“乳都”复苏——呼和浩特市乳业调查记

当牧草开始泛绿芽的时节,笔者回到了自己的家乡,内蒙古呼和浩特,经过半个多月的走访调查,这里的奶牛养殖在经历了“急风暴雨“的考验之后,正在全面复苏。在这个有“中国乳都“之称的城市郊区和周边旗县的农村,你随时都能碰到三三两两的奶牛在漫步,浓浓的牛粪味在空气里飘荡。而更让人欣慰和感动的是,每一个见到你的市、区、乡镇领导都表示,就呼市奶业在全国的地位而言,我们应该把奶牛养好,我们一定要养好奶牛

The Empirical Analysis of Financial Risk Models Based on Quantile Autoregression Estimation

在全球一体化进程不断加快的步伐下，各国之间在金融领域上的合作越来越多，然而金融领域全球化、自由化，必然会形成全球金融风险共振，损失共担的局面。一国发生的金融危机会迅速席卷全球，其破坏性、联动性以及易发性也日益明显。在这样大时代的背景下，对金融风险的研究显得尤为重要，其成果不仅可以提高投资者对金融风险的规避能力，避免重大损失，而且还可以给予政府和金融机构指导作用，保证金融市场平稳、良好有效的运行。基于传统的递归式分位数回归模型CAViaR和分位数自回归GARCH模型及其思想，同时考虑到股指收益率可能存在的自相关性以及金融市场中的交易流动性影响，本文提出AR(p)-QAR-GARCH模型和LA-Q...Under the rapid pace of globalization, nowerdays, the cooperation among countries in finance market and related field become even much more and frequent than the past. However, the phenomenons without doubt, which are financial globalization and financial liberalization, will cause desperate result that is the whole world will have to bear collective responsible and loss caused by the sympathetic ...学位：经济学硕士院系专业：经济学院_统计学学号：1542011115191

The Determinants of Income of Resident in Urban and Rural Areas——Based on the Provincial Panel Data Quantile Regression

随着我国经济的快速发展,居民收入差距逐渐成为众多学者的研究热点之一。本文利用2002-2009年我国30各省市自治区的省际面板数据,运用面板固定效应变换分位数回归方法对影响我国城乡居民收入的影响因素进行了实证分析。研究结果表明,人均教育年限、人均积累资本、就业率以及居民收入结构等因素在城镇与农村问的作用效果有所不同,人均受教育年限在农村中的边际收益更高,就业率在城镇中影响显著,而居民的转移性和财产性收入在总收入中的比重的提高对在城乡间影响作用相反。With the rapid development of our country,the income of people has gradually attracted a large number of scholars,institutions and becomes one of the primary concerns in this age.Meanwhile,increasing househoki income,reducing the income gap between urban and rural areas and maintaining social justice are the first jobs of the government for years.This article focuses on what factors influence the income of urban and rural areas respectively.And based on the interprovincial panel data about household income from 2002 to 2009 in China,we established fixed effects quantile regression model by using entity fixed effects regression and quantile regression.The result shows that factors like the education fixed number of year per capita,accumulated capital per capita,employed rate and the structure of residents' income have different impacts on cities and countryside.According to the research findings,the increasing of education fixed number of year per capita in countryside may has a higher marginal income than that of city.The rising of proportion of transfer and property income act contrary between the city and countryside effect instead.教育部人文社会科学研究青年基金项目(12YJC790263); 国家自然科学基金项目(71201139;71303200); 国家社会科学基金(13&ZD148;13CTJ001)资

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors