40results about How to "Shorten emptying time" patented technology

The present invention provides a novel benzamide derivative represented by formula 1 and an isomer, a pharmaceutically acceptable salt or hydrate thereof, and a composition for activating a 5-HT4 receptor comprising the same, as an active ingredient. Benzamide derivatives of the present invention has superior affinity for 5-HT4 receptors, capability to reduce the gastric evacuation time, capability to alleviate ventricular tachycardia, ventricular fibrillation, torsades de pointes and QT prolongation, and low toxicity. Therefore, benzamide derivatives of the present invention are therapeutically effective for digestive system diseases.

The invention relates to a concrete rheological preservative as well as a preparation method and an application thereof, and belongs to the technical field of civil engineering materials. The concrete rheological preservative comprises the following components in percentage by weight: 50-60% of fly ash, 5-20% of silica micropowder, 5-15% of limestone flour, 10-20% of metakaolin and 5-15% of silica fume. According to the concrete rheological preservative, the preparation method is simple, the rheological performance of concrete can be remarkably improved, and the sulfate corrosion resistance and chloride penetration resistance of the concrete can be greatly enhanced.

The invention discloses a special superplasticizer for high- and super-high-strength concrete and a preparation method thereof. The preparation method of the superplasticizer of the present invention comprises: using a solvent, a polymerizable monomer A, a chain transfer agent B, a polymerizable monomer I and an initiator to initiate polymerization to obtain an intermediate solution; then adding polyether C, amino acid D and the small molecule peptide E, while adding the auxiliary reaction reagent F to obtain an intermediate mixed solution; adding the intermediate mixed solution to the mixed solution of phosphoric acid composition G and water dissolved in a solvent to obtain the superplasticizer solution. Compared with commercially available common superplasticizers, the superplasticizer of the present invention is applied to high-strength concrete above C50, and its consumption can be significantly reduced to achieve the same fluidity, and the workability can be significantly improved under the same fluidity conditions, and the slump can be shortened. Shorten the emptying time of the cylinder and reduce the viscosity; when applied to ultra-high-strength concrete above C100, its advantages are more prominent, and the dosage and viscosity can be significantly reduced.

The invention discloses a gastric diversion apparatus and a digestive tract stent thereof. The digestive tract stent has a pre-expanded shape and a post-expanded shape, and the digestive tract stent comprises an upper bracket, a lower bracket and connecting pieces; when the digestive tract stent is represented in the post-expanded form, a first opening is formed in the top of the upper bracket anda second opening is formed in the bottom of the upper bracket; the lower bracket is arranged at the lower side of the upper bracket; a third opening is formed in the top of the lower bracket and a fourth opening is formed in the bottom of the lower bracket; the upper bracket and the lower bracket are connected via the plurality of connecting pieces; a membranous canal is connected to the fourth opening of the lower bracket, and the upper bracket and the lower bracket, which are expanded, cannot pass through an expanded pyloric ostium stomach; and the connecting pieces can pass through the pyloric ostium stomach or can be inserted in the pyloric ostium stomach. According to the scheme, the stent is fixed in two parts, wherein one part is fixed to the pyloric ostium stomach so as to firmlylocate the upper end of the membranous canal in the digestive tract during peristalsis of the digestive tract and the other part is fixed to duodenal bulb so as to prevent a circumstance that food cannot flow in accordance with a designed channel since the lower section of the extension membranous canal can return into a stomach quite easily during reversed peristalsis of the digestive tract.

A vacuum drier (1 ) for drying industrial hides (P), comprises: a body having a bearing structure (2) a pair of end uprights (4), substantially vertical guide means, a lower base (6) and an upper cover (7), a plurality of tables (12) for supporting the hides (P) which are adapted to be peripherally and sealingly coupled to define vacuum chambers (15); drive means for vertically moving the tables (12) along the guide means, which are connected to a power unit (16), heating means for the tables (12) for heating the hides, connected to a hydraulic station (17), vacuum means (26) adapted for selective connection to the tables (12) for drawing vapors released from the hides (P), control means (29) for controlling the drive means, the heating means and the vacuum means (26), a suction line for connecting the chambers with the vacuum means (26), a vapor manifold (30) and connection tubing (31). The vacuum means (26), the power unit (16), the hydraulic station (17) and the control means (29) are mounted to the bearing structure (2) in the plan projection of the body. The vapor manifold (30) is directly mounted to an upright (4) near the tables (12).