摘要：The majority of marine microbes remain uncultured,which hinders the identification and mining of CO_(2)-fixing genes,pathways,and chassis from the ***,we investigated CO_(2)-fixing microbes in seawater from the euphotic zone of the Yellow Sea of China by detecting and tracking their ^(13)C-bicarbonate(^(13)C-HCO_(3)^(-))intake via single-cell Raman spectra(SCRS)*** target cells were then isolated by Raman-activated Gravity-driven Encapsulation(RAGE),and their genomes were amplified and sequenced at one-cell *** single-cell metabolism,phenotype and genome are *** identified a notyet-cultured Pelagibacter spp.,which actively assimilates ^(13)C-HCO_(3)^(-),and also possesses most of the genes encoding enzymes of the Calvin-Benson cycle for CO_(2) fixation,a complete gene set for a rhodopsin-based light-harvesting system,and the full genes necessary for carotenoid *** four proteorhodopsin(PR)genes identified in the Pelagibacter *** confirmed by heterologous expression in *** results suggest that hitherto uncultured Pelagibacter *** light-powered metabolism to contribute to global carbon cycling.

摘要：提出基于模糊神经网络的智能型火灾报警系统,对系统的探测器、区域控制器、集中控制器进行了分析,并进行了抗干扰设计;分析表明,采用这一设计方法可大大提高船舶火灾报警系统的可靠性,减少误报率,提高系统的智能化程度。

摘要：深圳河湾流域的污染源数量及污染负荷大小,不易实测或其实测相对滞后,但该问题对整治深圳河湾流域水环境及相关工程的规模起决定作用。调查结果显示,深圳河湾流域有两个污染源,即未经处理而直接或间接漏入各河道的污水和污水厂尾水。深圳特区正在实施一系列的截污工程,对该流域污染负荷的预测数据则为截污工程的规划和实施奠定了基础。

摘要：从时代发展的趋势而言,大数据已然成为社会运行的重要科技力量,通过大数据实现高校思想政治教育的创新,对思政教育的实效性具有重要影响。高校应用大数据进行思想政治教育的意义在于:有利于进行个性化的思想政治教育、实时跟踪学生的思想动向和高校思想政治教育模式的全面更新。针对高校缺乏思想政治教育的大数据平台、缺乏智能性和针对性的大数据思想政治教育,提出了构建校园大数据平台、引进AI教学、开展大数据个性思政教育、提升教育者自身网络素养的创新路径。

摘要：通过检索、多重比对、分析和筛选GenBank中对虾白斑综合征病毒(WSSV)、传染性皮下和造血器官坏死病毒(IHHNV)、副溶血弧菌、创伤弧菌、哈维氏弧菌和溶藻胶弧菌的基因序列,设计了10对特异性引物,以已知毒株和菌株的DNA为模板进行PCR,均能扩增出与实验设计相符合的DNA片段,对PCR扩增条件进行优化,建立了可同时检测鉴别WSSV、IHHNV、副溶血弧菌、创伤弧菌、哈维氏弧菌和溶藻胶弧菌,并且能同时区分WSSV不同地理毒株的同步PCR方法。研究结果表明,该方法检测特异性好,检测通量大,适合于对虾多种病原的同时检测。

摘要：目的:优选最佳麸炒苍术炮制工艺。方法:以多指标综合分析,采用L9(34)正交试验设计法筛选麸炒苍术炮制工艺。结果:每100g苍术加麦麸30g,150℃时投药,炒制5min,翻炒频率70次/min为苍术麸炒最佳工艺。结论:验证试验表明最佳工艺切实可行,结果稳定。

摘要：Fe-Al金属间化合物具有密度低、比强度高、抗高温氧化和耐腐蚀性良好等优点,且成本低廉,成为镍基高温合金潜在的替代结构材料。综述了利用第一性原理计算研究元素掺杂/微合金化对Fe-Al金属间化合物及涂层的室温脆性、高温强度、界面结合、抗高温氧化及耐腐蚀性能影响的研究进展,设计了第一性原理研究B2型Fe-Al合金耐氯化盐腐蚀机理的理论计算方案,展望了第一性原理计算应用于Fe-Al合金及涂层材料研究的发展方向。

摘要：Exploring and designing a high-performance non-noble metal catalyst for hydrogen evolution reaction(HER)are crucial for the large-scale application of H2 by water ***,novel catalysts with NiMo nanoparticles decorated on reduced graphene oxide(NiMo@r GO)synthesized by a two-step hydrothermal method were *** characterization results showed that the prepared NiMo@r GO-1 had an irregular lamellar structure,and the NiMo nanoparticles were uniformly dispersed on the ***@rGO-1 exhibited outstanding HER performance in an alkaline environment and required only 93 and 180 mV overpotential for HER in 1.0 M KOH solution to obtain current densities of-10 and-50 mA·cm^(-2),*** tests showed that NiMo@rGO-1 had a certain operating stability for32 *** the same condition,the performance of NiMo@rGO-1 can be comparable with that of commercial Pt/C catalysts at high current *** synergistic effect between NiMo particles and lamellate graphene can remarkably promote charge transfer in electrocatalytic *** a result,NiMo@rGO-1 presented the advantages of high intrinsic activity,large specific surface area,and small electrical *** lamellar graphene played a role in dispersion to prevent the aggregation of *** prepared NiMo@rGO-1 can be used in anion exchange membrane water electrolysis to produce *** study provides a simple preparation method for efficient and low-cost water electrolysis to produce hydrogen in the future.

摘要：目前,强化学习在无人驾驶领域得到了广泛应用,但是如何提高无人车辆的稳定性并满足在不同工况中同时完成路径跟踪和车辆避障的要求依旧是一个难题。针对无人车辆路径跟踪与避障功能需求,提出一种基于深度确定梯度策略(Deep Deterministic Policy Gradient,DDPG)算法的无人车辆防碰撞控制策略。首先,根据DDPG算法原理和车辆控制模型得到控制系统的输入输出量,并提出一种基于sin函数的变道轨迹规划方式,来提高车辆避障能力。其次,根据控制系统输入输出量设计神经网络控制器以及研究其策略探索方案,并提出一种基于对数函数的奖励塑造方案,以解决奖励稀疏问题。最后,通过仿真实验证明,基于DDPG算法的无人车辆控制策略能够更加安全、稳定地控制车辆完成路径跟踪与避障任务,且控制精度更高。

摘要：针对高校本科“微生物学”实验教学中遇到的数据处理问题,以细菌生长曲线测定的实验为例,使用Origin 2022软件进行数据导入、数据计算、图形绘制及插入误差棒等操作,完成细菌生长曲线的绘制。结果表明,利用Origin软件可以快速对实验数据进行批量处理,操作简捷并可避免人工计算的误差,对实验得到的非线性数据通过软件可以拟合出美观的图形,将实验结果可视化。在教学中通过引入Origin软件,可以在讲授具体微生物知识的同时,让本科生掌握一款专业的数据分析处理软件,有助于培养本科生的数据处理能力,提高综合科研素养,为后续实验课程和科研工作的数据处理工作打好基础。