48results about How to "Many" patented technology

The invention provides a method for detecting related substances of troxagliptin succinate and its preparation. A diode array detector is used. The chromatographic column used in the method is an octadecylsilane-bonded silica gel chromatographic column, and the mobile phase A is phosphate Buffer, the mobile phase B is acetonitrile, and the volume ratio of the phosphate buffer to acetonitrile is 60:40 to 85:15, the pH of the phosphate buffer is 5.0 to 5.5, and the concentration of the phosphate buffer is 0.05~0.1mol / L, the detection wavelength is 278nm. The components in the analyte are completely separated, and the operability is strong. The analysis method has strong specificity, high accuracy and sensitivity, and strong adaptability, which provides the basis for ensuring the safety, effectiveness and controllability of drugs.

The invention discloses a device and method for mounting a wire rope of an architectural veneer. The device for mounting the wire rope of the architectural veneer comprises the veneer and is characterized in that: a connecting groove with a small opening and a large inside is arranged on the back of the veneer, not close to the edge; a connecting piece can be arranged in the connecting groove with a small opening and a large inside arranged on the back of the veneer, not close to the edge; the shape and the size of the cross section of the connecting piece are matched with those of the cross section of the connecting groove arranged on the back of the veneer, not close to the edge; the connecting piece is transversely inserted into the connecting groove; the direction of the connecting piece is changed from transverse to vertical so as to reach the top position of the connecting piece; the top position of the connecting piece is just positioned at a position with largest width in the connecting groove, and thus the connecting piece is buckled into the connecting groove; and one end of the wire rope is fixedly connected with the connecting piece, and the other end of the wire rope is connected with a building body. Therefore, perforating positions of the veneer and the building body do not need to be too precise and can be subjected to fine adjustment through the deformation ofthe wire rope when the veneer and the building body are connected with each other, thereby the accurate positioning and the firm connection between the veneer and the building body can be achieved. Moreover, the device for mounting the wire rope of the architectural veneer has the characteristics of simple structure, convenient construction and installation, and the like.

The invention relates to a macromolecule-cis-platinum compound, a preparation method and application thereof. The preparation method comprises the following steps of: degrading or purifying polyamino acid serving as a raw material to obtain a polyamino acid carrier with appropriate molecular weight; performing reaction of a small molecular acid serving as a modifier and side chain active groups of the small molecular acid, modifying a structure of the small molecular acid, and connecting cis-platinum to the polymer skillfully to prepare the medicine-carrying compound. The result of the study on the properties of the medicine-carrying compound indicates that the properties of the medicine-carrying compound are obviously superior to the conventional report, and the prepared compound is low in toxicity and does not have hemolysis.

The invention discloses a method for reducing active power loss of a double-fed inductive wind generation set. The double-fed inductive wind generation set comprises a wind turbine, an induction motor, a back-to-back converter and a transformer. The method comprises the following steps: (1) setting the active power scheduling value and a reactive power scheduling value of the double-fed inductive wind generation set; (2) decomposing the active power loss of the double-fed inductive wind generation set; (3) setting reactive power output of a grid-side converter to reduce the active power loss caused by the reactive power output of the double-fed inductive wind generation set; (4) setting a slip ratio of a rotor to reduce the active power loss caused by the active power output of the double-fed inductive wind generation set; (5) the sum of the minimum value of the active power loss caused by the reactive power output and the minimum value of the active power loss caused by the active power output is the minimum power loss of the double-fed inductive wind generation set. The method can reduce the active power loss of the double-fed inductive wind generation set and increases the energy conversion efficiency in the premise that the double-fed inductive wind generation set accepts power grid scheduling.