Abstract: A brazing joint, a brazing method, and a device for promoting solder rheology and gas overflow are provided. The brazing joint includes a first base metal, a second base metal, and a brazing seam located therebetween. The brazing seam is formed by filling a solder in a gap formed by welding surfaces of the first and the second base metal and melting it to connect the first and the second base metal. The brazing seam is a concave-shaped brazing seam. The gap defines a first distance and a second distance, the first distance is located at an edge of the gap, the second distance is located at the edge or an inside of the gap, the first distance is greater than the second distance, and a curved surface is formed between the location of the first distance and the location of the second distance for transition.

Abstract: The invention discloses a lubricating grease with thixotropy and a preparation method thereof. The lubricating grease comprises a polyurea/high base number calcium sulfonate composite thickener, colloidally dispersed calcium carbonate solid particles in the form of calcite, a calcium borate or calcium borate composite, and a calcium soap of fatty acid having 12 to 24 carbon atoms. The above components are uniformly dispersed in an oil phase medium. The content of high base number calcium sulfonate in the lubricating grease is less than 22 wt %.

Abstract: The present disclosure belongs to the technical field of biological control and prevention, and it was found that Pseudomonasnitroreducens strain HS-18 has good degradation activity on AHLs with C4-C14 chain length, with an efficient and notable degradation effect, providing a new biocontrol agent for prevention and treatment of AHLs-mediated pathogens provides and broadening the quorum quenching species of AHL signaling molecules. By using molecular biology technologies, AHL-quenching genes for HS-18, i.e., the encoding genes aigA and aigC of N-acyl homoserine lactone acyl transferase are cloned. The genes aigA and aigC have broad-spectrum and efficient quenching activities on AHLs with different side chain lengths and different side chain substituents. The expression of aigA and aicC can significantly weaken the motility of AHL-mediated pathogens, the formation of biofilm and the production of virulence factors and significantly weaken the pathogenicity of pathogens to the host plant.

Abstract: The invention discloses a lubricating grease with thixotropy and a preparation method thereof. The lubricating grease comprises a polyurea/high base number calcium sulfonate composite thickener, colloidally dispersed calcium carbonate solid particles in the form of calcite, a calcium borate or calcium borate composite, and a calcium soap of fatty acid having 12 to 24 carbon atoms. The above components are uniformly dispersed in an oil phase medium. The content of high base number calcium sulfonate in the lubricating grease is less than 22 wt %.

Abstract: The invention discloses a lubricating grease with thixotropy and a preparation method thereof. The lubricating grease comprises a polyurea/high base number calcium sulfonate composite thickener, colloidally dispersed calcium carbonate solid particles in the form of calcite, a calcium borate or calcium borate composite, and a calcium soap of fatty acid having 12 to 24 carbon atoms. The above components are uniformly dispersed in an oil phase medium. The content of high base number calcium sulfonate in the lubricating grease is less than 22 wt %, and the lubricating grease has a worked cone penetration of 295 or less.

Abstract: The invention discloses a lubricating grease with thixotropy and a preparation method thereof. The lubricating grease comprises a polyurea/high base number calcium sulfonate composite thickener, colloidally dispersed calcium carbonate solid particles in the form of calcite, a calcium borate or calcium borate composite, and a calcium soap of fatty acid having 12 to 24 carbon atoms. The above components are uniformly dispersed in an oil phase medium. The content of high base number calcium sulfonate in the lubricating grease is less than 22 wt %, and the lubricating grease has a worked cone penetration of 295 or less.

Abstract: The present invention relates to novel antimicrobial compounds, methods of their production as well as uses thereof.

Abstract: The present invention relates to novel antimicrobial compounds, methods of their production as well as uses thereof.

Abstract: The present invention relates to a composition comprising: an antibiotic selected from the group consisting of an aminoglycoside antibiotic, a beta-lactam antibiotic, an ansamycin antibiotic, a macrolide antibiotic, a sulfonamide antibiotic, a quinolone antibiotic, an oxazolidinone antibiotic, a glycopeptide antibiotic, and a mixture thereof; and a fatty acid represented by formula (I), a stereoisomer, a salt or an ester thereof, wherein R1 is a substituted or unsubstituted aliphatic group.

Abstract: The present invention relates to novel antimicrobial compounds, methods of their production as well as uses thereof.

Abstract: The present invention relates to novel polyamino polyketide antibiotics, methods of their production as well as methods of using these antibiotics, for example, for inhibition or removal of biofilm formation or for treating bacterial infection with these antibiotics.

Abstract: The present invention relates to novel antimicrobial compounds, methods of their production as well as uses thereof.

Abstract: The present invention relates to novel polyamino polyketide antibiotics, methods of their production as well as methods of using these antibiotics, for example, for inhibition or removal of biofilm formation or for treating bacterial infection with these antibiotics.

Abstract: The present invention relates to isolated nucleic acid molecules encoding an autoinducer inactivation protein, wherein the encoded protein comprises an amino acid sequence selected from the group consisting of 104HXHXDH109˜60aa˜H169˜21aa˜D191 and 103HXHXDH108˜72aa˜H180˜21aa˜D202, and to expression vectors and transformed plant and animal cells comprising the same. The proteins encoded by these nucleic acid molecules provide to a susceptible plant or animal increased resistance to a disease the virulence of which is regulated by autoinducers. Also provided are methods of increasing disease resistance in susceptible plants and animals.

Abstract: The present invention relates to isolated nucleic acid molecules encoding an autoinducer inactivation protein, wherein the encoded protein comprises an amino acid sequence selected from the group consisting of 104HXHXDH109˜60aa˜H169˜21aa˜D191 and 103HXHXDH108˜72aa˜H180˜21aa˜D202, and to expression vectors and transformed plant and animal cells comprising the same. The proteins encoded by these nucleic acid molecules provide to a susceptible plant or animal increased resistance to a disease the virulence of which is regulated by autoinducers. Also provided are methods of increasing disease resistance in susceptible plants and animals.

Abstract: The present invention relates to isolated nucleic acid molecules encoding an autoinducer inactivation protein, wherein the encoded protein comprises an amino acid sequence selected from the group consisting of 104HXHXDH109˜60aa˜H169˜21aa˜D191 and 103HXHXDH108˜72aa˜H180˜21aa˜D202, and to expression vectors and transformed plant and animal cells comprising the same. The proteins encoded by these nucleic acid molecules provide to a susceptible plant or animal increased resistance to a disease the virulence of which is regulated by autoinducers. Also provided are methods of increasing disease resistance in susceptible plants and animals.

Abstract: Transgenic plants having resistance against bacterial soft rot diseases, harboring the bacterial autoinducer inactivation gene encoding (AiiA) protein, and methods for protecting plants from bacterial pathogens by transforming the plants with the aiiA gene are disclosed.

Abstract: Transgenic plants, protected from bacterial pathogens, which harbor the aiiA gene or a functional fragment or a modification thereof and express functional AiiA protein were produced. The plants and plant materials of this invention inactivate bacterial pathogen quorum-sensing signal molecules, thereby eliminating or reducing the production of bacterial virulence factors which are harmful to plant cells and tissues.

Abstract: A method of substantially reducing or inhibiting the development of leaf scald disease in a plant or stalk thereof, said method comprising the step of administering an albicidin detoxification enzyme to the plant or stalk thereof. There is also provided a method of generating a transgenic plant substantially resistant to albicidin and leaf scald disease including the steps of introducing and expressing a nucleotide sequence encoding albicidin detoxification enzyme into a plant, plant part or plant cell, and growing the plant, plant part or plant cell to generate the transgenic plant. There is further provided a method of substantially reducing or inhibiting the development of leaf scald disease in a plant or stalk thereof, said method comprising the step of administering to the plant or stalk thereof a bacterium which extracellularly produces albicidin detoxification enzyme.