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双语推荐：变动规律

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产业结构升级是新型城市化的加速器。基于旅游产业的经济学属性选择了旅游产业结构及升级为对象，提出了“城镇居民旅游支出收入弹性”概念，根据1999~2012年的统计年鉴数据，计算了城镇居民花费占旅游总花费的比重、旅游总花费相对变动、城镇居民花费相对变动、城镇单位就业人员工资总额相对变动以及城镇居民旅游支出收入弹性，得出了市场提供的旅游产品是不是符合新型城市化的规律是值得关注的结论，最后指出了旅游产业结构升级的低碳方向。
The upgrading of industrial structure is the accelerator of new urbanization. The tourist industrial structure and upgrading were chosen as research objects,and the concept of income elasticity of urban residents’tourist spending was provided. Based on the statistical data from 1999 to 2012,the calculations about the proportion of urban residents’tourist spending to the total tourist spending,the percentage change of the total tourist spending,the percentage change of urban residents’tourist spending,the percentage change of the total income of the employed and income elasticity of urban residents’tourist spending were gained. It is important for the market to supply tourist products and meet the needs of new urbanization principles,and the upgrading of industrial structure of ourist industry should choose the low-carbon direction.

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气候变迁对中国古代农业社会有着重要的影响。文中以甘肃庆阳为研究区域,从农业技术及社会发展对气候变迁的响应、冷暖气候期历史大事件发生率的比较,以及环境与人口及社会的相关数学模拟三个方面,对庆阳近5000年气候变迁与社会变动的相关进行了分析和模拟,旨在通过对典型地区及典型事件的研究寻找气候变迁与社会变动的规律与响应关系。结果表明：气候变迁引发自然灾害与社会事件为正相关关系。环境变迁引发社会变动,影响着人文环境和社会发展。
Climate changes had greatly influenced ancient China,a typical agricultural society.In this paper,the interrelationship between climate changes and social alteration of 5000 years in Qingyang of Gansu was analy-sized from 3 aspects:the response of agricultural technologies and social development to climate changes;histori-cal memorabilia comparison in cold and warm periods:mathematics interrelated simulation of environment,popu-lation and society.which showed that the climate changes caused the eco-environmental changes,and accord-ingly caused social alteration.

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基于产业结构贡献统计的多部门经济模型,分析1951—2012年广西产业结构变动对经济增长贡献的时间差异和2002—2012年广西各地区产业结构变动对区域经济增长贡献的空间差异。受计划经济和市场经济下不同政策手段与方式的影响,在时间上广西产业结构变动对经济增长贡献呈两阶段波动收敛,在空间上三大经济区呈自西向东梯度推移的规律性变化,因受二产不断增加因素的影响,14个城市间产业结构变动过程差异显著,且三大经济区和14个城市的经济政策使产业结构变动与区域经济增长呈反向变化。后工业社会和市场经济条件下,完善开放统一要素市场,促进要素资源流动,构建分工合理与布局科学的产业体系,逐步以间接调控方式并遵循市场规律来推动产业结构优化和升级,应成为国家从宏观层面制定产业结构调整政策时需要考量的重点。
Based on the contribution of industrial structure statistical multispectral economic model , this paper analyzes the time difference for industrial structure change to the contribution of economic growth in Guangxi from 1951 to 2012, and the space difference for industrial structure change to regional economic growth in Guangxi from 2002 to 2012.Results show that, under the influence of different policy means and modes which is planned econo -my and market economy, industrial structure change contribution to economic growth in Guangxi appearing two phase fluctuations of convergence on the time , three economic zones show regular change of gradient goes from west to east on the space.Due to the secondary industry growing factors , the industrial structure change process of 14 cities is significant difference, the economic policies of the three major economic zones and the 14 cities make it re-verse change between the industrial structure change and the regional economic growth

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应用本征正交分解(POD)方法对一台4气门直喷式汽油机(DISI)缸内冷态湍流流场试验测量数据以及大涡模拟计算数据进行了分析,以深入考察该汽油机缸内湍流场拟序结构特性以及湍流场循环变动特性.结果表明,POD 方法可以将流场湍流涡团结构按照含能数量进行分解,大尺度拟序结构和小尺度随机脉动涡团可以被有效分离,为研究其各自的形成与演化特征创造了条件.考察各模态的时间系数在不同周期间的统计变化规律,可以了解流场湍流结构的循环变动特性.相比较使用传统相平均方法来研究汽油机循环变动,POD 方法可以单独研究不同能量涡团结构的循环变动特点,为进一步深入理解循环变动特性奠定基础.
Proper orthogonal decomposition(POD)method was used to analyze the PIV measurement data and large eddy simulation results of the in-cylinder cold-state turbulent flow in a four valve DISI engine, for deeply understanding the characteristics of in-cylinder turbulence coherent structures and cycle-to-cycle variations(CCV). Computational results show that POD method can decompose the turbulence flow ac-cording to their energetic behavior,and it can effectively distinguish large scale coherent structures and small scale stochastic vortexes , providing a basis for studying their evolution rules separately. Moreover,by examining the inter-cycle change in the time-dependent coefficients for each spatial mode,CCV characteristics of in-cylinder turbulence structure is captured. Compared with traditional phase average method in analyzing CCV,POD method can provide more detailed information based on the separated vortex structures,which provides the basis for further understanding of CCV.

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运用Morlet连续复小波函数分析鄱阳湖星子水文站1953年~2012年历年年均水位变动的多时间尺度演变特征，并在水位变动的小波方差分析结果的基础上运用surfer8.0绘制出控制鄱阳湖历年年均水位演变的主周期趋势图。结果表明，鄱阳湖历年年均水位在不同时间尺度的分辨率条件下，其序列显现出不同的周期交替现象，演变过程中存在着25~32、19~23、8~15年以及3~7年4类时间尺度的周期变化规律；其变动存在3个较为明显的峰值，依次对应着28、22、5年的时间尺度；3类时间尺度具有较明显的局部化特征，前两个时间尺度上，年均水位变动的平均周期为19、15年左右，在5年时间尺度上，历年年均水位变动的频率变化较快，同时振荡行为也较明显。
The mean annual water levels from 1953 to 2012 in Poyang Lake are selected as the study object, and the complex continuous Morlet wavelet is used to study the multi-time-scale variation characteristic of water level fluctuations. Based on the wavelet variances, the primary period trend graphs that control the mean annual water level fluctuations of Poyang Lake are drawn out. The results show that: (a) there are four cycle variations (i.e. years of 25-32, 19-23, 8-15 and 3-7) in mean annual water level fluctuations in Poyang Lake, and the strength and distribution of each cycle variation is different as well as the catastrophe point; (b) the mean annual water level fluctuations are mainly in the presence of three conspicuous peaks, which are in correspondence with the time scales of years of 28, 22 and 5 in Poyang Lake;and (c) each different time scale has apparently localized features, i.e. the mean water level fluctuation cycle is about 19 years in the 28-year time scale and

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近年来，山东省城镇居民整体消费水平逐渐提高，但消费结构仍存在不合理现象。选用9年山东省城镇居民消费结构数据，对山东省城镇居民消费结构进行主成分分析。从总体上掌握山东省消费结构变动的规律和特点，为山东省制定消费政策提供建议。
In recent years,urban residents of Shandong province have gradually enhanced their overall consumption levels, but the consumption structure still has unreasonable phenomenon. By choosing nine years of consumption structure data of Shandong province urban residents,the principal component analysis is carried out on the urban residents'' consumption structure of Shandong province. The rules and characteristics of the consumption structure change of Shandong province are overall grasped;it can provide suggestions for the development of the consumption policies of Shandong province.

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从入境旅游流空间转移角度出发,利用指数分析、竞争态矩阵分析等方法,研究了东部三大区入境旅游流向四川省扩散转移特征及规律。并得出结论:珠三角区向川转移入境游客量最多,其次是环渤海,长三角最少;三大区向川流年际变动强度都较大,客流不稳定;四川省对三大区入境游客吸引力都较弱,吸引力相差不大;三大区向川流的市场占有率和转移增长率年际变动较大。四川旅游在拓展三大区入境旅游客源市场方面还需进一步努力。
By index analysis,analysis of competitive state matrix and other methods,we studied the characteristics and patterns of diffuse and transfer of inbound tourist flow from Circum Bohai Sea,Yangtze River Delta and Pearl River Delta to Sichuan Province. The research came to the conclusion：the number of inbound tourists transfered from Pearl River Delta is the largest,the second largest is Circum Bohai Sea,and Yangtze River Delta is the least; the number of tourist flow from three major areas to Sichuan changes largely among years,and tourist flow is also instable; the Sichuan＇s attraction to inbound tourist flow of the three major areas is almost the same,which is all weak ;the market share and transfer growth of tourist flow from three major areas to Sichuan change largely. Sichuan Tourism needs to make further efforts on expanding inbound tourist market in three major tourism areas.

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为了降低稀燃CNG发动机燃烧循环变动,设计了一种双线圈点火系统。利用Multisim软件仿真研究了新点火系统次级电压的变化规律,并在发动机台架上研究了此点火系统对CNG发动机燃烧稳定性的影响。次级电压的仿真结果表明,在不同放电间隔的条件下,新点火系统分别能够有效提高次级电压,增加火花持续期并能实现多次放电。台架试验表明,在合适的放电模式下新点火系统能够降低发动机的循环变动系数,提高稀燃CNG发动机燃烧稳定性。
In order to reduce cyclic variation, a dual-coil ignition system for a CNG engine was proposed in this pa-per. Using Multisim software, the change rule of secondary voltage of the new ignition system was studied. The im-pact of this ignition system on combustion stability of the CNG engine was studied on the engine test bench. Experi-mental results of secondary voltage show that compared with single-coil ignition, the new ignition system can effec-tively increase secondary voltage, extend spark duration and achieve multiple discharges under different discharge interval conditions. Bench test shows that, in a suitable discharging mode, this system can reduce the probability of misfire and the cyclic variation coefficient of CNG engine, consequently it improves the combustion stability of lean burn CNG engine.

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从一般无形资产的研究理论出发,结合建筑施工企业的行业特点对建筑施工企业的主要无形资产进行归类,提出关于建筑施工企业无形资产与核心竞争力的关系,阐述各类无形资产的价值变动规律,为建筑施工企业提供一个更广阔的视野进行管理决策。
Beginning with the general theory of intangible assets,according with the special features of construction companies,this article classify their main intangible assets and propose the relationship between the intangibles and core competence.Then the present author il-lustrates the intangible assets’ value change rule which offers a more comprehensive view for management decision.

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由于猪肉在构成我国CPI的所有规格品中所占权重最高，因此猪肉价格波动成为近年来物价变动的重要推手。本文分析了我国生猪价格波动的周期规律，探究了影响生猪价格波动的关键因素，并提出了平抑生猪价格波动幅度、营造宏观调控良好物价环境的相关建议。
Pork price fluctuation is a major driving force of CPI in China due to its significant weight in CPI index. This paper conducts a study on the cyclical fluctuations of pork price in China. It first explores the factors affecting pork prices,then gives reasonable policy advice on how to smooth the cyclical fluctuations of pork price in China. Hopeful-ly,these suggestions can help to build a convenient macro-policy environment in China.

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