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In response to the issue of corrosion prevention in offshore wind farms，by collecting existing industry standards and specifications，combined with the characteristics of Chinese marine environment，a comparison and applicability analysis of relevant standards were conducted.The more applicable corrosion prevention standards for offshore wind farms were summarized and discussed from the following aspects: First，the current mainstream anti-corrosion technologies and their applications situation，including metal surface treatment and anticorrosive coatings，were examined；second，the characteristics of the operating environment of offshore wind power plants in coastal and ocean-going areas，as well as their differentiated needs on corrosion prevention technologies，were analyzed，and applicable corrosion prevention standards for different regions were put forward；third，the selection principles and performance evaluation indexes of anti-corrosion materials，including the assessment methods for the anti-corrosion performance of single materials and composite materials，were analyzed；fourth，the need to strengthen the performance evaluation of anti-corrosion materials and the formulation and updating of standards for ocean-going wind farms was emphasized.The research results were of great significance in promoting the sustainable development of offshore wind farms in China and improving the level of anti-corrosion protection technology.

Effects of contact glow discharge plasma on the germination of Alfalfa (Medicago sativa L.) seeds and treatment processing were investigated. Firstly, the influence of contact glow discharge plasma on the germination of Medicago sativa seeds was investigated under different times, voltages, and gas atmospheres. Then, on the basis of the single-factor experiment, the seed treatment process was optimized by response surface optimization design based on the indexes of seed germination rate and vigor index. The results showed that the germination rate of treated seeds reached 93%, the content of photosynthetic pigment and the intensity of photosynthesis in the leaves increased significantly, and the net photosynthetic rate increased by 98.4% under optimized conditions of 30 min, 540 V, and N2. All results indicate that contact glow discharge plasma can promote Alfalfa seed germination and growth, and improve seed physiological activity, thereby providing a theoretical basis for further research into new seed treatment technologies.

A Rh‐catalyzed asymmetric hydroboration of dialkyl ketone‐derived silyl enol ethers with HBpin has been developed using a commercially available catalyst and ligand ([RhCl (cod)]2 and MeO‐BIBOP). A variety of silyl enol ethers undergo this asymmetric transformation, providing the corresponding products with high enantioselectivity (up to 97 : 3 % er). In addition, the utility of this protocol is demonstrated by the versatile transformation of chiral borylether products to a range of valuable derivatives. [ABSTRACT FROM AUTHOR]

Background: Astragalus cicer L. is a perennial rhizomatous legume forage known for its quality, high biomass yield, and strong tolerance to saline-alkaline soils. Soil salinization is a widespread environmental pressure. To use A. cicer L. more scientifically and environmentally in agriculture and ecosystems, it is highly important to study the molecular response mechanism of A. cicer L. to salt stress. Results: In this study, we used RNA-seq technology and weighted gene coexpression network analysis (WGCNA) were performed. The results showed 4 key modules were closely related to the physiological response of A. cicer. L. to salt stress. The differentially expressed genes (DEGs) of key modules were mapped into the KEGG database, and found that the most abundant pathways were the plant hormone signal transduction pathway and carbon metabolism pathway. The potential regulatory networks of the cytokinin signal transduction pathway, the ethylene signal transduction pathway, and carbon metabolism related pathways were constructed according to the expression pathways of the DEGs. Seven hub genes in the key modules were selected and distributed among these pathways. They may involved in the positive regulation of cytokinin signaling and carbon metabolism in plant leaves, but limited the positive expression of ethylene signaling. Thus endowing the plant with salt tolerance in the early stage of salt stress. Conclusions: Based on the phenotypic and physiological responses of A. cicer L. to salt stress, this study constructed the gene coexpression network of potential regulation to salt stress in key modules, which provided a new reference for exploring the response mechanism of legumes to abiotic stress. [ABSTRACT FROM AUTHOR]

Controlling the optical activity of halide perovskite materials through modulation of the coordination configurations of the metal ions is important. Herein, a novel manganese‐based halide, specifically diaquatetrakis(methyldiphenylphosphine oxide)manganese(II) tetrachloridomanganate(II), [Mn(C13H13OP)4(H2O)2][MnCl4] or [Mn(MDPPO)4(H2O)2][MnCl4] (MDPPO is methyldiphenylphosphine oxide), was synthesized through the solvothermal reaction of MnCl2 with the neutral molecule MDPPO. In this compound, [Mn(MDPPO)4(H2O)2]2+ acts as the cation, while [MnCl4]2− serves as the anion, enabling the co‐existence of tetrahedral and octahedral structures within the same system. Remarkably, the compound exhibits efficient red‐light emission at 662 nm, distinct from the green‐light emission typically observed in MnX4‐based halides. Theoretical calculations show that the red emission comes from the charge transfer from the MDPPO to the Mn2+ of [MnCl4]2−. This work provides a new perspective for the design and synthesis of red‐light‐emitting manganese‐based halides with unique structures. [ABSTRACT FROM AUTHOR]

A new efficient method for the synthesis of a high ratio of E -alkenes from E / Z mixtures of alkenes with B2 pin2 in the presence of a rhodium catalyst is described. This reaction features mild reaction conditions, broad functional group tolerance, and highly great application potential. [ABSTRACT FROM AUTHOR]

Catalytic asymmetric hydroboration of alkenes is a powerful tool for the synthesis of natural products, agrochemicals, and pharmaceuticals via the versatile transformations of chiral alkyl boronic esters. However, the scope of available alkenes is limited to styrenes, activated alkenes, and compounds with directing groups. The catalytic enantioselective hydroboration of heteroatom-substituted alkenes is rarely explored and those catalyzed by earth-abundant metals are yet to be reported. Herein, we report a cobalt-catalyzed asymmetric hydroboration of ketone-derived silyl enol ethers and provide a convenient approach to access valuable enantiopure β-hydroxy boronic esters. This protocol features mild reaction conditions, a broad substrate scope, and excellent enantioselectivities (up to 99 % ee). This approach was applied in the successful synthesis of salmeterol and albuterol, demonstrating its potential to streamline complex molecule synthesis., (© 2022 Wiley-VCH GmbH.)