查询词典 business cycle

Finite-time thermodynamics was applied to analyze the characteristic of the cycle dimensionless power output the efficiency and the optimal intercooling pressure ratio of an irreversible closed intercooling regenerated Brayton cycle coupled to constant-temperature heat source.

用有限时间热力学方法首次研究了恒温热源条件下不可逆闭式中冷回热燃气轮机循环的功率、效率以及中间压比特性，导出了无因次功率及效率的解析式。

A few years later Keeling observed a second cycle: a hemispherical seasonal cycle of CO2, low in summer and peaking in the winter for the same reason CO2 peaks at night: no greens at work to eat it.

几年后基林观察到了二氧化碳的第二个循环特征：二氧化碳的半球形季节循环，浓度在夏天最低，在冬天达到高峰，和二氧化碳的浓度在晚上达到高峰值的原理一样，没有绿叶的光合作用消耗二氧化碳。

Seven grapevine cultivars originated from different regions, i. e.'Carbernet Sauvignon' and'Queen of Vineyard'(two members of the Western Europe Cultivars Group),'Rizamat'(a member of the East Cultivars Group),'Red Double Taste'(a hybridized cultivar from Vitis vinifera L. and V. labrusca L.),'1103Paulsen','Red Globe'and 'Autumn Royal'(two new hybridized cultivars between cultivars groups which were warmly planted in recent years) were selected. After different drought stress, a combined measurement of gas exchange and chlorophyll fluorescence was conducted to evaluate the effects of drought stress to photoinhibition, as well as the role of photorespiration and xanthophyll cycle in photoprotective mechanism. After photorespiration and xanthophyll cycle were separately inhibited, the complementary effect of these two photoprotective pathways was discussed. Detached leaves of different grapevine cultivars, i. e.'Cabernet Sauvignon','Cabernet Franc','Merlot', and a rootstock,'1103Paulsen'were selected as materials, and photoinhibition degree, photorespiration activity as well as its photoprotective function under drought stress were studied. The results are as follows: 1. Under the same drought stress treatment, different photoinhibition degrees formed in different grapevine cultivars.

本研究选择不同起源地的葡萄品种－－包括西欧品种群的赤霞珠和葡萄园皇后、东方品种群的里扎马特、欧美杂种红双味、美洲种砧木1103Paulsen，以及近年来发展较快的品种群间杂交新品种红地球和皇家秋天等七个品种盆栽苗，在进行不同程度的干旱胁迫处理后，利用气体交换参数和叶绿素荧光参数同步测定的方法，研究干旱对其光抑制程度的影响，以及光呼吸和叶黄素循环组分在其光保护中的作用；并在分别抑制光呼吸和叶黄素循环的基础上，探讨了赤霞珠葡萄两种光保护机制的互补效应；同时选择不同的酿酒葡萄品种赤霞珠、品丽珠、梅鹿辄和砧木1103Paulsen的叶片，研究其离体干旱条件下光抑制程度、光呼吸活性及其光保护作用，结果发现： 1。

We may well explain why ricin-induced apoptosis showed no typical DNA ladder. The presence of laddering in DNA gels implies an apoptosis process, but its absence does not rule out the apoptosis. The ricin 0.05μmol〓 had no effect on the 〓 phase of cell cycle, but induced 〓 arrest. The ricin may affect the balance of synthesis and destruction of proteins that controlling the cell cycle.

检测到DNA梯度表明细胞发生了细胞凋亡，未检测到DNA梯度不能否认凋亡的存在。0.05μmol.L〓的蓖麻毒素对HeLa细胞周期的G〓/G〓期无影响，而诱导了G〓/M期阻滞，蓖麻毒素可能引起一些控制细胞周期蛋白的合成与降解发生紊乱。

Locksman Okufine Lakshman Achuthan of the New York based economic cycle reserch institute York-based Economic Cycle Research Institute says even a slight drop in sales has consequences.

来自纽约经济周期研究所的Lakshman Achuthan 说即使销售稍有下滑也会产生很大影响。

Many criteria and approaches are developed since multiaxial fatigue was studied on high-cycle fatigue and low-cycle fatigue.

对于高周疲劳和低周疲劳分别出现了许多方法和准则。

Also,we prove that for a 2-connected weighted graph,if〓 for every pair of nonadjacent verticesu and v,then the graph contains either a Hamilton cycle or a cycle of lengthat least c and weight at least s.

同时，我们还证明了：如果在一个2连通赋权图G中，对于每一对不相邻的顶点u和v，有〓和〓，那么G或者为Hamilton图或者包含一条长度至少为c，且权至少为s的圈。

Firstly, achieving a new low and high cycle noninterfering loading, the high frequency induction local heating, the control of high cycle vibration frequency and amplitude, and the crack propagation real-time detection, an experimental system of L-HCCF at elevated temperature is established. Secondly, under two vibration frequency (50Hz and 100Hz), the contrast experiment of light and serious corrosion disc slots is done. It is found that the experimental L-HCCF life of serious corrosion disc is less than that of light's, but its dispersion is larger, and the experimental failure is identical with the service's.

首先，进行大量试验工作，提出了高低周疲劳载荷的新型加载方案，并解决了高频感应局部加温、振动调频及裂纹实时监测等多个技术难点，建立了涡轮盘全尺寸高温复合疲劳试验系统；验证试验做到了故障再现；接着进行了两种频比（振频50HZ与100HZ）的轻、重腐蚀盘的对比试验；由对榫槽第一齿进行裂纹实时跟踪，得出了枞树型榫槽的复合疲劳裂纹扩展特点规律；对榫齿断口进行的金相分析表明：裂纹首先由第一齿开始，断口系复合疲劳；试验结果显示：重腐蚀盘试验寿命较轻腐蚀盘有显著的下降，而且分散性较大。

Based on Chaboche's Continuum Damage Mechanics Model, this study suggested low-cycle fatigue damage model under nonproportional loading, in which maximum shear stress and mean hydrostatic stress are considered as two basic parameters and nonproportionality of loading path is considered as a damage parameter to enter damage evolution equation which may well describe damage evolution law of low-cycle fatigue under nonproportional loading.

按Chaboche的连续损伤力学方法建立的多轴非比例加载下低周疲劳损伤模型，以最大剪应力和平均静水应力作为两个基本参量，将路径的非比例度作为损伤参量引入损伤演化方程中，可以较好地描述非比例加载下低周疲劳的损伤演化。

First, from the point of view of production and management, the importance for developing TTU is pointed out.the status in quo of technology,The direction of progress,The demand of practical and fundamentality in Distribution Automation are analyzed for Transformer Terminal Unit. The function of equipment and technical specification which meet demand of practical duty are indicated; Second, the scheme of synchronous sampling,quasi-synchronous sampling,non-integer cycle sampling,nonsynchronous sampling and algorithm are analyzed in detail. Then,the scheme of nonsynchronous sampling and multi-chunnel is ascertained. Moreover, the method of disposal sampling data for increasing precision which calculate the number of sampling per cycle dramatic by searching zero is introduced. The technique for analyzing data,stating data,storage data for Electrical Power Quality and control scheme for compensation capacitor are explained also. Finally, The scheme and structure of hardware,key circuitry using 80C196 singlechip,the scheme and ideology of software and flow chart of part software is introduced simply.

文中首先从电力生产、管理角度出发，指出了研制配变监测终端的重要意义，分析了配变监测终端的技术现状、发展趋势、现场需求以及在配网自动化中的基础地位，提出了满足实际运行要求的装置功能、技术要求；然后对目前常用的同步采样、准同步采样、非整周期采样、非同步采样的方案和算法进行了详细的分析、比较、筛选，确定了非同步采样和顺序采样的方案，并提出了一种寻找过零点从而动态计算每周采样点数的提高精度的采样数据处理方法，文中对装置中电能质量分析、统计、存储的方法以及补偿电容器的控制方案和投切原则也做了重点说明；最后，对应用80C196单片机系统研制的装置的硬件方案、结构以及关键电路和软件设计思路、方案、部分主要软件模块的流程图做了介绍。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。