Abstract: A method for preparing aluminum foam sandwich material by rotating friction extrusion and electromagnetic pulse hybrid process includes: step 1: preparing the filler; step 2: processing the filler to prepare a plurality of preforms; step 3: clamping and fixing the plurality of preforms to form a preform assembly; step 4: welding the panel on the surface of the preform assembly to form an non-foaming sandwich material; step 5: heating and foaming the non-foaming sandwich material through a foaming mold; step 6: insulating the foaming mold after completion of foaming; injecting cooling water into the foaming mold after completion of insulation to maintain pressure and shape, forming the aluminum foam sandwich material of the required shape. The aluminum foam sandwich material produced by this method has good interface bonding, no adverse interface reaction, high bending resistance, impact resistance, and excellent sound absorption and insulation properties.

Abstract: A dispenser, a water inlet system, and a laundry treatment apparatus. The dispenser includes a dispenser body; an X-shaped channel, the X-shaped channel being formed within the dispenser body, the X-shaped channel including a first channel and a second channel intersecting each other, the first channel including a first water inlet section and a first water outlet section, the second channel including a second water inlet section and a second water outlet section; a third channel, the third channel being arranged between the first water outlet section and the second water outlet section, the third channel being in communication with the X-shaped channel, and an inlet of the third channel being arranged at the intersection of the first channel and the second channel.

Abstract: A distributor, a water intake system, and a laundry treating device. The distributor includes a base, the base including a water accommodating portion which is used to define a water flow boundary, and an insertion portion being formed at an upper end of the water accommodating portion; a cover plate, a fitting slot being formed in the cover plate, and the insertion portion being limited in the fitting slot; and a fastener, the fastener connecting the cover plate to the base in a fastening manner, and to form sealing faces, which are in close contact, between the insertion portion and the fitting slot. The base and the cover plate of the distributor are connected by means of the fastener. Under the fastening action of the fastener.

Abstract: Disclosed is a two-stage frequency selection method and device for microwave frequency sweep data. The method includes: acquiring microwave frequency sweep data; performing frequency selection on the microwave frequency sweep data by using a random forest-recursive feature elimination algorithm, taking a preset parameter in the random forest-recursive feature elimination algorithm as a hyper-parameter, changing the value of the hyper-parameter, and generating a series of candidate frequency subsets within different frequencies; building prediction models on the basis of the frequency sweep data corresponding to the candidate frequency subsets of different frequencies; evaluating the performance of each prediction model by means of 10 fold cross validation, and calculating evaluation index values of model performance; and taking the evaluation indexes as a voting basis, and selecting an optimal frequency subset by using a majority voting method.

Abstract: The present application relates to a method for extracting coenzyme Q10 and a phospholipid from a coenzyme Q10 fermentation bacterium powder. The method is characterized in that the fermentation bacterium powder of a coenzyme Q10 production strain is subjected to extraction with a mixed solvent of which the three-dimensional Hansen solubility parameter is between 21 and 23 (J/cm3)1/2 and the hydrogen bonding solubility parameter thereof is between 10 and 12 (J/cm3)1/2. The present invention can efficiently extract two products, namely coenzyme Q10 and a phospholipid, from the coenzyme Q10 fermentation bacterium powder; the process thereof is highly operable, easy to be industrialized, and can provide a product with high purity and yield, having great economic benefit.

Abstract: The present application relates to a method for extracting coenzyme Q10 and a phospholipid from a coenzyme Q10 fermentation bacterium powder. The method is characterized in that the fermentation bacterium powder of a coenzyme Q10 production strain is subjected to extraction with a mixed solvent of which the three-dimensional Hansen solubility parameter is between 21 and 23 (J/cm3)1/2 and the hydrogen bonding solubility parameter thereof is between 10 and 12 (J/cm3)1/2. The present invention can efficiently extract two products, namely coenzyme Q10 and a phospholipid, from the coenzyme Q10 fermentation bacterium powder; the process thereof is highly operable, easy to be industrialized, and can provide a product with high purity and yield, having great economic benefit.

Abstract: A pH-sensitive solid pharmaceutical composition for oral formulation and preparation method thereof is provided. The solid pharmaceutical composition contains a pharmaceutical active ingredient, a nano-matrix carrier and a pH-sensitive polymer material.

Abstract: Disclosed are nucleotide sequences, for example, DNA or RNA sequences, which encode an immunoglobulin Fc-Leptin fusion protein. The nucleotide sequences can be inserted into a suitable expression vector and expressed in mammalian cells. Also disclosed is a family of immunoglobulin Fc-Leptin fusion proteins that can be produced by expression of such nucleotide sequences. Also disclosed are methods using such nucleotide sequences and fusion proteins for treating conditions which are alleviated by the administration of leptin.