摘要：随着时代的发展,人们对于建筑功能性和观赏性的需求进一步提高,开合屋盖作为一种新型建筑结构得到了一定的发展,但目前国际上对其并没有形成统一的规范。论文从机械方面结合实例,详细介绍了开合屋盖结构,并对开合屋盖机械系统进行分析。

摘要：针对热噪声试验中石英灯加热器的快速迭代设计和优化的需求,本文简化了行波管模型和噪声气流的模拟方法,基于蒙特卡罗法和热网格方法建立了热噪声试验系统中圆锥形薄壁结构件的热分析模型,获得了圆锥形薄壁结构件在石英灯加热器辐射下的温度分布,并通过与试验数据的对比分析,验证了计算模型的有效性。本文使用的建模方法和热分析模型可用于热噪声试验中类似结构的温度均匀性评估,为石英灯加热器设计和优化提供支撑。

摘要：目的:设计基于STM32单片机的三维水箱无线调节系统,提高放射物理检定工作的效率。方法:结合传统三维水箱调节控制系统,设计基于STM32F103单片机和ZigBee技术三维水箱无线调节系统,评价其性能测试指标。结果:系统可以实现远程控制驱动电机运行,探测器沿水箱x轴、y轴和z轴定位准确度误差200 mm时误差<1.0 mm。结论:基于STM32的三维水箱无线调节系统能够提高射线束测量检定的信息化和智能化水平,符合放射物理测量工作的需求,为核医学设备计量检定提供技术支撑。

摘要：In order to discover potential ryanodine receptor insecticides, 21 novel anthranilic diamides analogues (C, D, E, and F) containing amide, carbamate, urea, and thiourea moieties were designed and synthesized based on bioisosteric approach. The biological assays against oriental armyworm (Mythimna separata) and diamondback moth (Plutella xylostella) indicated that these compounds displayed moderate to excellent activities. Especially, compound D1 showed 100% larvicidal activities against oriental armyworm at 1.0 mg•L−1, equivalent to the standard chlorantraniliprole (100%, 1.0 mg•L−1). Moreover, the larvicidal activity of D1 against diamondback moth was 100% at 0.1 mg•L−1, more effective than that of chlorantraniliprole (90%, 0.1 mg•L−1). Therefore, D1 can be used as a new lead structure for the development of insecticidal agents. The preliminary structure-activity relationship showed that the introduction od carbamate groups into 4-position on the benzene ring of the N-phenylpyrazole moiety has a positive effect on the larvicidal activities.

摘要：Pre-configured cycles （p-cycles） can attain high capacity efficiency and fast protection switching times in wavelength division multiplexing （WDM） networks. This article proposes the weighted straddling link algorithm（WSLA） for generating a subset of all cycles that can guarantee 100% restorability in case of dual link failure, and give an integer linear programming（1LP） formulation that solves the shared p-cycles design problem minimizing the total spare capacities. Numerical result shows that our method can achieve 100% dual link failure restorability with acceptable spare capacity. The larger standard deviation of demand set and the larger node degree network, the better the shared p-cycles scheme performs.

摘要：A series of novel 4,5-disubstituted-3-S-（β-D-acetylglycosyl）-l,2,4-triazole derivatives was designed and synthesized via the strategy of introducing S-β-D-acetylglycosyl fragments into 1,2,4-triazole ring. The structures of 17 target compounds were characterized by means of lH NMR, 13C NMR and high-resolution mass spectrometer （HRMS）. The results of insecticidal activity indicated that compound 5a displayed 60% lethality rate at 100 mg/L concentration. More importantly, the introduction of the carbohydrate fragment to the 1,2,4-triazole core could im- prove the insecticidal activities since the insecticidal activities of compounds 5 were better than those of compounds 4 and this result was also supported by calcium imaging technique. The antifungal activity of the target compounds showed that some novel compounds displayed moderate to good inhibition rate against Sclerotinia sclerotiorum and Botrytis cinerea, in which compound 5p exhibited 78.8% inhibition rate against Sclerotinia sclerotiorum and 68.6% inhibition rate against Botrytis cinerea. The herbicidal activities of compounds 5 against Brassica campestris indi- cated that most of the target compounds showed moderate to good activities, especially compound 5g which showed 52.9% herbicidal activity at the concentration of 200 mg/L.

摘要：介绍了自行研制的物位测量,控制教学实验系统,该系统主要用于过程控制课实践教学。利用该系统学生能综合运用所学知识,全面掌握物位系统控制技术的特点,对过程控制系统有深入的理解。文章阐述了系统的设计及特点,并介绍了基于此系统可进行的实验。

摘要：Semiconductor technology continues advancing, while global on-chip interconnects do not scale with the same pace as transistors, which has become the major bottleneck for performance and integration of future giga-scale ICs. Thre dimensional （3D） integration has been proposed to sustain Moore＇s law by incorporating through-silicon vias （TSVs） to integrate different circuit modules in the vertical direction, which is believed to be one of the most promising techniques to tackle the interconnect scaling problem. Due to its unique characteristics, there are many research opportunities, and in this paper we focus on the test wrapper optimization for the individual circuit-partitioned embedded cores within 3D System-on- Chips （SoCs）. Firstly, we use existing 2D SoCs algorithms to minimize test time for individual embedded cores. In addition, vertical interconnects, i.e., TSVs that are used to construct the test wrapper should be taken into consideration as well. This is because TSVs typically employ bonding pads to tackle the misalignment problem, and they will occupy significant planar chip area, which may result in routing congestion. In this paper, we propose a series of heuristic algorithms to reduce the number of TSVs used in test wrapper chain construction without affecting test time negatively. It is composed of two steps, i.e., scan chain allocation and functional input/output insertion, both of which can reduce TSV count significantly. Through extensive experimental evaluations, it is shown that reduce the number of test TSVs dramatically, i.e., as much as 26% in comparison with the intuitive method. the test wrapper chain structure designed by our method can 60.5% reductions in comparison with the random method and

摘要：时态知识图谱补全(Temporal Knowledge Graph Completion,TKGC)旨在依据已有的知识图谱,补全时态知识四元组中缺失的部分,其可以提高下游应用的性能,比如推荐系统、信息检索等。然而,目前的时态知识图谱补全方法主要针对实体补全或关系补全,忽略了时态知识图谱中重要的时间元素。这导致它们未能有效地同时解决实体补全、关系补全和时间戳补全的问题,从而限制了自然语言处理系统对于时态信息的准确理解和处理能力。为了解决此问题,提出了一种基于时间正交变换矩阵的时态知识图谱补全方法(Orthogonal Transformation Matrix-based TKGC,OTM)。具体来说,该模型包括两个阶段:时态实体关系嵌入以及评分函数。首先,第一阶段引入时间正交变换矩阵,利用正交矩阵的保范性学习时态感知的实体表示和关系表示。然后,第二阶段设计评分函数以评估时态知识四元组的合理性,并设计损失函数更新实体、关系和时间戳的向量表示。在广泛使用的YAGO和Wikidata数据集上进行了实体补全、关系补全和时间补全实验。实验结果表明了该模型在时态知识图谱补全的可行性和有效性。

摘要：生态产品价值实现逻辑严密,分析相关要素之间的作用关系,提出生态产品价值实现的要素协同、产出牵引、主导转化和循环反馈4个运作机理。通过长江经济带沿江省份实施长江大保护5个方面的案例,反映长江大保护生态产品价值实现路径具有普适性,但在创新组织方式实现政企合作共治、创新技术扩散协同减污降碳、创新市场交易提升资源溢价、创新利益平衡实现优势互补、创新区域一体促进导向转化等方面存在差异。相较直接产品转化、市场交易转化和关联产业转化,长江大保护生态产品价值实现路径范围更大、领域更宽、层次更高、过程更细,结合案例可以总结为4条差异化路径:扩大资源配置实现系统增效、科技创新应用促进价值创造、倡导公益属性助推效益均衡、拓宽领域融合增进产业协同。进一步提出要完善支持生态产品价值实现的政策制度顶层设计、因地制宜拓宽地方生态产品价值实现的渠道方式、广泛开展生态产品价值实现模式探索和技术创新等3条建议。