7results about How to "Consistent stability" patented technology

The invention discloses a reference gene related to regulation and control of stress-resistant gene expression of arabidopsis thaliana and application of the reference gene, and relates to the technical field of genetic engineering, the reference gene is LHCB5 and / or LHCB4.1, the nucleotide sequence of the LHCB5 is shown as SEQ ID NO.1, and the nucleotide sequence of the LHCB4.1 is shown as SEQ ID NO.2. The invention further discloses a preparation method of the reference gene related to the regulation and control of stress-resistant gene expression of arabidopsis thaliana and application of the reference gene related to the regulation and control of stress-resistant gene expression of arabidopsis thaliana. Various analysis methods are used for analyzing and finding that reference genes LHCB5 and LHCB4.1 show consistent stability under the high-temperature stress condition of arabidopsis thaliana, and when the LHCB5 and the LHCB4.1 are independently used as reference genes and the combination of the LHCB5 and the LHCB4.1 is used as the reference genes for relative quantification, the relative expression quantity of the HSFA2 gene under the high-temperature stress condition is increased and has a consistent trend; it is verified that both the LHCB5 and the LHCB4.1 and the combination of the LHCB5 and the LHCB4.1 can be used as reference genes for qPCR analysis of the arabidopsis thaliana under high temperature stress, a reliable reference standard is provided for gene expression research of the arabidopsis thaliana under high temperature stress in the future, and the accuracy and comparability of experimental data can be improved.

The application relates to the technical field of metal corrosion prevention, and particularly discloses a high-corrosion-resistance zinc-aluminum-magnesium alloy plated plate and a continuous hot plating process. The zinc-aluminum-magnesium alloy plated layer comprises the following components in percentage by mass: Al: 1.8-2.5 wt%, Mg: 1.0-2.0 wt%, B: 0.001-0.005 wt%, Sn: 0.03-0.08 wt%, and the rest is Zn. The preparation method comprises the following steps: S1, pre-oxidation treatment: performing controlled pre-oxidation treatment on a cold-rolled steel plate after reduction annealing to obtain an oxidized base plate; S2, incomplete reduction treatment; S3, plating solution preparation and melting; S4, hot dipping and plating layer adhesion; and S5, low-temperature temperature control and cooling winding. The plate can be used for outdoor high-humidity environment components such as buildings, automobiles and household appliances, and has the advantages of simultaneously improving notch corrosion resistance, plane corrosion resistance and bending adhesion.

This invention discloses a center of gravity control system, an excavator, and a method for controlling the center of gravity of the excavator. The center of gravity control system includes a turntable, a center of gravity detector, a servo motor pump, a counterweight mechanism, and a controller. The controller is connected to both the center of gravity detector and the servo motor pump, receiving center of gravity position signals from the detector and controlling the servo motor pump to steer, causing liquid in the first and / or second liquid counterweight tanks to flow towards the solid-liquid mixture counterweight tank, or vice versa. The center of gravity control system provided by this invention has a simple structure and is easy to operate. The center of gravity control method enables manual and automatic adjustment of the machine's center of gravity, effectively improving the stability of the entire machine and enabling the excavator to adapt to multiple working conditions and perform multiple functions.

The invention discloses a vacuum gauge, and the vacuum gauge comprises a first housing which is provided with a first accommodation cavity; the second shell is located in the first containing cavity, the second shell is provided with a second containing cavity, and a third containing cavity is formed between the second shell and the first shell; the gas pressure detection assembly is positioned in the second accommodating cavity; the first end of the interface assembly is located outside the first shell, the second end of the interface assembly is located in the second shell, the interface assembly is used for transmitting process gas to the vacuum gauge, the second end of the interface assembly is provided with a first cut-off assembly, and the side wall of the interface assembly is provided with at least one first through hole; and the first through hole is communicated with the third accommodating cavity. According to the vacuum gauge, the process gas is used for heating the gas pressure detection assembly, and the measurement precision during gas pressure detection is improved.

The utility model discloses a kind of feathered frame A of badminton, including feathering rod (A2), combination part (4), base (1), feathering rod, combination part, base are by one whole of one-time forming of mould composition, every root of feathering rod (A2) is single independent. The height of feathering rod A2 is 7mm-14mm. The utility model also discloses a kind of feathered frame B of badminton, including feathering rod (B2), combination part (4), base (1), feathering rod, combination part, base are by one whole of one-time forming of mould composition, every root of feathering rod (B2) is single independent. The height of feathering rod B2 is 20mm-24mm. Feathered frame A, feathered frame B can make middle and high grade feather piece with low grade feather and natural defective feather, then make badminton with middle and high grade feather piece.

The present disclosure provides an siRNA for inhibiting the expression of angiopoietin-like protein 3 gene, a pharmaceutical composition and conjugate containing the siRNA. Each nucleotide in the siRNA is independently a modified or unmodified nucleotide, the siRNA contains a sense strand and an antisense strand, the sense strand contains a nucleotide sequence I, the nucleotide sequence I is equal in length to the nucleotide sequence shown in SEQ ID NO: 1, and differs by no more than 3 nucleotides, and the antisense strand contains a nucleotide sequence II, the nucleotide sequence II is equal in length to the nucleotide sequence shown in SEQ ID NO: 2, and differs by no more than 3 nucleotides. The siRNA, and the pharmaceutical composition and conjugate thereof provided by the present disclosure can effectively treat and / or prevent dyslipidemia.

The utility model provides an aluminum pipe connecting structure, which belongs to the field of environment detection and comprises a plurality of bundled aluminum pipes. A binding structure; the binding structure comprises a binding belt wound outside the multiple aluminum pipes, the two ends of the binding belt abut against each other, L-shaped connecting blocks are fixed to the two ends of the binding belt, and the two L-shaped connecting blocks are locked and connected together through two fixedly-connected L-shaped locking blocks, so that the binding belt binds the multiple aluminum pipes together in an annular shape. The limiting mechanism is used for connecting the L-shaped locking block and the L-shaped connecting block together, the limiting mechanism comprises a plurality of spherical grooves formed in the L-shaped connecting block in a stamping mode, and a protrusion is formed on the connecting piece in a stamping mode. According to the aluminum pipe binding device, the aluminum pipe is wrapped with the binding belt, the two L-shaped connecting blocks abut against each other, the connecting piece and the L-shaped locking block are arranged between the two L-shaped connecting blocks in a sleeved mode, binding of the aluminum pipe is completed, operation is easy and fast, and it can be guaranteed that stability and binding tightness are consistent.