Journal of Water Resources Research最新文献

{"title":"Recognition of Tide and Tidal Current Movement in the Yangtze Estuary","authors":"余 文畴","doi":"10.12677/JWRR.2017.65056","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65056","url":null,"abstract":"通过对潮位、比降、流速周期性变化内在关系的分析，揭示了长江口河段潮位、潮差、比降变化与径流之间的宏观关系。研究结论认为：长江口平均潮位向海沿程降低，比降沿程减小，年平均潮差逐渐增大，至牛皮礁站附近达到最大，体现了径流与潮汐动力强弱变化的过程。通过对潮差的研究，发现长江口潮差变化的分区界限，其上下遵循不同的规律，而且这个界限随径流的增大而下移，小水年在白茆~杨林之间，大水年在石洞口~高桥之间。通过对比降以及比降和潮流速周期之间的关系研究，揭示了由于径流的惯性作用，使得潮流的变化滞后于比降的变化。这些研究结论在河道治理及航道整治中，对长江口不同的区段采取不同的治理方案具有指导意义。 Based on the analysis of the relationship between the tide level, the specific gradient and the periodic variation of the flow velocity, the study concluded that: The average tide of the Yangtze River estuary is decreasing along the path; the slope is decreasing along the way; the average tidal range increases gradually, to reach the maximum station near the cowhide reef, which reflects the process of runoff and tidal power change. Through the study of the Yangtze River Estuary tidal range, it found that the Yangtze River Estuary tide follows different rules and variable partition boundaries, and the limit decreases with increasing runoff. The boundaries located between Baimao and Yanglin stations in flood years, and located between Shidongkou and Gaoqiao stations in dry years. Through comparative research on the relationship between the slope and tidal velocity cycle, which reveals the change of trend lags behind the change of slope due to the inertia the runoff. These conclusions are of guiding significance for different channel sections of the Yangtze River in the channel regulation and channel regulation.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"428 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116723032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Correlation between River Flows Using Copula-Entropy Method","authors":"黄 康迪","doi":"10.12677/JWRR.2017.65050","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65050","url":null,"abstract":"研究长江干流及其支流之间的总相关性对于长江上游的水力设计、防洪和风险控制非常重要。针对现有的相关性计算方法的不足与缺陷，本文引入Copula熵方法，用来计算多变量之间的相关结构，并推导出Copula熵与互信息的关系与计算方法，采用多重积分法和蒙特卡罗法估计多变量之间的相关性特征。以长江上游的五条主要干支流：金沙江、岷江、沱江、嘉陵江和乌江为研究对象。计算结果表明，当使用不同的Copula函数时，总相关值存在显著差异。长江上游干支流河流之间的总相关性不大，其中岷江和沱江之间的相关性最大，金沙江，岷江和沱江之间也存在一定的相关性，因此，这几条河流有洪水遭遇的可能，对三峡大坝的防洪构成了威胁。 Analysis of the dependence between the main stream and its upper tributaries is important for hydraulic design, flood prevention and risk control. In order to solve the disadvantages of the current hydrologic correlation analysis method, the method of copula entropy was introduced to estimate the dependence between Hydrological variables. The relationship between copula entropy and mutual information was discussed and the calculation procedures of copula entropy were deduced, and multiple integration and Monte Carlo methods were used to calculate the copula entropy. The upper Yangtze River was selected for case study. Results show that there is a significant difference in total correlation values, when different copula functions were used. The total correlation among the rivers is not high, and the one between Min and Tuo Rivers is the largest. There are some dependence among Jinsha, Min and Tuo Rivers, which constitutes a threat to flood control by the Three Gorges Dam (TGD). The flows of Jinsha, Jialing, Min and Tuo Rivers significantly influence the flood occurrence in the Yangtze River.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128092408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"长江上游水库群提前蓄水联合优化调度研究 Optimal Joint Early Refill Operation of Multi-Reservoir System in Upper Yangtze River","authors":"郭生练, 陈柯兵, 刘攀, 何绍坤, 张剑亭","doi":"10.12677/JWRR.2017.65049","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65049","url":null,"abstract":"综述水库群汛末提前蓄水调度的研究进展和存在的问题。通过解析复杂串并联水库群的空间分区解耦原理，研究分区控制的动态蓄水理论和方法。以变化环境下的水库群最优蓄水时机选择为切入点，建立水库群多目标联合蓄水调度模型并求解。制定基于分区控制的长江上游控制性水库蓄水方案及评价指标体系。溪洛渡、向家坝和三峡梯级水库的模拟调度结果表明，在确保防洪安全和满足其他约束条件的前提下，提前蓄水的年均发电量可增加30.44亿kW•h (增幅4.89%)，并显著地提高了水库群的汛末蓄满率及水资源利用率。 The advanced researches and related problems of early refill operation for multi-reservoir system were reviewed. The theory and method of dynamic refill operation was studied through analyzing the spatial aggregation and decomposition of complex cascade and parallel reservoirs. After selected the best multi-reservoirs refill chances under the change environment, a multi-objective joint refill operation model was proposed and then solved by optimization algorithms. The joint refill operation schemes of multi-reservoirs as well as the assessment index in the upper Yangtze River were suggested. The simulated refill operation results of the Xiluodu-Xiangjiaba-Three Gorges reservoirs show that the hydropower generation can increase 3.044 billion kW•h (or 4.89%) annually during refill period under the conditions of satisfying flood control safety and other constrains, and the refill storage rate and water resources utilization rate are also significantly increased.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128876957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"水中氨氮检测能力验证考核活动回顾性评价 A Retrospective Review on the Proficiency Testing (PT) for the Detection of Ammoniac Nitrogen in Water","authors":"夏栩, 崔勇","doi":"10.12677/JWRR.2017.65053","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65053","url":null,"abstract":"参加了“2016年水利系统水质监测机构水中氨氮检测能力验证”考核活动，采用纳氏试剂分光光度法进行检测并提交数据，验证结果为满意。为进一步提高实验室检测能力及质量管理水平，对此次考核活动检测过程及结果进行回顾性评价。结果表明，创新性提出以浓度预判为基础、突出预防优先、强调数据评估的全过程质量控制理念是此次考核成功的重要保障，以此为基础制定合理的考核方案并对考核过程及考核结果进行标准曲线、精密度、准确度等自我评估，可有效减少测定误差、确保考核活动获得满意结果。 The detection of ammoniac nitrogen is the measurement of certification projects must be implemented by the water environment monitoring laboratory. After participated the “2016 proficiency testing (PT) for the detection of ammoniac nitrogen in water for the environmental monitoring laboratory in water conservancy system” assessment activities, the Nessler reagent spectrophotometric method was used to detect and submit data to verify the results for the satisfaction. In order to improve the proficiency and quality management level of the laboratory, this paper retrospectively reviews the process and results of the proficiency testing (PT). The results show that the innovation is based on the pre-determination of the concentration, highlighting the priority of prevention, emphasizing the whole process of quality assessment of data assessment concept is an important guarantee for the success of this assessment, as a basis for the development of a reasonable assessment program and assessment process and assessment. The results of the standard curve, precision, accuracy and other self-assessment can effectively reduce the measurement error, which ensures that the assessment activities to obtain satisfactory results.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133496371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"不同保证出力对溪洛渡–向家坝梯级年发电调度影响研究 The Influence of Different Guaranteed Output on the Annual Generation Dispatching of Xiluodu and Xiangjiaba Cascade Hydropower Stations","authors":"李英海, 张琪, 董晓华, 郭家力, 林伟","doi":"10.12677/JWRR.2017.65051","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65051","url":null,"abstract":"以金沙江下游溪洛渡–向家坝梯级水电站为对象，开展不同保证出力对梯级年发电调度的影响研究。首先以梯级年发电量最大为目标构建优化调度模型，进而将两电站保证出力转化为最小出力约束条件，采用动态规划法对模型进行求解。实例计算结果表明，当上游溪洛渡电站保证出力不变时，增大向家坝电站保证出力，则溪洛渡电站的年发电量不变，而向家坝电站以及梯级年发电量减小；当下游向家坝电站保证出力不变时，增大溪洛渡电站保证出力，则溪洛渡电站的年发电量减小而向家坝电站增大，梯级年发电量减小；不同保证出力对梯级最优调度过程的影响主要体现在汛前1~6月份，而在7~12月份保持不变。 The influence of different guaranteed output on annual generation dispatching of the Xiluodu and Xiangjiaba cascade hydropower stations was studied. Firstly, the dispatching model targeting the maximum of annual cascade generation was built and solved by dynamic programming method with different guaranteed output constraints. The results show that when upstream Xiluodu’s guaranteed output is unchanged and Xiangjiaba’s guaranteed output increases, the annual power generation of Xiluodu will be unchanged, and the annual power generation of Xiangjiaba and the cascade stations will decrease. When downstream Xiangjiaba’s guaranteed output is unchanged and Xiluodu’s guaranteed output increases, the annual power generation of Xiluodu will decrease and Xiangjiaba will increase, the cascade stations will decrease. Effects of different guaranteed output on optimal scheduling of cascade process are mainly reflected in the flood season from January to June, while it remains unchanged from July to December.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"47 22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127888287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"基于Copula函数的嘉陵江流域干支流洪水遭遇分析 Flood Coincidence Probability Analysis for Mainstream and Tributaries of the Jialing River Basin Based on Copula Function","authors":"冉啟香, 彭畅, 凌旋","doi":"10.12677/JWRR.2017.65054","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65054","url":null,"abstract":"洪水遭遇是一个多变量水文事件，目前研究多限于对实测资料进行统计分析。基于二维copula函数分别建立嘉陵江干流北碚站与支流小河坝站、罗渡溪站、武胜站洪峰流量的联合分布。计算各站不同重现期的设计洪水，推求出对应的洪水遭遇概率。结果表明，嘉陵江流域低重现期洪水遭遇概率大于高重现期；同一重现期下，嘉陵江各支流与干流(北碚站)的洪水遭遇概率，渠江大于嘉陵江，涪江最低。此方法为计算洪水遭遇分析计算提供了一条新途径。 Flood coincidence probability is a multivariable hydrologic event. At present, the research is mostly limited to the statistical analysis of observed data. In this study, the annual maximum flood peak data of four hydrological stations in Jialing River and its tributaries, including the Beibei, Xiaoheba, Luoduxi and Wusheng station, are selected for case study. The bivariate copula functions are introduced and used to construct the joint distributions of flood peak. The design flood and flood coincidence probability are computed for different return periods. The result shows that the flood coincidence probability of high return periods is smaller than low return periods. The flood coincidence probability of Jialing River and its tributaries in the same return periods, Qujiang River is greater than Jialing River, and Fujiang River is among the smallest. This study will provide a new approach for Flood encounter analysis.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122153323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"应用Infoworks RS模拟溃堤洪水 Application of InfoWorks RS to Simulate Dike-Break Floods","authors":"李亚琳, 王小笑","doi":"10.12677/JWRR.2017.65052","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65052","url":null,"abstract":"溃堤洪水具有历时短、速度快、流量大的特点，往往会对保护区内人民财产安全造成巨大影响。以江西省丰城大联圩防洪保护区为例，应用InfoWorks RS软件，从水力学、水文学、风险分析理论出发，通过数值计算、数理统计等技术手段，对赣江设计洪水及超标洪水进行溃堤洪水模拟分析，模拟了不同方案下溃堤洪水演进过程，统计了洪水淹没水深、面积等洪水影响要素。该分析成果为防洪减灾、灾害评估、避洪转移和人民财产安全保护提供了科学依据。 The dike-break flood has the characteristics of short duration, fast speed and large flow rate, which will cause great influence on the safety of the people’s property in the protected area. Based on the theory of hydraulics, hydrology and risk analysis, this paper uses the technical methods such as numerical calculation and mathematical statistics to simulate the dike-break flood under design and over-standard flood in the Ganjiang River. InfoWorks RS is employed to simulate the protection area of Fengcheng Dikes in Jiangxi Province. The flood routing and factors, such as inundated depth and area, are analyzed under different simulation cases. The results provide the scientific basis for flood prevention and mitigation, disaster assessment, flood transfer and protection of the people’s property.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122737619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"修水干流水位流量变化趋势分析 Variation Trend Analysis of Water Stage and Discharge in Xiu River","authors":"桂笑, 江虹, 杨嘉","doi":"10.12677/JWRR.2017.65057","DOIUrl":"https://doi.org/10.12677/JWRR.2017.65057","url":null,"abstract":"通过分析研究修水水位流量关系变化，查找造成水位流量关系发生变化的客观原因，探讨其变化规律，为科学治水、科学决策、科学防灾减灾、科学抢险提供依据。采用修河干流代表站的系列水文资料，对典型站断面冲淤、水位流量变化进行分析，统计不同水文站断面冲淤、水位流量变化，得出修河干流的水位流量变化规律。结果表明；修河干流受河道采砂影响，水位~流量关系不稳定。 Through analyzing the variation of water stage and discharge at Xiu River, variable reasons and rules were explored, which provides certain scientific basis for water conservancy, decision making, disaster prevention, disaster reduction and emergency rescue. The hydrological data series at main stream representative station of Xiu River were used to analyze the section scouring and silting and the change of water level and river flow. The change rules of the water level and river flow in Xiu River was obtained. The result shows that being affected to sand extraction, the water level and river flow in Xiu River main stream are unstable.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122639835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"基于可变模糊综合评判法的山洪灾害脆弱性分析 Vulnerability Assessment of Torrent Flood Disasters Based on Variable Fuzzy Comprehensive Evaluation Method","authors":"刘惠敏, 刘宽, 王文川, 徐冬梅","doi":"10.12677/JWRR.2017.64040","DOIUrl":"https://doi.org/10.12677/JWRR.2017.64040","url":null,"abstract":"山洪灾害脆弱性是指人们抵抗和应对洪灾的能力以及在遭受洪灾后从不利影响中恢复的能力。本文综合考虑哈尔滨市水文指标及经济发展现状，选取12项灾害脆弱性指标，采用层次分析法确定指标权重，建立可变模糊综合评判模型，对哈尔滨的12个县(市、区)进行山洪灾害脆弱性综合评价。建立的模型考虑了评价标准区间值对评价结果的影响并进行了四组组合参数下的综合评价，提高了脆弱性评价结果的可信度和可靠性，对哈尔滨市山洪灾害减灾抗灾具有现实意义。 The vulnerability of mountain torrents refers to the ability of people to resist and cope with floods and the ability to recover from adverse effects after suffering from floods. In this paper, the variable fuzzy comprehensive evaluation model is established by comprehensively considering the hydrological indi-cators and economic development of Harbin. The comprehensive evaluation of the vulnerability of mountain flood disaster of 12 counties (cities, district) are carried out by selecting 12 disaster vulnera-bility indicators, and using the analytic hierarchy process to determine the index weights. The variable fuzzy comprehensive evaluation method takes into account the influence of the evaluation standard in-terval value on the evaluation results and carries out the comprehensive evaluation under the four com-binations of parameters to improve the credibility and reliability of the vulnerability assessment results, which has practical significance.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128662618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measuring and Mapping the Impact of Land Use and Land Cover Change on the Hydropower Production—A Case Study of Jiulong River in Fujian Province","authors":"黄珠美, 彭本荣","doi":"10.12677/JWRR.2017.64044","DOIUrl":"https://doi.org/10.12677/JWRR.2017.64044","url":null,"abstract":"水电是全球利用最广泛的可更新能源，其生产能力对土地利用/覆被的变化非常敏感。研究土地利用/覆被变化与流域水电生产的数量、价值及其空间分布的关系是流域水资源规划和管理的基础。本论文应用InVEST模型评估九龙江流域土地利用/覆被变化对水电生产数量及其价值的影响。结果表明：2000~2010年间，九龙江流域内，土地利用/覆被主要由蒸散量较大的耕地和林地转化为蒸散量较小的建设用地，产水量增加了0.66%。但由于耕地和建设用地的耗水量较其他土地利用/覆被类型大，水电生产的供水量却降低了8.46%，导致流域年均水电生产量减少1.22亿kwh，年均利润减少0.40亿元，减少幅度分别达到5.56%和6.69%。流域内水电生产数量减少主要是由土地利用/覆被变化大的城市子流域发电量减少引起的。模型验证结果显示，模型结果与实际产水量、发电量的误差分别在6%和5%以内，模型具有很高的可靠性。研究同时显示，九龙江流域产水量由上游向下游递减，上游子流域单位面积和万吨供水量水电生产的潜力最高，对流域水电生产的贡献最大，因此上游子流域的保护对流域水供给服务和水电服务能力的保障非常关键。 As the most widely used form of renewable energy in the world, the hydropower production is very sensitive to the land use and cover change (LUCC). Measuring and mapping changes in the quantity and value of hydropower production are the basis of water resource management and watershed spatial planning. This paper evaluated the impacts of LUCC on the hydropower production in Jiulong River watershed (JRW) employing the reservoir hydropower production and valuation model of InVEST. The results show that the water yield increased by 0.66% from 2000 to 2010 in JRW since LUCC is mainly converted from arable land and forest with higher evapotranspiration to construction land with lower evapotranspiration. However, the annual water supply for power generation decreased by 8.46%, due to the water consumption in arable land and construction land are higher than other land cover type, which resulted in 1.22 × 108 kwh decrease of the annual hydropower production and 4.0 × 107 yuan decrease of net present value separately. The reduction of hydropower production and its value are mainly located in urban subwatersheds whose land use cover change significantly by transforming the forest and arable land to the construction land. The model error is in the range of 6% and 5% of the actual water production and power generation respectively, and the model has high reliability. The results also show that the volume of water yield decreased from upstream to downstream, and the hy-dropower production capacity of subwatersheds in upstream is much higher than that of the down-stream. The subwatersheds in the upstream with higher water yield are critical to the water supply services in the JRW, which should be conserved when developing the spatial planning and other so-cial-economic planning in the watershed.","PeriodicalId":349946,"journal":{"name":"Journal of Water Resources Research","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126816943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}