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Advanced Search Results For "Ren, Xiang"

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 "Ren, Xiang"
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AvmM catalyses macrocyclization through dehydration/Michael-type addition in alchivemycin A biosynthesis

Publication Type: Academic Journal

Source(s): Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)

Abstract: Macrocyclization is an important process in bioactive natural product synthesis. Here, the authors report on the study of a macrocyclic ring constructing enzyme in the biosynthesis of alchivemycin A and using gene deletion, biochemical assays and isoto...


Dynamic Responses Law of Subgrade of a Special Railway Line in Loess Region

Publication Type: Academic Journal

Source(s): Shanghai Jiaotong Daxue xuebao, Vol 56, Iss 7, Pp 908-918 (2022)

Abstract: In order to investigate the dynamic response law of subgrade of a special railway line in loess region under moving train loading, the field test data and 2.5D finite element results were adopted to assess the dynamic stress distribution and its influe...

Factors influencing the horizontal inter-well interference in tight gas reservoirs

Publication Type: Academic Journal

Source(s): Natural Gas Industry B, Vol 9, Iss 3, Pp 308-317 (2022)

Abstract: With the continuous shortening of horizontal well clusters and the increase in the single-stage fracturing scale, the inter-well interference phenomenon has increased. Moderate inter-well interference can improve single-well production, but excessive i...

Calculation Method of Bearing Capacity of Screw Pile Based on Unified Strength Theory

Publication Type: Academic Journal

Source(s): Shanghai Jiaotong Daxue xuebao, Vol 56, Iss 6, Pp 754-763 (2022)

Abstract: Based on the unified strength theory and the Terzaghi limit equilibrium theory, the ultimate bearing capacity of screw pile has been deduced. The method to determine the critical pitch and calculate the ultimate bearing capacity of the screw pile in tw...

Carbon-nitrogen bond formation to construct novel polyketide-indole hybrids from the indole-3-carbinol exposed culture of Daldinia eschscholzii

Publication Type: Academic Journal

Source(s): Synthetic and Systems Biotechnology, Vol 7, Iss 2, Pp 750-755 (2022)

Abstract: A plenty of cytochrome P450s have been annotated in the Daldinia eschosholzii genome. Inspired by the fact that some P450s have been reported to catalyze the carbon-nitrogen (C–N) bond formation, we were curious about whether hybrids through C–N bond f...

Shock Boundary Layer Interaction and Aero-Optical Effects in a Transonic Flow over Hemisphere-on-Cylinder Turrets.

Publication Type: Academic Journal

Source(s): International Journal of Aerospace Engineering. 11/17/2022, p1-19. 19p.

Abstract: Hemisphere-on-cylinder turrets are the main airborne optical platform structure. However, an unsteady shock boundary layer interaction (SBLI) would act on flow separation and turbulent wake, which causes serious aero-optical effects with high spatial a...

GO enhanced visible-light response of g-C3N4 aerogel and degradation of unsymmetrical dimethylhydrazine in wastewater

Publication Type: Academic Journal

Source(s): Cailiao gongcheng, Vol 49, Iss 11, Pp 171-178 (2021)

Abstract: A series of GO/g-C3N4 aerogel materials were prepared by the methods of ultrasonic peeling, solution cross-linking and freeze-drying, and the proportion of raw materials were optimized. The materials were characterized by SEM, XRD, and UV-vis absorptio...

Studies on Analysis Conditions of Specific Surface Area of Polymetallic Nodules

Publication Type: Academic Journal

Source(s): Yankuang ceshi, Vol 40, Iss 3, Pp 435-443 (2021)

Abstract: BACKGROUND Polymetallic nodules are predominant in deep sea sedimentary mineral resources due to the enrichment of many critical metals. Polymetallic nodules are loose and porous, which is the critical material feature that contributes the adsorption o...

Total Biosynthesis of Mutaxanthene Unveils a Flavoprotein Monooxygenase Catalyzing Xanthene Ring Formation.

Publication Type: Academic Journal

Source(s): Angewandte Chemie; 3/20/2023, Vol. 135 Issue 13, p1-8, 8p

Abstract: Copyright of Angewandte Chemie is the property of John Wiley & Sons, Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, downlo...

A [6+4]-cycloaddition adduct is the biosynthetic intermediate in streptoseomycin biosynthesis

Publication Type: Academic Journal

Source(s): Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)

Abstract: Streptoseomycin is a potent antibiotic that contains a pentacyclic 5/14/10/6/6 ring system. Here, the authors report the enzymatic and non-enzymatic steps of the downstream modification of streptoseomycin biosynthesis and show a [6 + 4]-cycloaddition a...