Abstract: Disclosed is a method for fermenting Gynostemma pentaphyllum with antihypertensive effect, the method comprising the following steps: 1) pretreatment of Gynostemma pentaphyllum: crushing Gynostemma pentaphyllum raw tea to prepare a homogenate; 2) activation of Tibetan Kefir: activating Tibetan Kefir in sterile milk; and 3) fermentation of Gynostemma pentaphyllum: taking the homogenate of Gynostemma pentaphyllum, the sterile milk and the activated Tibetan Kefir for fermentation.

Abstract: Disclosed is a data analysis-based intelligent deformation monitoring system for mountain landslides, which solves the technical problem in the prior art that when a landslide occurs in a landslide area, it is not possible to implement region-specific monitoring for landslide soil, thus failing to minimize the real-time impact of the landslide area. The present disclosure involves marking a sub-area where a landslide occurs as a landslide area, marking a real-time sliding direction within the landslide area as a landslide flow direction, setting areas at both sides of the landslide flow direction as landslide slopes, generating a control adjustment signal or a risk monitoring signal through landslide slope analysis, and sending the signal to a server.

Abstract: Disclosed is a method for fermenting Gynostemma pentaphyllum with antihypertensive effect, the method comprising the following steps: 1) pretreatment of Gynostemma pentaphyllum: crushing Gynostemma pentaphyllum raw tea to prepare a homogenate; 2) activation of Tibetan Kefir: activating Tibetan Kefir in sterile milk; and 3) fermentation of Gynostemma pentaphyllum: taking the homogenate of Gynostemma pentaphyllum, the sterile milk and the activated Tibetan Kefir for fermentation.

Abstract: A real-time landslide disaster monitoring and early warning system based on Beidou positioning comprises a data acquisition module, a signal transmission module and a remote early warning center, wherein the output end of the data acquisition module is connected with the input end of the signal transmission module, and the output end of the signal transmission module is connected with the input end of the remote early warning center; the data acquisition module comprises a fixed seat and a control box, the bottom of the control box is connected with a camera, one side of the control box is fixedly connected with a warning device and a displacement monitoring module, and the side, away from the warning device, of the control box is fixedly connected with a data connector; and the signal transmission module comprises a controller, a memory, a power supply, a Beidou positioning module and a signal projector.

Abstract: Disclosed is an air-ground integrated landslide monitoring method and device. The monitoring method comprises the following steps: step one, performing high-precision (centimeter-level) vertical aerial photogrammetry and oblique photogrammetry on a monitored area by using an unmanned aerial vehicle, and quickly generating a digital topographic map, a digital orthographic map and a digital surface model; step two, performing accurate and intensive monitoring on the monitored area through a monitoring device; and step three, finally sending obtained data to a processor, and after the monitoring data are processed by the processor, sending the data to a remote-control center, so that real-time transformation and spatialization of dynamic landslide monitoring information are achieved. The present disclosure also provides a landslide monitoring device. The landslide monitoring device comprises a control box, a bottom plate and an unmanned aerial vehicle.

Abstract: Disclosed is a Beidou communication-based integrated monitoring system for a slope surface crack, which in particular relates to the field of geological disaster monitoring. Due to a certain trend of landslide damage degrees, and consequent offsets of a slope area over time, monitoring points pre-arranged possibly become non-optimal monitoring points with undesired monitoring effects. In view of this, the present disclosure includes an arrangement module, a monitoring module, an early warning module and a supervision module; and a slope offset threshold is set according to information of a slope, and configured to determine whether positions of the monitoring points are located in a normal area, and under the condition that a slope offset exceeds the threshold, it is indicated that the monitoring points cannot properly monitor the slope area, and need to be rearranged according to an offset direction.

Abstract: Disclosed is an air-ground integrated landslide monitoring method and device. The monitoring method comprises the following steps: step one, performing high-precision (centimeter-level) vertical aerial photogrammetry and oblique photogrammetry on a monitored area by using an unmanned aerial vehicle, and quickly generating a digital topographic map, a digital orthographic map and a digital surface model; step two, performing accurate and intensive monitoring on the monitored area through a monitoring device; and step three, finally sending obtained data to a processor, and after the monitoring data are processed by the processor, sending the data to a remote-control center, so that real-time transformation and spatialization of dynamic landslide monitoring information are achieved. The present disclosure also provides a landslide monitoring device. The landslide monitoring device comprises a control box, a bottom plate and an unmanned aerial vehicle.

Abstract: Provided are a tripeptide compound, a preparation method therefor, and an application thereof. The structure of the related compound is represented by formula (I). The provided compound has angiotensin converting enzyme inhibiting bioactivity, and the compound and a pharmaceutical composition thereof play a role in preventing and treating hypertension and other cardiocerebral vascular system diseases.

Abstract: The present invention relates to a polyvinyl alcohol hydrogel having an asymmetric pore size. the pore size of the upper surface of the polyvinyl alcohol hydrogel is 1-30 ?m, the pore size of lower surface thereof is 50-300 ?m, and the pore size of the hydrogel gradually increases from the upper surface to the lower surface. The polyvinyl alcohol hydrogel in the present invention has excellent biocompatibility, and has functions of blocking bacteria, anti-adhesion, the absorption of exudate, promoting wound healing, observing in situ of wound healing process and the like.

Abstract: A supported transition metal carbide catalyst and a one-step synthesis method thereof are disclosed. The synthesis method includes: mixing a supporter, a transition metal precursor and a solid carbon source and then grinding to form a solid mixture; and putting the solid mixture into a reducing atmosphere, performing carbonization treatment and high-temperature programming thermal treatment in turn, and then at a protective atmosphere, cooling and passivating, so as to obtain the supported transition metal carbide catalyst. The synthesis method provided by the present application utilizes high-temperature solid solution reaction for further synthesis, which at least has the following advantages: the preparation process flow is simple so processes such as impregnation and carburization with gas carbon source can be avoided; different supporters used for catalyst modification, and the prepared catalyst has the characteristics of large outer surface area, rich notable metal-like catalytic property and the like.

Abstract: Use of isopropyl ?-(3,4-dihydroxyphenyl)-?-hydroxypropionate (IDHP) in the preparation of a drug or a health product for prevention and treatment of coronary atherosclerosis diseases. The IDHP can also be used to inhibit platelet aggregation, to promote angiogenesis, and to prepare a drug and a health product for prevention and treatment of senile vascular dementia.

Abstract: The present invention discloses a sample loading apparatus for laser ablation, including a target seat, a base, an air channel, an aerosol channel and a sample chamber, wherein a shrinking mouth is formed in the top of the sample chamber and positioned on a lower surface of the aerosol channel; a spring is arranged in the sample chamber; an opening is formed in a lower surface of the sample chamber and communicated with an air outlet; a stop valve is arranged at the air outlet; one end of the aerosol channel is communicated with a carrier gas inlet, and the other end is communicated with an aerosol outlet; and a top of the aerosol channel includes a first transparent material. The present invention increases stable reliability in a continuous use process, and improves consistency of aerosol transmission efficiency, so that different samples are analyzed.

Abstract: The present invention relates to ?-asary-laldehyde ester. The chemical structure of the related ?-asary-laldehyde ester is of formula I.

Abstract: The present invention relates to ?-asary-laldehyde ester, a preparation method therefor, and an application thereof. The chemical structure of the related ?-asary-laldehyde ester is represented by formula I. A related application is an application of the compound in preparation of drugs for calming, mind tranquillizing, senile dementia resisting, convulsion resisting, epilepsy resisting and depression resisting.

Abstract: A multidimensional liquid chromatography separation system has a mobile-phase storage tank, a first liquid transfer device, a second liquid transfer device, a first sample introduction device, a second sample introduction device, a separation device, a collection, storage device, at least two drainage devices and a flow path switching device. A separation method for protein separation using the multidimensional liquid chromatography separation system has the steps of: 1) preparation in advance, 2) the first dimensional separation, 3) collection and storage of the intermediate fraction, 4) the second dimensional or multidimensional separation and repeating the steps 3) and 4).

Abstract: The present invention relates to a compound of the formula (I), wherein R1, R2 and R3 are each independently selected from H, OH, F, Cl, Br, methoxy and ethoxy; or alternatively, R1 and R2 together form —OCH2O—, R3 is selected from H, OH, methoxy, ethoxy and halogens; R4 is OH or acyloxy; R5 is cycloalkoxyl, amino and substituted amino, and when R5 is selected from amino, at least one of R1, R2 and R3 is not H. The present invention further relates to a process for synthesizing a compound of the formula (I), and use of the compound of the formula (I) in the manufacture of a medicament for the prevention or treatment of cardiovascular or cerebrovascular diseases.

Abstract: The present invention relates to a compound of the formula (I), wherein R1, R2 and R3 are each independently selected from H, OH, F, Cl, Br, methoxy and ethoxy; or alternatively, R1 and R2 together form —OCH2O—, R3 is selected from H, OH, methoxy, ethoxy and halogens; R4 is OH or acyloxy; R5 is cycloalkoxyl, amino and substituted amino, and when R5 is selected from amino, at least one of R1, R2 and R3 is not H. The present invention further relates to a process for synthesizing a compound of the formula (I), and use of the compound of the formula (I) in the manufacture of a medicament for the prevention or treatment of cardiovascular or cerebrovascular diseases.

Abstract: The present invention discloses a new and improved kind of chromatographic cake and its manufacturing methods and applications. The objective of this invention is to provide an improved chromatographic apparatus and methods for manufacturing such an apparatus, whereby the separation and simultaneous renaturation and purification of biopolymers can be efficiently performed with excellent results. The chromatographic cakes of this invention generally comprise a chromatographic packing cake with a mobile phase inlet and a mobile phase outlet, together with a chromatographic packing packed into an inner cavity region of the chromatographic packing cake. The ratio of the thickness to the diameter of the inner cavity region of the chromatographic packing cake is less than or equal to 1.

Abstract: The present invention provides a class of semi-interpenetrating polymeric networks that include a linear polymer molecule functionalized with a bioactive moiety. The linear polymer is physically entangled within a matrix based upon a thermo-responsive polymer. The bioactive moiety is, e.g., a therapeutic moiety or a moiety that enhances the interaction of a cell with the polymer network. The polymer networks of the invention are flowable at room temperature, becoming solid or semi-solid at elevated temperatures (e.g., body temperature). The polymer networks are of use as drug delivery vehicles and as matrices for tissue engineering.