高稳定高能量被动调Q激光

在普通被动调Q激光器中引入抗共振环（ARR）结构。以Cr^4 :YAG晶体、BDN染料片和LiF:F2^-色心晶体作为可饱和吸收体，采用平面-ARR介稳腔和凸-ARR非稳腔，得到了输出能量大于80mJ、超伏小于1.5％的高稳定大能量调Q单脉冲输出。利用ARR的光栅效应和饱和吸收的机理很好地解释了实验结果。     

Enhancing TRU burning and Am transmutation in Advanced Recycling Reactor

This paper presents about conceptual designs of Advanced Recycling Reactor (ARR) focusing on enhancement in transuranics (TRU) burning and americium (Am) transmutation. The design has been conducted in the context of the Global Nuclear Energy Partnership (GNEP) seeking to close nuclear fuel cycle in ways that reduce proliferation risks, reduce the nuclear waste in the US and further improve global energy security. This study strives to enhance the TRU burning and the Am transmutation, assuming the development of related technologies in this study, while the ARR based on mature technologies was designed in the previous study. It has followed that the provided TRU burning core is designed to burn TRU at 28 kg/TW_thh, by adding moderator pins of B₄C (Enriched B-11) and the Am transmutation core will be able to transmute Am at 34 kg/TW_thh, by locating Am blanket of AmN around the TRU burning core. It indicates that these concepts improve TRU burning by 40-50% than the previous core and can transmute Am effectively, keeping the void reactivity acceptable.     

利用低品位石灰石生产低碱水泥的研究与实践

介绍了碱集料反应和国内外碱集料反应对混凝土的破坏情况,在试验基础上,突破传统的水泥配料模式,利用低品位石灰石、砂岩、矾士渣等生产出了高性能低碱水泥。     

凸—ARR非稳腔被动锁模和调Q激光的腔内倍频

采用凸－ARR（抗共振环）非稳谐振腔,BBO晶体作为腔内倍频元件,在Nd:YAG被动锁模和Nd:YAG,Cr^4 :YAG被动调Q激光器中实现腔内倍频运转,分别获得了倍频能量转换效率为63．6％和31．5％。实验结果指出,提高基波光功率密度可大大提高脉冲激光的倍频能量转换效率。     

Identification of BcARR Genes and CTK Effects on Stalk Development of Flowering Chinese Cabbage

Flowering Chinese cabbage (Brassica campestris L. ssp. Chinensis var. utilis Tsen et Lee) is an important and extensively cultivated vegetable in south China, whose major food product is the stalk. In the process of stalk formation, its initiation and development are regulated by a series of hormonal signals, such as cytokinin and gibberellin. In this study, we analyzed the effects of zeatin (ZT) and gibberellin A3 (GA3), and their interaction, on the bolting of flowering Chinese cabbage. The results indicated that the three-true-leaf spraying of ZT and GA synthesis inhibitor (PAC) inhibited plant height but increased stem diameter. Cytokinin (CTK) synthesis inhibitor (YZJ) and GA3 treatment increased plant height and decreased stem diameter. In addition, ZT and GA3 co-treated plants displayed antagonistic effect. Further, 19 type-B authentic response regulators (ARR-Bs), the positive regulators of cytokinin signal transduction were identified from flowering Chinese cabbage. Comprehensive analysis of phylogeny showed BcARR-Bs clustered into three subfamilies with 10 conserved motifs. Analysis of their expression patterns in different tissues and at various growth stage, and their response to hormone treatment suggest that ARR1-b localized in the nucleus displayed unique highest expression patterns in stem tips, are responsive both to ZT and GA, suggesting a significant role in mediating the crosstalk of ZT and GA in the bolting of flowering Chinese cabbage.     

对撞腔增强调Q输出能量的分析

引入抗共振环ARR(Anti—Resonant Ring)结构,设计了平-ARR对撞脉冲调Q激光器.在相同的泵浦能量条件下,对撞腔的输出能量高于普通平-平腔50%。根据Cr4 :YAG慢饱和吸收体的调Q速率方程,结合对ARR结构的理论分析,计算机模拟结果和实验数据相当吻合。     

用AHP方法优化电子装备测试点的BITE与ATE分配

针对故障诊断中测试冗余、测试资源分配不合理的问题,首先用解析冗余关系(ARRs)优选出测试点;分析了影响测试资源选择的因素,用层次分析法(AHP)建立了评价指标集的递阶层次结构,确定了各指标的综合权重,最后用模糊综合决策方法实现了测试点的BITE与ATE分层优化,对提高电子装备的诊断能力、降低测试费用具有指导意义。     

Improvement of Mechanical Properties of Magnesium Alloy ZK60 by Asymmetric Reduction Rolling

The improvement of mechanical properties of ZK60 processed by asymmetric reduction rolling(ARR) was investigated in this paper. The grain refinement and basal texture intensity decrease were attributed to the introduction of shear stress produced by ARR process. Compared to conventional symmetrical rolled(SR) ZK60 alloys, ARRed ZK60 exhibited finer, more homogeneous grains and higher mechanical properties. The intensity of basal texture of ARRed ZK60 after annealing was lower than that of SRed ZK60 after annealing. ZK60 sheet with good combination of strength and ductility could be obtained by ARR process. The yield strength(YS) and ultimate tensile strength(UTS) of the ARRed ZK60 sheet were increased 150% and 91.3%, compared to those of SRed ZK60 sheet, from 80 to 200 MPa and from 140 to264 MPa, respectively. Simultaneously, the elongation to failure increased by 68.75% in the ARR sheet(27%) when compared to that of the SR sheet(16%).     

新型解析冗余关系法在传感器故障诊断中的应用

介绍了多容水箱系统所有可能出现的故障类型,并分析了多容水箱系统的结构与特点。利用基于键合图模型的新型解析冗余关系（ARR）方法对多容系统中传感器故障进行了研究。根据键合图理论给出了多容水箱系统键合图模型,通过在系统键合图中加入观测信号和虚拟传感器的方法建立系统的诊断键合,根据诊断键合图模型得到系统的ARR。通过分析诊断键合图的因果关系构建系统的故障特征矩阵。利用20-sim键合图仿真软件对各类故障进行仿真分析,验证了基于键合图模型的新型ARR方法在传感器故障检测与隔离方面的可行性。     

基于模糊控制和SOC自恢复储能参与二次调频控制策略

通过对储能电池基于区域控制偏差ACE信号和区域控制需求ARR信号参与系统AGC控制的优缺点进行分析,提出了一种综合控制方式,并定义了切换的时机和深度。即在系统频率恶化,且|△f|较大时,基于模糊控制理论根据SOC状态来平滑储能电池的出力深度;在系统状态良好,且|△f|较小时,为充分利用传统机组二次调频的剩余调频容量,对储能进行SOC自恢复。并根据定义的评价指标,利用Matlab/Simulink对储能协同传统机组参与电网二次调频,选取典型连续扰动与传统策略进行了对比仿真。结果表明,所提出的控制策略兼顾减少最大频偏和稳态频偏的优点;相较于基于ARR的控制方式对储能电池的容量和功率需求更小,相较于基于ACE的控制方式其调频效果更优且对常规机组的利用率更高;提升了储能电池参与二次调频的调频能力。