body comprising one or more conductors disposed at least on a surface or in internal portion of the ferrite sintered body, wherein the ferrite sintered body is a sintered body of Y-type ferrite containing BaO, CoO, and Fe2O3 as main components and wherein the ferrite sintered body contains Cu and, in a cross section for the sintered body, an area rate of a cubic Co-rich phase, which has a ration of an amount of Co being higher than a Y-type ferrite phase being a mother phase, is 1% or less.

[Problems] To provide a high zirconia fused cast refractory that suffers less cracks in production and on heating, has excellent productivity, is hard to form zircon crystals with the refractory solely and under conditions where the refractory is in contact with molten glass, is hard to suffer cracks on receiving heat cycles in operation of a glass melting furnace, and has durability for a prolonged period of time.[Solution to Problems] A high zirconia fused cast refractory containing, as chemical components, from 85 to 95% by weight of ZrO2, from 0.4 to 2.5% by weight of Al2O3, from 3.5 to 10% by weight of SiO2, from 0.05 to 1% by weight in total of Na2O and K2O, more than 0.04% by weight and 1% by weight or less of B2O3, 0.02% by weight or less of P2O5, 0.05% by weight or less of MgO, from 0.01 to 0.2% by weight of CaO, in the case where any one of SrO and BaO is contained, from 0.3 to 3% by weight of SrO or more than 0.5% by weight and 3% by weight or less of BaO, and in the case where both of them are contained, 0.3% by weight or more of SrO and from 0.3 to 3% by weight in total of SrO and BaO, from 0.01 to 0.7% by weight of SnO2, and 0.3% by weight or less in total of Fe2O3 and TiO2.

The disclosure relates to a method for preparing Ti(C,N)-based superhard metal composite materials, with Ti(C,N) powder and (W,Mo,Ta)(C,N) powder as main raw materials and Co powder as binding phase for preparation, thereby obtaining a material in which a microstructure is a double-core rim structure that has both a black core rim and a white core rim. The material has a complete and evenly distributed double-core rim structure. In the condition that the ensured hardness of the material is not reduced and even slightly increased, the toughness of the material is significantly improved, wherein the fracture toughness of the material is in the range of 11.3 to 12.5 MPa·m1 / 2.

The invention relates to a summer squash leaf-control high-yield unlimited vine hanging method. The summer squash leaf-control high-yield unlimited vine hanging method comprises the steps that when the number of leaves of each summer squash ranges from 5 to 7, spraying of 15% wettable powder 500-time dilution of a growth inhibitor MET is conducted from blades to cover tops, and after field planting is accomplished, soil is kept wetting immediately when the soil is dry; when the number of the leaves of each summer squash ranges from 7 to 8, vines of the summer squashes are hung, and all male flowers and female flowers existing before the eight leaves grow are removed; when the fruit setting period begins, flower dipping processing is conducted, one fruit is reserved for every two leaves, when the first fruit grows to meet the requirement that the length is 10cm, 10kg three-element fertilizer is used per mu, and is applied along with water, and fertilizer and water irrigation is conducted every 7-15 days; when the situation that the blade area becomes large, and the blades become thin appears, processing is conducted through the 15% wettable powder 500-time dilution of the MET, and when the fruiting vigorous period begins, top application of high-nitrogen and high-potash fertilizer is conducted. According to the summer squash leaf-control high-yield unlimited vine hanging method, the summer squashes are processed through the growth inhibitor, the increase of the blade area is inhibited, the blades of the summer squashes can become thin, and light transmission and the photosynthetic capacity are enhanced; the summer squashes are promoted to be robust in the earlier stage, the fruit setting period appears in advance, the fruit setting ratio is increased, after fruit setting is accomplished, growth and development of the fruits are quick, and the frequency of pest and disease damage is low.

The invention relates to the technical field of soil improvement, in particular to a soil improver for sandy soil of a dry land. The soil improver is prepared from the following components: rice huskcharcoal, peat, coal humic acid, kaolin, loosening agent, high-performance moisturizing agent, nutrition supplementing agent and composite amino acid, wherein the loosening agent is coal ash or talcumpowder; the high-performance moisturizing agent is prepared by compounding a porous carrier and water absorption resin by virtue of a special process, so that compared with the traditional polyacrylamide, the water absorption performance is higher, and the water retention performance is better; and the soil improver is good in combination effect with sandy soil, can improve the clustering effectof the sandy soil, can avoid the soil loss, and can significantly improve the water retention performance of the soil of the dry land.

The invention discloses a strawberry seedling culture plug which comprises soil hole units in parallel connection. Each soil hole unit comprises two symmetric soil holes (1) and a water guide block (2) positioned between the two symmetric soil holes (1), a supporting leg (3) is arranged at the bottom of each soil hole (1), the upper side walls and the lower side walls of the soil holes (1) project inwards, root guide grooves (4) are formed at four corners of each soil hole (1), small holes (5) for fixing drip irrigation belts are formed in two ends of the strawberry seedling culture plug, the middle of the water guide block (2) is high, and two side edges of the water guide block (2) are low. The strawberry seedling culture plug is reasonable in structural design and soil hole spacing and strong in practicability, excessive growth of strawberry seedlings due to excessive density is effectively prevented, air root-cutting can be realized, lateral root growth of the strawberry seedlings is stimulated, and root flooding can also be prevented. The plug is used with the drip irrigation belts with the drip hole spacing of 10cm, integrated accurate supply of strawberry plug seedling culture fertilizers, water and pesticides can be effectively realized, cost is saved, and diseases are decreased.

The invention discloses a crystalline glaze. The crystalline glaze is prepared from the following components in parts by weight: 10-100 parts of glass powder, 1-50 parts of zinc oxide, 1-50 parts of titanium dioxide, 1-30 parts of kaoline and 1-20 parts of barite. The invention further provides a preparation method of the crystalline glaze. According to the invention, the barite is added into thecrystalline glaze, is slowly decomposed under high temperature, and can release small bubbles to obstruct the growth of crystals, so that the shapes and sizes of the crystals can be controlled, and the shapes and sizes of crystal flowers of the fired crystalline glaze tend to be uniform, so that the crystalline glaze is especially suitable for batch production of different batches and whole sets of products; and in addition, the generation of porcelain explosion defects of products can be reduced and the finished product ratio can be increased.