62results about How to "Increase structural diversity" patented technology

The invention discloses a strain of bacillus cereus which is preserved in China General Microbiology Center of Committee for Culture Collection of Microorganisms since 31st December, 2014, and the preservation number is CGMCC No. 7069. The bacillus cereus L90 provided by the invention is capable of improving the drought resistant capability of juglans regia. Experiment research shows that after the bacillus cereus provided by the invention is inoculated to the surround of juglans regia roots and juglans regia is stressed by drought for a certain time, juglans regia is substantially improved in bacterial community structure diversity in rhizosphere soil compared with juglans regia inoculated with common growth-promoting bacteria, the leaf relative water content and the water utilization efficiency are improved, and the drought resistance of the plant is enhanced. Therefore, the bacillus cereus provided by the invention or a bacterium preparation by taking bacillus cereus as a raw material can be used as an inoculation agent and applied to drought environment, and the bacillus cereus provided by the invention helps to provides an excellent bacterial strain resource for improving the drought resistance of juglans regia.

The invention discloses a horizontal joint connecting node of an assembled prefabricated structure wallboard unit. The horizontal joint connecting node is characterized by comprising an upper end combination surface of a prefabricated structure wallboard unit under a floor, a lower end combination surface of the prefabricated structure wallboard unit on a floor and an end combination surface of aprefabricated horizontal component, which are connected with each other, a conventional rib arranged in a horizontal groove, and an upper end combination surface reserved connecting reinforcement of the prefabricated structure wallboard unit under the floor, a lower end combination surface reserved connecting reinforcement of the prefabricated structure wallboard unit on the floor and a reserved connecting reinforcement of the prefabricated horizontal component, which are connected with each other, and post-cast concrete cast in the horizontal groove; and the post-cast concrete of the horizontal joint connecting node is leveled with or under a floor structure surface. The horizontal joint connecting node has such advantages as convenient scene construction, safety, reliability and the sameperformance of cast-in-place structures, and realizes structural design principles of strong nodes and weak components.

The invention discloses an alkenyl amide triazole compound and a synthetic method thereof. The compound has the following structural formula (see the formula in the description). According to the synthetic method, alkyl or aryl azide, various kinds of amine and various substituted 5-halogeno-2-furfuryl alcohol compounds are used as starting raw materials, and a 1,2,3-triazole and alkenyl amide conjugated skeleton structure of (Z)-configuration is generated through a [3+2]-cycloaddition, furan ring opening and amidating series reaction accelerated by lewis acid. The synthetic method is easy to operate, the used reagent is the low-cost lewis acid, the substrate is wide in application range and capable of being used for synthesizing a series of complex alkenyl amide triazole compounds substituted by functional groups highly, and step economy, product structural diversity and (Z)-configuration stereospecificity are high.

The invention relates to methods for preparing a compound comprising a peptide attached to a molecular scaffold whereby multiple peptide loops are formed, to compounds that can be obtained with such methods and uses thereof.

The invention relates to a method for producing the tetrahydropyran derivatives of formula (I), characterized by subjecting a tetrahydropyran derivative of formula (II) to a reductive elimination of substituent X<1>, wherein X<1> represents chlorine, bromine or iodine. The remaining substituents are defined in the claims.

The invention discloses a preparation method of biomacromolecules modified by linking chemical molecules disclosed as Formula I or Formula II by a one-pot process, which comprises the following steps: dissolving compounds disclosed as Formula A or Formula B in a solvent, and directly reacting in the presence of an alkali and a ligand by using an azide transfer reagent and a copper catalyst in a buffer solution with the pH value of 4.0-11.0 to generate the compounds disclosed as Formula I or Formula II, wherein R1 and R2 are respectively and independently selected from biomacromolecules or chemical micromolecules, and biomacromolecules or chemical small molecules when being different. The novel method for chemically modifying biomacromolecules has the advantages of simple process route and mild reaction conditions. By adopting imidazolyl sulfonyl azide hydrochloride or trimethyl silyl azide as the azide transfer reagent, the method has high operational safety, does not need to separate or purify the intermediate product, saves the procedures, lowers the operation difficulty, can be used for preparing biomacromolecules with different chemical modifications, and is very suitable for industrial application.