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Due to its excellent concealment and difficulty in deployment and removal, mines have become a recognized challenge for the world navy in MCM operation. Airborne blue-green Lidar technology is one of the new technologies in ocean exploration. Due to its smaller impact on shallow water environments compared to traditional mine detection payloads, it can be used as a new type of mine detection payload to compensate for the shortcomings of traditional detection methods in shallow water areas. With the development of unmanned equipment, unmanned aerial vehicles equipped with airborne blue-green Lidar for mine detection will become one of the new mine detection methods in MCM operation. By analyzing the current development status of airborne blue-green Lidar in MCM operation at home and abroad, combined with the detection and positioning principles of airborne blue-green Lidar, this paper summarizes the application characteristics and combat effectiveness of unmanned aerial vehicles carrying blue-green Lidar in MCM operation. Finally, the development trend of future airborne blue-green Lidar technology is analyzed and forecasted based on the requirements of MCM operation.

By analyzing the performance and main penetration technology of typical subsonic anti-ship missile of formidable enemy, this paper proposes a similarity analysis method based on the characteristic decomposition of threat target and constructs the similarity model of simulated threat aircraft. And the proposed method and model are used to evaluate the similarity of the target drones and analyze the difference between the target drones and the typical simulated objects. On this basis, this paper studies the current methods of building typical threat situation and analyzes the deficiency. According to the above results, this paper puts forward some thoughts on how to improve the ability to simulate the formidable enemy anti-ship missile target, how to improve the air defense and anti-missile training effect and how to build a systematic air blue force. These considerations provide the basis of the construction of the air threat situation for the firing range.

Starting from the basic principles of talent cultivation mode, this paper proposes a reform strategy to optimize the talent cultivation mode of environmental design with the help of intelligent technology in order to improve the quality of talent cultivation and achieve the “first-class” level for the current talent cultivation mode of environmental design majors. The necessity of an intelligent database in environmental design teaching is analyzed, and the improved TF-IDF algorithm and automatic classification algorithm of resources are proposed to improve the search for teaching resources for environmental design majors. Then, based on the query, the teaching resource recommendation model (UBM) is proposed. An algorithmic comparison between the improved TF-IDF method and the UBM model is carried out to verify the effectiveness of the improved algorithmic model. Combining the traditional talent training model results with the intelligent technology-assisted talent training model results for independent samples of the T-value test. T-value test results show that the F-value is 0.317, the Sig-value is 0.782>0.05, and the significance corresponding to the ANOVA t-test value is 0.009

Co-seismic displacements of the 2011 Mw9. 0 Japan earthquake recorded by GPS stations in China and surrounding areas showed a movement toward the epicenter. The horizontal displacements were up to 1 – 3 cm in northeastern China, 3 – 8 mm in the North China, and 2 cm in the Korean peninsula. The vertical movements in China were small uplifts.

Oncogenic histone lysine-to-methionine mutations block the methylation of their corresponding lysine residues on wild-type histones. One attractive model is that these mutations sequester histone methyltransferases, but genome-wide studies show that mutant histones and histone methyltransferases often do not colocalize. Using chromatin immunoprecipitation sequencing (ChIP-seq), here, we show that, in fission yeast, even though H3K9M-containing nucleosomes are broadly distributed across the genome, the histone H3K9 methyltransferase Clr4 is mainly sequestered at pericentric repeats. This selective sequestration of Clr4 depends not only on H3K9M but also on H3K14 ubiquitylation (H3K14ub), a modification deposited by a Clr4-associated E3 ubiquitin ligase complex. In vitro, H3K14ub synergizes with H3K9M to interact with Clr4 and potentiates the inhibitory effects of H3K9M on Clr4 enzymatic activity. Moreover, binding kinetics show that H3K14ub overcomes the Clr4 aversion to H3K9M and reduces its dissociation. The selective sequestration model reconciles previous discrepancies and demonstrates the importance of protein-interaction kinetics in regulating biological processes.

Organic electrochemical synthesis, a sustainable alternative to traditional organic synthesis, faces challenges in practical applications, such as limited current density, difficulty in recycling homogeneous electrochemical mediators, and large waste supporting electrolyte generation. In this work, we addressed these challenges by proposing a tandem electrochemical–chemical catalysis strategy, using selective alcohol electrooxidation to valuable aldehydes as a model transformation. Hypochlorite electro-generation and heterogeneous TEMPO-catalyzed alcohol oxidation were decoupled spatially, allowing each step to proceed independently under high rates and selectivity. Consequently, this strategy achieved industrially relevant current densities of 300–600 mA cm−2 with 64.7–81.8% faradaic efficiencies, resulting in a space–time yield (STY) of up to 516.95 kg (m3 h)−1 for benzaldehyde synthesis that significantly surpassed existing strategies. In addition, this strategy utilized the silica-supported TEMPO catalyst filled in a packed-bed reactor to achieve efficient single-pass conversion of alcohols to the corresponding aldehydes without the need for downstream catalyst separation, substantially reducing energy consumption for downstream separation. Furthermore, we developed a closed-loop tandem electrochemical–chemical catalysis system for gram-scale steroidal aldehyde synthesis, which incorporated an inline liquid–liquid separator for electrolyte recycling, thus significantly reducing the supporting electrolyte waste generation, which aligns with the principles of green chemistry and sustainable development. This work demonstrates a viable approach for the electrosynthesis of value-added organic intermediates under practical current densities with minimal waste electrolyte. [ABSTRACT FROM AUTHOR]

Steel slag is an industrial solid waste produced during the steelmaking process. To explore the application of steel slag in the agricultural field, the present experiment was carried out to study the effect of substrates with different contents of steel slag on the growth of Hydrangea macrophylla cuttings. The conventional substrate (perlite: vermiculite: peat = 1:1:1) was used as the control (CK), and the treatments were designed as T1 (steel slag: perlite: vermiculite: peat = 1:3:3:3, v/v/v/v), T2 (steel slag: perlite: vermiculite: peat = 1:2:2:2, v/v/v/v), T3 (steel slag: perlite: vermiculite: peat = 1:1:1:1, v/v/v/v), and T4 (steel slag: perlite: vermiculite: peat = 1:0:0:0, v/v/v/v). The results showed that the addition of steel slag significantly increased the substrate's bulk density, EC, and pH and improved its water retention capacity to a certain extent. There were significant differences among different treatments in morphological indicators, root growth and development, and physiological and biochemical characteristics of cutting seedlings. All traits, including plant height, fresh weight, dry weight, root length, root surface area, root volume, the number of root tips, root activity, and soluble protein content of seedlings grown in T3 were significantly higher than those in other substrates. The results indicated that the appropriate addition of steel slag is helpful to hydrangea cuttings' growth, and the optimal mixing ratio is steel slag: perlite: vermiculite: peat = 1:1:1:1 (v/v/v/v). This is a significant innovation in applying steel slag in agricultural production. [ABSTRACT FROM AUTHOR]

Aim: The study was aimed at exploring the current scope of hospital to home transitional care programmes for stroke survivors. Background: Stroke survivors face the dilemma of solving many complex problems that leave survivors at high risk for readmission as they discharge from hospital. The transitional care model has proved to be effective in reducing readmissions and mortality, thereby improving health outcomes and enhancing patient satisfaction for survivors with stroke. Design: A scoping review. Methods: Conducted in accordance with the Joanna Briggs Institute (JBI) Methodology for Scoping Reviews. Data Sources: A comprehensive search was conducted in nine databases, including PubMed, Web of Science, Cochrane Library, EMBASE, CINAHL, Medline, China Knowledge Net‐work, Wanfang Database and China Biomedical Literature Database (SinoMed) from January 2014 to June 2023. Results: Title and abstract screening was performed on 10,171 articles resulting in 287 articles for full‐text screening. Full‐text screening yielded 49 articles that met inclusion criteria. Conclusion: This study identified transitional care programmes for stroke survivors, as well as areas for future consideration to be explored in more depth to help improve transitional care for stroke survivors as they transition from hospital to home. Implications for the Profession and/or Patient Care: This study demonstrates that multidisciplinary collaboration becomes an integral part of the transitional care model for stroke survivors, which provides comprehensive and precise medical care to them. Reporting Method: PRISMA checklist for scoping reviews. Patient and Public Contribution: No patient or public contribution was part of this study. [ABSTRACT FROM AUTHOR]

To investigate the effect of steel slag used as substrate on the rooting of Hydrangea macrophylla cuttings, and to develop a new mixed substrate that can partially replace conventional cutting substrates and realize the high-efficient utilization of solid waste, we examined the physical and chemical properties of different mixed substrates containing 10% (T,), 20% ( T2), 30% (T3), and 40% (T4) volume fractions of steel slag, and investigated the rooting of H. macrophylla ' Red Beauty' cuttings growing on these substrates, with conventional cutting substrates (peat and perlite) as the control (CK). The results showed that pH value, electrical conductivity, and bulk density of the mixed substrates were significantly higher than those of CK. The aeration porosity of T2 was higher than other treatments, while the total porosity and water holding porosity differed little from others. Both fresh weight and dry weight of all the four treatments were higher than those of CK, with stem diameter being higher than that of CK ( except T4), plant height showing no significant difference compared to CK ( except T4), and leaf chlorophyll content being significantly lower than CK. Root length ranked as T2 >CK>T, >T3 >T4, the root surface area and root volume both ranked as T2>T, >CK>T4>T3, the root tip ranked as T2>CK>T, >T4>T3. Both average root diameter and root activity were significantly higher than that of CK, with the highest value being observed in T2. Soluble sugar content in the leaves of T2 was the highest, followed by T4, T3, CK, and T,. The weight ranking of root growth indices was root activity > average root diameter > root volume > root surface area > root tip number > root length. Redundancy analysis indicated that pH value, electrical conductivity, aeration porosity, and water holding porosity of substrates were key factors influencing root growth and development of cuttings. Our results suggested that substrates mixed with 10% to 40% steel slag could be used for H. macrophylla cutting propagation, and 20% ( T2) being the best one because it could significantly improve the survival rate, growth status, and root development of cuttings. Steel slag would be a novel substrate to partially replace conventional unrenewable substrates such as peat and perlite for flower seedling propagation, which could reduce agricultural production cost and provide a high-value utilization way of industry solid waste. [ABSTRACT FROM AUTHOR]