50results about How to "Conducive to long-term stability" patented technology

The invention relates to viral formulations and related pharmaceutical products for use in gene therapy and / or vaccine applications. Especially preferred viral formulations disclosed herein are liquid adenovirus formulations, which show improved stability when stored in about the 2-8° C. range while also being compatible with parenteral administration. These formulations comprise a buffer, a sugar, a salt, a divalent cation, a non-ionic detergent, as well as a free radical scavenger and / or a chelating agent to inhibit free radical oxidation.

The invention provides a cup and liner integrated acetabulum component and a preparation method thereof. The cup and liner integrated acetabulum component comprises an acetabulum cup, an acetabulum liner and a bone trabecula structure. The bone trabecula structure is arranged on the outer surface of the acetabulum cup, the acetabulum cup and the bone trabecula structure are formed integrally, theacetabulum liner is in melt connection with the inner surface of the acetabulum cup, and the inner surface of the acetabulum cup is a rough surface with a microporous structure. Preferably, the porosity of the bone trabecula structure is 50%-65%, the pore diameter of the bone trabecula structure is 300-800micron, the acetabulum cup is a metal acetabulum cup, the bone trabecula structure is a metalbone trabecula structure, and the acetabulum liner is a nonmetal acetabulum liner. The cup and liner integrated acetabulum component is structurally firm and stable, capable of improving post-surgical early-stage fixing effects and long-term stability, safe, simple and convenient to use, long in service life, ingenious in design, simple in structure and convenient and simple in manufacturing.

The invention relates to a method for hydrogenating a polymer containing an olefin unsaturated bond. The method comprises: hydrogenation is carried out under the condition that a solution of the polymer containing the olefin unsaturated bond is in contact with hydrogen in the presence of a hydrogenation catalyst, wherein a used hydrogenation reactor comprises two or more than two serially-connected reactors; a first reactor is divided into an upper section and a lower section; the upper section is provided with a filling section and the lower section is an empty tower section; the polymer solution flows through spray headers arranged at the top of the reactors and passes through the filling section by spraying downwards in a hydrogenation process; and then the polymer solution flows into the empty tower section; and reaction effluent of the first reactor is divided into two parts, wherein one part of the reaction effluent enters into a second reactor and the other part of the reactioneffluent is recycled into the first reactor after being subjected to heat exchange in a heat exchanger. According to the method disclosed by the invention, the contact area of the polymer solution and the hydrogen can be enlarged so that the polymer solution and hydrogen are in sufficient contact, thereby improving the hydrogenation efficiency. Furthermore, the temperature in the hydrogenation process further can be stably controlled and the catalyst deactivation caused by excessively-high temperature can be avoided, therefore, a product with ideal hydrogenation degree can be obtained within a longer operation period, and simultaneously the material consumption, the energy consumption and the operation cost in the hydrogenation process can be reduced.

The purpose of the invention is to provide an assembled acetabular prosthesis, a mounting method thereof and a bone defect grinding file device matched with the acetabular prosthesis, which can effectively improve the stability and the service life of the acetabular prosthesis after mounting. The assembled acetabular prosthesis of the invention is composed of an acetabular outer cup and a reinforcing block which is assembled and fixed on one side of the acetabular outer cup. The bone defect file grinder matched with the assembled acetabular prosthesis comprises a handle, a distal end of the handle is detachably mounted with an acetabular adapter, and one side of the acetabular adapter is provided with a notch. The handle is fixed with a rotating shaft sliding sleeve, the rotating shaft sliding sleeve is provided with a rotating shaft through hole on one side of the handle, the rotating shaft through hole is installed with a rotating shaft which can move freely along the axial directionof the rotating shaft through hole, and the rotating shaft is parallel to the handle. The proximal end of the acetabular fitting part is provided with an avoiding part, the rotating shaft extends through the avoiding part to the notch, the distal end of the rotating shaft is detachably mounted with a grinding file head, and the proximal end of the rotating shaft is provided with a connecting partfor connecting with the driver to transmit the torque of the driver.

The invention discloses an all-ceramic artificial hip-joint prosthesis and a preparation method thereof. The artificial hip-joint prosthesis includes a ceramic acetabulum and a ceramic femur. The outer surface of the ceramic acetabulum is hemispherical and is provided with mutually intersected annular grooves and longitudinal grooves; the inner surface of the ceramic acetabulum is in a ball-like shape; the ceramic femur comprises a femoral stem and a femoral head which are connected; the femoral head is attached to the ball-shaped inner surface of the ceramic acetabulum, and connects the ceramic femur with the ceramic acetabulum. Ceramic serves as the preparation material of the prosthesis, and the prosthesis has good abrasion resistance. Besides, the surface of the prosthesis is provided with the grooves, and therefore when the prosthesis is installed, people do not need to use bone cement for fixation and do not need the biological surface for bones to grow into. Stability is achieved through press fit of the prosthesis and bone tissue.

The electrolyte based on AlI3 has the general expression of AlI3(L)n+mM+wI2+xG+yCP+zA, where, the ligand L is organic matter capable of coordinating with AlI3 and the coordination number n is 0-6; the solvent M may be amines, alcohols, nitriles or other organic solvent or ionic liquid and the coordination number m is 0-2000; w as the molar ratio between simple substance I and AlI3 is 0-0.5; the gel G is organic small molecular weight compound or organic high molecular weight compound with the molar ratio to AlI3 x of 0-1; the ceramic powder CP has molar ratio to AlI3 y of 0-5; and the additive A is compound for improving the performance of the electrolyte with the molar ratio to AlI3 z of 0-2. The electrolyte has high long term stability, high conductivity and proper smelting point, and may be used in dye sensitized solar cell and other energy converting and storing devices.

The invention discloses a safety protection device and method for slope surface green restoration, and relates to the technical field of slope surface green restoration. The device comprises a slope surface, a wire net and earthwork standard rooms. The wire net is laid on the surface of the slope surface. Multiple main anchor rods are evenly distributed on the wire net in a penetrating manner. A retaining wall and a batten which are fixed to the slope surface are arranged at the bottom end and the top end of the wire net correspondingly. Multiple fixed walls are built between the retaining wall and the batten. The earthwork standard rooms are laid between the fixed walls and the retaining wall, between the fixed walls and the batten and between the adjacent fixed walls and are filled withplant soil. According to the safety protection device and method, the wire net is laid on the slope surface and is fixed through the retaining wall, the batten and the fixed walls, then the earthworkstandard rooms are laid in a segmentation manner to achieve safety protection on slope surface green restoration, relative stability of the safety protection device and the slope surface can be effectively increased, and normal growth of vegetation on the slope surface can be guaranteed.

The present invention provides a liquid crystal display panel and a gate drive circuit thereof. The gate drive circuit comprises a plurality of shift register circuit, and the plurality of shift register circuit are series cascade connected, and each shift register circuit comprises: a first pull-up holding circuit, coupled to the first node, the first clock signal, a first reference voltage and a second reference voltage, and employed to keep a low voltage level of the first node; a compensating circuit, coupled to the first node or the first pull-up holding circuit, and employed to compensate the voltage level of the first node or the first pull-up holding circuit. Thereby, the stability of long-term operation of the gate drive circuit can be promoted to raise the quality of the display panel.

The invention discloses a comprehensive energy system energy efficiency analysis method and system considering energy flow links, and the method comprises the steps: S1, analyzing the electric, hot and cold energy flow paths of a comprehensive energy system, dividing the energy flow links of the comprehensive energy system, and obtaining an energy flow model of the comprehensive energy system; S2, based on the energy flow model, analyzing the energy utilization efficiency of the integrated energy system from each energy flow link of the integrated energy system; S3, based on an analysis result, obtaining an energy utilization efficiency analysis calculation expression of the integrated energy system; and S4, analyzing the energy efficiency of the integrated energy system by adopting the calculation expression. Energy supply, conversion, transmission, storage and demand links of the comprehensive energy system are considered, flow of electric / hot / cold energy in the comprehensive energy system is analyzed, then the energy utilization efficiency of the comprehensive energy system is obtained, and the energy efficiency of the comprehensive energy system can be completely analyzed.

The invention discloses a preparation method of a slow-release polyurethane netlike carrier. The method includes the following steps that firstly, a polyurethane foam carrier is provided; secondly, ahigh-molecular mixed solution containing natural polymer polysaccharides, water and a enrichment culture medium is provided; thirdly, the high-molecular mixed solution is used for dipping the polyurethane foam carrier; fourthly, the polyurethane foam carrier obtained after dipping makes contact with a cross-linking agent to form reversible gel, and the slow-release polyurethane netlike carrier isobtained. The invention further provides application of the slow-release polyurethane netlike carrier in chemical wastewater treatment.

The present invention discloses a formula for prevention and treatment of acute severe pancreatitis combined with liver damage. The formula comprises a formula in a prevention stage and a formula in atreatment stage. The specific formula is as follows: in the prevention stage: 0.01-0.05 g / Kg body weight of radix scutellariae + 0.01-0.015g / Kg body weight of radix salviae miltiorrhizae; and in thetreatment stage: 0.01-0.05 g / Kg body weight of radix scutellariae + 0.02-0.03 g / Kg body weight of radix salviae miltiorrhizae. The formula has the prevention function on high-risk populations, has a certain degree of remission and control effects on occurrence and development of the disease, and effectively alleviates severity of the acute severe pancreatitis combined with the liver damage, breaksa limitation of "one prescription for thousand people" of traditional medicines using body weight as a basis for medicine use, enables the medicine use to be personalized and quantified as much as possible, conducts precautionary intervention on the high-risk populations in an early stage, groups, conducts early small dose prevention, can comprehensively adjust human body functions, is slightly increased in the medicine use dosage after the onset, can enable severity to be reduced and treatment difficulty to be low after the onset of patients, can be smoothly absorbed by human body, enables digestive system functions to be slowly and orderly restored, can promote rehabilitation and facilitates long-term stability in the future.